Class BasicDataSource
- java.lang.Object
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- org.apache.tomcat.dbcp.dbcp2.BasicDataSource
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- All Implemented Interfaces:
AutoCloseable,Wrapper,MBeanRegistration,CommonDataSource,DataSource,BasicDataSourceMXBean,DataSourceMXBean
public class BasicDataSource extends Object implements DataSource, BasicDataSourceMXBean, MBeanRegistration, AutoCloseable
Basic implementation ofjavax.sql.DataSourcethat is configured via JavaBeans properties.This is not the only way to combine the commons-dbcp2 and commons-pool2 packages, but provides a one-stop solution for basic requirements.
- Since:
- 2.0
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Constructor Summary
Constructors Constructor Description BasicDataSource()
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Method Summary
All Methods Static Methods Instance Methods Concrete Methods Deprecated Methods Modifier and Type Method Description voidaddConnectionProperty(String name, String value)Adds a custom connection property to the set that will be passed to our JDBC driver.voidclose()Closes and releases all idle connections that are currently stored in the connection pool associated with this data source.protected ConnectionFactorycreateConnectionFactory()Creates a JDBC connection factory for this data source.protected voidcreateConnectionPool(PoolableConnectionFactory factory)Creates a connection pool for this datasource.protected DataSourcecreateDataSource()Creates (if necessary) and return the internal data source we are using to manage our connections.protected DataSourcecreateDataSourceInstance()Creates the actual data source instance.protected GenericObjectPool<PoolableConnection>createObjectPool(PoolableConnectionFactory factory, GenericObjectPoolConfig<PoolableConnection> poolConfig, AbandonedConfig abandonedConfig)Creates an object pool used to provide pooling support forJDBC connections.protected PoolableConnectionFactorycreatePoolableConnectionFactory(ConnectionFactory driverConnectionFactory)Creates the PoolableConnectionFactory and attaches it to the connection pool.voidevict()Manually evicts idle connectionsPrintWritergetAbandonedLogWriter()Gets the print writer used by this configuration to log information on abandoned objects.booleangetAbandonedUsageTracking()If the connection pool implementsUsageTracking, should the connection pool record a stack trace every time a method is called on a pooled connection and retain the most recent stack trace to aid debugging of abandoned connections?booleangetAutoCommitOnReturn()Returns the value of the flag that controls whether or not connections being returned to the pool will be checked and configured withConnection.setAutoCommit(true)if the auto commit setting isfalsewhen the connection is returned.booleangetCacheState()Returns the state caching flag.ConnectiongetConnection()Creates (if necessary) and return a connection to the database.ConnectiongetConnection(String user, String pass)BasicDataSource does NOT support this method.StringgetConnectionFactoryClassName()Returns the ConnectionFactoryClassName that has been configured for use by this pool.List<String>getConnectionInitSqls()Returns the list of SQL statements executed when a physical connection is first created.String[]getConnectionInitSqlsAsArray()Provides the same data asgetConnectionInitSqls()but in an array so it is accessible via JMX.protected GenericObjectPool<PoolableConnection>getConnectionPool()BooleangetDefaultAutoCommit()Returns the default auto-commit property.StringgetDefaultCatalog()Returns the default catalog.IntegergetDefaultQueryTimeout()Gets the default query timeout that will be used forStatements created from this connection.BooleangetDefaultReadOnly()Returns the default readOnly property.StringgetDefaultSchema()Returns the default schema.intgetDefaultTransactionIsolation()Returns the default transaction isolation state of returned connections.Set<String>getDisconnectionSqlCodes()Returns the set of SQL_STATE codes considered to signal fatal conditions.String[]getDisconnectionSqlCodesAsArray()Provides the same data asgetDisconnectionSqlCodes()but in an array so it is accessible via JMX.DrivergetDriver()Returns the JDBC Driver that has been configured for use by this pool.ClassLoadergetDriverClassLoader()Returns the class loader specified for loading the JDBC driver.StringgetDriverClassName()Returns the JDBC driver class name.booleangetEnableAutoCommitOnReturn()Deprecated.StringgetEvictionPolicyClassName()Gets the EvictionPolicy implementation in use with this connection pool.booleangetFastFailValidation()True means that validation will fail immediately for connections that have previously thrown SQLExceptions with SQL_STATE indicating fatal disconnection errors.intgetInitialSize()Returns the initial size of the connection pool.StringgetJmxName()Returns the JMX name that has been requested for this DataSource.booleangetLifo()Returns the LIFO property.booleangetLogAbandoned()Flag to log stack traces for application code which abandoned a Statement or Connection.booleangetLogExpiredConnections()WhengetMaxConnLifetimeMillis()is set to limit connection lifetime, this property determines whether or not log messages are generated when the pool closes connections due to maximum lifetime exceeded.intgetLoginTimeout()BasicDataSource does NOT support this method.PrintWritergetLogWriter()Returns the log writer being used by this data source.longgetMaxConnLifetimeMillis()Returns the maximum permitted lifetime of a connection in milliseconds.intgetMaxIdle()Returns the maximum number of connections that can remain idle in the pool.intgetMaxOpenPreparedStatements()Gets the value of themaxOpenPreparedStatementsproperty.intgetMaxTotal()Returns the maximum number of active connections that can be allocated at the same time.longgetMaxWaitMillis()Returns the maximum number of milliseconds that the pool will wait for a connection to be returned before throwing an exception.longgetMinEvictableIdleTimeMillis()Returns theminEvictableIdleTimeMillisproperty.intgetMinIdle()Returns the minimum number of idle connections in the pool.intgetNumActive()[Read Only] The current number of active connections that have been allocated from this data source.intgetNumIdle()[Read Only] The current number of idle connections that are waiting to be allocated from this data source.intgetNumTestsPerEvictionRun()Returns the value of thenumTestsPerEvictionRunproperty.LoggergetParentLogger()StringgetPassword()Returns the password passed to the JDBC driver to establish connections.protected ObjectNamegetRegisteredJmxName()booleangetRemoveAbandonedOnBorrow()Flag to remove abandoned connections if they exceed the removeAbandonedTimeout when borrowObject is invoked.booleangetRemoveAbandonedOnMaintenance()Flag to remove abandoned connections if they exceed the removeAbandonedTimeout during pool maintenance.intgetRemoveAbandonedTimeout()Timeout in seconds before an abandoned connection can be removed.booleangetRollbackOnReturn()Gets the current value of the flag that controls whether a connection will be rolled back when it is returned to the pool if auto commit is not enabled and the connection is not read only.longgetSoftMinEvictableIdleTimeMillis()Returns the minimum amount of time a connection may sit idle in the pool before it is eligible for eviction by the idle object evictor, with the extra condition that at least "minIdle" connections remain in the pool.booleangetTestOnBorrow()Returns thetestOnBorrowproperty.booleangetTestOnCreate()Returns thetestOnCreateproperty.booleangetTestOnReturn()Returns the value of thetestOnReturnproperty.booleangetTestWhileIdle()Returns the value of thetestWhileIdleproperty.longgetTimeBetweenEvictionRunsMillis()Returns the value of thetimeBetweenEvictionRunsMillisproperty.StringgetUrl()Returns the JDBC connectionurlproperty.StringgetUsername()Returns the JDBC connectionuserNameproperty.StringgetValidationQuery()Returns the validation query used to validate connections before returning them.intgetValidationQueryTimeout()Returns the validation query timeout.voidinvalidateConnection(Connection connection)Manually invalidates a connection, effectively requesting the pool to try to close it, remove it from the pool and reclaim pool capacity.booleanisAccessToUnderlyingConnectionAllowed()Returns the value of the accessToUnderlyingConnectionAllowed property.booleanisClearStatementPoolOnReturn()Returns true if the statement pool is cleared when the connection is returned to its pool.booleanisClosed()If true, this data source is closed and no more connections can be retrieved from this data source.booleanisPoolPreparedStatements()Returns true if we are pooling statements.booleanisWrapperFor(Class<?