bitronix.tm.resource.jdbc
Class BaseProxyHandlerClass

java.lang.Object
  bitronix.tm.resource.jdbc.BaseProxyHandlerClass

All Implemented Interfaces:

java.lang.reflect.InvocationHandler

Direct Known Subclasses:

JdbcCallableStatementHandle, JdbcConnectionHandle, JdbcPreparedStatementHandle, JdbcResultSetHandle, JdbcStatementHandle, JdbcUncachedPreparedStatementHandle, LrcConnectionHandle, LrcXAConnection

public abstract class BaseProxyHandlerClass
extends java.lang.Object
implements java.lang.reflect.InvocationHandler

Base class for Proxy InvocationHandlers. Maintains a method cache for swift delegation to either the overridden methods (implemented in a sub-class of this class) or the underlying delegate class' methods. Makes proxying an interface almost completely painless.

Author:

brettw

Constructor Summary

BaseProxyHandlerClass()

Method Summary

abstract java.lang.Object	getProxiedDelegate() Must be implemented by the sub-class of this class.
java.lang.Object	invoke(java.lang.Object proxy, java.lang.reflect.Method method, java.lang.Object[] args) Implementation of the InvocationHandler interface.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

BaseProxyHandlerClass

public BaseProxyHandlerClass()

Method Detail

invoke

public java.lang.Object invoke(java.lang.Object proxy,
                               java.lang.reflect.Method method,
                               java.lang.Object[] args)
                        throws java.lang.Throwable

Implementation of the InvocationHandler interface.

Specified by:

invoke in interface java.lang.reflect.InvocationHandler

Throws:

java.lang.Throwable

See Also:

InvocationHandler

getProxiedDelegate

public abstract java.lang.Object getProxiedDelegate()
                                             throws java.lang.Exception

Must be implemented by the sub-class of this class. This method should return the "true" object to be delegated to in the case that the method is not overridden by the sub-class.

Returns:

the true delegate object

Throws:

java.lang.Exception - can throw any exception if desired