com.sun.jdo.api.persistence.model.mapping.MappingRelationshipElement Maven / Gradle / Ivy
Go to download
Show more of this group Show more artifacts with this name
Show all versions of payara-micro Show documentation
Show all versions of payara-micro Show documentation
Micro Distribution of the Payara Project for IBM JDK
/*
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
*
* Copyright (c) 1997-2010 Oracle and/or its affiliates. All rights reserved.
*
* The contents of this file are subject to the terms of either the GNU
* General Public License Version 2 only ("GPL") or the Common Development
* and Distribution License("CDDL") (collectively, the "License"). You
* may not use this file except in compliance with the License. You can
* obtain a copy of the License at
* https://glassfish.dev.java.net/public/CDDL+GPL_1_1.html
* or packager/legal/LICENSE.txt. See the License for the specific
* language governing permissions and limitations under the License.
*
* When distributing the software, include this License Header Notice in each
* file and include the License file at packager/legal/LICENSE.txt.
*
* GPL Classpath Exception:
* Oracle designates this particular file as subject to the "Classpath"
* exception as provided by Oracle in the GPL Version 2 section of the License
* file that accompanied this code.
*
* Modifications:
* If applicable, add the following below the License Header, with the fields
* enclosed by brackets [] replaced by your own identifying information:
* "Portions Copyright [year] [name of copyright owner]"
*
* Contributor(s):
* If you wish your version of this file to be governed by only the CDDL or
* only the GPL Version 2, indicate your decision by adding "[Contributor]
* elects to include this software in this distribution under the [CDDL or GPL
* Version 2] license." If you don't indicate a single choice of license, a
* recipient has the option to distribute your version of this file under
* either the CDDL, the GPL Version 2 or to extend the choice of license to
* its licensees as provided above. However, if you add GPL Version 2 code
* and therefore, elected the GPL Version 2 license, then the option applies
* only if the new code is made subject to such option by the copyright
* holder.
*/
/*
* MappingRelationshipElement.java
*
* Created on March 3, 2000, 1:11 PM
*/
package com.sun.jdo.api.persistence.model.mapping;
import java.util.ArrayList;
import org.netbeans.modules.dbschema.ColumnPairElement;
import com.sun.jdo.api.persistence.model.ModelException;
/**
* This is a specialized field element which represents a relationship
* between two classes. The mapping portion should be set up as follows:
* When mapping a non-join table relationship, call the {@link #addColumn}
* method once with each pair of columns between the local table and the
* foreign table. When mapping a join table relationship, call the
* {@link #addLocalColumn} once for each pair of columns between the
* local table and the join table and {@link #addAssociatedColumn} once for
* each pair of columns between the join table and the foreign table.
* Note that the number of pairs (local and associated) may differ and that
* the order of adding them (local first or associated first) is not
* important.
*
* @author Mark Munro
* @author Rochelle Raccah
* @version %I%
*/
public interface MappingRelationshipElement extends MappingFieldElement
{
//=================== column handling for join tables ====================
/** Returns the list of associated column names to which this
* mapping field is mapped. This is used for join tables.
* @return the names of the columns mapped by this mapping field
* @see MappingFieldElement#getColumns
*/
public ArrayList getAssociatedColumns ();
/** Adds a column to the list of columns mapped by this mapping field.
* Call this method instead of addColumn
when mapping join
* tables. This method is used to map between the local column and the
* join table, while addAssociatedColumn
is used to
* map between the join table and the foreign table.
* @param column foreign column element to be added to the mapping
* @exception ModelException if impossible
* @see MappingFieldElement#addColumn
* @see #addAssociatedColumn
*/
public void addLocalColumn (ColumnPairElement column) throws ModelException;
/** Adds a column to the list of associated columns mapped by this mapping
* field. Call this method instead of addColumn
when mapping
* join tables. This method is used to map between the join table column
* and the foreign table column, while addLocalColumn
is used
* to map between the local table and the join table.
* @param column foreign column element to be added to the mapping
* @exception ModelException if impossible
* @see MappingFieldElement#addColumn
* @see #addLocalColumn
*/
public void addAssociatedColumn (ColumnPairElement column)
throws ModelException;
}
© 2015 - 2024 Weber Informatics LLC | Privacy Policy