> iface)protected voidlog(String message)protected voidlog(String message, Throwable throwable)Logs the given throwable.voidpostDeregister()voidpostRegister(Boolean registrationDone)voidpreDeregister()ObjectNamepreRegister(MBeanServer server, ObjectName objectName)voidremoveConnectionProperty(String name)Removes a custom connection property.voidrestart()Restarts the datasource.voidsetAbandonedLogWriter(PrintWriter logWriter)Sets the print writer to be used by this configuration to log information on abandoned objects.voidsetAbandonedUsageTracking(boolean usageTracking)If the connection pool implementsUsageTracking, configure whether the connection pool should record a stack trace every time a method is called on a pooled connection and retain the most recent stack trace to aid debugging of abandoned connections.voidsetAccessToUnderlyingConnectionAllowed(boolean allow)Sets the value of the accessToUnderlyingConnectionAllowed property.voidsetAutoCommitOnReturn(boolean autoCommitOnReturn)Sets the value of the flag that controls whether or not connections being returned to the pool will be checked and configured withConnection.setAutoCommit(true)if the auto commit setting isfalsewhen the connection is returned.voidsetCacheState(boolean cacheState)Sets the state caching flag.voidsetClearStatementPoolOnReturn(boolean clearStatementPoolOnReturn)Sets whether the pool of statements (which was enabled withsetPoolPreparedStatements(boolean)) should be cleared when the connection is returned to its pool.voidsetConnectionFactoryClassName(String connectionFactoryClassName)Sets the ConnectionFactory class name.voidsetConnectionInitSqls(Collection<String> connectionInitSqls)Sets the list of SQL statements to be executed when a physical connection is first created.voidsetConnectionProperties(String connectionProperties)Sets the connection properties passed to driver.connect(...).voidsetDefaultAutoCommit(Boolean defaultAutoCommit)Sets default auto-commit state of connections returned by this datasource.voidsetDefaultCatalog(String defaultCatalog)Sets the default catalog.voidsetDefaultQueryTimeout(Integer defaultQueryTimeoutSeconds)Sets the default query timeout that will be used forStatements created from this connection.voidsetDefaultReadOnly(Boolean defaultReadOnly)Sets defaultReadonly property.voidsetDefaultSchema(String defaultSchema)Sets the default schema.voidsetDefaultTransactionIsolation(int defaultTransactionIsolation)Sets the default transaction isolation state for returned connections.voidsetDisconnectionSqlCodes(Collection<String> disconnectionSqlCodes)Sets the SQL_STATE codes considered to signal fatal conditions.voidsetDriver(Driver driver)Sets the JDBC Driver instance to use for this pool.voidsetDriverClassLoader(ClassLoader driverClassLoader)Sets the class loader to be used to load the JDBC driver.voidsetDriverClassName(String driverClassName)Sets the JDBC driver class name.voidsetEnableAutoCommitOnReturn(boolean autoCommitOnReturn)Deprecated.voidsetEvictionPolicyClassName(String evictionPolicyClassName)Sets the EvictionPolicy implementation to use with this connection pool.voidsetFastFailValidation(boolean fastFailValidation)voidsetInitialSize(int initialSize)Sets the initial size of the connection pool.voidsetJmxName(String jmxName)Sets the JMX name that has been requested for this DataSource.voidsetLifo(boolean lifo)Sets the LIFO property.voidsetLogAbandoned(boolean logAbandoned)voidsetLogExpiredConnections(boolean logExpiredConnections)WhengetMaxConnLifetimeMillis()is set to limit connection lifetime, this property determines whether or not log messages are generated when the pool closes connections due to maximum lifetime exceeded.voidsetLoginTimeout(int loginTimeout)BasicDataSource does NOT support this method.voidsetLogWriter(PrintWriter logWriter)Sets the log writer being used by this data source.voidsetMaxConnLifetimeMillis(long maxConnLifetimeMillis)Sets the maximum permitted lifetime of a connection in milliseconds.voidsetMaxIdle(int maxIdle)Sets the maximum number of connections that can remain idle in the pool.voidsetMaxOpenPreparedStatements(int maxOpenStatements)Sets the value of themaxOpenPreparedStatementsproperty.voidsetMaxTotal(int maxTotal)Sets the maximum total number of idle and borrows connections that can be active at the same time.voidsetMaxWaitMillis(long maxWaitMillis)Sets the MaxWaitMillis property.voidsetMinEvictableIdleTimeMillis(long minEvictableIdleTimeMillis)Sets theminEvictableIdleTimeMillisproperty.voidsetMinIdle(int minIdle)Sets the minimum number of idle connections in the pool.voidsetNumTestsPerEvictionRun(int numTestsPerEvictionRun)Sets the value of thenumTestsPerEvictionRunproperty.voidsetPassword(String password)Sets thepassword.voidsetPoolPreparedStatements(boolean poolingStatements)Sets whether to pool statements or not.voidsetRemoveAbandonedOnBorrow(boolean removeAbandonedOnBorrow)voidsetRemoveAbandonedOnMaintenance(boolean removeAbandonedOnMaintenance)voidsetRemoveAbandonedTimeout(int removeAbandonedTimeout)Sets the timeout in seconds before an abandoned connection can be removed.voidsetRollbackOnReturn(boolean rollbackOnReturn)Sets the flag that controls if a connection will be rolled back when it is returned to the pool if auto commit is not enabled and the connection is not read only.voidsetSoftMinEvictableIdleTimeMillis(long softMinEvictableIdleTimeMillis)Sets the minimum amount of time a connection may sit idle in the pool before it is eligible for eviction by the idle object evictor, with the extra condition that at least "minIdle" connections remain in the pool.voidsetTestOnBorrow(boolean testOnBorrow)Sets thetestOnBorrowproperty.voidsetTestOnCreate(boolean testOnCreate)Sets thetestOnCreateproperty.voidsetTestOnReturn(boolean testOnReturn)Sets thetestOnReturnproperty.voidsetTestWhileIdle(boolean testWhileIdle)Sets thetestWhileIdleproperty.voidsetTimeBetweenEvictionRunsMillis(long timeBetweenEvictionRunsMillis)Sets thetimeBetweenEvictionRunsMillisproperty.voidsetUrl(String url)Sets theurl.voidsetUsername(String userName)Sets theuserName.voidsetValidationQuery(String validationQuery)Sets thevalidationQuery.voidsetValidationQueryTimeout(int validationQueryTimeoutSeconds)Sets the validation query timeout, the amount of time, in seconds, that connection validation will wait for a response from the database when executing a validation query.voidstart()Starts the datasource.protected voidstartPoolMaintenance()Starts the connection pool maintenance task, if configured.<T> Tunwrap(Class<T> iface)protected static voidvalidateConnectionFactory(PoolableConnectionFactory connectionFactory)-
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
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Methods inherited from interface javax.sql.CommonDataSource
createShardingKeyBuilder
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Methods inherited from interface javax.sql.DataSource
createConnectionBuilder
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Method Detail
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validateConnectionFactory
protected static void validateConnectionFactory(PoolableConnectionFactory connectionFactory) throws Exception
- Throws:
Exception
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addConnectionProperty
public void addConnectionProperty(String name, String value)
Adds a custom connection property to the set that will be passed to our JDBC driver. This MUST be called before the first connection is retrieved (along with all the other configuration property setters). Calls to this method after the connection pool has been initialized have no effect.- Parameters:
name- Name of the custom connection propertyvalue- Value of the custom connection property
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close
public void close() throws SQLExceptionCloses and releases all idle connections that are currently stored in the connection pool associated with this data source.
