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/**
* Copyright (c) 2004 - 2009 Eike Stepper (Berlin, Germany) 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:
* Eike Stepper - initial API and implementation
*/
package org.eclipse.emf.cdo.common.model;
import org.eclipse.emf.ecore.EPackage;
/**
* @author Eike Stepper
* @since 2.0
*/
public interface CDOPackageUnit extends Comparable<CDOPackageUnit>
{
public CDOPackageRegistry getPackageRegistry();
public String getID();
public State getState();
public Type getType();
public Type getOriginalType();
public long getTimeStamp();
public CDOPackageInfo getTopLevelPackageInfo();
public CDOPackageInfo getPackageInfo(String packageURI);
public CDOPackageInfo[] getPackageInfos();
public EPackage[] getEPackages(boolean loadOnDemand);
public boolean isSystem();
/**
* @author Eike Stepper
*/
public enum State
{
NEW, LOADED, PROXY, DISPOSED
}
/**
* @author Eike Stepper
*/
public enum Type
{
NATIVE, LEGACY, DYNAMIC, UNKNOWN;
public boolean isGenerated()
{
checkNotUnknown();
return this == NATIVE || this == LEGACY;
}
public void checkNotUnknown()
{
if (this == UNKNOWN)
{
throw new IllegalStateException("Package unit type is unknown");
}
}
}
}
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