bitronix.tm.resource.jdbc.proxy.LrcConnectionJavaProxy Maven / Gradle / Ivy
/*
* Copyright (C) 2006-2013 Bitronix Software (http://www.bitronix.be)
*
* 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 bitronix.tm.resource.jdbc.proxy;
import bitronix.tm.resource.jdbc.lrc.LrcXAResource;
import java.lang.reflect.Method;
import java.sql.Connection;
import java.sql.SQLException;
import java.sql.Savepoint;
import java.util.Map;
/**
* @author Brett Wooldridge
*/
public class LrcConnectionJavaProxy
extends JavaProxyBase
{
private static final Map selfMethodMap = createMethodMap(LrcConnectionJavaProxy.class);
private final LrcXAResource xaResource;
/**
* Constructor LrcConnectionJavaProxy creates a new LrcConnectionJavaProxy instance.
*
* @param xaResource
* of type LrcXAResource
* @param connection
* of type Connection
*/
public LrcConnectionJavaProxy(LrcXAResource xaResource, Connection connection)
{
this.delegate = connection;
this.xaResource = xaResource;
}
/**
* Method toString ...
*
* @return String
*/
@Override
public String toString()
{
return "a JDBC LrcConnectionJavaProxy on " + delegate;
}
/* wrapped Connection methods that have special XA semantics */
/**
* Method close ...
*
* @throws SQLException
* when
*/
public void close() throws SQLException
{
if (delegate != null)
{
delegate.close();
}
delegate = null;
}
/**
* Method isClosed returns the closed of this LrcConnectionJavaProxy object.
*
* @return the closed (type boolean) of this LrcConnectionJavaProxy object.
*/
public boolean isClosed()
{
return delegate == null;
}
/**
* Method setAutoCommit sets the autoCommit of this LrcConnectionJavaProxy object.
*
* @param autoCommit
* the autoCommit of this LrcConnectionJavaProxy object.
*
* @throws SQLException
* when
*/
public void setAutoCommit(boolean autoCommit) throws SQLException
{
if (xaResource.getState() != LrcXAResource.NO_TX && autoCommit)
{
throw new SQLException("XA transaction started, cannot enable autocommit mode");
}
delegate.setAutoCommit(autoCommit);
}
/**
* Method commit ...
*
* @throws SQLException
* when
*/
public void commit() throws SQLException
{
if (xaResource.getState() != LrcXAResource.NO_TX)
{
throw new SQLException("XA transaction started, cannot call commit directly on connection");
}
delegate.commit();
}
/**
* Method rollback ...
*
* @throws SQLException
* when
*/
public void rollback() throws SQLException
{
if (xaResource.getState() != LrcXAResource.NO_TX)
{
throw new SQLException("XA transaction started, cannot call rollback directly on connection");
}
delegate.rollback();
}
/**
* Method rollback ...
*
* @param savepoint
* of type Savepoint
*
* @throws SQLException
* when
*/
public void rollback(Savepoint savepoint) throws SQLException
{
if (xaResource.getState() != LrcXAResource.NO_TX)
{
throw new SQLException("XA transaction started, cannot call rollback directly on connection");
}
delegate.rollback(savepoint);
}
/* java.sql.Wrapper implementation */
/**
* Method unwrap ...
*
* @param iface
* of type Class T
*
* @return T
*
* @throws SQLException
* when
*/
@SuppressWarnings("unchecked")
public T unwrap(Class iface) throws SQLException
{
if (iface.isAssignableFrom(delegate.getClass()))
{
return (T) delegate;
}
if (isWrapperFor(iface))
{
return unwrap(delegate, iface);
}
throw new SQLException(getClass().getName() + " is not a wrapper for " + iface);
}
/**
* Method isWrapperFor ...
*
* @param iface
* of type Class ?
*
* @return boolean
*/
public boolean isWrapperFor(Class iface)
{
return iface.isAssignableFrom(delegate.getClass()) || isWrapperFor(delegate, iface);
}
/* Overridden methods of JavaProxyBase */
/**
* Method getMethodMap returns the methodMap of this LrcConnectionJavaProxy object.
*
* @return the methodMap (type Map String, Method ) of this LrcConnectionJavaProxy object.
*/
@Override
protected Map getMethodMap()
{
return selfMethodMap;
}
}