Package org.apache.catalina.util
Class Introspection
- java.lang.Object
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- org.apache.catalina.util.Introspection
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public class Introspection extends Object
Provides introspection utilities that either require knowledge of Tomcat internals or are solely used by Tomcat internals.
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Constructor Summary
Constructors Constructor Description Introspection()
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Method Summary
All Methods Static Methods Concrete Methods Modifier and Type Method Description static Class<?>convertPrimitiveType(Class<?> clazz)Converts the primitive type to its corresponding wrapper.static Field[]getDeclaredFields(Class<?> clazz)Obtain the declared fields for a class taking account of any security manager that may be configured.static Method[]getDeclaredMethods(Class<?> clazz)Obtain the declared methods for a class taking account of any security manager that may be configured.static StringgetPropertyName(Method setter)Extract the Java Bean property name from the setter name.static booleanisValidLifecycleCallback(Method method)Determines if a method is a valid lifecycle callback method.static booleanisValidSetter(Method method)Determines if a method has a valid name and signature for a Java Bean setter.static Class<?>loadClass(Context context, String className)Attempt to load a class using the given Container's class loader.
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Method Detail
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getPropertyName
public static String getPropertyName(Method setter)
Extract the Java Bean property name from the setter name. Note: This method assumes that the method name has already been checked for correctness.- Parameters:
setter- The setter method- Returns:
- the bean property name
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isValidSetter
public static boolean isValidSetter(Method method)
Determines if a method has a valid name and signature for a Java Bean setter.- Parameters:
method- The method to test- Returns:
trueif the method does have a valid name and signature, elsefalse
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isValidLifecycleCallback
public static boolean isValidLifecycleCallback(Method method)
Determines if a method is a valid lifecycle callback method.- Parameters:
method- The method to test- Returns:
trueif the method is a valid lifecycle callback method, elsefalse
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getDeclaredFields
public static Field[] getDeclaredFields(Class<?> clazz)
Obtain the declared fields for a class taking account of any security manager that may be configured.- Parameters:
clazz- The class to introspect- Returns:
- the class fields as an array
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getDeclaredMethods
public static Method[] getDeclaredMethods(Class<?> clazz)
Obtain the declared methods for a class taking account of any security manager that may be configured.- Parameters:
clazz- The class to introspect- Returns:
- the class methods as an array
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loadClass
public static Class<?> loadClass(Context context, String className)
Attempt to load a class using the given Container's class loader. If the class cannot be loaded, a debug level log message will be written to the Container's log and null will be returned.- Parameters:
context- The class loader of this context will be used to attempt to load the classclassName- The class name- Returns:
- the loaded class or
nullif loading failed
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