| /******************************************************************************* |
| * Copyright (c) 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.db; |
| |
| import java.util.Iterator; |
| import org.eclipse.jpt.core.JpaNode; |
| import org.eclipse.jpt.db.SchemaContainer; |
| import org.eclipse.jpt.ui.WidgetFactory; |
| import org.eclipse.jpt.ui.internal.widgets.Pane; |
| import org.eclipse.jpt.utility.internal.iterators.EmptyIterator; |
| import org.eclipse.jpt.utility.model.value.PropertyValueModel; |
| import org.eclipse.swt.widgets.Composite; |
| |
| /** |
| * This combo-box displays a schema container's schemata. |
| */ |
| public abstract class SchemaCombo<T extends JpaNode> |
| extends DatabaseObjectCombo<T> |
| { |
| public SchemaCombo(Pane<? extends T> parentPane, Composite parent) { |
| super(parentPane, parent); |
| } |
| |
| public SchemaCombo( |
| Pane<?> parentPane, |
| PropertyValueModel<? extends T> subjectHolder, |
| Composite parent |
| ) { |
| super(parentPane, subjectHolder, parent); |
| } |
| |
| public SchemaCombo( |
| PropertyValueModel<? extends T> subjectHolder, |
| Composite parent, |
| WidgetFactory widgetFactory |
| ) { |
| super(subjectHolder, parent, widgetFactory); |
| } |
| |
| @Override |
| protected Iterator<String> values() { |
| SchemaContainer sc = this.getDbSchemaContainer(); |
| return (sc == null) ? EmptyIterator.<String>instance() : sc.sortedSchemaIdentifiers(); |
| } |
| |
| protected SchemaContainer getDbSchemaContainer() { |
| return (this.getSubject() == null) ? null : this.getDbSchemaContainer_(); |
| } |
| |
| /** |
| * Assume the subject is not null. |
| */ |
| protected abstract SchemaContainer getDbSchemaContainer_(); |
| |
| } |