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/*******************************************************************************
* Copyright (c) 2009, 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.internal.transformer.TransformerAdapter;
import org.eclipse.jpt.common.utility.transformer.Transformer;
import org.eclipse.jpt.jpa.core.context.PersistentType;
/**
* Interface used by persistence unit to gather up persistent types.
* <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 2.3
* @since 2.3
*/
public interface PersistentTypeContainer {
/**
* Return the container's persistent types. The returned list may contain
* multiple persistent types for the same Java class; e.g.<ul>
* <li>the same type is specified in both the <code>persistence.xml</code> and
* <code>orm.xml</code> files
* <Li>the same type is specified multiple times in the same
* <code>persistence.xml</code> or <code>orm.xml</code> file
* <li>the same type is in a jar file specified in the
* <code>persistence.xml</code> file and is specified in the
* <code>persistence.xml</code> file and/or an <code>orm.xml</code> file
* </ul>
*/
Iterable<? extends PersistentType> getPersistentTypes();
Transformer<PersistentTypeContainer, Iterable<? extends PersistentType>> TRANSFORMER = new PersistentTypesTransformer();
class PersistentTypesTransformer
extends TransformerAdapter<PersistentTypeContainer, Iterable<? extends PersistentType>>
{
@Override
public Iterable<? extends PersistentType> transform(PersistentTypeContainer container) {
return container.getPersistentTypes();
}
}
/**
* Return the persistent type with the specified name.
* Return <code>null</code> if the persistent type is not found.
* If the persistent unit has more than one persistent type with the
* specified name, return the first one found, using the following
* search order:<ul>
* <li>mapping files
* <li>classes
* <li>jar files
* </ul>
*/
PersistentType getPersistentType(String typeName);
}
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