Class NoOpCallStack
java.lang.Object
org.apache.tomcat.dbcp.pool2.impl.NoOpCallStack
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Field Summary
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Method Summary
Modifier and TypeMethodDescriptionvoid
clear()
Clears the current stack trace snapshot.void
Takes a snapshot of the current call stack.boolean
printStackTrace
(PrintWriter writer) Prints the current stack trace if available to a PrintWriter.
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Field Details
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INSTANCE
Singleton instance.
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Method Details
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clear
public void clear()Description copied from interface:CallStack
Clears the current stack trace snapshot. Subsequent calls toCallStack.printStackTrace(PrintWriter)
will be no-ops until another call toCallStack.fillInStackTrace()
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fillInStackTrace
public void fillInStackTrace()Description copied from interface:CallStack
Takes a snapshot of the current call stack. Subsequent calls toCallStack.printStackTrace(PrintWriter)
will print out that stack trace until it is cleared.- Specified by:
fillInStackTrace
in interfaceCallStack
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printStackTrace
Description copied from interface:CallStack
Prints the current stack trace if available to a PrintWriter. The format is undefined and is primarily useful for debugging issues withPooledObject
usage in user code.- Specified by:
printStackTrace
in 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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