| /******************************************************************************* |
| * Copyright (c) 2008, 2009 Matthew Hall 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: |
| * Matthew Hall - initial API and implementation (bug 194734) |
| * Matthew Hall - bugs 195222, 263868, 264954 |
| ******************************************************************************/ |
| |
| package org.eclipse.core.databinding.property; |
| |
| import java.util.List; |
| import java.util.Map; |
| import java.util.Set; |
| |
| import org.eclipse.core.databinding.observable.Realm; |
| import org.eclipse.core.databinding.observable.list.IObservableList; |
| import org.eclipse.core.databinding.observable.map.IObservableMap; |
| import org.eclipse.core.databinding.observable.set.IObservableSet; |
| import org.eclipse.core.databinding.observable.value.IObservableValue; |
| import org.eclipse.core.databinding.property.list.IListProperty; |
| import org.eclipse.core.databinding.property.map.IMapProperty; |
| import org.eclipse.core.databinding.property.set.ISetProperty; |
| import org.eclipse.core.databinding.property.value.IValueProperty; |
| import org.eclipse.core.internal.databinding.property.list.SelfListProperty; |
| import org.eclipse.core.internal.databinding.property.map.SelfMapProperty; |
| import org.eclipse.core.internal.databinding.property.set.SelfSetProperty; |
| import org.eclipse.core.internal.databinding.property.value.ObservableValueProperty; |
| import org.eclipse.core.internal.databinding.property.value.SelfValueProperty; |
| |
| /** |
| * Contains static methods to operate on or return IProperty objects. |
| * |
| * @since 1.2 |
| */ |
| public class Properties { |
| /** |
| * Returns an array of observable maps where each map observes the |
| * corresponding value property on all elements in the given domain set, for |
| * each property in the given array. |
| * |
| * @param domainSet |
| * the set of elements whose properties will be observed |
| * @param properties |
| * array of value properties to observe on each element in the |
| * domain set. |
| * @return an array of observable maps where each map observes the |
| * corresponding value property of the given domain set. |
| */ |
| public static IObservableMap[] observeEach(IObservableSet domainSet, |
| IValueProperty[] properties) { |
| IObservableMap[] maps = new IObservableMap[properties.length]; |
| for (int i = 0; i < maps.length; i++) |
| maps[i] = properties[i].observeDetail(domainSet); |
| return maps; |
| } |
| |
| /** |
| * Returns an array of observable maps where each maps observes the |
| * corresponding value property on all elements in the given domain map's |
| * {@link Map#values() values} collection, for each property in the given |
| * array. |
| * |
| * @param domainMap |
| * the map of elements whose properties will be observed |
| * @param properties |
| * array of value properties to observe on each element in the |
| * domain map's {@link Map#values() values} collection. |
| * @return an array of observable maps where each maps observes the |
| * corresponding value property on all elements in the given domain |
| * map's {@link Map#values() values} collection, for each property |
| * in the given array. |
| */ |
| public static IObservableMap[] observeEach(IObservableMap domainMap, |
| IValueProperty[] properties) { |
| IObservableMap[] maps = new IObservableMap[properties.length]; |
| for (int i = 0; i < maps.length; i++) |
| maps[i] = properties[i].observeDetail(domainMap); |
| return maps; |
| } |
| |
| /** |
| * Returns a value property which takes the source object itself as the |
| * property value. This property may be used to wrap an object in an |
| * unmodifiable {@link IObservableValue}. |
| * |
| * @param valueType |
| * the value type of the property |
| * @return a value property which takes the source object itself as the |
| * property value. |
| */ |
| public static IValueProperty selfValue(Object valueType) { |
| return new SelfValueProperty(valueType); |
| } |
| |
| /** |
| * Returns a list property which takes the source object (a {@link List}) as |
| * the property list. This property may be used to wrap an arbitrary List |
| * instance in an {@link IObservableList}. |
| * |
| * @param elementType |
| * the element type of the property |
| * @return a list property which takes the source object (a {@link List}) as |
| * the property list. |
| */ |
| public static IListProperty selfList(Object elementType) { |
| return new SelfListProperty(elementType); |
| } |
| |
| /** |
| * Returns a set property which takes the source object (a {@link Set}) as |
| * the property set. This property may be used to wrap an arbitrary Set |
| * instance in an {@link IObservableSet}. |
| * |
| * @param elementType |
| * the element type of the property |
| * @return a set property which takes the source object (a {@link Set}) as |
| * the property set. |
| */ |
| public static ISetProperty selfSet(Object elementType) { |
| return new SelfSetProperty(elementType); |
| } |
| |
| /** |
| * Returns a map property which takes the source object (a {@link Map}) as |
| * the property map. This property may be used to wrap an arbitrary Map |
| * instance in an {@link IObservableMap}. |
| * |
| * @param keyType |
| * the key type of the property |
| * @param valueType |
| * the value type of the property |
| * @return a map property which takes the source object (a {@link Map} as |
| * the property map. |
| */ |
| public static IMapProperty selfMap(Object keyType, Object valueType) { |
| return new SelfMapProperty(keyType, valueType); |
| } |
| |
| /** |
| * Returns a value property which observes the value of an |
| * {@link IObservableValue}. This property may be used e.g. for observing |
| * the respective values of an {@link IObservableList} < |
| * {@link IObservableValue} >. |
| * <p> |
| * Calls to {@link IValueProperty#observe(Object)} or |
| * {@link IValueProperty#observe(Realm, Object)} just cast the argument to |
| * {@link IObservableValue} and return it (the realm argument is ignored). |
| * |
| * @param valueType |
| * the value type of the property |
| * @return a value property which observes the value of an |
| * {@link IObservableValue}. |
| */ |
| public static IValueProperty observableValue(Object valueType) { |
| return new ObservableValueProperty(valueType); |
| } |
| } |