Connections that are checked out to clients when this method is invoked are not affected. When client applications subsequently invoke
Connection.close()to return these connections to the pool, the underlying JDBC connections are closed.Attempts to acquire connections using
getConnection()after this method has been invoked result in SQLExceptions. To reopen a datasource that has been closed using this method, usestart().This method is idempotent - i.e., closing an already closed BasicDataSource has no effect and does not generate exceptions.
- Specified by:
closein interfaceAutoCloseable- Throws:
SQLException- if an error occurs closing idle connections
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createConnectionFactory
protected ConnectionFactory createConnectionFactory() throws SQLException
Creates a JDBC connection factory for this data source. The JDBC driver is loaded using the following algorithm:- If a Driver instance has been specified via
setDriver(Driver)use it - If no Driver instance was specified and
driverClassNameis specified that class is loaded using theClassLoaderof this class or, ifdriverClassLoaderis set,driverClassNameis loaded with the specifiedClassLoader. - If
driverClassNameis specified and the previous attempt fails, the class is loaded using the context class loader of the current thread. - If a driver still isn't loaded one is loaded via the
DriverManagerusing the specifiedurl.
This method exists so subclasses can replace the implementation class.
- Returns:
- A new connection factory.
- Throws:
SQLException- If the connection factory cannot be created
- If a Driver instance has been specified via
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createConnectionPool
protected void createConnectionPool(PoolableConnectionFactory factory)
Creates a connection pool for this datasource. This method only exists so subclasses can replace the implementation class.This implementation configures all pool properties other than timeBetweenEvictionRunsMillis. Setting that property is deferred to
startPoolMaintenance(), since setting timeBetweenEvictionRunsMillis to a positive value causesGenericObjectPool's eviction timer to be started.- Parameters:
factory- The factory to use to create new connections for this pool.
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createDataSource
protected DataSource createDataSource() throws SQLException
Creates (if necessary) and return the internal data source we are using to manage our connections.
- Returns:
- The current internal DataSource or a newly created instance if it has not yet been created.
- Throws:
SQLException- if the object pool cannot be created.
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createDataSourceInstance
protected DataSource createDataSourceInstance() throws SQLException
Creates the actual data source instance. This method only exists so that subclasses can replace the implementation class.- Returns:
- A new DataSource instance
- Throws:
SQLException- if unable to create a datasource instance
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createObjectPool
protected GenericObjectPool<PoolableConnection> createObjectPool(PoolableConnectionFactory factory, GenericObjectPoolConfig<PoolableConnection> poolConfig, AbandonedConfig abandonedConfig)
Creates an object pool used to provide pooling support forJDBC connections.- Parameters:
factory- the object factorypoolConfig- the object pool configurationabandonedConfig- the abandoned objects configuration- Returns:
- a non-null instance
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createPoolableConnectionFactory
protected PoolableConnectionFactory createPoolableConnectionFactory(ConnectionFactory driverConnectionFactory) throws SQLException
Creates the PoolableConnectionFactory and attaches it to the connection pool. This method only exists so subclasses can replace the default implementation.- Parameters:
driverConnectionFactory- JDBC connection factory- Returns:
- A new PoolableConnectionFactory configured with the current configuration of this BasicDataSource
- Throws:
SQLException- if an error occurs creating the PoolableConnectionFactory
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evict
public void evict() throws ExceptionManually evicts idle connections- Throws:
Exception- when there is a problem evicting idle objects.
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getAbandonedLogWriter
public PrintWriter getAbandonedLogWriter()
Gets the print writer used by this configuration to log information on abandoned objects.- Returns:
- The print writer used by this configuration to log information on abandoned objects.
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getAbandonedUsageTracking
public boolean getAbandonedUsageTracking()
If the connection pool implementsUsageTracking, should the connection pool record a stack trace every time a method is called on a pooled connection and retain the most recent stack trace to aid debugging of abandoned connections?- Specified by:
getAbandonedUsageTrackingin interfaceDataSourceMXBean- Returns:
trueif usage tracking is enabled
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getAutoCommitOnReturn
public boolean getAutoCommitOnReturn()
Returns the value of the flag that controls whether or not connections being returned to the pool will be checked and configured withConnection.setAutoCommit(true)if the auto commit setting isfalsewhen the connection is returned. It istrueby default.- Returns:
- Whether or not connections being returned to the pool will be checked and configured with auto-commit.
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getCacheState
public boolean getCacheState()
Returns the state caching flag.- Specified by:
getCacheStatein interfaceDataSourceMXBean- Returns:
- the state caching flag
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getConnection
public Connection getConnection() throws SQLException
Creates (if necessary) and return a connection to the database.- Specified by:
getConnectionin interfaceDataSource- Returns:
- a database connection
- Throws:
SQLException- if a database access error occurs
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getConnection
public Connection getConnection(String user, String pass) throws SQLException
BasicDataSource does NOT support this method.- Specified by:
getConnectionin interfaceDataSource- Parameters:
user- Database user on whose behalf the Connection is being madepass- The database user's password- Returns:
- nothing - always throws UnsupportedOperationException
- Throws:
UnsupportedOperationException- always thrown.SQLException- if a database access error occurs
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getConnectionFactoryClassName
public String getConnectionFactoryClassName()
Returns the ConnectionFactoryClassName that has been configured for use by this pool.Note: This getter only returns the last value set by a call to
setConnectionFactoryClassName(String).- Returns:
- the ConnectionFactoryClassName that has been configured for use by this pool.
- Since:
- 2.7.0
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getConnectionInitSqls
public List<String> getConnectionInitSqls()
Returns the list of SQL statements executed when a physical connection is first created. Returns an empty list if there are no initialization statements configured.- Returns:
- initialization SQL statements
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getConnectionInitSqlsAsArray
public String[] getConnectionInitSqlsAsArray()
Provides the same data asgetConnectionInitSqls()but in an array so it is accessible via JMX.- Specified by:
getConnectionInitSqlsAsArrayin interfaceDataSourceMXBean- Returns:
getConnectionInitSqlsAsArray().
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getConnectionPool
protected GenericObjectPool<PoolableConnection> getConnectionPool()
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getDefaultAutoCommit
public Boolean getDefaultAutoCommit()
Returns the default auto-commit property.- Specified by:
getDefaultAutoCommitin interfaceDataSourceMXBean- Returns:
- true if default auto-commit is enabled
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getDefaultCatalog
public String getDefaultCatalog()
Returns the default catalog.- Specified by:
getDefaultCatalogin interfaceDataSourceMXBean- Returns:
- the default catalog
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getDefaultQueryTimeout
public Integer getDefaultQueryTimeout()
Gets the default query timeout that will be used forStatements created from this connection.nullmeans that the driver default will be used.- Returns:
- The default query timeout in seconds.
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getDefaultReadOnly
public Boolean getDefaultReadOnly()
Returns the default readOnly property.- Specified by:
getDefaultReadOnlyin interfaceDataSourceMXBean- Returns:
- true if connections are readOnly by default
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getDefaultSchema
public String getDefaultSchema()
Returns the default schema.- Specified by:
getDefaultSchemain interfaceDataSourceMXBean- Returns:
- the default schema.
