//$Id: LazyInitializer.java 7246 2005-06-20 20:32:36Z oneovthafew $
package org.hibernate.proxy;
import java.io.Serializable;
import org.hibernate.HibernateException;
import org.hibernate.engine.SessionImplementor;
/**
* Handles fetching of the underlying entity for a proxy
* @author Gavin King
*/
public interface LazyInitializer {
/**
* Initialize the proxy, fetching the target
* entity if necessary
*/
public abstract void initialize() throws HibernateException;
/**
* Get the identifier held by the proxy
*/
public abstract Serializable getIdentifier();
/**
* Set the identifier property of the proxy
*/
public abstract void setIdentifier(Serializable id);
/**
* Get the entity name
*/
public abstract String getEntityName();
/**
* Get the actual class of the entity (don't
* use this, use the entityName)
*/
public abstract Class getPersistentClass();
/**
* Is the proxy uninitialzed?
*/
public abstract boolean isUninitialized();
/**
* Initialize the proxy manually
*/
public abstract void setImplementation(Object target);
/**
* Get the session, if this proxy is attached
*/
public abstract SessionImplementor getSession();
/**
* Attach the proxy to a session
*/
public abstract void setSession(SessionImplementor s) throws HibernateException;
/**
* Return the underlying persistent object, initializing if necessary
*/
public abstract Object getImplementation();
/**
* Return the underlying persistent object in the given <tt>Session</tt>, or null
*/
public abstract Object getImplementation(SessionImplementor s)
throws HibernateException;
public void setUnwrap(boolean unwrap);
public boolean isUnwrap();
}
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