Class AbstractQueryReport.StatementProxy

java.lang.Object

org.apache.tomcat.jdbc.pool.interceptor.AbstractQueryReport.StatementProxy

All Implemented Interfaces:

InvocationHandler

Enclosing class:

AbstractQueryReport

protected class AbstractQueryReport.StatementProxy
extends Object
implements InvocationHandler

Class to measure query execute time

Field Summary

Fields

Modifier and Type	Field	Description
protected boolean	closed	Indicates whether the proxy has been closed.
protected Object	delegate	The statement being proxied, or a further interceptor's proxy of it, nulled once a close has been forwarded.
protected final String	query	The SQL the statement was prepared with, or null when it was created without one.

Constructor Summary

Constructors

Constructor	Description
StatementProxy(Object parent, String query)	Constructs a new StatementProxy.

Method Summary

Modifier and Type	Method	Description
boolean	equals(Object obj)
int	hashCode()
Object	invoke(Object proxy, Method method, Object[] args)
String	toString()

Methods inherited from class Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Field Details

closed

protected volatile boolean closed

Indicates whether the proxy has been closed. A statement can be closed from a thread other than the one executing on it - the statement finalizer closes tracked statements from whichever thread closes the connection - so the flag is written by one thread and read by others, and must be volatile to reach them at all.

delegate

protected volatile Object delegate

The statement being proxied, or a further interceptor's proxy of it, nulled once a close has been forwarded. It is read by threads other than the one that nulls it, so, like closed, volatile.

query

protected final String query

The SQL the statement was prepared with, or null when it was created without one.

Constructor Details

StatementProxy

public StatementProxy(Object parent,
 String query)

Constructs a new StatementProxy.

Parameters:

parent - The statement being proxied, or a further interceptor's proxy of it

query - The SQL the statement was prepared with, or null when it was created without one

Method Details

invoke

public Object invoke(Object proxy,
 Method method,
 Object[] args)
              throws Throwable

Specified by:

invoke in interface InvocationHandler

Throws:

Throwable

hashCode

public int hashCode()

Overrides:

hashCode in class Object

equals

public boolean equals(Object obj)

Overrides:

equals in class Object

toString

public String toString()

Overrides:

toString in class Object