org.camunda.bpm.engine.impl.tree.LeafActivityInstanceExecutionCollector Maven / Gradle / Ivy
/*
* Copyright Camunda Services GmbH and/or licensed to Camunda Services GmbH
* under one or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information regarding copyright
* ownership. Camunda licenses this file to you under the Apache License,
* Version 2.0; 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.camunda.bpm.engine.impl.tree;
import java.util.ArrayList;
import java.util.List;
import org.camunda.bpm.engine.impl.pvm.runtime.LegacyBehavior;
import org.camunda.bpm.engine.impl.pvm.runtime.PvmExecutionImpl;
/**
* Collects executions that execute an activity instance that is a leaf in the activity instance tree.
* Typically, such executions are also leaves in the execution tree. The exception to this are compensation-throwing
* executions: Their activities are leaves but they have child executions responsible for compensation handling.
*
* @author Thorben Lindhauer
*
*/
public class LeafActivityInstanceExecutionCollector implements TreeVisitor {
protected List leaves = new ArrayList();
public void visit(PvmExecutionImpl obj) {
if (obj.getNonEventScopeExecutions().isEmpty() || (obj.getActivity() != null && !LegacyBehavior.hasInvalidIntermediaryActivityId(obj))) {
leaves.add(obj);
}
}
public List getLeaves() {
return leaves;
}
}