org.perfectjpattern.jee.integration.dao
Class JpaQueryAdapter

java.lang.Object
  org.perfectjpattern.core.structural.AbstractSurrogate<T,A>
      org.perfectjpattern.core.structural.adapter.Adapter<IQuery,javax.persistence.Query>
          org.perfectjpattern.jee.integration.dao.JpaQueryAdapter

All Implemented Interfaces:

InvocationHandler, IAdapter<IQuery,javax.persistence.Query>, ISurrogate<IQuery>

public class JpaQueryAdapter
extends Adapter<IQuery,javax.persistence.Query>

Adapts Hibernate's Query to the JPA implementation-free PerfectJPattern's IQuery definition

Version:

$Revision: 1.0 $Date: Feb 18, 2009 11:54:49 AM $

Author:

Giovanni Azua

Constructor Summary

JpaQueryAdapter(javax.persistence.Query anAdaptee)
Constructs a JpaQueryAdapter from the Adaptee Query instance

Method Summary

protected Object

invokeUnderlying(Method aMethod, Object[] anArguments) Returns the result of the Method invocation.

Methods inherited from class org.perfectjpattern.core.structural.adapter.Adapter

getAdaptee, getTarget, setAdaptingStrategy

Methods inherited from class org.perfectjpattern.core.structural.AbstractSurrogate

equals, getComponent, getComponentClass, getUnderlying, hashCode, invoke

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.perfectjpattern.core.api.structural.ISurrogate

getComponent

Methods inherited from interface java.lang.reflect.InvocationHandler

invoke

Constructor Detail

JpaQueryAdapter

public JpaQueryAdapter(javax.persistence.Query anAdaptee)
                throws IllegalArgumentException

Constructs a JpaQueryAdapter from the Adaptee Query instance

Parameters:

anAdaptee - Adaptee Hibernate Query

Throws:

IllegalArgumentException

Method Detail

invokeUnderlying

protected Object invokeUnderlying(Method aMethod,
                                  Object[] anArguments)
                           throws Throwable

Returns the result of the Method invocation. This method has two main purposes:

• Provides facility to invoke a method on the actual Underlying
• Concrete surrogate implementations that override this method have a single point to control access to the actual Underlying method invokation.

Overrides:

invokeUnderlying in class Adapter<IQuery,javax.persistence.Query>

Parameters:

aMethod - Method to invoke

anArguments - Array of input arguments for the Method to invoke

Returns:

result of the Method invocation

Throws:

Throwable