/* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.activiti.engine.impl.bpmn.listener;
import org.activiti.engine.delegate.DelegateExecution;
import org.activiti.engine.delegate.ExecutionListener;
import org.activiti.engine.delegate.Expression;
/**
* An {@link ExecutionListener} that evaluates a {@link Expression} when notified.
*
* @author Frederik Heremans
*/
public class ExpressionExecutionListener implements ExecutionListener {
protected Expression expression;
public ExpressionExecutionListener(Expression expression) {
this.expression = expression;
}
public void notify(DelegateExecution execution) throws Exception {
// Return value of expression is ignored
expression.getValue(execution);
}
/**
* returns the expression text for this execution listener. Comes in handy if you want to
* check which listeners you already have.
*/
public String getExpressionText() {
return expression.getExpressionText();
}
}