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/*******************************************************************************
* Copyright (c) 2007, 2013 Oracle. 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:
* Oracle - initial API and implementation
******************************************************************************/
package org.eclipse.jpt.jpa.core.context.persistence;
import org.eclipse.jpt.common.utility.iterable.ListIterable;
import org.eclipse.jpt.jpa.core.context.XmlFile;
import org.eclipse.jpt.jpa.core.resource.persistence.XmlPersistence;
/**
* Context model corresponding to the XML resource model {@link XmlPersistence},
* which corresponds to the <code>persistence</code> element in the
* <code>persistence.xml</code> file.
* <p>
* Provisional API: This interface is part of an interim API that is still
* under development and expected to change significantly before reaching
* stability. It is available at this early stage to solicit feedback from
* pioneering adopters on the understanding that any code that uses this API
* will almost certainly be broken (repeatedly) as the API evolves.
*
* @version 2.1
* @since 2.0
*/
public interface Persistence
extends XmlFile.Root
{
/**
* Return the resource model object associated with this context model object
*/
XmlPersistence getXmlPersistence();
/**
* Covariant override.
*/
PersistenceXml getParent();
Class<Persistence> getStructureType();
PersistenceXml getPersistenceXml();
// ********** persistence units **********
/**
* String constant associated with changes to the persistence units list
*/
String PERSISTENCE_UNITS_LIST = "persistenceUnits"; //$NON-NLS-1$
/**
* Return the persistence element's persistence units.
*/
ListIterable<PersistenceUnit> getPersistenceUnits();
/**
* Return the number of persistence units.
*/
int getPersistenceUnitsSize();
/**
* Return the persistence unit at the specified index.
*/
PersistenceUnit getPersistenceUnit(int index);
/**
* Add a persistence unit and return it.
*/
PersistenceUnit addPersistenceUnit();
/**
* Add a persistence unit at the specified index and return it.
*/
PersistenceUnit addPersistenceUnit(int index);
/**
* Remove the specified persistence unit from the persistence node.
*/
void removePersistenceUnit(PersistenceUnit persistenceUnit);
/**
* Remove the persistence unit at the specified index from the persistence node.
*/
void removePersistenceUnit(int index);
//TODO would like to remove this eventually
void dispose();
}
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