/*!
  @header FTTransactionContext
  @abstract Module of FT
 
  @availability OS X, GNUstep
  @copyright 2004, 2005, 2006 Free Software Foundation, Inc.
  
  This library is free software; you can redistribute it and/or
  modify it under the terms of the GNU Lesser General Public
  License as published by the Free Software Foundation; either
  version 2.1 of the License, or (at your option) any later version.

  This library is distributed in the hope that it will be useful,
  but WITHOUT ANY WARRANTY; without even the implied warranty of
  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  Lesser General Public License for more details.

  You should have received a copy of the GNU Lesser General Public
  License along with this library; if not, write to the Free Software
  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301 USA

  <pre>
  -------------------------------------------------------------------------
  Modification history

  12.05.05 ola     initial version
  23.08.06 ola     license changed
  -------------------------------------------------------------------------
  </pre>
*/

#include <FT/FTTransactionContext.h>
#include <Encore/Encore.h>

@implementation FTTransactionContext

- init {
  self = [super init];
  
  self->contextData = [[NSMutableDictionary alloc] init];
  
  return self;
}


- (void) dealloc {
  if( nil != self->contextData ) {
    [self->contextData release];
  }
  
  [super dealloc];
}


- addObject: (id) anObject forKey: (id) keyOfObject {
  if( nil != [self->contextData objectForKey: keyOfObject] ) {
    /* object already exists */
    ECAlreadyExistsException *ex = [[ECAlreadyExistsException alloc]
      initWithResourceInformation: @"Specified key is already in use!" ];
      
    [ex raise];
  }
  
  [self->contextData setObject: anObject forKey: keyOfObject];
  
  return self;
}


- objectForKey: (id) keyOfObject {
  return [self->contextData objectForKey: keyOfObject ];
}


- removeObjectForKey: (id) keyOfObject {
  id objectToRemove = [self objectForKey: keyOfObject];
  
  if( nil != objectToRemove ) {
    [self->contextData removeObjectForKey: keyOfObject];
  }
  
  return objectToRemove;
}
@end