org.apache.openjpa.ee.ManagedRuntime Maven / Gradle / Ivy
/*
* 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.openjpa.ee;
import javax.transaction.NotSupportedException;
import javax.transaction.SystemException;
import javax.transaction.TransactionManager;
/**
* This interface must be implemented by concrete plugins to application
* servers in order to integrate the OpenJPA runtime in a managed environment.
*
* @author Abe White
*/
public interface ManagedRuntime {
/**
* Return the TransactionManager for the managed runtime. This
* manager is used to register synchronization listeners, to
* map transactional PersistenceManagers to the current transaction,
* and possibly to enlist XA resources.
*/
TransactionManager getTransactionManager()
throws Exception;
/**
* Sets the rollback only flag on the current transaction. If the
* TransactionManager is capable of tracking the cause of the
* rollback-only flag, it will also pass along cause information.
*
* @param cause the Throwable that caused the transaction to be
* marked for rollback, or null of none is known
*/
void setRollbackOnly(Throwable cause)
throws Exception;
/**
* Returns the Throwable that caused the current transaction to be
* marked for rollback, provided that any exists.
*
* @return the Throwable cause, or null if none
*/
Throwable getRollbackCause()
throws Exception;
/**
* Returns a transaction key that can be used to associate transactions
* and Brokers.
* @return the transaction key
*/
Object getTransactionKey()
throws Exception, SystemException;
/**
*
* Do a unit of work which will execute outside of the current managed
* transaction.
*
*
* If the runnable object encounters an exception it should be wrapped in a
* RuntimeException and thrown back to the caller
*
*
* @param runnable
* The runnable wrapper for the work that will be done. The
* runnable object should be fully initialized with any state
* needed to execute.
*
* @throws NotSupportedException
* if the transaction can not be suspended.
*/
void doNonTransactionalWork(Runnable runnable)
throws NotSupportedException;
}