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// **********************************************************************
//
// Copyright (c) 2001
// Mutable Realms, Inc.
// Huntsville, AL, USA
//
// All Rights Reserved
//
// **********************************************************************
package Freeze;
class DBTransactionI extends Ice.LocalObjectImpl implements DBTransaction
{
public synchronized void
commit()
{
if(_tid == null)
{
String s = _errorPrefix + "transaction has already been committed or aborted";
DBException ex = new DBException();
ex.message = s;
throw ex;
}
if(_trace >= 2)
{
_communicator.getLogger().trace("DB", "committing transaction for environment \"" + _name + "\"");
}
try
{
_tid.commit(0);
}
catch(com.sleepycat.db.DbDeadlockException e)
{
DBDeadlockException ex = new DBDeadlockException();
ex.initCause(e);
ex.message = _errorPrefix + "DbTxn.commit: " + e.getMessage();
throw ex;
}
catch(com.sleepycat.db.DbException e)
{
DBException ex = new DBException();
ex.initCause(e);
ex.message = _errorPrefix + "DbTxn.commit: " + e.getMessage();
throw ex;
}
_tid = null;
}
public synchronized void
abort()
{
if(_tid == null)
{
String s = _errorPrefix + "transaction has already been committed or aborted";
DBException ex = new DBException();
ex.message = s;
throw ex;
}
if(_trace >= 2)
{
_communicator.getLogger().trace("DB", "aborting transaction for environment \"" + _name +
"\" due to deadlock");
}
try
{
_tid.abort();
}
catch(com.sleepycat.db.DbException e)
{
DBException ex = new DBException();
ex.initCause(e);
ex.message = _errorPrefix + "DbTxn.abort: " + e.getMessage();
throw ex;
}
_tid = null;
}
DBTransactionI(Ice.Communicator communicator, com.sleepycat.db.DbEnv dbEnv, String name)
{
_communicator = communicator;
_name = name;
_errorPrefix = "Freeze::DBTransaction(\"" + _name + "\"): ";
_trace = _communicator.getProperties().getPropertyAsInt("Freeze.Trace.DB");
if(_trace >= 2)
{
_communicator.getLogger().trace("DB", "starting transaction for environment \"" + _name + "\"");
}
try
{
_tid = dbEnv.txn_begin(null, 0);
}
catch(com.sleepycat.db.DbException e)
{
DBException ex = new DBException();
ex.initCause(e);
ex.message = _errorPrefix + "DbEnv.txn_begin: " + e.getMessage();
throw ex;
}
}
private Ice.Communicator _communicator;
private int _trace = 0;
private com.sleepycat.db.DbTxn _tid;
private String _name;
private String _errorPrefix;
}
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