- Since:
- 2.5.0
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getDefaultTransactionIsolation
public int getDefaultTransactionIsolation()
Returns the default transaction isolation state of returned connections.- Specified by:
getDefaultTransactionIsolationin interfaceDataSourceMXBean- Returns:
- the default value for transaction isolation state
- See Also:
Connection.getTransactionIsolation()
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getDisconnectionSqlCodes
public Set<String> getDisconnectionSqlCodes()
Returns the set of SQL_STATE codes considered to signal fatal conditions.- Returns:
- fatal disconnection state codes
- Since:
- 2.1
- See Also:
setDisconnectionSqlCodes(Collection)
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getDisconnectionSqlCodesAsArray
public String[] getDisconnectionSqlCodesAsArray()
Provides the same data asgetDisconnectionSqlCodes()but in an array so it is accessible via JMX.- Specified by:
getDisconnectionSqlCodesAsArrayin interfaceDataSourceMXBean- Returns:
getDisconnectionSqlCodesAsArray().- Since:
- 2.1
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getDriver
public Driver getDriver()
Returns the JDBC Driver that has been configured for use by this pool.Note: This getter only returns the last value set by a call to
setDriver(Driver). It does not return any driver instance that may have been created from the value set viasetDriverClassName(String).- Returns:
- the JDBC Driver that has been configured for use by this pool
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getDriverClassLoader
public ClassLoader getDriverClassLoader()
Returns the class loader specified for loading the JDBC driver. Returnsnullif no class loader has been explicitly specified.Note: This getter only returns the last value set by a call to
setDriverClassLoader(ClassLoader). It does not return the class loader of any driver that may have been set viasetDriver(Driver).- Returns:
- The class loader specified for loading the JDBC driver.
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getDriverClassName
public String getDriverClassName()
Returns the JDBC driver class name.Note: This getter only returns the last value set by a call to
setDriverClassName(String). It does not return the class name of any driver that may have been set viasetDriver(Driver).- Specified by:
getDriverClassNamein interfaceDataSourceMXBean- Returns:
- the JDBC driver class name
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getEnableAutoCommitOnReturn
@Deprecated public boolean getEnableAutoCommitOnReturn()
Deprecated.Returns the value of the flag that controls whether or not connections being returned to the pool will be checked and configured withConnection.setAutoCommit(true)if the auto commit setting isfalsewhen the connection is returned. It istrueby default.- Returns:
- Whether or not connections being returned to the pool will be checked and configured with auto-commit.
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getEvictionPolicyClassName
public String getEvictionPolicyClassName()
Gets the EvictionPolicy implementation in use with this connection pool.- Returns:
- The EvictionPolicy implementation in use with this connection pool.
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getFastFailValidation
public boolean getFastFailValidation()
True means that validation will fail immediately for connections that have previously thrown SQLExceptions with SQL_STATE indicating fatal disconnection errors.- Specified by:
getFastFailValidationin interfaceDataSourceMXBean- Returns:
- true if connections created by this datasource will fast fail validation.
- Since:
- 2.1
- See Also:
setDisconnectionSqlCodes(Collection)
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getInitialSize
public int getInitialSize()
Returns the initial size of the connection pool.- Specified by:
getInitialSizein interfaceDataSourceMXBean- Returns:
- the number of connections created when the pool is initialized
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getJmxName
public String getJmxName()
Returns the JMX name that has been requested for this DataSource. If the requested name is not valid, an alternative may be chosen.- Returns:
- The JMX name that has been requested for this DataSource.
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getLifo
public boolean getLifo()
Returns the LIFO property.- Specified by:
getLifoin interfaceDataSourceMXBean- Returns:
- true if connection pool behaves as a LIFO queue.
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getLogAbandoned
public boolean getLogAbandoned()
Flag to log stack traces for application code which abandoned a Statement or Connection.
Defaults to false.
Logging of abandoned Statements and Connections adds overhead for every Connection open or new Statement because a stack trace has to be generated.
- Specified by:
getLogAbandonedin interfaceDataSourceMXBean- Returns:
getLogAbandoned().
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getLogExpiredConnections
public boolean getLogExpiredConnections()
WhengetMaxConnLifetimeMillis()is set to limit connection lifetime, this property determines whether or not log messages are generated when the pool closes connections due to maximum lifetime exceeded.- Specified by:
getLogExpiredConnectionsin interfaceDataSourceMXBean- Returns:
getLogExpiredConnections().- Since:
- 2.1
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getLoginTimeout
public int getLoginTimeout() throws SQLExceptionBasicDataSource does NOT support this method.Returns the login timeout (in seconds) for connecting to the database.
Calls
createDataSource(), so has the side effect of initializing the connection pool.- Specified by:
getLoginTimeoutin interfaceCommonDataSource- Specified by:
getLoginTimeoutin interfaceDataSource- Returns:
- login timeout in seconds
- Throws:
SQLException- if a database access error occursUnsupportedOperationException- If the DataSource implementation does not support the login timeout feature.
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getLogWriter
public PrintWriter getLogWriter() throws SQLException
Returns the log writer being used by this data source.
Calls
createDataSource(), so has the side effect of initializing the connection pool.- Specified by:
getLogWriterin interfaceCommonDataSource- Specified by:
getLogWriterin interfaceDataSource- Returns:
- log writer in use
- Throws:
SQLException- if a database access error occurs
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getMaxConnLifetimeMillis
public long getMaxConnLifetimeMillis()
Returns the maximum permitted lifetime of a connection in milliseconds. A value of zero or less indicates an infinite lifetime.- Specified by:
getMaxConnLifetimeMillisin interfaceDataSourceMXBean- Returns:
getMaxConnLifetimeMillis().
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getMaxIdle
public int getMaxIdle()
Returns the maximum number of connections that can remain idle in the pool. Excess idle connections are destroyed on return to the pool.
A negative value indicates that there is no limit
- Specified by:
getMaxIdlein interfaceDataSourceMXBean- Returns:
- the maximum number of idle connections
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getMaxOpenPreparedStatements
public int getMaxOpenPreparedStatements()
Gets the value of themaxOpenPreparedStatementsproperty.- Specified by:
getMaxOpenPreparedStatementsin interfaceDataSourceMXBean- Returns:
- the maximum number of open statements
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getMaxTotal
public int getMaxTotal()
Returns the maximum number of active connections that can be allocated at the same time.
A negative number means that there is no limit.
