1 /*
2 * Licensed to the Apache Software Foundation (ASF) under one
3 * or more contributor license agreements. See the NOTICE file
4 * distributed with this work for additional information
5 * regarding copyright ownership. The ASF licenses this file
6 * to you under the Apache License, Version 2.0 (the
7 * "License"); you may not use this file except in compliance
8 * with the License. You may obtain a copy of the License at
9 *
10 * http://www.apache.org/licenses/LICENSE-2.0
11 *
12 * Unless required by applicable law or agreed to in writing,
13 * software distributed under the License is distributed on an
14 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
15 * KIND, either express or implied. See the License for the
16 * specific language governing permissions and limitations
17 * under the License.
18 */
19
20 package org.apache.myfaces.tobago.util;
21
22 import org.apache.myfaces.tobago.context.ClientProperties;
23
24 import javax.faces.application.Application;
25 import javax.faces.context.FacesContext;
26 import javax.faces.el.ValueBinding;
27 import javax.faces.el.VariableResolver;
28
29 /**
30 * @deprecated Please use VariableResolverUtils
31 */
32 @Deprecated
33 public final class VariableResolverUtil {
34
35 private VariableResolverUtil() {
36 // utils class
37 }
38
39 /**
40 * Returns the requested object configured in the faces-config or from library.
41 */
42 public static Object resolveVariable(FacesContext context, String variable) {
43 Application application = context.getApplication();
44 VariableResolver variableResolver = application.getVariableResolver();
45 return variableResolver.resolveVariable(context, variable);
46 }
47
48 /**
49 * Returns the ClientProperties object configured in the faces-config.
50 */
51 public static ClientProperties resolveClientProperties(FacesContext facesContext) {
52 return (ClientProperties) resolveVariable(facesContext, ClientProperties.MANAGED_BEAN_NAME);
53 }
54
55 /**
56 * Clears the value of the variable.
57 * Useful for cleaning up e.g. a session or application variable
58 * to save memory without the knowledge of the scope.
59 * Also useful to enforce a new creation of a managed-bean.
60 */
61 public static void clearVariable(FacesContext context, String variable) {
62 Application application = context.getApplication();
63 ValueBinding valueBinding = application.createValueBinding("#{" + variable + "}");
64 valueBinding.setValue(context, null);
65 }
66 }