[richfaces-svn-commits] JBoss Rich Faces SVN: r16912 - in root/ui/trunk/components/core/src: main/java/org/richfaces/component and 10 other directories.

Author: nbelaevski Date: 2010-05-06 18:42:05 -0400 (Thu, 06 May 2010) New Revision: 16912 Added: root/ui/trunk/components/core/src/test/java/org/richfaces/view/ root/ui/trunk/components/core/src/test/java/org/richfaces/view/facelets/ root/ui/trunk/components/core/src/test/java/org/richfaces/view/facelets/html/ root/ui/trunk/components/core/src/test/java/org/richfaces/view/facelets/html/AttachQueueHandlerTest.java root/ui/trunk/components/core/src/test/resources/org/richfaces/ root/ui/trunk/components/core/src/test/resources/org/richfaces/view/ root/ui/trunk/components/core/src/test/resources/org/richfaces/view/facelets/ root/ui/trunk/components/core/src/test/resources/org/richfaces/view/facelets/html/ root/ui/trunk/components/core/src/test/resources/org/richfaces/view/facelets/html/attachQueueWithNestedAjax.xhtml root/ui/trunk/components/core/src/test/resources/org/richfaces/view/facelets/html/attachQueueWithParentComponent.xhtml root/ui/trunk/components/core/src/test/resources/org/richfaces/view/facelets/html/attachQueueWithWrappingAjax.xhtml root/ui/trunk/components/core/src/test/resources/org/richfaces/view/facelets/html/attachQueueWithWrappingBehaviors.xhtml Modified: root/ui/trunk/components/core/src/main/java/org/ajax4jsf/component/behavior/AjaxBehavior.java root/ui/trunk/components/core/src/main/java/org/richfaces/component/AbstractAttachQueue.java root/ui/trunk/components/core/src/main/java/org/richfaces/view/facelets/html/AjaxHandler.java root/ui/trunk/components/core/src/main/java/org/richfaces/view/facelets/html/AttachQueueHandler.java root/ui/trunk/components/core/src/main/java/org/richfaces/view/facelets/html/BehaviorsAddingComponentHandlerWrapper.java Log: https://jira.jboss.org/jira/browse/RFPL-518 Modified: root/ui/trunk/components/core/src/main/java/org/ajax4jsf/component/behavior/AjaxBehavior.java =================================================================== --- root/ui/trunk/components/core/src/main/java/org/ajax4jsf/component/behavior/AjaxBehavior.java 2010-05-06 22:38:53 UTC (rev 16911) +++ root/ui/trunk/components/core/src/main/java/org/ajax4jsf/component/behavior/AjaxBehavior.java 2010-05-06 22:42:05 UTC (rev 16912) @@ -6,7 +6,6 @@ import javax.el.ELContext; import javax.el.ValueExpression; -import javax.faces.component.UIComponent; import javax.faces.component.UIComponentBase; import javax.faces.component.behavior.FacesBehavior; import javax.faces.context.FacesContext; @@ -241,10 +240,6 @@ clearInitialState(); } - public void attachToQueue(FacesContext context, UIComponent queueComponent) { - setQueueId(queueComponent.getClientId(context)); - } - public boolean isLimitRender() { if (this.limitRender != null) { return this.limitRender.booleanValue(); Modified: root/ui/trunk/components/core/src/main/java/org/richfaces/component/AbstractAttachQueue.java =================================================================== --- root/ui/trunk/components/core/src/main/java/org/richfaces/component/AbstractAttachQueue.java 2010-05-06 22:38:53 UTC (rev 16911) +++ root/ui/trunk/components/core/src/main/java/org/richfaces/component/AbstractAttachQueue.java 2010-05-06 22:42:05 UTC (rev 16912) @@ -21,10 +21,18 @@ */ package org.richfaces.component; +import java.util.ArrayList; +import java.util.List; + import javax.faces.component.UIComponent; import javax.faces.component.UIComponentBase; -import javax.faces.context.FacesContext; +import javax.faces.event.AbortProcessingException; +import javax.faces.event.ComponentSystemEvent; +import javax.faces.event.ComponentSystemEventListener; +import javax.faces.event.ListenerFor; +import javax.faces.event.PostAddToViewEvent; +import org.ajax4jsf.component.behavior.AjaxBehavior; import