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Java Source Code / Java Documentation » Database ORM » db ojb » org.apache.ojb.broker.core.proxy 
Source Cross Reference  Class Diagram Java Document (Java Doc) 


java.lang.Object
   org.apache.ojb.broker.core.proxy.VirtualProxy

All known Subclasses:   org.apache.ojb.broker.ProductGroupProxy,  org.apache.ojb.broker.ArticleProxy,
VirtualProxy
abstract public class VirtualProxy implements OJBProxy,Serializable(Code)
Proxy base class. can be used to implement lazy materialization techniques.
author:
   Thomas Mahler
version:
   $Id: VirtualProxy.java,v 1.1.2.6 2005/12/21 22:25:30 tomdz Exp $


Field Summary
final static  longserialVersionUID
    

Constructor Summary
public  VirtualProxy()
     Creates a new, uninitialized proxy.
public  VirtualProxy(PBKey key, Identity oid)
     Creates a VirtualProxy for the subject with the given identity.
public  VirtualProxy(IndirectionHandler handler)
     Create a VirtualProxy that uses the given invocation handler.

Method Summary
public  booleanalreadyMaterialized()
     Determines whether this proxy already has been materialized.
 IdentitygetIdentity()
     Returns the identity of the subject.
public static  IndirectionHandlergetIndirectionHandler(VirtualProxy proxy)
     Returns the indirection handler of the given proxy.
public  IndirectionHandlergetIndirectionHandler()
    
public  ObjectgetRealSubject()
     Returns the proxies real subject.
public  ObjectwriteReplace()
    

Field Detail
serialVersionUID
final static long serialVersionUID(Code)




Constructor Detail
VirtualProxy
public VirtualProxy()(Code)
Creates a new, uninitialized proxy.



VirtualProxy
public VirtualProxy(PBKey key, Identity oid)(Code)
Creates a VirtualProxy for the subject with the given identity.
Parameters:
  key - The key of the PersistenceBroker
Parameters:
  oid - The identity of the subject



VirtualProxy
public VirtualProxy(IndirectionHandler handler)(Code)
Create a VirtualProxy that uses the given invocation handler. [tomdz] Why here the use of InvocationHandler ?
Parameters:
  handler - The indirection handler of the proxy




Method Detail
alreadyMaterialized
public boolean alreadyMaterialized()(Code)
Determines whether this proxy already has been materialized. true if the real subject already been loaded



getIdentity
Identity getIdentity()(Code)
Returns the identity of the subject. The identity



getIndirectionHandler
public static IndirectionHandler getIndirectionHandler(VirtualProxy proxy)(Code)
Returns the indirection handler of the given proxy.
Parameters:
  proxy - The proxy The indirection handler



getIndirectionHandler
public IndirectionHandler getIndirectionHandler()(Code)
Returns the IndirectionHandler The indirectionHandler



getRealSubject
public Object getRealSubject() throws PersistenceBrokerException(Code)
Returns the proxies real subject. The subject will be materialized if necessary. The subject



writeReplace
public Object writeReplace()(Code)



Methods inherited from java.lang.Object
native protected Object clone() throws CloneNotSupportedException(Code)(Java Doc)
public boolean equals(Object obj)(Code)(Java Doc)
protected void finalize() throws Throwable(Code)(Java Doc)
final native public Class getClass()(Code)(Java Doc)
native public int hashCode()(Code)(Java Doc)
final native public void notify()(Code)(Java Doc)
final native public void notifyAll()(Code)(Java Doc)
public String toString()(Code)(Java Doc)
final native public void wait(long timeout) throws InterruptedException(Code)(Java Doc)
final public void wait(long timeout, int nanos) throws InterruptedException(Code)(Java Doc)
final public void wait() throws InterruptedException(Code)(Java Doc)

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