001: /*
002: * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
003: *
004: * Copyright 1997-2007 Sun Microsystems, Inc. All rights reserved.
005: *
006: * The contents of this file are subject to the terms of either the GNU
007: * General Public License Version 2 only ("GPL") or the Common
008: * Development and Distribution License("CDDL") (collectively, the
009: * "License"). You may not use this file except in compliance with the
010: * License. You can obtain a copy of the License at
011: * http://www.netbeans.org/cddl-gplv2.html
012: * or nbbuild/licenses/CDDL-GPL-2-CP. See the License for the
013: * specific language governing permissions and limitations under the
014: * License. When distributing the software, include this License Header
015: * Notice in each file and include the License file at
016: * nbbuild/licenses/CDDL-GPL-2-CP. Sun designates this
017: * particular file as subject to the "Classpath" exception as provided
018: * by Sun in the GPL Version 2 section of the License file that
019: * accompanied this code. If applicable, add the following below the
020: * License Header, with the fields enclosed by brackets [] replaced by
021: * your own identifying information:
022: * "Portions Copyrighted [year] [name of copyright owner]"
023: *
024: * Contributor(s):
025: *
026: * The Original Software is NetBeans. The Initial Developer of the Original
027: * Software is Sun Microsystems, Inc. Portions Copyright 1997-2006 Sun
028: * Microsystems, Inc. All Rights Reserved.
029: *
030: * If you wish your version of this file to be governed by only the CDDL
031: * or only the GPL Version 2, indicate your decision by adding
032: * "[Contributor] elects to include this software in this distribution
033: * under the [CDDL or GPL Version 2] license." If you do not indicate a
034: * single choice of license, a recipient has the option to distribute
035: * your version of this file under either the CDDL, the GPL Version 2 or
036: * to extend the choice of license to its licensees as provided above.
037: * However, if you add GPL Version 2 code and therefore, elected the GPL
038: * Version 2 license, then the option applies only if the new code is
039: * made subject to such option by the copyright holder.
040: */
041:
042: package org.netbeans.modules.dbschema;
043:
044: import java.io.*;
045:
046: /** Superclass for containable database metadata members
047: * (columns, indexes, and foreign keys). Provides support
048: * for associating this element with a declaring table.
049: */
050: public abstract class DBMemberElement extends DBElement implements
051: Cloneable {
052: /** the table to which this element belongs */
053: private TableElement declaringTable;
054:
055: /** Default constructor
056: */
057: protected DBMemberElement() {
058: }
059:
060: /** Creates a member element.
061: * @param impl the pluggable implementation
062: * @param declaringTable the table to which this element belongs, or
063: * <code>null</code> if unattached
064: */
065: protected DBMemberElement(Impl impl, TableElement declaringTable) {
066: super (impl);
067: this .declaringTable = declaringTable;
068: }
069:
070: /** Returns the implementation of the element.
071: * @return the current implementation.
072: */
073: final Impl getMemberImpl() {
074: return (Impl) getElementImpl();
075: }
076:
077: /* This should be automatically synchronized
078: * when a DBMemberElement is added to the table. */
079:
080: /** Gets the declaring table.
081: * @return the table that owns this member element, or <code>null</code>
082: * if the element is not attached to any table
083: */
084: public TableElement getDeclaringTable() {
085: return declaringTable;
086: }
087:
088: /** Sets the declaring table.
089: * @param te the table that owns this member element
090: */
091: public void setDeclaringTable(TableElement te) {
092: if (declaringTable == null)
093: declaringTable = te;
094: }
095:
096: /** Pluggable implementation of member elements.
097: * @see DBMemberElement
098: */
099: public interface Impl extends DBElement.Impl {
100: }
101:
102: /** Default implementation of the Impl interface.
103: * It just holds the property values.
104: */
105: static abstract class Memory extends DBElement.Memory implements
106: DBMemberElement.Impl {
107: /** Default */
108: public Memory() {
109: super ();
110: }
111:
112: /** Copy */
113: public Memory(DBMemberElement el) {
114: super(el);
115: }
116: }
117: }
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