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: package org.netbeans.modules.vmd.api.model.presenters.actions;
042:
043: import org.netbeans.modules.vmd.api.model.Presenter;
044: import org.netbeans.modules.vmd.api.model.DesignComponent;
045: import org.netbeans.modules.vmd.api.model.PropertyValue;
046:
047: import java.util.Collection;
048:
049: /**
050: * @author David Kaspar
051: */
052: public abstract class DeleteDependencyPresenter extends Presenter {
053:
054: /**
055: * Returns whether the related component requires any of specified components to live.
056: * @param componentsToDelete the collection of components
057: * @return true, if the related component requires any of specified components to live
058: */
059: protected abstract boolean requiresToLive(
060: Collection<DesignComponent> componentsToDelete);
061:
062: /**
063: * Notifies about deleted components. Components are deleted
064: * @param componentsToDelete
065: */
066: protected abstract void componentsDeleting(
067: Collection<DesignComponent> componentsToDelete);
068:
069: public static Presenter createNullableComponentReferencePresenter(
070: final String... propertyNames) {
071: return new DeleteDependencyPresenter() {
072:
073: protected boolean requiresToLive(
074: Collection<DesignComponent> componentsToDelete) {
075: return false;
076: }
077:
078: protected void componentsDeleting(
079: Collection<DesignComponent> componentsToDelete) {
080: for (String propertyName : propertyNames) {
081: DesignComponent component = getComponent()
082: .readProperty(propertyName).getComponent();
083: if (component != null
084: && componentsToDelete.contains(component))
085: getComponent().writeProperty(propertyName,
086: PropertyValue.createNull());
087: }
088: }
089:
090: };
091: }
092:
093: public static Presenter createDependentOnParentComponentPresenter() {
094: return new DeleteDependencyPresenter() {
095: protected boolean requiresToLive(
096: Collection<DesignComponent> componentsToDelete) {
097: DesignComponent parentComponent = getComponent()
098: .getParentComponent();
099: return parentComponent != null
100: && componentsToDelete.contains(parentComponent);
101: }
102:
103: protected void componentsDeleting(
104: Collection<DesignComponent> componentsToDelete) {
105: }
106: };
107: }
108:
109: public static Presenter createDependentOnPropertyPresenter(
110: final String propertyName) {
111: return new DeleteDependencyPresenter() {
112: protected boolean requiresToLive(
113: Collection<DesignComponent> componentsToDelete) {
114: DesignComponent component = getComponent()
115: .readProperty(propertyName).getComponent();
116: return component != null
117: && componentsToDelete.contains(component);
118: }
119:
120: protected void componentsDeleting(
121: Collection<DesignComponent> componentsToDelete) {
122: }
123: };
124: }
125:
126: }
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