org.apache.openejb.core.transaction.TxSupports Maven / Gradle / Ivy
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* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You 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.apache.openejb.core.transaction;
import javax.transaction.Transaction;
import javax.transaction.TransactionManager;
import org.apache.openejb.SystemException;
/**
* 17.6.2.3 Supports
*
* The Container invokes an enterprise Bean method whose transaction attribute
* is set to Supports as follows.
*
* If the client calls with a transaction context, the Container performs the
* same steps as described in the Required case.
*
* If the client calls without a transaction context, the Container performs the
* same steps as described in the NotSupported case.
*
* The Supports transaction attribute must be used with caution. This is because
* of the different transactional semantics provided by the two possible modes
* of execution. Only the enterprise beans that will execute correctly in both
* modes should use the Supports transaction attribute.
*/
public class TxSupports extends JtaTransactionPolicy {
private final Transaction clientTx;
public TxSupports(TransactionManager transactionManager) throws SystemException {
super(TransactionType.Supports, transactionManager);
clientTx = getTransaction();
}
public boolean isNewTransaction() {
return false;
}
public boolean isClientTransaction() {
return clientTx != null;
}
public Transaction getCurrentTransaction() {
return clientTx;
}
public void commit() {
fireNonTransactionalCompletion();
}
}