| /******************************************************************************* |
| * Copyright (c) 2006-2008 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 164268, 171616 |
| * Mike Evans - bug 217558 |
| * Matthew Hall - bug 221351 |
| *******************************************************************************/ |
| |
| package org.eclipse.core.tests.databinding.beans; |
| |
| import java.util.Arrays; |
| |
| import org.eclipse.core.databinding.DataBindingContext; |
| import org.eclipse.core.databinding.beans.BeansObservables; |
| import org.eclipse.core.databinding.beans.IBeanObservable; |
| import org.eclipse.core.databinding.observable.Realm; |
| import org.eclipse.core.databinding.observable.list.IObservableList; |
| import org.eclipse.core.databinding.observable.masterdetail.IObservableFactory; |
| import org.eclipse.core.databinding.observable.set.IObservableSet; |
| import org.eclipse.core.databinding.observable.value.IObservableValue; |
| import org.eclipse.core.databinding.observable.value.WritableValue; |
| import org.eclipse.core.internal.databinding.beans.BeanObservableListDecorator; |
| import org.eclipse.core.internal.databinding.beans.BeanObservableSetDecorator; |
| import org.eclipse.core.internal.databinding.beans.BeanObservableValueDecorator; |
| import org.eclipse.core.tests.internal.databinding.beans.Bean; |
| import org.eclipse.jface.tests.databinding.AbstractDefaultRealmTestCase; |
| |
| /** |
| * @since 3.2 |
| */ |
| public class BeansObservablesTest extends AbstractDefaultRealmTestCase { |
| Bean[] elements = null; |
| Bean model = null; |
| Class elementType = null; |
| |
| protected void setUp() throws Exception { |
| super.setUp(); |
| |
| elements = new Bean[] { new Bean("1"), new Bean("2"), new Bean("3") }; |
| model = new Bean(elements); |
| model.setList(Arrays.asList(elements)); |
| elementType = Bean.class; |
| } |
| |
| public void testObserveListArrayInferredElementType() throws Exception { |
| IObservableList list = BeansObservables.observeList(Realm.getDefault(), |
| model, "list", null); |
| assertEquals("element type", Object.class, list.getElementType()); |
| } |
| |
| public void testObserveListNonInferredElementType() throws Exception { |
| elementType = Object.class; |
| IObservableList list = BeansObservables.observeList(Realm.getDefault(), |
| model, "list", null); |
| assertEquals("element type", elementType, list.getElementType()); |
| } |
| |
| public void testListFactory() throws Exception { |
| IObservableFactory factory = BeansObservables.listFactory(Realm |
| .getDefault(), "list", elementType); |
| IObservableList list = (IObservableList) factory |
| .createObservable(model); |
| |
| assertTrue("elements of the list", Arrays.equals(elements, list |
| .toArray(new Bean[list.size()]))); |
| assertEquals("element type", elementType, list.getElementType()); |
| } |
| |
| public void testObserveDetailListElementType() throws Exception { |
| WritableValue parent = WritableValue.withValueType(Bean.class); |
| parent.setValue(model); |
| IObservableList list = BeansObservables.observeDetailList(Realm |
| .getDefault(), parent, "list", elementType); |
| |
| assertEquals("element type", elementType, list.getElementType()); |
| assertTrue("elements of list", Arrays.equals(elements, list |
| .toArray(new Bean[list.size()]))); |
| } |
| |
| public void testObserveDetailValueIBeanObservable() throws Exception { |
| WritableValue parent = WritableValue.withValueType(Bean.class); |
| parent.setValue(new Bean()); |
| |
| IObservableValue detailValue = BeansObservables.observeDetailValue( |
| Realm.getDefault(), parent, "value", String.class); |
| assertTrue(detailValue instanceof IBeanObservable); |
| |
| BeanObservableValueDecorator beanObservable = (BeanObservableValueDecorator) detailValue; |
| assertEquals("property descriptor", Bean.class.getMethod("getValue", |
| null), beanObservable.getPropertyDescriptor().getReadMethod()); |
| assertEquals("observed", parent.getValue(), beanObservable.getObserved()); |
| assertTrue("delegate", beanObservable.getDelegate().getClass() |
| .getName().endsWith("DetailObservableValue")); |
| } |
| |
| public void testObserveDetailValueNullOuterElementType() throws Exception { |
| WritableValue parent = new WritableValue(new Bean(), null); |
| |
| IObservableValue detailValue = BeansObservables.observeDetailValue( |
| Realm.getDefault(), parent, "value", String.class); |
| |
| assertNull("property descriptor", ((IBeanObservable) detailValue) |
| .getPropertyDescriptor()); |
| } |
| |
| public void testObservableDetailListIBeanObservable() throws Exception { |
