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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)

org.apache.ojb.broker.core.proxy .ProxyFactory

All known Subclasses:   org.apache.ojb.broker.core.proxy .AbstractProxyFactory,
ProxyFactory
public interface ProxyFactory extends Serializable(Code)
Factory class for creating instances of the indirection handler used by OJB's proxies, and for the collection proxies.
author:
   Thomas Dudziak
version:
   $Id: ProxyFactory.java,v 1.1.2.3 2005/12/21 22:25:31 tomdz Exp $

Method Summary
abstract public ManageableCollection createCollectionProxy(PBKey brokerKey, Query query, Class collectionClass)
     Create a Collection Proxy for a given context.
abstract public IndirectionHandler createIndirectionHandler(PBKey pbKey, Identity id)
     Creates a new indirection handler instance.
public OJBProxy createProxy(Class baseClass, IndirectionHandler handler)

public CollectionProxy getCollectionProxy(Object item)

abstract public Class getCollectionProxyClass()
     Returns the collection proxy class.
abstract public Class getDefaultIndirectionHandlerClass()
     Returns the class of a default IndirectionHandler that can be used for this implementaiton if now IndirectionHandlerClass implementation is given.
public IndirectionHandler getIndirectionHandler(Object obj)
     Returns the invocation handler object of the given proxy object.
abstract public Class getIndirectionHandlerBaseClass()

abstract public Class getIndirectionHandlerClass()
     Returns the indirection handler class.
abstract public Class getListProxyClass()
     Returns the list proxy class.
public Class getRealClass(Object objectOrProxy)

public Object getRealObject(Object objectOrProxy)

public Object getRealObjectIfMaterialized(Object objectOrProxy)

abstract public Class getSetProxyClass()
     Returns the set proxy class.
boolean interfaceRequiredForProxyGeneration()
     Method that returns whether or not this ProxyFactory can generate reference Proxies for classes regardless if they extend an interface or not.
public boolean isCollectionProxy(Object item)
     Reports if item is a CollectionProxy.
public boolean isMaterialized(Object object)
     Determines whether the object is a materialized object, i.e.
public boolean isNormalOjbProxy(Object proxyOrObject)
     Determines whether the given object is an OJB proxy.
public boolean isProxy(Object proxyOrObject)
     Returns true if the given object is a java.lang.reflect.Proxy or a VirtualProxy instance.
public boolean isVirtualOjbProxy(Object proxyOrObject)
     Determines whether the given object is an OJB virtual proxy.
abstract public void setCollectionProxyClass(Class collectionProxyClass)
     Dets the proxy class to use for generic collection classes implementing the java.util.Collection interface.
abstract public void setIndirectionHandlerClass(Class indirectionHandlerClass)
     Sets the indirection handler class.
abstract public void setListProxyClass(Class listProxyClass)
     Dets the proxy class to use for collection classes that implement the java.util.List interface.
abstract public void setSetProxyClass(Class setProxyClass)
     Dets the proxy class to use for collection classes that implement the Set interface.
public String toString(Object proxy)
     Materialization-safe version of toString.

Method Detail
createCollectionProxy
abstract public ManageableCollection createCollectionProxy(PBKey brokerKey, Query query, Class collectionClass)(Code)
Create a Collection Proxy for a given context.
Parameters:
  persistenceConf - The persistence configuration that the proxy will be bound to
Parameters:
  context - The creation context The collection proxy

createIndirectionHandler
abstract public IndirectionHandler createIndirectionHandler(PBKey pbKey, Identity id)(Code)
Creates a new indirection handler instance.
Parameters:
  persistenceConf - The persistence configuration
Parameters:
  id - The subject's ids The new instance

createProxy
public OJBProxy createProxy(Class baseClass, IndirectionHandler handler) throws Exception(Code)

getCollectionProxy
public CollectionProxy getCollectionProxy(Object item)(Code)
Return CollectionProxy for item is item is a CollectionProxy, otherwise return null

getCollectionProxyClass
abstract public Class getCollectionProxyClass()(Code)
Returns the collection proxy class. The class used for collection proxies

getDefaultIndirectionHandlerClass
abstract public Class getDefaultIndirectionHandlerClass()(Code)
Returns the class of a default IndirectionHandler that can be used for this implementaiton if now IndirectionHandlerClass implementation is given.

