/*
* 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.jdbi.v3.core.transaction;
import java.sql.SQLException;
import org.jdbi.v3.core.Handle;
import org.jdbi.v3.core.HandleCallback;
Handler designed to behave properly in a J2EE CMT environment. It will never
explicitly begin or commit a transaction, and will throw a runtime exception
when rollback is called to force rollback.
/**
* Handler designed to behave properly in a J2EE CMT environment. It will never
* explicitly begin or commit a transaction, and will throw a runtime exception
* when rollback is called to force rollback.
*/
public class CMTTransactionHandler implements TransactionHandler {
Called when a transaction is started
/**
* Called when a transaction is started
*/
@Override
public void begin(Handle handle) {
// noop
}
Called when a transaction is committed
/**
* Called when a transaction is committed
*/
@Override
public void commit(Handle handle) {
// noop
}
Called when a transaction is rolled back
Will throw a RuntimeException to force transactional rollback
/**
* Called when a transaction is rolled back
* Will throw a RuntimeException to force transactional rollback
*/
@Override
public void rollback(Handle handle) {
throw new TransactionException("Rollback called, this runtime exception thrown to halt the transaction");
}
Savepoints are not supported.
/**
* Savepoints are not supported.
*/
@Override
public void rollbackToSavepoint(Handle handle, String name) {
throw new UnsupportedOperationException("Savepoints not supported");
}
Called to test if a handle is in a transaction
/**
* Called to test if a handle is in a transaction
*/
@Override
public boolean isInTransaction(Handle handle) {
try {
return !handle.getConnection().getAutoCommit();
} catch (SQLException e) {
throw new TransactionException("Failed to check status of transaction", e);
}
}
Savepoints are not supported.
/**
* Savepoints are not supported.
*/
@Override
public void savepoint(Handle handle, String name) {
throw new UnsupportedOperationException("Savepoints not supported");
}
Savepoints are not supported.
/**
* Savepoints are not supported.
*/
@Override
public void releaseSavepoint(Handle handle, String savepointName) {
throw new UnsupportedOperationException("Savepoints not supported");
}
@Override
public <R, X extends Exception> R inTransaction(Handle handle,
HandleCallback<R, X> callback) throws X {
return callback.withHandle(handle);
}
@Override
public <R, X extends Exception> R inTransaction(Handle handle,
TransactionIsolationLevel level,
HandleCallback<R, X> callback) throws X {
return inTransaction(handle, callback);
}
}