- Specified by:
getMaxTotalin interfaceDataSourceMXBean- Returns:
- the maximum number of active connections
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getMaxWaitMillis
public long getMaxWaitMillis()
Returns the maximum number of milliseconds that the pool will wait for a connection to be returned before throwing an exception. A value less than or equal to zero means the pool is set to wait indefinitely.- Specified by:
getMaxWaitMillisin interfaceDataSourceMXBean- Returns:
- the maxWaitMillis property value
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getMinEvictableIdleTimeMillis
public long getMinEvictableIdleTimeMillis()
Returns theminEvictableIdleTimeMillisproperty.- Specified by:
getMinEvictableIdleTimeMillisin interfaceDataSourceMXBean- Returns:
- the value of the
minEvictableIdleTimeMillisproperty - See Also:
minEvictableIdleTimeMillis
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getMinIdle
public int getMinIdle()
Returns the minimum number of idle connections in the pool. The pool attempts to ensure that minIdle connections are available when the idle object evictor runs. The value of this property has no effect unlesstimeBetweenEvictionRunsMillishas a positive value.- Specified by:
getMinIdlein interfaceDataSourceMXBean- Returns:
- the minimum number of idle connections
- See Also:
GenericObjectPool.getMinIdle()
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getNumActive
public int getNumActive()
[Read Only] The current number of active connections that have been allocated from this data source.- Specified by:
getNumActivein interfaceDataSourceMXBean- Returns:
- the current number of active connections
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getNumIdle
public int getNumIdle()
[Read Only] The current number of idle connections that are waiting to be allocated from this data source.- Specified by:
getNumIdlein interfaceDataSourceMXBean- Returns:
- the current number of idle connections
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getNumTestsPerEvictionRun
public int getNumTestsPerEvictionRun()
Returns the value of thenumTestsPerEvictionRunproperty.- Specified by:
getNumTestsPerEvictionRunin interfaceDataSourceMXBean- Returns:
- the number of objects to examine during idle object evictor runs
- See Also:
numTestsPerEvictionRun
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getParentLogger
public Logger getParentLogger() throws SQLFeatureNotSupportedException
- Specified by:
getParentLoggerin interfaceCommonDataSource- Throws:
SQLFeatureNotSupportedException
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getPassword
public String getPassword()
Returns the password passed to the JDBC driver to establish connections.- Specified by:
getPasswordin interfaceBasicDataSourceMXBean- Returns:
- the connection password
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getRegisteredJmxName
protected ObjectName getRegisteredJmxName()
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getRemoveAbandonedOnBorrow
public boolean getRemoveAbandonedOnBorrow()
Flag to remove abandoned connections if they exceed the removeAbandonedTimeout when borrowObject is invoked.
The default value is false.
If set to true a connection is considered abandoned and eligible for removal if it has not been used for more than
removeAbandonedTimeoutseconds.Abandoned connections are identified and removed when
getConnection()is invoked and all of the following conditions hold:- Specified by:
getRemoveAbandonedOnBorrowin interfaceDataSourceMXBean- Returns:
getRemoveAbandonedOnBorrow().- See Also:
getRemoveAbandonedTimeout()
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getRemoveAbandonedOnMaintenance
public boolean getRemoveAbandonedOnMaintenance()
Flag to remove abandoned connections if they exceed the removeAbandonedTimeout during pool maintenance.
The default value is false.
If set to true a connection is considered abandoned and eligible for removal if it has not been used for more than
removeAbandonedTimeoutseconds.- Specified by:
getRemoveAbandonedOnMaintenancein interfaceDataSourceMXBean- Returns:
getRemoveAbandonedOnMaintenance().- See Also:
getRemoveAbandonedTimeout()
-
getRemoveAbandonedTimeout
public int getRemoveAbandonedTimeout()
Timeout in seconds before an abandoned connection can be removed.
Creating a Statement, PreparedStatement or CallableStatement or using one of these to execute a query (using one of the execute methods) resets the lastUsed property of the parent connection.
Abandoned connection cleanup happens when:
getRemoveAbandonedOnBorrow()orgetRemoveAbandonedOnMaintenance()= truenumIdle< 2numActive>maxTotal- 3
The default value is 300 seconds.
- Specified by:
getRemoveAbandonedTimeoutin interfaceDataSourceMXBean- Returns:
getRemoveAbandonedTimeout().
-
getRollbackOnReturn
public boolean getRollbackOnReturn()
Gets the current value of the flag that controls whether a connection will be rolled back when it is returned to the pool if auto commit is not enabled and the connection is not read only.- Returns:
- whether a connection will be rolled back when it is returned to the pool.
-
getSoftMinEvictableIdleTimeMillis
public long getSoftMinEvictableIdleTimeMillis()
Returns the minimum amount of time a connection may sit idle in the pool before it is eligible for eviction by the idle object evictor, with the extra condition that at least "minIdle" connections remain in the pool.
When
minEvictableIdleTimeMillisis set to a positive value, minEvictableIdleTimeMillis is examined first by the idle connection evictor - i.e. when idle connections are visited by the evictor, idle time is first compared againstminEvictableIdleTimeMillis(without considering the number of idle connections in the pool) and then againstsoftMinEvictableIdleTimeMillis, including theminIdle, constraint.- Specified by:
getSoftMinEvictableIdleTimeMillisin interfaceDataSourceMXBean- Returns:
- minimum amount of time a connection may sit idle in the pool before it is eligible for eviction, assuming there are minIdle idle connections in the pool
-
getTestOnBorrow
public boolean getTestOnBorrow()
Returns thetestOnBorrowproperty.- Specified by:
getTestOnBorrowin interfaceDataSourceMXBean- Returns:
- true if objects are validated before being borrowed from the pool
- See Also:
testOnBorrow
-
getTestOnCreate
public boolean getTestOnCreate()
Returns thetestOnCreateproperty.- Specified by:
getTestOnCreatein interfaceDataSourceMXBean- Returns:
- true if objects are validated immediately after they are created by the pool
- See Also:
testOnCreate
-
getTestOnReturn
public boolean getTestOnReturn()
Returns the value of thetestOnReturnproperty.- Returns:
- true if objects are validated before being returned to the pool
- See Also:
testOnReturn
-
getTestWhileIdle
public boolean getTestWhileIdle()
Returns the value of thetestWhileIdleproperty.- Specified by:
getTestWhileIdlein interfaceDataSourceMXBean- Returns:
- true if objects examined by the idle object evictor are validated
- See Also:
testWhileIdle
-
getTimeBetweenEvictionRunsMillis
public long getTimeBetweenEvictionRunsMillis()
Returns the value of thetimeBetweenEvictionRunsMillisproperty.- Specified by:
getTimeBetweenEvictionRunsMillisin interfaceDataSourceMXBean- Returns:
- the time (in milliseconds) between evictor runs
- See Also:
timeBetweenEvictionRunsMillis
-
getUrl
public String getUrl()
Returns the JDBC connectionurlproperty.- Specified by:
getUrlin interfaceDataSourceMXBean- Returns:
- the
urlpassed to the JDBC driver to establish connections
-
getUsername
public String getUsername()
Returns the JDBC connectionuserNameproperty.- Specified by:
getUsernamein interfaceDataSourceMXBean- Returns:
- the
userNamepassed to the JDBC driver to establish connections
-
getValidationQuery
public String getValidationQuery()
Returns the validation query used to validate connections before returning them.- Specified by:
getValidationQueryin interfaceDataSourceMXBean- Returns:
- the SQL validation query
- See Also:
validationQuery
-
getValidationQueryTimeout
public int getValidationQueryTimeout()
Returns the validation query timeout.- Specified by:
getValidationQueryTimeoutin interfaceDataSourceMXBean- Returns:
- the timeout in seconds before connection validation queries fail.
-
invalidateConnection
public void invalidateConnection(Connection connection) throws IllegalStateException
Manually invalidates a connection, effectively requesting the pool to try to close it, remove it from the pool and reclaim pool capacity.- Parameters:
connection- The Connection to invalidate.- Throws:
IllegalStateException- if invalidating the connection failed.- Since:
- 2.1
-
isAccessToUnderlyingConnectionAllowed
public boolean isAccessToUnderlyingConnectionAllowed()
Returns the value of the accessToUnderlyingConnectionAllowed property.- Specified by:
isAccessToUnderlyingConnectionAllowedin interfaceDataSourceMXBean- Returns:
- true if access to the underlying connection is allowed, false otherwise.