getIndirectionHandler
public IndirectionHandler getIndirectionHandler(Object obj)(Code)
Returns the invocation handler object of the given proxy object.
Parameters:
  obj - The object The invocation handler if the object is an OJB proxy, or nullotherwise

getIndirectionHandlerBaseClass
abstract public Class getIndirectionHandlerBaseClass()(Code)
Returns the class of the base class that the given IndirectionHandler must extend/implement

getIndirectionHandlerClass
abstract public Class getIndirectionHandlerClass()(Code)
Returns the indirection handler class. The class for indirection handlers

getListProxyClass
abstract public Class getListProxyClass()(Code)
Returns the list proxy class. The class used for list proxies

getRealClass
public Class getRealClass(Object objectOrProxy)(Code)
Get the real Class
Parameters:
  objectOrProxy - Class

getRealObject
public Object getRealObject(Object objectOrProxy)(Code)
Get the real Object
Parameters:
  objectOrProxy - Object

getRealObjectIfMaterialized
public Object getRealObjectIfMaterialized(Object objectOrProxy)(Code)
Get the real Object for already materialized Handler
Parameters:
  objectOrProxy - Object or null if the Handel is not materialized

getSetProxyClass
abstract public Class getSetProxyClass()(Code)
Returns the set proxy class. The class used for set proxies

interfaceRequiredForProxyGeneration
boolean interfaceRequiredForProxyGeneration()(Code)
Method that returns whether or not this ProxyFactory can generate reference Proxies for classes regardless if they extend an interface or not.

isCollectionProxy
public boolean isCollectionProxy(Object item)(Code)
Reports if item is a CollectionProxy. TODO: Provide handling for pluggable collection proxy implementations

isMaterialized
public boolean isMaterialized(Object object)(Code)
Determines whether the object is a materialized object, i.e. no proxy or a proxy that has already been loaded from the database.
Parameters:
  object - The object to test true if the object is materialized

isNormalOjbProxy
public boolean isNormalOjbProxy(Object proxyOrObject)(Code)
Determines whether the given object is an OJB proxy. true if the object is an OJB proxy

isProxy
public boolean isProxy(Object proxyOrObject)(Code)
Returns true if the given object is a java.lang.reflect.Proxy or a VirtualProxy instance.

isVirtualOjbProxy
public boolean isVirtualOjbProxy(Object proxyOrObject)(Code)
Determines whether the given object is an OJB virtual proxy. true if the object is an OJB virtual proxy

setCollectionProxyClass
abstract public void setCollectionProxyClass(Class collectionProxyClass)(Code)
Dets the proxy class to use for generic collection classes implementing the java.util.Collection interface.
Parameters:
  collectionProxyClass - The proxy class

setIndirectionHandlerClass
abstract public void setIndirectionHandlerClass(Class indirectionHandlerClass)(Code)
Sets the indirection handler class.
Parameters:
  indirectionHandlerClass - The class for indirection handlers

setListProxyClass
abstract public void setListProxyClass(Class listProxyClass)(Code)
Dets the proxy class to use for collection classes that implement the java.util.List interface. Notes that the proxy class must implement the java.util.List interface, and have a constructor of the signature ( org.apache.ojb.broker.PBKey , java.lang.Class , org.apache.ojb.broker.query.Query ).
Parameters:
  listProxyClass - The proxy class

setSetProxyClass
abstract public void setSetProxyClass(Class setProxyClass)(Code)
Dets the proxy class to use for collection classes that implement the Set interface.
Parameters:
  setProxyClass - The proxy class

toString
public String toString(Object proxy)(Code)
Materialization-safe version of toString. If the object is a yet-unmaterialized proxy, then only the text "unmaterialized proxy for ..." is returned and the proxy is NOT materialized. Otherwise, the normal toString method is called. This useful e.g. for logging etc.
Parameters:
  object - The object for which a string representation shall be generated The string representation

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