/*
* Copyright (c) 1998-2011 Caucho Technology -- all rights reserved
*
* This file is part of Resin(R) Open Source
*
* Each copy or derived work must preserve the copyright notice and this
* notice unmodified.
*
* Resin Open Source is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* Resin Open Source is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE, or any warranty
* of NON-INFRINGEMENT. See the GNU General Public License for more
* details.
*
* You should have received a copy of the GNU General Public License
* along with Resin Open Source; if not, write to the
* Free Software Foundation, Inc.
* 59 Temple Place, Suite 330
* Boston, MA 02111-1307 USA
*
* @author Scott Ferguson
*/
package com.caucho.amber.type;
import com.caucho.amber.field.Id;
import com.caucho.amber.manager.AmberPersistenceUnit;
import com.caucho.amber.table.AmberColumn;
import com.caucho.util.L10N;
/**
* Represents an application persistent bean type
*/
public class SubEntityType extends EntityType {
private static final L10N L = new L10N(SubEntityType.class);
private EntityType _root;
private EntityType _parent;
public SubEntityType(AmberPersistenceUnit amberPersistenceUnit,
EntityType parent)
{
super(amberPersistenceUnit);
_parent = parent;
_root = parent.getRootType();
if (_root == null) {
// jpa/0ge2: parent is MappedSuperclassType.
_root = this;
}
_loadGroupIndex = -1;
_defaultLoadGroupIndex = -1;
_dirtyIndex = -1;
}
/**
* Returns the id.
*/
@Override
public Id getId()
{
if (super.getId() != null)
return super.getId();
else
return _parent.getId();
}
/**
* Returns the root type.
*/
public EntityType getRootType()
{
return _root;
}
/**
* Returns the parent class.
*/
public EntityType getParentType()
{
return _parent;
}
/**
* Returns true if the superclass is a MappedSuperclass.
*/
public boolean isParentMappedSuperclass()
{
if (_parent instanceof MappedSuperclassType)
return true;
return false;
}
/**
* Returns the discriminator.
*/
@Override
public AmberColumn getDiscriminator()
{
if (getRootType() == this) // jpa/0ge2
return super.getDiscriminator();
return getRootType().getDiscriminator();
}
/**
* Returns the load group index, overriding the parent.
*/
@Override
public int getLoadGroupIndex()
{
if (_loadGroupIndex < 0) {
_loadGroupIndex = _parent.getLoadGroupIndex();
// jpa/0ge2: MappedSuperclassType and
// jpa/0gg0: abstract parent
if (_parent.isEntity()) {
_loadGroupIndex++;
_defaultLoadGroupIndex = _loadGroupIndex;
}
}
return _loadGroupIndex;
}
/**
* Returns the current load group.
*/
public int getDefaultLoadGroupIndex()
{
if (_defaultLoadGroupIndex < 0) {
// initialized by getLoadGroupIndex()
if (getParentType().isEntity())
getLoadGroupIndex();
else
_defaultLoadGroupIndex = _parent.getDefaultLoadGroupIndex();
}
return _defaultLoadGroupIndex;
}
/**
* Returns the dirty index, overriding the parent.
*/
public int getDirtyIndex()
{
if (_dirtyIndex < 0) {
_dirtyIndex = _parent.getDirtyIndex();
_minDirtyIndex = _dirtyIndex;
}
return _dirtyIndex;
}
/**
* Printable version of the entity.
*/
public String toString()
{
return "SubEntityType[" + getBeanClass().getName() + "]";
}
}