Examples of javax.faces.component.visit.VisitCallback

javax.faces.component.visit.VisitCallback

A simple callback interface that enables taking action on a specific UIComponent (either facet or child) during a component tree visit.
@author Simon Lessard (latest modification by $Author: bommel $) @version $Revision: 1187700 $ $Date: 2011-10-22 14:19:37 +0200 (Sat, 22 Oct 2011) $ @since 2.0

    {
        if (command instanceof HtmlCommandButton)
        {
            UIForm form = getParentForm(command);
            VisitContext visitContext = VisitContext.createVisitContext(facesContext);
            form.visitTree(visitContext, new VisitCallback(){


                public VisitResult visit(VisitContext context,
                        UIComponent target)
                {
                    if (target instanceof UIInput)

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            final UIViewRoot uiViewRoot)
    {
        facesContext.getAttributes().put(SKIP_ITERATION_HINT, Boolean.TRUE);
        try
        {
            uiViewRoot.visitTree( VisitContext.createVisitContext (facesContext), new VisitCallback()
            {
                public VisitResult visit(VisitContext context, UIComponent target)
                {
                    FacesContext facesContext = context.getFacesContext();
                    Object state;

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    {
        facesContext.getAttributes().put(SKIP_ITERATION_HINT, Boolean.TRUE);
        try
        {
            uiViewRoot.visitTree( getVisitContextFactory().getVisitContext(
                    facesContext, null, null), new VisitCallback()
            {
                public VisitResult visit(VisitContext context, UIComponent target)
                {
                    FacesContext facesContext = context.getFacesContext();
                    Object state;

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    {
        facesContext.getAttributes().put(SKIP_ITERATION_HINT, Boolean.TRUE);
        try
        {
            uiViewRoot.visitTree( getVisitContextFactory().getVisitContext(
                    facesContext, null, VISIT_HINTS), new VisitCallback()
            {
                public VisitResult visit(VisitContext context, UIComponent target)
                {
                    FacesContext facesContext = context.getFacesContext();
                    Object state;

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    {
        if (command instanceof HtmlCommandButton)
        {
            UIForm form = getParentForm(command);
            VisitContext visitContext = VisitContext.createVisitContext(facesContext);
            form.visitTree(visitContext, new VisitCallback(){


                public VisitResult visit(VisitContext context,
                        UIComponent target)
                {
                    if (target instanceof UIInput)

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    {
        if (command instanceof HtmlCommandButton)
        {
            UIForm form = getParentForm(command);
            VisitContext visitContext = VisitContext.createVisitContext(facesContext);
            form.visitTree(visitContext, new VisitCallback(){


                public VisitResult visit(VisitContext context,
                        UIComponent target)
                {
                    if (target instanceof UIInput)

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        child1.getChildren().add(childOfChild1);
        uidata.getChildren().add(child1);
        // second child (should not be processed --> != UIColumn)
        UIComponent child2 = new HtmlPanelGroup(); 
        uidata.getChildren().add(child2);
        VisitCallback callback = null;
        
        IMocksControl control = EasyMock.createControl();
        VisitContext visitContextMock = control.createMock(VisitContext.class);
        EasyMock.expect(visitContextMock.getFacesContext()).andReturn(facesContext).anyTimes();
        EasyMock.expect(visitContextMock.getHints()).andReturn(Collections.<VisitHint>emptySet()).anyTimes();

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    {
        facesContext.getAttributes().put(SKIP_ITERATION_HINT, Boolean.TRUE);
        try
        {
            uiViewRoot.visitTree( getVisitContextFactory().getVisitContext(
                    facesContext, null, VISIT_HINTS), new VisitCallback()
            {
                public VisitResult visit(VisitContext context, UIComponent target)
                {
                    FacesContext facesContext = context.getFacesContext();
                    Object state;

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            // during state saving.  It should be removed at some point.
            facesContext.getAttributes().put(SKIP_ITERATION_HINT, true);


            Set<VisitHint> hints = EnumSet.of(VisitHint.SKIP_ITERATION);
            VisitContext visitContext = VisitContext.createVisitContext(facesContext, null, hints);
            root.visitTree(visitContext, new VisitCallback() {


                        public VisitResult visit(VisitContext context, UIComponent target) {
                            postRestoreStateEvent.setComponent(target);
                            target.processEvent(postRestoreStateEvent);
                            //noinspection ReturnInsideFinallyBlock

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            // do per-component actions
            UIViewRoot root = facesContext.getViewRoot();
            final PostRestoreStateEvent event = new PostRestoreStateEvent(root);
            try {
                root.visitTree(VisitContext.createVisitContext(facesContext),
                        new VisitCallback() {


                    public VisitResult visit(VisitContext context, UIComponent target) {
                        event.setComponent(target);
                        target.processEvent(event);
                        return VisitResult.ACCEPT;

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