| /******************************************************************************* |
| * Copyright (c) 2009, 2010 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.core.context; |
| |
| /** |
| * A <code>RelationshipReference</code> represents the meta-information required |
| * to populate the entities involved in a <code>RelationshipMapping</code>. This |
| * might includes join table information, join column information, and/or |
| * "mappedBy" information, to name a few. |
| * <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. |
| * |
| * |
| * @see RelationshipMapping |
| * |
| * @version 2.3 |
| * @since 2.2 |
| */ |
| public interface RelationshipReference |
| extends JpaContextNode |
| { |
| RelationshipMapping getRelationshipMapping(); |
| |
| /** |
| * Return the TypeMapping that owns this relationship reference |
| */ |
| TypeMapping getTypeMapping(); |
| |
| /** |
| * Return the entity that owns the relationship mapping. This is |
| * just a convenience method that calls getTypeMapping() and returns |
| * null if it is not an Entity |
| */ |
| Entity getEntity(); |
| |
| /** |
| * Return whether this is the owning side of the relationship. |
| * @see {@link RelationshipMapping#isRelationshipOwner()} |
| */ |
| boolean isRelationshipOwner(); |
| |
| /** |
| * Returns whether the given mapping is the owning side of a relationship |
| * with this relationship reference |
| */ |
| boolean isOwnedBy(RelationshipMapping mapping); |
| |
| /** |
| * String associated with changes to the predominant strategy property |
| */ |
| final static String PREDOMINANT_JOINING_STRATEGY_PROPERTY = |
| "predominantStrategy"; //$NON-NLS-1$ |
| |
| /** |
| * Return the predominant joining strategy, this should not be null |
| */ |
| JoiningStrategy getPredominantJoiningStrategy(); |
| |
| /** |
| * Return whether the mapping can be overridden with an association override |
| */ |
| boolean isOverridableAssociation(); |
| |
| /** |
| * Return whether the parent of this relationship reference is virtual |
| * @return |
| */ |
| boolean isParentVirtual(); |
| |
| /** |
| * Return whether this relationship is a target foreign key relationship. |
| * A one-to-many mapping with a join column will have the foreign key |
| * in the target table. |
| */ |
| boolean isTargetForeignKeyRelationship(); |
| |
| } |