| WritableValue parent = WritableValue.withValueType(Bean.class); |
| parent.setValue(new Bean()); |
| |
| IObservableList detailList = BeansObservables.observeDetailList(Realm |
| .getDefault(), parent, "list", Bean.class); |
| assertTrue("detail is not an IBeanObservable", |
| detailList instanceof IBeanObservable); |
| |
| BeanObservableListDecorator beanObservable = (BeanObservableListDecorator) detailList; |
| assertEquals("property descriptor", Bean.class.getMethod("getList", |
| null), beanObservable.getPropertyDescriptor().getReadMethod()); |
| assertEquals("observed", parent, beanObservable.getObserved()); |
| |
| // DetailObservableList is package level we can do a straight instanceof |
| // check |
| assertTrue("delegate is the observed", beanObservable.getDelegate() |
| .equals(detailList)); |
| } |
| |
| public void testObservableDetailListNullOuterElementType() throws Exception { |
| WritableValue parent = new WritableValue(new Bean(), null); |
| |
| IObservableList detailList = BeansObservables.observeDetailList(Realm |
| .getDefault(), parent, "list", Bean.class); |
| |
| assertNull("property descriptor", ((IBeanObservable) detailList) |
| .getPropertyDescriptor()); |
| } |
| |
| public void testObservableDetailSetIBeanObservable() throws Exception { |
| WritableValue parent = WritableValue.withValueType(Bean.class); |
| parent.setValue(new Bean()); |
| |
| IObservableSet detailSet = BeansObservables.observeDetailSet(Realm |
| .getDefault(), parent, "set", Bean.class); |
| assertTrue("detail is not an IBeanObservable", |
| detailSet instanceof IBeanObservable); |
| |
| BeanObservableSetDecorator beanObservable = (BeanObservableSetDecorator) detailSet; |
| assertEquals("property descriptor", Bean.class |
| .getMethod("getSet", null), beanObservable |
| .getPropertyDescriptor().getReadMethod()); |
| assertEquals("observed", parent, beanObservable.getObserved()); |
| |
| // DetailObservableSet is package level we can't do a straight |
| // instanceof check |
| assertTrue("delegate is the observed", beanObservable.getDelegate() |
| .equals(detailSet)); |
| } |
| |
| public void testObservableDetailSetNullOuterElementType() throws Exception { |
| WritableValue parent = new WritableValue(new Bean(), null); |
| |
| IObservableSet detailSet = BeansObservables.observeDetailSet(Realm |
| .getDefault(), parent, "set", Bean.class); |
| |
| assertNull("property descriptor", ((IBeanObservable) detailSet) |
| .getPropertyDescriptor()); |
| } |
| |
| public void testObserveSetElementType() throws Exception { |
| Bean bean = new Bean(); |
| IObservableSet observableSet = BeansObservables.observeSet(Realm |
| .getDefault(), bean, "set", Bean.class); |
| assertEquals(Bean.class, observableSet.getElementType()); |
| } |
| |
| public void testObserveSetNonInferredElementType() throws Exception { |
| Bean bean = new Bean(); |
| IObservableSet observableSet = BeansObservables.observeSet(Realm |
| .getDefault(), bean, "set"); |
| assertEquals(Object.class, observableSet.getElementType()); |
| } |
| /** |
| * Test for fix for Bug 217558 [DataBinding] Databinding - BeansObservables.observeList() |
| * - error when external code modifies observed list. |
| */ |
| public void testHandleExternalChangeToProperty() { |
| Bean targetBean = new Bean(); |
| IObservableList modelObservable = BeansObservables.observeList(Realm.getDefault(), |
| model, "array", elementType ); |
| IObservableList targetObservable = BeansObservables.observeList(Realm.getDefault(), |
| targetBean, "array", elementType ); |
| |
| DataBindingContext context = new DataBindingContext( Realm.getDefault() ); |
| try { |
| // bind two beans and check the binding works |
| context.bindList( |
| targetObservable, |
| modelObservable, |
| null, |
| null ); |
| assertTrue( Arrays.equals( elements, targetBean.getArray() ) ); |
| |
| // set source direct - target databinding still works... |
| Bean[] newElements = new Bean[] { new Bean("4"), new Bean("5"), new Bean("6") }; |
| model.setArray( newElements ); |
| assertTrue( Arrays.equals( newElements, targetBean.getArray() ) ); |
| |
| // ... but setting the model's list breaks databinding the other way... |
| |
| // ... so setting target direct breaks databinding without fix and |
| // the assert would fail |
| newElements = new Bean[] { new Bean("7"), new Bean("8"), new Bean("9") }; |
| targetBean.setArray( newElements ); |
| assertTrue( Arrays.equals( newElements, model.getArray() ) ); |
| } |
| finally { |
| // context only needed for this test so not put in setUp / tearDown |
| context.dispose(); |
| } |
| |
| } |
| |
| } |