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/*******************************************************************************
* Copyright (c) 2010, 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;
/**
* Join column relationship<ul>
* <li>1:1
* <li>1:m
* <li>m:1
* <li>association override
* </ul>
* <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
* @see SpecifiedRelationship
* @see SpecifiedJoinColumn
*/
public interface JoinColumnRelationship
extends Relationship
{
/**
* Return the (never <code>null</code>) strategy used to configure
* the relationship's join column strategy.
*/
JoinColumnRelationshipStrategy getJoinColumnStrategy();
/**
* Return whether the join column strategy is the
* relationship's current strategy.
*/
boolean strategyIsJoinColumn();
/**
* Return whether this relationship may potentially have a default join
* column. For example, a 1-1 mapping may have a default join column
* if it does not specify a "mapped by" attribute or a join table;
* but a 1-M mapping does not support a default join column in any
* situation.
*/
boolean mayHaveDefaultJoinColumn();
}
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