org.richfaces.cdk.annotations.Attribute; import org.richfaces.cdk.annotations.JsfComponent; import org.richfaces.cdk.annotations.Tag; @@ -39,16 +47,17 @@ handler = "org.richfaces.view.facelets.html.AttachQueueHandler", generate = false, type = TagType.Facelets) ) -public abstract class AbstractAttachQueue extends UIComponentBase { +@ListenerFor(systemEventClass = PostAddToViewEvent.class) +public abstract class AbstractAttachQueue extends UIComponentBase implements ComponentSystemEventListener { public static final String COMPONENT_TYPE = "org.richfaces.AttachQueue"; public static final String QUEUE_ID_ATTRIBUTE = "queueId"; - private enum PropertyKeys { - attachToParent - } + private transient List<UIComponent> componentsToAssociate; + private transient List<AjaxBehavior> behaviorsToAssociate; + @Attribute public abstract String getRequestSimilarityId(); @@ -72,37 +81,72 @@ return null; } - public boolean isAttachToParent() { - Object propertyValue = getStateHelper().get(PropertyKeys.attachToParent); - if (propertyValue == null) { - //default value is true - return true; + private static void immediateAssociateWith(UIComponent component, String queueId) { + component.getAttributes().put(QUEUE_ID_ATTRIBUTE, queueId); + } + + private static void immediateAssociateWith(AjaxBehavior behavior, String queueId) { + behavior.setQueueId(queueId); + } + + /** + * <p>Establishes association between attachQueue component and component passed as method argument.</p> + * <p>Association can be established either immediately just before returning from this method, or postponed + * until attachQueue component will be added to view.</p> + * + * @param component + */ + public void associateWith(UIComponent component) { + if (isInView()) { + immediateAssociateWith(component, getClientId()); } else { - return Boolean.TRUE.equals(propertyValue); + if (componentsToAssociate == null) { + componentsToAssociate = new ArrayList<UIComponent>(2); + } + + componentsToAssociate.add(component); } } + + /** + * <p>Establishes association between attachQueue component and behavior passed as method argument.</p> + * <p>Association can be established either immediately just before returning from this method, or postponed + * until attachQueue component will be added to view.</p> + * + * @param behavior + */ + public void associateWith(AjaxBehavior behavior) { + if (isInView()) { + immediateAssociateWith(behavior, getClientId()); + } else { + if (behaviorsToAssociate == null) { + behaviorsToAssociate = new ArrayList<AjaxBehavior>(2); + } - public void setAttachToParent(boolean attachToParent) { - getStateHelper().put(PropertyKeys.attachToParent, attachToParent); + behaviorsToAssociate.add(behavior); + } } @Override - public void setParent(UIComponent parent) { - UIComponent oldParent = getParent(); + public void processEvent(ComponentSystemEvent event) throws AbortProcessingException { + super.processEvent(event); - super.setParent(parent); + String queueId = getClientId(); - if (isAttachToParent()) { - if (oldParent != null) { - oldParent.getAttributes().remove(QUEUE_ID_ATTRIBUTE); + if (componentsToAssociate != null) { + for (UIComponent componentToAssociate : componentsToAssociate) { + immediateAssociateWith(componentToAssociate, queueId); } - if (parent != null) { - FacesContext context = getFacesContext(); - String clientId = getClientId(context); - - parent.getAttributes().put(QUEUE_ID_ATTRIBUTE, clientId); + componentsToAssociate = null; + } + + if (behaviorsToAssociate != null) { + for (AjaxBehavior ajaxBehavior : behaviorsToAssociate) { + immediateAssociateWith(ajaxBehavior, queueId); } + + behaviorsToAssociate = null; } } } Modified: root/ui/trunk/components/core/src/main/java/org/richfaces/view/facelets/html/AjaxHandler.java =================================================================== --- root/ui/trunk/components/core/src/main/java/org/richfaces/view/facelets/html/AjaxHandler.java 