Class NoOpCallStack
- java.lang.Object
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- org.apache.tomcat.dbcp.pool2.impl.NoOpCallStack
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Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method Description voidclear()Clears the current stack trace snapshot.voidfillInStackTrace()Takes a snapshot of the current call stack.booleanprintStackTrace(PrintWriter writer)Prints the current stack trace if available to a PrintWriter.
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Field Detail
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INSTANCE
public static final CallStack INSTANCE
Singleton instance.
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Method Detail
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printStackTrace
public boolean printStackTrace(PrintWriter writer)
Description copied from interface:CallStackPrints the current stack trace if available to a PrintWriter. The format is undefined and is primarily useful for debugging issues withPooledObjectusage in user code.- Specified by:
printStackTracein interfaceCallStack- Parameters:
writer- a PrintWriter to write the current stack trace to if available- Returns:
- true if a stack trace was available to print or false if nothing was printed
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fillInStackTrace
public void fillInStackTrace()
Description copied from interface:CallStackTakes a snapshot of the current call stack. Subsequent calls toCallStack.printStackTrace(PrintWriter)will print out that stack trace until it is cleared.- Specified by:
fillInStackTracein interfaceCallStack
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clear
public void clear()
Description copied from interface:CallStackClears the current stack trace snapshot. Subsequent calls toCallStack.printStackTrace(PrintWriter)will be no-ops until another call toCallStack.fillInStackTrace().
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