001/**
002 * Copyright 2005-2018 The Kuali Foundation
003 *
004 * Licensed under the Educational Community License, Version 2.0 (the "License");
005 * you may not use this file except in compliance with the License.
006 * You may obtain a copy of the License at
007 *
008 * http://www.opensource.org/licenses/ecl2.php
009 *
010 * Unless required by applicable law or agreed to in writing, software
011 * distributed under the License is distributed on an "AS IS" BASIS,
012 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
013 * See the License for the specific language governing permissions and
014 * limitations under the License.
015 */
016package org.kuali.rice.krad.uif.lifecycle.model;
017
018import org.kuali.rice.krad.uif.component.Component;
019import org.kuali.rice.krad.uif.lifecycle.LifecycleElementState;
020import org.kuali.rice.krad.uif.lifecycle.ViewLifecyclePhase;
021import org.kuali.rice.krad.uif.lifecycle.ViewLifecycleTaskBase;
022
023/**
024 * Perform post-expression evaluation tasks.
025 * 
026 * <p>
027 * This task is used for optimization in core KRAD features. Since expression evaluation can be
028 * heavy, common behavior defined as expressions in delivered UIF components can be moved to this
029 * task in order to handle evaluation in code instead.
030 * </p>
031 * 
032 * @author Kuali Rice Team (rice.collab@kuali.org)
033 */
034public class AfterEvaluateExpressionTask extends ViewLifecycleTaskBase<Component> {
035
036    /**
037     * Create a task to assign component IDs during the apply model phase.
038     * 
039     * @param phase The apply model phase for the component.
040     */
041    public AfterEvaluateExpressionTask() {
042        super(Component.class);
043    }
044
045    /**
046     * {@inheritDoc}
047     */
048    @Override
049    protected void performLifecycleTask() {
050        LifecycleElementState elementState = getElementState();
051        if (!(elementState instanceof ViewLifecyclePhase)) {
052            return;
053        }
054        
055        ViewLifecyclePhase phase = (ViewLifecyclePhase) elementState;
056        Component component = (Component) phase.getElement();
057        component.afterEvaluateExpression();
058    }
059
060}