/* 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.camunda.bpm.engine.spring;
import org.camunda.bpm.engine.impl.interceptor.Command;
import org.camunda.bpm.engine.impl.interceptor.CommandInterceptor;
import org.springframework.transaction.PlatformTransactionManager;
import org.springframework.transaction.TransactionStatus;
import org.springframework.transaction.support.TransactionCallback;
import org.springframework.transaction.support.TransactionTemplate;
/**
* @author Dave Syer
* @author Tom Baeyens
*/
public class SpringTransactionInterceptor extends CommandInterceptor {
protected PlatformTransactionManager transactionManager;
protected int transactionPropagation;
public SpringTransactionInterceptor(PlatformTransactionManager transactionManager, int transactionPropagation) {
this.transactionManager = transactionManager;
this.transactionPropagation = transactionPropagation;
}
@SuppressWarnings("unchecked")
public <T> T execute(final Command<T> command) {
TransactionTemplate transactionTemplate = new TransactionTemplate(transactionManager);
transactionTemplate.setPropagationBehavior(transactionPropagation);
T result = (T) transactionTemplate.execute(new TransactionCallback() {
public Object doInTransaction(TransactionStatus status) {
return next.execute(command);
}
});
return result;
}
}