Examples of com.sun.faces.context.StateContext

com.sun.faces.context.StateContext
Context for dealing with partial state saving mechanics.

            /*
             * Are we adding =BACK= in a component that was not in the state,
             * because it was added by the initial buildView and removed by
             * another dynamic action?
             */
            StateContext stateContext = StateContext.getStateContext(context);
            if (child == null) {
                child = stateContext.getDynamicComponents().get(struct.clientId);
            }


            /*
             * Now if we have the child we are going to add it back in.
             */
            if (child != null) {
                if (struct.facetName != null) {
                    parent.getFacets().put(struct.facetName, child);
                } else {
                    int childIndex = -1;
                    if (child.getAttributes().containsKey(DYNAMIC_COMPONENT)) {
                        childIndex = (Integer) child.getAttributes().get(DYNAMIC_COMPONENT);
                    }
                    child.setId(struct.id);
                    if (childIndex >= parent.getChildCount() || childIndex == -1) {
                        parent.getChildren().add(child);
                    } else {
                        parent.getChildren().add(childIndex, child);
                    }
                    child.getClientId();
                }
                child.getAttributes().put(DYNAMIC_COMPONENT, child.getParent().getChildren().indexOf(child));
                stateContext.getDynamicComponents().put(struct.clientId, child);
            }
        }
    }

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            LOGGER.finest("FaceletFullStateManagementStrategy.restoreDynamicRemove");
        }


        UIComponent child = locateComponentByClientId(context, context.getViewRoot(), struct.clientId);
        if (child != null) {
            StateContext stateContext = StateContext.getStateContext(context);
            stateContext.getDynamicComponents().put(struct.clientId, child);
            UIComponent parent = child.getParent();
            parent.getChildren().remove(child);
        }
    }

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                result = restoreTree(context, renderKitId, ((Object[]) state[0]).clone());
                context.setViewRoot(result);
            }


            if (result != null) {
                StateContext stateContext = StateContext.getStateContext(context);
                stateContext.startTrackViewModifications(context, result);
                stateContext.setTrackViewModifications(false);


                try {
                    HashMap<String, Object> stateMap = (HashMap<String, Object>) state[1];
                    if (stateMap != null) {
                        /*
                         * Restore the component state.
                         */
                        restoreComponentState(context, stateMap);


                        /**
                         * Restore the dynamic actions.
                         */
                        restoreDynamicActions(context, stateContext, stateMap);
                    }
                } finally {
                    stateContext.setTrackViewModifications(true);
                }
            }
        }


        return result;

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     * @return the saved state.
     */
    private Object saveComponentState(FacesContext context) {


        final HashMap<String, Object> stateMap = new HashMap<String, Object>();
        final StateContext stateContext = StateContext.getStateContext(context);
        final UIViewRoot viewRoot = context.getViewRoot();
        final FacesContext finalContext = context;


        context.getAttributes().put(SKIP_ITERATION_HINT, true);
        Set<VisitHint> hints = EnumSet.of(VisitHint.SKIP_ITERATION);
        VisitContext visitContext = VisitContext.createVisitContext(context, null, hints);


        try {
            viewRoot.visitTree(visitContext, new VisitCallback() {


                public VisitResult visit(VisitContext context, UIComponent component) {
                    VisitResult result = VisitResult.ACCEPT;
                    Object stateObj;
                    if (!component.isTransient()) {
                        if (stateContext.componentAddedDynamically(component)) {
                            component.getAttributes().put(DYNAMIC_COMPONENT, new Integer(getProperChildIndex(component)));
                            stateObj = new StateHolderSaver(finalContext, component);
                        } else {
                            stateObj = component.saveState(finalContext);
                        }

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        Util.checkIdUniqueness(context, viewRoot, new HashSet<String>(viewRoot.getChildCount() << 1));


        /**
         * Save the dynamic actions.
         */
        StateContext stateContext = StateContext.getStateContext(context);
        saveDynamicActions(context, stateContext, viewRoot);


        /*
         * Save the component state.
         */

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        popComponentFromEL(ctx, c, ccStackManager, compcompPushed);
    }


    private void adjustIndexOfDynamicChildren(FacesContext context, 
            UIComponent parent) {
        StateContext stateContext = StateContext.getStateContext(context);
        if (!stateContext.hasOneOrMoreDynamicChild(parent)) {
            return;
        }


        List<UIComponent> children = parent.getChildren();
        List<UIComponent> dynamicChildren = Collections.emptyList();


        for (UIComponent cur : children) {
            if (stateContext.componentAddedDynamically(cur)) {
                if (dynamicChildren.isEmpty()) {
                    dynamicChildren = new ArrayList<UIComponent>(children.size());
                }
                dynamicChildren.add(cur);
            }
        }
        
