| /******************************************************************************* |
| * Copyright (c) 2006, 2008 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.ui.internal.mappings.details; |
| |
| import org.eclipse.jpt.core.context.Nullable; |
| import org.eclipse.jpt.ui.internal.JpaHelpContextIds; |
| import org.eclipse.jpt.ui.internal.mappings.JptUiMappingsMessages; |
| import org.eclipse.jpt.ui.internal.widgets.FormPane; |
| import org.eclipse.jpt.utility.internal.model.value.PropertyAspectAdapter; |
| import org.eclipse.jpt.utility.internal.model.value.TransformationPropertyValueModel; |
| import org.eclipse.jpt.utility.model.value.PropertyValueModel; |
| import org.eclipse.jpt.utility.model.value.WritablePropertyValueModel; |
| import org.eclipse.osgi.util.NLS; |
| import org.eclipse.swt.widgets.Composite; |
| |
| /** |
| * This composite simply shows a tri-state check box for the Optional option. |
| * |
| * @see BasicMapping |
| * @see BasicMappingComposite - A container of this pane |
| * @see ManyToOneMappingComposite - A container of this pane |
| * @see OneToOneMappingComposite - A container of this pane |
| * |
| * @version 1.0 |
| * @since 2.0 |
| */ |
| public class OptionalComposite extends FormPane<Nullable> |
| { |
| /** |
| * Creates a new <code>OptionalComposite</code>. |
| * |
| * @param parentPane The parent container of this one |
| * @param parent The parent container |
| */ |
| public OptionalComposite(FormPane<? extends Nullable> parentPane, |
| Composite parent) |
| { |
| super(parentPane, parent); |
| } |
| |
| private WritablePropertyValueModel<Boolean> buildOptionalHolder() { |
| return new PropertyAspectAdapter<Nullable, Boolean>(getSubjectHolder(), Nullable.SPECIFIED_OPTIONAL_PROPERTY) { |
| @Override |
| protected Boolean buildValue_() { |
| return this.subject.getSpecifiedOptional(); |
| } |
| |
| @Override |
| protected void setValue_(Boolean value) { |
| this.subject.setSpecifiedOptional(value); |
| } |
| |
| @Override |
| protected void subjectChanged() { |
| Object oldValue = this.getValue(); |
| super.subjectChanged(); |
| Object newValue = this.getValue(); |
| |
| // Make sure the default value is appended to the text |
| if (oldValue == newValue && newValue == null) { |
| this.fireAspectChange(Boolean.TRUE, newValue); |
| } |
| } |
| }; |
| } |
| |
| private PropertyValueModel<String> buildOptionalStringHolder() { |
| |
| return new TransformationPropertyValueModel<Boolean, String>(buildOptionalHolder()) { |
| |
| @Override |
| protected String transform(Boolean value) { |
| |
| if ((getSubject() != null) && (value == null)) { |
| boolean defaultValue = getSubject().isDefaultOptional(); |
| |
| String defaultStringValue = defaultValue ? JptUiMappingsMessages.Boolean_True : |
| JptUiMappingsMessages.Boolean_False; |
| |
| return NLS.bind( |
| JptUiMappingsMessages.BasicGeneralSection_optionalLabelDefault, |
| defaultStringValue |
| ); |
| } |
| |
| return JptUiMappingsMessages.BasicGeneralSection_optionalLabel; |
| } |
| }; |
| } |
| |
| @Override |
| protected void initializeLayout(Composite container) { |
| |
| addTriStateCheckBoxWithDefault( |
| container, |
| JptUiMappingsMessages.BasicGeneralSection_optionalLabel, |
| buildOptionalHolder(), |
| buildOptionalStringHolder(), |
| JpaHelpContextIds.MAPPING_OPTIONAL |
| ); |
| } |
| } |