-
isClearStatementPoolOnReturn
public boolean isClearStatementPoolOnReturn()
Returns true if the statement pool is cleared when the connection is returned to its pool.- Specified by:
isClearStatementPoolOnReturnin interfaceDataSourceMXBean- Returns:
- true if the statement pool is cleared at connection return
- Since:
- 2.8.0
-
isClosed
public boolean isClosed()
If true, this data source is closed and no more connections can be retrieved from this data source.- Specified by:
isClosedin interfaceDataSourceMXBean- Returns:
- true, if the data source is closed; false otherwise
-
isPoolPreparedStatements
public boolean isPoolPreparedStatements()
Returns true if we are pooling statements.- Specified by:
isPoolPreparedStatementsin interfaceDataSourceMXBean- Returns:
- true if prepared and callable statements are pooled
-
isWrapperFor
public boolean isWrapperFor(Class<?> iface) throws SQLException
- Specified by:
isWrapperForin interfaceWrapper- Throws:
SQLException
-
log
protected void log(String message)
-
log
protected void log(String message, Throwable throwable)
Logs the given throwable.- Parameters:
message- TODOthrowable- the throwable.- Since:
- 2.7.0
-
postDeregister
public void postDeregister()
- Specified by:
postDeregisterin interfaceMBeanRegistration
-
postRegister
public void postRegister(Boolean registrationDone)
- Specified by:
postRegisterin interfaceMBeanRegistration
-
preDeregister
public void preDeregister() throws Exception- Specified by:
preDeregisterin interfaceMBeanRegistration- Throws:
Exception
-
preRegister
public ObjectName preRegister(MBeanServer server, ObjectName objectName)
- Specified by:
preRegisterin interfaceMBeanRegistration
-
removeConnectionProperty
public void removeConnectionProperty(String name)
Removes a custom connection property.- Parameters:
name- Name of the custom connection property to remove- See Also:
addConnectionProperty(String, String)
-
restart
public void restart() throws SQLExceptionRestarts the datasource.This method calls
close()andstart()in sequence within synchronized scope so any connection requests that come in while the datasource is shutting down will be served by the new pool.Idle connections that are stored in the connection pool when this method is invoked are closed, but connections that are checked out to clients when this method is invoked are not affected. When client applications subsequently invoke
Connection.close()to return these connections to the pool, the underlying JDBC connections are closed. These connections do not count ingetMaxTotal()orgetNumActive()after invoking this method. For example, if there are 3 connections checked out by clients whenrestart()is invoked, after this method is called,getNumActive()will return 0 and up togetMaxTotal()+ 3 connections may be open until the connections sourced from the original pool are returned.The new connection pool created by this method is initialized with currently set configuration properties.
- Specified by:
restartin interfaceDataSourceMXBean- Throws:
SQLException- if an error occurs initializing the datasource
-
setAbandonedLogWriter
public void setAbandonedLogWriter(PrintWriter logWriter)
Sets the print writer to be used by this configuration to log information on abandoned objects.- Parameters:
logWriter- The new log writer
-
setAbandonedUsageTracking
public void setAbandonedUsageTracking(boolean usageTracking)
If the connection pool implementsUsageTracking, configure whether the connection pool should record a stack trace every time a method is called on a pooled connection and retain the most recent stack trace to aid debugging of abandoned connections.- Parameters:
usageTracking- A value oftruewill enable the recording of a stack trace on every use of a pooled connection
-
setAccessToUnderlyingConnectionAllowed
public void setAccessToUnderlyingConnectionAllowed(boolean allow)
Sets the value of the accessToUnderlyingConnectionAllowed property. It controls if the PoolGuard allows access to the underlying connection. (Default: false)
Note: this method currently has no effect once the pool has been initialized. The pool is initialized the first time one of the following methods is invoked:
getConnection, setLogwriter, setLoginTimeout, getLoginTimeout, getLogWriter.- Parameters:
allow- Access to the underlying connection is granted when true.
-
setAutoCommitOnReturn
public void setAutoCommitOnReturn(boolean autoCommitOnReturn)
Sets the value of the flag that controls whether or not connections being returned to the pool will be checked and configured withConnection.setAutoCommit(true)if the auto commit setting isfalsewhen the connection is returned. It istrueby default.- Parameters:
autoCommitOnReturn- Whether or not connections being returned to the pool will be checked and configured with auto-commit.- Since:
- 2.6.0
-
setCacheState
public void setCacheState(boolean cacheState)
Sets the state caching flag.- Parameters:
cacheState- The new value for the state caching flag
-
setClearStatementPoolOnReturn
public void setClearStatementPoolOnReturn(boolean clearStatementPoolOnReturn)
Sets whether the pool of statements (which was enabled withsetPoolPreparedStatements(boolean)) should be cleared when the connection is returned to its pool. Default is false.- Parameters:
clearStatementPoolOnReturn- clear or not- Since:
- 2.8.0
-
setConnectionFactoryClassName
public void setConnectionFactoryClassName(String connectionFactoryClassName)
Sets the ConnectionFactory class name.- Parameters:
connectionFactoryClassName- A class name.- Since:
- 2.7.0
-
setConnectionInitSqls
public void setConnectionInitSqls(Collection<String> connectionInitSqls)
Sets the list of SQL statements to be executed when a physical connection is first created.Note: this method currently has no effect once the pool has been initialized. The pool is initialized the first time one of the following methods is invoked:
getConnection, setLogwriter, setLoginTimeout, getLoginTimeout, getLogWriter.- Parameters:
connectionInitSqls- Collection of SQL statements to execute on connection creation
-
setConnectionProperties
public void setConnectionProperties(String connectionProperties)
Sets the connection properties passed to driver.connect(...).Format of the string must be [propertyName=property;]*
NOTE - The "user" and "password" properties will be added explicitly, so they do not need to be included here.
- Parameters:
connectionProperties- the connection properties used to create new connections
-
setDefaultAutoCommit
public void setDefaultAutoCommit(Boolean defaultAutoCommit)
Sets default auto-commit state of connections returned by this datasource.
Note: this method currently has no effect once the pool has been initialized. The pool is initialized the first time one of the following methods is invoked:
getConnection, setLogwriter, setLoginTimeout, getLoginTimeout, getLogWriter.- Parameters:
defaultAutoCommit- default auto-commit value
-
setDefaultCatalog
public void setDefaultCatalog(String defaultCatalog)
Sets the default catalog.
Note: this method currently has no effect once the pool has been initialized. The pool is initialized the first time one of the following methods is invoked:
getConnection, setLogwriter, setLoginTimeout, getLoginTimeout, getLogWriter.- Parameters:
defaultCatalog- the default catalog
-
setDefaultQueryTimeout
public void setDefaultQueryTimeout(Integer defaultQueryTimeoutSeconds)
Sets the default query timeout that will be used forStatements created from this connection.nullmeans that the driver default will be used.- Parameters:
defaultQueryTimeoutSeconds- The default query timeout in seconds.
-
setDefaultReadOnly
public void setDefaultReadOnly(Boolean defaultReadOnly)
Sets defaultReadonly property.
Note: this method currently has no effect once the pool has been initialized. The pool is initialized the first time one of the following methods is invoked:
getConnection, setLogwriter, setLoginTimeout, getLoginTimeout, getLogWriter.- Parameters:
defaultReadOnly- default read-only value
-
setDefaultSchema
public void setDefaultSchema(String defaultSchema)
Sets the default schema.
Note: this method currently has no effect once the pool has been initialized. The pool is initialized the first time one of the following methods is invoked:
getConnection, setLogwriter, setLoginTimeout, getLoginTimeout, getLogWriter.- Parameters:
defaultSchema- the default catalog- Since:
- 2.5.0
-
setDefaultTransactionIsolation
public void setDefaultTransactionIsolation(int defaultTransactionIsolation)
Sets the default transaction isolation state for returned connections.
