org.openmdx.kernel.lightweight.sql.LightweightACConnection Maven / Gradle / Ivy
/*
* ====================================================================
* Project: openMDX, http://www.openmdx.org/
* Description: Lightweight auto-committing connection
* Owner: OMEX AG, Switzerland, http://www.omex.ch
* ====================================================================
*
* This software is published under the BSD license as listed below.
*
* Copyright (c) 2016, OMEX AG, Switzerland
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
*
* * Neither the name of the openMDX team nor the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
* CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES,
* INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED
* TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
* ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*
* ------------------
*
* This product includes software developed by other organizations as
* listed in the NOTICE file.
*/
package org.openmdx.kernel.lightweight.sql;
import java.sql.Connection;
import java.sql.SQLException;
/**
* Lightweight auto-committing connection
*/
class LightweightACConnection extends LightweightPooledConnection {
/**
* Constructor
*/
LightweightACConnection(
Connection managedConnection
){
super(managedConnection);
}
private Connection handle;
@Override
protected void connectionClosed(Connection handle){
if(this.handle == handle) {
this.handle = null;
fireCloseEvent();
} else {
fireErrorEvent(
newSQLException("The handle is not associated with this pooled connection")
);
}
}
private SQLException newSQLException(String message) {
return new SQLException(getClass().getName() + ": " + message);
}
// ------------------------------------------------------------------------
// Implements ValidatablePooledConnection
// ------------------------------------------------------------------------
/* (non-Javadoc)
* @see org.openmdx.kernel.lightweight.sql.ValidatablePooledConnection#passivate()
*/
@Override
public void passivate() throws SQLException {
if(this.handle != null) {
throw newSQLException("The managed connection is still associated with a connection");
}
}
@Override
public Connection getConnection() throws SQLException {
if(isAssociated()) {
throw newSQLException("Another handle is already associated with this pooled connection");
}
return this.handle = super.getConnection();
}
private boolean isAssociated() {
return this.handle != null;
}
}