        // First remove all the dynamic children, this puts the non-dynamic children at
        // their original position 
        for (UIComponent cur : dynamicChildren) {
            int i = stateContext.getIndexOfDynamicallyAddedChildInParent(cur);
            if (-1 != i) {
                children.remove(cur);
            }
        }
        
        // Now that the non-dynamic children are in the correct position add the dynamic children
        // back in.
        for (UIComponent cur : dynamicChildren) {
            int i = stateContext.getIndexOfDynamicallyAddedChildInParent(cur);
            if (-1 != i) {
                if (i < children.size()) {
                    children.add(i, cur);
                } else {
                    children.add(cur);

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        // no need to suppress events at that time
        UIViewRoot root = ctx.getViewRoot();
        if (root != null) {
            String viewId = root.getViewId();
            if (viewId != null) {
                StateContext stateCtx = StateContext.getStateContext(ctx);
                return stateCtx.isPartialStateSaving(ctx, viewId);
            }
        }
        return false;


    }

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    @Override
    public StateManagementStrategy getStateManagementStrategy(FacesContext context, String viewId) {
        StateManagementStrategy result;
        
        StateContext stateCtx = StateContext.getStateContext(context);
        if (stateCtx.isPartialStateSaving(context, viewId)) {
            result = new FaceletPartialStateManagementStrategy(context);
        } else {
            result = new FaceletFullStateManagementStrategy(context);
        }

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                throw new FacesException(ioe);
            }
        }


        UIViewRoot root = super.restoreView(context, viewId);        
        StateContext stateCtx = StateContext.getStateContext(context);
        stateCtx.startTrackViewModifications(context, root);
        
        return root;
    }

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     * @throws IOException if an error occurs building the view.
     */
    @Override
    public void buildView(FacesContext ctx, UIViewRoot view)
    throws IOException {
        StateContext stateCtx = StateContext.getStateContext(ctx);
        if (Util.isViewPopulated(ctx, view)) {
            Facelet f = faceletFactory.getFacelet(view.getViewId());
            // Disable events from being intercepted by the StateContext by
            // virute of re-applying the handlers. 
            try {
                stateCtx.setTrackViewModifications(false);
                f.apply(ctx, view);
                reapplyDynamicActions(ctx);
                if (stateCtx.isPartialStateSaving(ctx, view.getViewId())) {
                    markInitialStateIfNotMarked(view);
                }
            } finally {
                stateCtx.setTrackViewModifications(true);
            }
            return;
        }


        view.setViewId(view.getViewId());


        if (LOGGER.isLoggable(Level.FINE)) {
            LOGGER.fine("Building View: " + view.getViewId());
        }
        if (faceletFactory == null) {
            ApplicationAssociate associate = ApplicationAssociate.getInstance(ctx.getExternalContext());
            faceletFactory = associate.getFaceletFactory();
            assert (faceletFactory != null);
        }
        RequestStateManager.set(ctx,
                                RequestStateManager.FACELET_FACTORY,
                                faceletFactory);
        Facelet f = faceletFactory.getFacelet(view.getViewId());


        // populate UIViewRoot
        try {
            ctx.getAttributes().put(IS_BUILDING_INITIAL_STATE, Boolean.TRUE);
            stateCtx.setTrackViewModifications(false);
            f.apply(ctx, view);
            
            if (f instanceof XMLFrontMatterSaver) {
                XMLFrontMatterSaver frontMatterSaver = (XMLFrontMatterSaver) f;
                String DOCTYPE = frontMatterSaver.getSavedDoctype();
                if (null != DOCTYPE) {
                    Util.saveDOCTYPEToFacesContextAttributes(DOCTYPE);
                }
                String XMLDECL = frontMatterSaver.getSavedXMLDecl();
                if (null != XMLDECL) {
                    Util.saveXMLDECLToFacesContextAttributes(XMLDECL);
                }
            }
            
            if (!stateCtx.isPartialStateSaving(ctx, view.getViewId())) {
                reapplyDynamicActions(ctx);
            }
            
            doPostBuildActions(ctx, view);
        } finally {

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Related Classes of com.sun.faces.context.StateContext

com.sun.faces.application.ApplicationAssociate

com.sun.faces.application.ApplicationStateInfo

com.sun.faces.application.view.FaceletFullStateManagementStrategy

com.sun.faces.application.view.FaceletPartialStateManagementStrategy

com.sun.faces.application.view.FaceletViewHandlingStrategy

com.sun.faces.application.view.StateManagementStrategyImpl

com.sun.faces.facelets.tag.jsf.ComponentSupport

com.sun.faces.facelets.tag.jsf.ComponentTagHandlerDelegateImpl

com.sun.faces.util.ComponentStruct

java.util.Map

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