Note: this method currently has no effect once the pool has been initialized. The pool is initialized the first time one of the following methods is invoked:
getConnection, setLogwriter, setLoginTimeout, getLoginTimeout, getLogWriter.- Parameters:
defaultTransactionIsolation- the default transaction isolation state- See Also:
Connection.getTransactionIsolation()
-
setDisconnectionSqlCodes
public void setDisconnectionSqlCodes(Collection<String> disconnectionSqlCodes)
Sets the SQL_STATE codes considered to signal fatal conditions.Overrides the defaults in
Utils.DISCONNECTION_SQL_CODES(plus anything starting withUtils.DISCONNECTION_SQL_CODE_PREFIX). If this property is non-null andgetFastFailValidation()istrue, whenever connections created by this datasource generate exceptions with SQL_STATE codes in this list, they will be marked as "fatally disconnected" and subsequent validations will fail fast (no attempt at isValid or validation query).If
getFastFailValidation()isfalsesetting this property has no effect.Note: this method currently has no effect once the pool has been initialized. The pool is initialized the first time one of the following methods is invoked:
getConnection, setLogwriter, setLoginTimeout, getLoginTimeout, getLogWriter.- Parameters:
disconnectionSqlCodes- SQL_STATE codes considered to signal fatal conditions- Since:
- 2.1
-
setDriver
public void setDriver(Driver driver)
Sets the JDBC Driver instance to use for this pool.Note: this method currently has no effect once the pool has been initialized. The pool is initialized the first time one of the following methods is invoked:
getConnection, setLogwriter, setLoginTimeout, getLoginTimeout, getLogWriter.- Parameters:
driver- The JDBC Driver instance to use for this pool.
-
setDriverClassLoader
public void setDriverClassLoader(ClassLoader driverClassLoader)
Sets the class loader to be used to load the JDBC driver.
Note: this method currently has no effect once the pool has been initialized. The pool is initialized the first time one of the following methods is invoked:
getConnection, setLogwriter, setLoginTimeout, getLoginTimeout, getLogWriter.- Parameters:
driverClassLoader- the class loader with which to load the JDBC driver
-
setDriverClassName
public void setDriverClassName(String driverClassName)
Sets the JDBC driver class name.
Note: this method currently has no effect once the pool has been initialized. The pool is initialized the first time one of the following methods is invoked:
getConnection, setLogwriter, setLoginTimeout, getLoginTimeout, getLogWriter.- Parameters:
driverClassName- the class name of the JDBC driver
-
setEnableAutoCommitOnReturn
@Deprecated public void setEnableAutoCommitOnReturn(boolean autoCommitOnReturn)
Deprecated.Sets the value of the flag that controls whether or not connections being returned to the pool will be checked and configured withConnection.setAutoCommit(true)if the auto commit setting isfalsewhen the connection is returned. It istrueby default.- Parameters:
autoCommitOnReturn- Whether or not connections being returned to the pool will be checked and configured with auto-commit.
-
setEvictionPolicyClassName
public void setEvictionPolicyClassName(String evictionPolicyClassName)
Sets the EvictionPolicy implementation to use with this connection pool.- Parameters:
evictionPolicyClassName- The fully qualified class name of the EvictionPolicy implementation
-
setFastFailValidation
public void setFastFailValidation(boolean fastFailValidation)
- Parameters:
fastFailValidation- true means connections created by this factory will fast fail validation- Since:
- 2.1
- See Also:
getFastFailValidation()
-
setInitialSize
public void setInitialSize(int initialSize)
Sets the initial size of the connection pool.
Note: this method currently has no effect once the pool has been initialized. The pool is initialized the first time one of the following methods is invoked:
getConnection, setLogwriter, setLoginTimeout, getLoginTimeout, getLogWriter.- Parameters:
initialSize- the number of connections created when the pool is initialized
-
setJmxName
public void setJmxName(String jmxName)
Sets the JMX name that has been requested for this DataSource. If the requested name is not valid, an alternative may be chosen. This DataSource will attempt to register itself using this name. If another component registers this DataSource with JMX and this name is valid this name will be used in preference to any specified by the other component.- Parameters:
jmxName- The JMX name that has been requested for this DataSource
-
setLifo
public void setLifo(boolean lifo)
Sets the LIFO property. True means the pool behaves as a LIFO queue; false means FIFO.- Parameters:
lifo- the new value for the LIFO property
-
setLogAbandoned
public void setLogAbandoned(boolean logAbandoned)
- Parameters:
logAbandoned- new logAbandoned property value
-
setLogExpiredConnections
public void setLogExpiredConnections(boolean logExpiredConnections)
WhengetMaxConnLifetimeMillis()is set to limit connection lifetime, this property determines whether or not log messages are generated when the pool closes connections due to maximum lifetime exceeded. Set this property to false to suppress log messages when connections expire.- Parameters:
logExpiredConnections- Whether or not log messages are generated when the pool closes connections due to maximum lifetime exceeded.
-
setLoginTimeout
public void setLoginTimeout(int loginTimeout) throws SQLExceptionBasicDataSource does NOT support this method.Set the login timeout (in seconds) for connecting to the database.
Calls
createDataSource(), so has the side effect of initializing the connection pool.- Specified by:
setLoginTimeoutin interfaceCommonDataSource- Specified by:
setLoginTimeoutin interfaceDataSource- Parameters:
loginTimeout- The new login timeout, or zero for no timeout- Throws:
UnsupportedOperationException- If the DataSource implementation does not support the login timeout feature.SQLException- if a database access error occurs
-
setLogWriter
public void setLogWriter(PrintWriter logWriter) throws SQLException
Sets the log writer being used by this data source.
Calls
createDataSource(), so has the side effect of initializing the connection pool.- Specified by:
setLogWriterin interfaceCommonDataSource- Specified by:
setLogWriterin interfaceDataSource- Parameters:
logWriter- The new log writer- Throws:
SQLException- if a database access error occurs
-
setMaxConnLifetimeMillis
public void setMaxConnLifetimeMillis(long maxConnLifetimeMillis)
Sets the maximum permitted lifetime of a connection in milliseconds. A value of zero or less indicates an infinite lifetime.
Note: this method currently has no effect once the pool has been initialized. The pool is initialized the first time one of the following methods is invoked:
getConnection, setLogwriter, setLoginTimeout, getLoginTimeout, getLogWriter.- Parameters:
maxConnLifetimeMillis- The maximum permitted lifetime of a connection in milliseconds.
-
setMaxIdle
public void setMaxIdle(int maxIdle)
Sets the maximum number of connections that can remain idle in the pool. Excess idle connections are destroyed on return to the pool.- Parameters:
maxIdle- the new value for maxIdle- See Also:
getMaxIdle()
-
setMaxOpenPreparedStatements
public void setMaxOpenPreparedStatements(int maxOpenStatements)
Sets the value of the
maxOpenPreparedStatementsproperty.Note: this method currently has no effect once the pool has been initialized. The pool is initialized the first time one of the following methods is invoked:
getConnection, setLogwriter, setLoginTimeout, getLoginTimeout, getLogWriter.- Parameters:
maxOpenStatements- the new maximum number of prepared statements
-
setMaxTotal
public void setMaxTotal(int maxTotal)
Sets the maximum total number of idle and borrows connections that can be active at the same time. Use a negative value for no limit.- Parameters:
maxTotal- the new value for maxTotal- See Also:
getMaxTotal()
-
setMaxWaitMillis
public void setMaxWaitMillis(long maxWaitMillis)
Sets the MaxWaitMillis property. Use -1 to make the pool wait indefinitely.- Parameters:
maxWaitMillis- the new value for MaxWaitMillis- See Also:
getMaxWaitMillis()
-
setMinEvictableIdleTimeMillis
public void setMinEvictableIdleTimeMillis(long minEvictableIdleTimeMillis)
Sets theminEvictableIdleTimeMillisproperty.- Parameters:
minEvictableIdleTimeMillis- the minimum amount of time an object may sit idle in the pool- See Also:
minEvictableIdleTimeMillis
-
setMinIdle
public void setMinIdle(int minIdle)
Sets the minimum number of idle connections in the pool. The pool attempts to ensure that minIdle connections are available when the idle object evictor runs. The value of this property has no effect unlesstimeBetweenEvictionRunsMillishas a positive value.- Parameters:
minIdle- the new value for minIdle- See Also:
GenericObjectPool.setMinIdle(int)
-
setNumTestsPerEvictionRun
public void setNumTestsPerEvictionRun(int numTestsPerEvictionRun)
Sets the value of thenumTestsPerEvictionRunproperty.- Parameters:
numTestsPerEvictionRun- the newnumTestsPerEvictionRunvalue- See Also:
numTestsPerEvictionRun
-
setPassword
public void setPassword(String password)
Sets the
password.Note: this method currently has no effect once the pool has been initialized. The pool is initialized the first time one of the following methods is invoked:
getConnection, setLogwriter, setLoginTimeout, getLoginTimeout, getLogWriter.- Parameters:
password- new value for the password
-
setPoolPreparedStatements
public void setPoolPreparedStatements(boolean poolingStatements)
Sets whether to pool statements or not.