2010-05-06 22:38:53 UTC (rev 16911) +++ root/ui/trunk/components/core/src/main/java/org/richfaces/view/facelets/html/AjaxHandler.java 2010-05-06 22:42:05 UTC (rev 16912) @@ -113,8 +113,23 @@ if (behaviorInfo != null) { if (behaviorInfo.isWrapping()) { AbstractAttachQueue attachQueue = attachQueueInfo.getAttachQueue(); - assignAttachQueueComponent(context, attachQueue, behaviorInfo.getBehaviors()); + if (attachQueue != null) { + List<ClientBehavior> behaviors = behaviorInfo.getBehaviors(); + if (behaviors != null) { + for (ClientBehavior behavior : behaviors) { + if (behavior instanceof AjaxBehavior) { + AjaxBehavior createdAjaxBehavior = (AjaxBehavior) behavior; + attachQueue.associateWith(createdAjaxBehavior); + } + } + } + } } else { + AbstractAttachQueue attachQueue = attachQueueInfo.getAttachQueue(); + if (attachQueue != null) { + attachQueue.associateWith(ajaxBehavior); + } + applyNested(ctx, parent, ajaxBehavior); } } else { @@ -194,21 +209,6 @@ } } - private void assignAttachQueueComponent(FacesContext context, AbstractAttachQueue attachQueue, - List<ClientBehavior> behaviors) { - - if (behaviors != null && attachQueue != null) { - for (ClientBehavior behavior : behaviors) { - if (!(behavior instanceof AjaxBehavior)) { - continue; - } - - AjaxBehavior ajaxBehavior = (AjaxBehavior) behavior; - ajaxBehavior.attachToQueue(context, attachQueue); - } - } - } - private String resolveEventName(ClientBehaviorHolder bHolder) { String eventName = getEventName(); if (null == eventName) { Modified: root/ui/trunk/components/core/src/main/java/org/richfaces/view/facelets/html/AttachQueueHandler.java =================================================================== --- root/ui/trunk/components/core/src/main/java/org/richfaces/view/facelets/html/AttachQueueHandler.java 2010-05-06 22:38:53 UTC (rev 16911) +++ root/ui/trunk/components/core/src/main/java/org/richfaces/view/facelets/html/AttachQueueHandler.java 2010-05-06 22:42:05 UTC (rev 16912) @@ -45,17 +45,23 @@ public void onComponentCreated(FaceletContext ctx, UIComponent c, UIComponent parent) { super.onComponentCreated(ctx, c, parent); + AbstractAttachQueue attachQueue = ((AbstractAttachQueue) c); + boolean associateWithParent = true; + AttachQueueStack attachQueueStack = AttachQueueStack.getStack(ctx.getFacesContext(), false); if (attachQueueStack != null) { AttachQueueInfo attachQueueInfo = attachQueueStack.peek(); if (attachQueueInfo != null) { UIComponent queueInfoParent = attachQueueInfo.getParentComponent(); if (queueInfoParent.equals(parent)) { - AbstractAttachQueue attachQueue = ((AbstractAttachQueue) c); attachQueueInfo.setAttachQueue(attachQueue); - attachQueue.setAttachToParent(false); + associateWithParent = false; } } } + + if (associateWithParent) { + attachQueue.associateWith(parent); + } } } Modified: root/ui/trunk/components/core/src/main/java/org/richfaces/view/facelets/html/BehaviorsAddingComponentHandlerWrapper.java =================================================================== --- root/ui/trunk/components/core/src/main/java/org/richfaces/view/facelets/html/BehaviorsAddingComponentHandlerWrapper.java 2010-05-06 22:38:53 UTC (rev 16911) +++ root/ui/trunk/components/core/src/main/java/org/richfaces/view/facelets/html/BehaviorsAddingComponentHandlerWrapper.java 2010-05-06 22:42:05 UTC (rev 16912) @@ -36,6 +36,8 @@ import javax.faces.view.facelets.Tag; import javax.faces.view.facelets.TagAttribute; +import org.richfaces.component.AbstractAttachQueue; + /** * @author Nick Belaevski */ @@ -100,7 +102,9 @@ BehaviorStack behaviorStack = BehaviorStack.getBehaviorStack(facesContext, false); if (behaviorStack != null && !behaviorStack.isEmpty()) { - behaviorStack.markWrapping(); + if (!