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.jdbcimpl;
043:
044: import java.util.*;
045:
046: import org.netbeans.modules.dbschema.*;
047:
048: public abstract class KeyElementImpl extends DBMemberElementImpl
049: implements KeyElement.Impl {
050: private DBElementsCollection columns;
051:
052: /** Creates new KeyElementImpl */
053: public KeyElementImpl() {
054: }
055:
056: /** Creates new KeyElementImpl with the specified name */
057: public KeyElementImpl(String name) {
058: super (name);
059: columns = initializeCollection();
060:
061: //workaround for bug #4396371
062: //http://andorra.eng:8080/cgi-bin/ws.exe/bugtraq/bug.hts?where=bugid_value%3D4396371
063: Object hc = String.valueOf(columns.hashCode());
064: while (DBElementsCollection.instances.contains(hc)) {
065: columns = initializeCollection();
066: hc = String.valueOf(columns.hashCode());
067: }
068: DBElementsCollection.instances.add(hc);
069: }
070:
071: protected DBElementsCollection initializeCollection() {
072: return new DBElementsCollection(this , new ColumnElement[0]);
073: }
074:
075: /** Change the set of columns.
076: * @param elems the columns to change
077: * @param action one of {@link #ADD}, {@link #REMOVE}, or {@link #SET}
078: * @exception DBException if the action cannot be handled
079: */
080: public void changeColumns(ColumnElement[] elems, int action)
081: throws DBException {
082: columns.changeElements(elems, action);
083: }
084:
085: /** Get all columns.
086: * @return the columns
087: */
088: public ColumnElement[] getColumns() {
089: DBElement[] dbe = columns.getElements();
090: return (ColumnElement[]) Arrays.asList(dbe).toArray(
091: new ColumnElement[dbe.length]);
092: }
093:
094: /** Find a column by name.
095: * @param name the name for which to look
096: * @return the column, or <code>null</code> if it does not exist
097: */
098: public ColumnElement getColumn(DBIdentifier name) {
099: return (ColumnElement) columns.find(name);
100: }
101:
102: /** Returns the table collection of this schema element. This method
103: * should only be used internally and for cloning and archiving.
104: * @return the table collection of this schema element
105: */
106: public DBElementsCollection getColumnCollection() {
107: return columns;
108: }
109:
110: /** Set the table collection of this claschemass element to the supplied
111: * collection. This method should only be used internally and for
112: * cloning and archiving.
113: * @param collection the table collection of this schema element
114: */
115: public void setColumnCollection(DBElementsCollection collection) {
116: columns = collection;
117: }
118: }
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