Note: this method currently has no effect once the pool has been initialized. The pool is initialized the first time one of the following methods is invoked:
getConnection, setLogwriter, setLoginTimeout, getLoginTimeout, getLogWriter.- Parameters:
poolingStatements- pooling on or off
-
setRemoveAbandonedOnBorrow
public void setRemoveAbandonedOnBorrow(boolean removeAbandonedOnBorrow)
- Parameters:
removeAbandonedOnBorrow- true means abandoned connections may be removed when connections are borrowed from the pool.- See Also:
getRemoveAbandonedOnBorrow()
-
setRemoveAbandonedOnMaintenance
public void setRemoveAbandonedOnMaintenance(boolean removeAbandonedOnMaintenance)
- Parameters:
removeAbandonedOnMaintenance- true means abandoned connections may be removed on pool maintenance.- See Also:
getRemoveAbandonedOnMaintenance()
-
setRemoveAbandonedTimeout
public void setRemoveAbandonedTimeout(int removeAbandonedTimeout)
Sets the timeout in seconds before an abandoned connection can be removed.
Setting this property has no effect if
getRemoveAbandonedOnBorrow()andgetRemoveAbandonedOnMaintenance()are false.- Parameters:
removeAbandonedTimeout- new abandoned timeout in seconds- See Also:
getRemoveAbandonedTimeout(),getRemoveAbandonedOnBorrow(),getRemoveAbandonedOnMaintenance()
-
setRollbackOnReturn
public void setRollbackOnReturn(boolean rollbackOnReturn)
Sets the flag that controls if a connection will be rolled back when it is returned to the pool if auto commit is not enabled and the connection is not read only.- Parameters:
rollbackOnReturn- whether a connection will be rolled back when it is returned to the pool.
-
setSoftMinEvictableIdleTimeMillis
public void setSoftMinEvictableIdleTimeMillis(long softMinEvictableIdleTimeMillis)
Sets the minimum amount of time a connection may sit idle in the pool before it is eligible for eviction by the idle object evictor, with the extra condition that at least "minIdle" connections remain in the pool.- Parameters:
softMinEvictableIdleTimeMillis- minimum amount of time a connection may sit idle in the pool before it is eligible for eviction, assuming there are minIdle idle connections in the pool.- See Also:
getSoftMinEvictableIdleTimeMillis()
-
setTestOnBorrow
public void setTestOnBorrow(boolean testOnBorrow)
Sets thetestOnBorrowproperty. This property determines whether or not the pool will validate objects before they are borrowed from the pool.- Parameters:
testOnBorrow- new value for testOnBorrow property
-
setTestOnCreate
public void setTestOnCreate(boolean testOnCreate)
Sets thetestOnCreateproperty. This property determines whether or not the pool will validate objects immediately after they are created by the pool- Parameters:
testOnCreate- new value for testOnCreate property
-
setTestOnReturn
public void setTestOnReturn(boolean testOnReturn)
Sets thetestOnReturnproperty. This property determines whether or not the pool will validate objects before they are returned to the pool.- Parameters:
testOnReturn- new value for testOnReturn property
-
setTestWhileIdle
public void setTestWhileIdle(boolean testWhileIdle)
Sets thetestWhileIdleproperty. This property determines whether or not the idle object evictor will validate connections.- Parameters:
testWhileIdle- new value for testWhileIdle property
-
setTimeBetweenEvictionRunsMillis
public void setTimeBetweenEvictionRunsMillis(long timeBetweenEvictionRunsMillis)
Sets thetimeBetweenEvictionRunsMillisproperty.- Parameters:
timeBetweenEvictionRunsMillis- the new time between evictor runs- See Also:
timeBetweenEvictionRunsMillis
-
setUrl
public void setUrl(String url)
Sets the
url.Note: this method currently has no effect once the pool has been initialized. The pool is initialized the first time one of the following methods is invoked:
getConnection, setLogwriter, setLoginTimeout, getLoginTimeout, getLogWriter.- Parameters:
url- the new value for the JDBC connection url
-
setUsername
public void setUsername(String userName)
Sets the
userName.Note: this method currently has no effect once the pool has been initialized. The pool is initialized the first time one of the following methods is invoked:
getConnection, setLogwriter, setLoginTimeout, getLoginTimeout, getLogWriter.- Parameters:
userName- the new value for the JDBC connection user name
-
setValidationQuery
public void setValidationQuery(String validationQuery)
Sets the
validationQuery.Note: this method currently has no effect once the pool has been initialized. The pool is initialized the first time one of the following methods is invoked:
getConnection, setLogwriter, setLoginTimeout, getLoginTimeout, getLogWriter.- Parameters:
validationQuery- the new value for the validation query
-
setValidationQueryTimeout
public void setValidationQueryTimeout(int validationQueryTimeoutSeconds)
Sets the validation query timeout, the amount of time, in seconds, that connection validation will wait for a response from the database when executing a validation query. Use a value less than or equal to 0 for no timeout.Note: this method currently has no effect once the pool has been initialized. The pool is initialized the first time one of the following methods is invoked:
getConnection, setLogwriter, setLoginTimeout, getLoginTimeout, getLogWriter.- Parameters:
validationQueryTimeoutSeconds- new validation query timeout value in seconds
-
start
public void start() throws SQLExceptionStarts the datasource.It is not necessary to call this method before using a newly created BasicDataSource instance, but calling it in that context causes the datasource to be immediately initialized (instead of waiting for the first
getConnection()request). Its primary use is to restart and reinitialize a datasource that has been closed.When this method is called after
close(), connections checked out by clients before the datasource was stopped do not count ingetMaxTotal()orgetNumActive(). For example, if there are 3 connections checked out by clients whenclose()is invoked and they are not returned beforestart()is invoked, after this method is called,getNumActive()will return 0. These connections will be physically closed when they are returned, but they will not count against the maximum allowed in the newly started datasource.- Specified by:
startin interfaceDataSourceMXBean- Throws:
SQLException- if an error occurs initializing the datasource
-
startPoolMaintenance
protected void startPoolMaintenance()
Starts the connection pool maintenance task, if configured.
-
unwrap
public <T> T unwrap(Class<T> iface) throws SQLException
- Specified by:
unwrapin interfaceWrapper- Throws:
SQLException
-
-