(c instanceof AbstractAttachQueue)) { + behaviorStack.markWrapping(); + } if (c instanceof ClientBehaviorHolder) { ClientBehaviorHolder behaviorHolder = (ClientBehaviorHolder) c; Added: root/ui/trunk/components/core/src/test/java/org/richfaces/view/facelets/html/AttachQueueHandlerTest.java =================================================================== --- root/ui/trunk/components/core/src/test/java/org/richfaces/view/facelets/html/AttachQueueHandlerTest.java (rev 0) +++ root/ui/trunk/components/core/src/test/java/org/richfaces/view/facelets/html/AttachQueueHandlerTest.java 2010-05-06 22:42:05 UTC (rev 16912) @@ -0,0 +1,202 @@ +/* + * JBoss, Home of Professional Open Source + * Copyright 2010, Red Hat, Inc. and individual contributors + * by the @authors tag. See the copyright.txt in the distribution for a + * full listing of individual contributors. + * + * This is free software; you can redistribute it and/or modify it + * under the terms of the GNU Lesser General Public License as + * published by the Free Software Foundation; either version 2.1 of + * the License, or (at your option) any later version. + * + * This software is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with this software; if not, write to the Free + * Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA + * 02110-1301 USA, or see the FSF site: http://www.fsf.org. + */ +package org.richfaces.view.facelets.html; + +import static org.junit.Assert.assertEquals; +import static org.junit.Assert.assertNotNull; +import static org.junit.Assert.assertNull; +import static org.junit.Assert.assertTrue; + +import java.io.IOException; +import java.util.List; + +import javax.faces.application.ViewHandler; +import javax.faces.component.UIComponent; +import javax.faces.component.UIViewRoot; +import javax.faces.component.behavior.ClientBehavior; +import javax.faces.component.behavior.ClientBehaviorHolder; +import javax.faces.context.FacesContext; +import javax.faces.view.ViewDeclarationLanguage; + +import org.ajax4jsf.component.behavior.AjaxBehavior; +import org.jboss.test.faces.FacesEnvironment; +import org.jboss.test.faces.FacesEnvironment.FacesRequest; +import org.junit.After; +import org.junit.Before; +import org.junit.Test; +import org.richfaces.component.AbstractAttachQueue; + + +/** + * @author Nick Belaevski + * + */ +public class AttachQueueHandlerTest { + + private FacesEnvironment environment; + + private FacesRequest facesRequest; + + private FacesContext facesContext; + + private UIViewRoot viewRoot; + + @Before + public void setUp() throws Exception { + environment = FacesEnvironment.createEnvironment(); + + environment.withWebRoot( + getClass().getResource("/org/richfaces/view/facelets/html/attachQueueWithNestedAjax.xhtml")); + + environment.start(); + + facesRequest = environment.createFacesRequest(); + facesRequest.start(); + + facesContext = FacesContext.getCurrentInstance(); + viewRoot = facesContext.getViewRoot(); + } + + @After + public void tearDown() throws Exception { + viewRoot = null; + facesContext = null; + + facesRequest.release(); + facesRequest = null; + + environment.release(); + environment = null; + } + + private void buildView(String viewId) throws IOException { + viewRoot.setViewId(viewId); + ViewHandler viewHandler = facesContext.getApplication().getViewHandler(); + ViewDeclarationLanguage vdl = viewHandler.getViewDeclarationLanguage(facesContext, viewRoot.getViewId()); + vdl.buildView(facesContext, viewRoot); + } + + private AjaxBehavior getAjaxBehavior(String componentId, String eventName) { + UIComponent component = viewRoot.findComponent(componentId); + assertNotNull(component); + + ClientBehaviorHolder behaviorHolder = (ClientBehaviorHolder) component; + + String localEventName = eventName; + if (localEventName == null) { + localEventName = behaviorHolder.getDefaultEventName(); + } + + List<ClientBehavior> behaviors = behaviorHolder.getClientBehaviors().get(localEventName); + if (behaviors != null) { + for (ClientBehavior behavior : behaviors) { + if (behavior instanceof AjaxBehavior) { + return (AjaxBehavior) behavior; + } + } + } + + return null; + } + + private void checkNotAssignedToParent(String attachQueueId) { + UIComponent attachQueue = viewRoot.findComponent(attachQueueId); + + assertTrue(attachQueue instanceof AbstractAttachQueue); + assertNull(attachQueue.getParent().getAttributes().get(AbstractAttachQueue.QUEUE_ID_ATTRIBUTE)); + } + + @Test + public void testAttachQueueWithNestedAjax() throws Exception { + buildView("/attachQueueWithNestedAjax.xhtml"); + + AjaxBehavior defaultEvent = getAjaxBehavior(":form:defaultEventText", null); + assertNotNull(defaultEvent); + assertEquals("form:defaultEventQueue", defaultEvent.getQueueId()); + + AjaxBehavior keyup = getAjaxBehavior(":form:keyupText", "keyup"); + assertNotNull(keyup); + assertEquals("form:keyupQueue", keyup.getQueueId()); + + checkNotAssignedToParent(":form:defaultEventQueue"); + checkNotAssignedToParent(":form:keyupQueue"); + } + + @Test + public void testAttachQueueWithParentComponent() throws Exception { + buildView("/attachQueueWithParentComponent.xhtml"); + + UIComponent link = viewRoot.findComponent(":form:link"); + assertEquals("form:attachQueue", link.getAttributes().get(AbstractAttachQueue.QUEUE_ID_ATTRIBUTE)); + } + + @Test + public void testAttachQueueWithWrappingAjax() throws Exception { + buildView("/attachQueueWithWrappingAjax.xhtml"); + + AjaxBehavior defaultEventInput = getAjaxBehavior(":form:defaultEventInput", null); + assertNotNull(defaultEventInput); + assertEquals("form:defaultEventQueue", defaultEventInput.getQueueId()); + + AjaxBehavior defaultEventLinkBehavior = getAjaxBehavior(":form:defaultEventLink", null); + assertNotNull(defaultEventLinkBehavior); + assertEquals("form:defaultEventQueue", defaultEventLinkBehavior.getQueueId()); + + AjaxBehavior valueChangeInput = getAjaxBehavior(":form:valueChangeInput", null); + assertNotNull(valueChangeInput); + assertEquals("form:valueChangeQueue", valueChangeInput.getQueueId()); + + AjaxBehavior valueChangeLink = getAjaxBehavior(":form:valueChangeLink", null); + assertNull(valueChangeLink); + + checkNotAssignedToParent(":form:defaultEventQueue"); + checkNotAssignedToParent(":form:valueChangeQueue"); + } + + @Test + public void testAttachQueueWithWrappingBehaviors() throws Exception { + buildView("/attachQueueWithWrappingBehaviors.xhtml"); + + AjaxBehavior input = getAjaxBehavior(":form:input", "click"); + assertNotNull(input); + assertEquals("form:clickQueue", input.getQueueId()); + + AjaxBehavior button = getAjaxBehavior(":form:button", "click"); + assertNotNull(button); + assertEquals("form:clickQueue", button.getQueueId()); + + AjaxBehavior nestedInputClick = getAjaxBehavior(":form:nestedInput", "click"); + assertNotNull(nestedInputClick); + assertEquals("form:clickQueue", nestedInputClick.getQueueId()); + + AjaxBehavior nestedInputChange = getAjaxBehavior(":form:nestedInput", "valueChange"); + assertNotNull(nestedInputChange); + assertEquals("form:valueChangeQueue", nestedInputChange.getQueueId()); + + AjaxBehavior nestedButtonClick = getAjaxBehavior(":form:nestedButton", "click"); + assertNotNull(nestedButtonClick); + assertEquals("form:clickQueue", nestedButtonClick.getQueueId()); + + checkNotAssignedToParent(":form:valueChangeQueue"); + checkNotAssignedToParent(":form:clickQueue"); + } +} Added: root/ui/trunk/components/core/src/test/resources/org/richfaces/view/facelets/html/attachQueueWithNestedAjax.xhtml =================================================================== --- root/ui/trunk/components/core/src/test/resources/org/richfaces/view/facelets/html/attachQueueWithNestedAjax.xhtml (rev 0) +++ root/ui/trunk/components/core/src/test/resources/org/richfaces/view/facelets/html/attachQueueWithNestedAjax.xhtml 2010-05-06 22:42:05 UTC (rev 16912) @@ -0,0 +1,20 @@ +<ui:composition xmlns="http://www.w3.org/1999/xhtml" + xmlns:ui="http://java.sun.com/jsf/facelets" + xmlns:h="http://java.sun.com/jsf/html" + xmlns:f="http://java.sun.com/jsf/core" + xmlns:a4j="http://richfaces.org/a4j"> + + <h:form id="form"> + <h:inputText id="defaultEventText"> + <a4j:ajax> + <a4j:attachQueue id="defaultEventQueue" /> + </a4j:ajax> + </h:inputText> + + <h:inputText id="keyupText"> + <a4j:ajax event="keyup"> + <a4j:attachQueue id="keyupQueue" /> + </a4j:ajax> + </h:inputText> + </h:form> +</ui:composition> \ No newline at end of file Added: root/ui/trunk/components/core/src/test/resources/org/richfaces/view/facelets/html/attachQueueWithParentComponent.xhtml =================================================================== --- root/ui/trunk/components/core/src/test/resources/org/richfaces/view/facelets/html/attachQueueWithParentComponent.xhtml (rev 0) +++ root/ui/trunk/components/core/src/test/resources/org/richfaces/view/facelets/html/attachQueueWithParentComponent.xhtml 2010-05-06 22:42:05 UTC (rev 16912) @@ -0,0 +1,13 @@ +<ui:composition xmlns="http://www.w3.org/1999/xhtml" + xmlns:ui="http://java.sun.com/jsf/facelets" + xmlns:h="http://java.sun.com/jsf/html" + xmlns:f="http://java.sun.com/jsf/core" + xmlns:a4j="http://richfaces.org/a4j"> + + <h:form id="form"> + <a4j:commandLink id="link"> + <a4j:attachQueue id="attachQueue" /> + </a4j:commandLink> + </h:form> + +</ui:composition> \ No newline at end of file Added: root/ui/trunk/components/core/src/test/resources/org/richfaces/view/facelets/html/attachQueueWithWrappingAjax.xhtml =================================================================== --- root/ui/trunk/components/core/src/test/resources/org/richfaces/view/facelets/html/attachQueueWithWrappingAjax.xhtml (rev 0) +++ root/ui/trunk/components/core/src/test/resources/org/richfaces/view/facelets/html/attachQueueWithWrappingAjax.xhtml 2010-05-06 22:42:05 UTC (rev 16912) @@ -0,0 +1,23 @@ +<ui:composition xmlns="http://www.w3.org/1999/xhtml" + xmlns:ui="http://java.sun.com/jsf/facelets" + xmlns:h="http://java.sun.com/jsf/html" + xmlns:f="http://java.sun.com/jsf/core" + xmlns:a4j="http://richfaces.org/a4j"> + + + <h:form id="form"> + <a4j:ajax> + <h:inputText id="defaultEventInput" /> + <h:commandLink id="defaultEventLink" /> + + <a4j:attachQueue id="defaultEventQueue" /> + </a4j:ajax> + + <a4j:ajax event="valueChange"> + <h:inputText id="valueChangeInput" /> + <h:commandLink id="valueChangeLink" /> + + <a4j:attachQueue id="valueChangeQueue" /> + </a4j:ajax> + </h:form> +</ui:composition> \ No newline at end of file Added: root/ui/trunk/components/core/src/test/resources/org/richfaces/view/facelets/html/attachQueueWithWrappingBehaviors.xhtml =================================================================== --- root/ui/trunk/components/core/src/test/resources/org/richfaces/view/facelets/html/attachQueueWithWrappingBehaviors.xhtml (rev 0) +++ root/ui/trunk/components/core/src/test/resources/org/richfaces/view/facelets/html/attachQueueWithWrappingBehaviors.xhtml 2010-05-06 22:42:05 UTC (rev 16912) @@ -0,0 +1,22 @@ +<ui:composition xmlns="http://www.w3.org/1999/xhtml" + xmlns:ui="http://java.sun.com/jsf/facelets" + xmlns:h="http://java.sun.com/jsf/html" + xmlns:f="http://java.sun.com/jsf/core" + xmlns:a4j="http://richfaces.org/a4j"> + + <h:form id="form"> + <a4j:ajax event="click"> + <a4j:attachQueue id="clickQueue" /> (1) + + <h:inputText id="input" /> + <h:commandButton id="button" /> "click" support applied there so (1) used + + <a4j:ajax event="valueChange"> + <a4j:attachQueue id="valueChangeQueue" /> (2) + + <h:inputText id="nestedInput" /> (2) used when "valueChange" occurs and (1) on click + <h:commandButton id="nestedButton" /> "click" support applied there so also (1) used + </a4j:ajax> + </a4j:ajax> + </h:form> +</ui:composition> \ No newline at end of file