| /******************************************************************************* |
| * Copyright (c) 2006, 2007 IBM Corporation and others. |
| * 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: |
| * IBM Corporation - initial API and implementation |
| * Brad Reynolds - bug 147515 |
| *******************************************************************************/ |
| |
| package org.eclipse.core.databinding.observable.masterdetail; |
| |
| import org.eclipse.core.databinding.observable.list.IObservableList; |
| import org.eclipse.core.databinding.observable.set.IObservableSet; |
| import org.eclipse.core.databinding.observable.value.IObservableValue; |
| import org.eclipse.core.internal.databinding.observable.masterdetail.DetailObservableList; |
| import org.eclipse.core.internal.databinding.observable.masterdetail.DetailObservableSet; |
| import org.eclipse.core.internal.databinding.observable.masterdetail.DetailObservableValue; |
| |
| /** |
| * Allows for the observation of an attribute, the detail, of an observable |
| * representing selection or another transient instance, the master. |
| * |
| * @since 1.0 |
| */ |
| public class MasterDetailObservables { |
| |
| /** |
| * Creates a detail observable value from a master observable value and a |
| * factory. This can be used to create observable values that represent a |
| * property of a selected object in a table. |
| * |
| * @param master |
| * the observable value to track |
| * @param detailFactory |
| * a factory for creating {@link IObservableValue} instances |
| * given a current value of the master |
| * @param detailType |
| * the value type of the detail observable value, typically of |
| * type java.lang.Class and can be <code>null</code> |
| * @return an observable value of the given value type that, for any current |
| * value of the given master value, behaves like the observable |
| * value created by the factory for that current value. |
| */ |
| public static IObservableValue detailValue(IObservableValue master, |
| IObservableFactory detailFactory, Object detailType) { |
| return new DetailObservableValue(master, detailFactory, detailType); |
| } |
| |
| /** |
| * Creates a detail observable list from a master observable value and a |
| * factory. This can be used to create observable lists that represent a |
| * list property of a selected object in a table. |
| * |
| * @param master |
| * the observable value to track |
| * @param detailFactory |
| * a factory for creating {@link IObservableList} instances given |
| * a current value of the master |
| * @param detailElementType |
| * the element type of the detail observable list, typically of |
| * type java.lang.Class and can be <code>null</code> |
| * @return an observable list with the given element type that, for any |
| * current value of the given master value, behaves like the |
| * observable list created by the factory for that current value. |
| */ |
| public static IObservableList detailList(IObservableValue master, |
| IObservableFactory detailFactory, Object detailElementType) { |
| return new DetailObservableList(detailFactory, master, |
| detailElementType); |
| } |
| |
| /** |
| * Creates a detail observable set from a master observable value and a |
| * factory. This can be used to create observable sets that represent a set |
| * property of a selected object in a table. |
| * |
| * @param master |
| * the observable value to track |
| * @param detailFactory |
| * a factory for creating {@link IObservableSet} instances given |
| * a current value of the master |
| * @param detailElementType |
| * the element type of the detail observable set, typically of |
| * type java.lang.Class and can be <code>null</code> |
| * @return an observable set with the given element type that, for any |
| * current value of the given master value, behaves like the |
| * observable set created by the factory for that current value. |
| */ |
| public static IObservableSet detailSet(IObservableValue master, |
| IObservableFactory detailFactory, Object detailElementType) { |
| return new DetailObservableSet(detailFactory, master, detailElementType); |
| } |
| |
| } |