/**
* <copyright>
*
* Copyright (c) 2004-2006 IBM Corporation and others.
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*
* Contributors:
* IBM - Initial API and implementation
*
* </copyright>
*
* $Id: DynamicEStoreEObjectImpl.java,v 1.6 2006/12/05 20:22:26 emerks Exp $
*/
package org.eclipse.emf.ecore.impl;
import org.eclipse.emf.common.util.EList;
import org.eclipse.emf.ecore.EClass;
import org.eclipse.emf.ecore.EReference;
import org.eclipse.emf.ecore.EStructuralFeature;
import org.eclipse.emf.ecore.InternalEObject;
import org.eclipse.emf.ecore.util.FeatureMap;
import org.eclipse.emf.ecore.util.FeatureMapUtil;
/**
* An implementation of '<em><b>EObject</b></em>' that delegates to a {@link org.eclipse.emf.ecore.InternalEObject.EStore store}.
*/
public class DynamicEStoreEObjectImpl extends DynamicEObjectImpl
{
protected static final InternalEObject EUNINITIALIZED_CONTAINER = new EObjectImpl();
protected InternalEObject.EStore eStore;
/**
* Creates a store-based EObject.
*/
public DynamicEStoreEObjectImpl()
{
super();
eContainer = EUNINITIALIZED_CONTAINER;
}
/**
* Creates a store-based EObject.
*/
public DynamicEStoreEObjectImpl(InternalEObject.EStore eStore)
{
super();
eSetStore(eStore);
eContainer = EUNINITIALIZED_CONTAINER;
}
/**
* Creates a store-based EObject.
*/
public DynamicEStoreEObjectImpl(EClass eClass)
{
super(eClass);
eContainer = EUNINITIALIZED_CONTAINER;
}
/**
* Creates a store-based EObject.
*/
public DynamicEStoreEObjectImpl(EClass eClass, InternalEObject.EStore eStore)
{
super(eClass);
eSetStore(eStore);
eContainer = EUNINITIALIZED_CONTAINER;
}
protected boolean eIsCaching()
{
return true;
}
@Override
public Object dynamicGet(int dynamicFeatureID)
{
Object result = eSettings[dynamicFeatureID];
if (result == null)
{
EStructuralFeature eStructuralFeature = eDynamicFeature(dynamicFeatureID);
if (!eStructuralFeature.isTransient())
{
if (FeatureMapUtil.isFeatureMap(eStructuralFeature))
{
eSettings[dynamicFeatureID] = result = createFeatureMap(eStructuralFeature);
}
else if (eStructuralFeature.isMany())
{
eSettings[dynamicFeatureID] = result = createList(eStructuralFeature);
}
else
{
result = eStore().get(this, eStructuralFeature, InternalEObject.EStore.NO_INDEX);
if (eIsCaching())
{
eSettings[dynamicFeatureID] = result;
}
}
}
}
return result;
}
@Override
public void dynamicSet(int dynamicFeatureID, Object value)
{
EStructuralFeature eStructuralFeature = eDynamicFeature(dynamicFeatureID);
if (eStructuralFeature.isTransient())
{
eSettings[dynamicFeatureID] = value;
}
else
{
eStore().set(this, eStructuralFeature, InternalEObject.EStore.NO_INDEX, value == NIL ? null : value);
if (eIsCaching())
{
eSettings[dynamicFeatureID] = value;
}
}
}
@Override
public void dynamicUnset(int dynamicFeatureID)
{
eStore().unset(this, eDynamicFeature(dynamicFeatureID));
eSettings[dynamicFeatureID] = null;
}
@Override
public boolean eDynamicIsSet(EStructuralFeature eStructuralFeature)
{
return
eStructuralFeature.isTransient() ?
super.eDynamicIsSet(eStructuralFeature) :
eStore().isSet(this, eStructuralFeature);
}
protected <T> EList<T> createList(EStructuralFeature eStructuralFeature)
{
return new EStoreEObjectImpl.EStoreEList<T>(this, eStructuralFeature, eStore());
}
protected FeatureMap createFeatureMap(EStructuralFeature eStructuralFeature)
{
return new EStoreEObjectImpl.EStoreFeatureMap(this, eStructuralFeature, eStore());
}
@Override
public InternalEObject eInternalContainer()
{
if (eContainer == EUNINITIALIZED_CONTAINER)
{
eInitializeContainer();
}
return eContainer;
}
@Override
public int eContainerFeatureID()
{
if (eContainer == EUNINITIALIZED_CONTAINER)
{
eInitializeContainer();
}
return eContainerFeatureID;
}
protected void eInitializeContainer()
{
eContainer = eStore().getContainer(this);
if (eContainer != null)
{
EStructuralFeature eContainingFeature = eStore().getContainingFeature(this);
if (eContainingFeature instanceof EReference)
{
EReference eContainingReference = (EReference)eContainingFeature;
EReference eOpposite = eContainingReference.getEOpposite();
if (eOpposite != null)
{
eContainerFeatureID = eClass().getFeatureID(eOpposite);
return;
}
}
eContainerFeatureID = EOPPOSITE_FEATURE_BASE - eContainer.eClass().getFeatureID(eContainingFeature);
}
}
@Override
public InternalEObject.EStore eStore()
{
return eStore;
}
@Override
public void eSetStore(InternalEObject.EStore store)
{
this.eStore = store;
}
/*
public String toString()
{
String result = super.toString();
int index = result.indexOf("DynamicEStoreEObjectImpl");
return index == -1 ? result : result.substring(0, index) + result.substring(index + 13);
}
*/
}