| /******************************************************************************* |
| * Copyright (c) 2011 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.jpa2.context; |
| |
| import org.eclipse.jpt.jpa.core.context.AssociationOverride; |
| import org.eclipse.jpt.jpa.core.context.MappingRelationship; |
| import org.eclipse.jpt.jpa.core.context.ReadOnlyRelationshipStrategy; |
| import org.eclipse.jpt.jpa.core.context.RelationshipMapping; |
| import org.eclipse.jpt.jpa.core.context.RelationshipStrategy; |
| |
| /** |
| * Strategy describing how two entities are joined via a |
| * {@link RelationshipMapping}:<ul> |
| * <li>join column |
| * <li>join table |
| * <li>"mapped by" |
| * <li>primary key join column |
| * </ul> |
| * 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. |
| * |
| * @see RelationshipMapping |
| * @see AssociationOverride |
| * @see MappingRelationship |
| */ |
| public interface MappingRelationshipStrategy2_0 |
| extends RelationshipStrategy |
| { |
| /** |
| * Select from the specified override relationship which of its strategies |
| * is the override strategy (<em>join column</em> or <em>join table</em>). |
| * An association override can only override the same strategy as the |
| * strategy used by its overridden mapping (i.e. if the overridden mapping |
| * uses the <em>join column</em> strategy, the association override must |
| * also use the <em>join column</em> strategy; it cannot change the strategy |
| * to <em>join table</em>). |
| * |
| * Return <code>null</code> if the override relationship cannot be |
| * determined (typically because the association override's name does not |
| * match the name of an appropriate attribute mapping in the overridden |
| * mapped superclass or embeddable type). |
| */ |
| ReadOnlyRelationshipStrategy selectOverrideStrategy(ReadOnlyOverrideRelationship2_0 overrideRelationship); |
| } |
