/* 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.test.bpmn.event.compensate.helper;
import org.activiti.engine.delegate.DelegateExecution;
import org.activiti.engine.delegate.Expression;
import org.activiti.engine.delegate.JavaDelegate;
/**
* @author Daniel Meyer
*/
public class UndoService implements JavaDelegate {
private Expression counterName;
public void execute(DelegateExecution execution) throws Exception {
String variableName = (String) counterName.getValue(execution);
Object variable = execution.getVariable(variableName);
if(variable == null) {
execution.setVariable(variableName, (Integer) 1);
}
else {
execution.setVariable(variableName, ((Integer)variable)+1);
}
}
}