1 /**
2 * Copyright 2005-2016 The Kuali Foundation
3 *
4 * Licensed under the Educational Community License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 * http://www.opensource.org/licenses/ecl2.php
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16 package org.kuali.rice.krad.uif.lifecycle.model;
17
18 import org.kuali.rice.krad.uif.component.Component;
19 import org.kuali.rice.krad.uif.lifecycle.LifecycleElementState;
20 import org.kuali.rice.krad.uif.lifecycle.ViewLifecyclePhase;
21 import org.kuali.rice.krad.uif.lifecycle.ViewLifecycleTaskBase;
22
23 /**
24 * Perform post-expression evaluation tasks.
25 *
26 * <p>
27 * This task is used for optimization in core KRAD features. Since expression evaluation can be
28 * heavy, common behavior defined as expressions in delivered UIF components can be moved to this
29 * task in order to handle evaluation in code instead.
30 * </p>
31 *
32 * @author Kuali Rice Team (rice.collab@kuali.org)
33 */
34 public class AfterEvaluateExpressionTask extends ViewLifecycleTaskBase<Component> {
35
36 /**
37 * Create a task to assign component IDs during the apply model phase.
38 *
39 * @param phase The apply model phase for the component.
40 */
41 public AfterEvaluateExpressionTask() {
42 super(Component.class);
43 }
44
45 /**
46 * {@inheritDoc}
47 */
48 @Override
49 protected void performLifecycleTask() {
50 LifecycleElementState elementState = getElementState();
51 if (!(elementState instanceof ViewLifecyclePhase)) {
52 return;
53 }
54
55 ViewLifecyclePhase phase = (ViewLifecyclePhase) elementState;
56 Component component = (Component) phase.getElement();
57 component.afterEvaluateExpression();
58 }
59
60 }