shady.common.op
Class Operation

java.lang.Object
  extended by shady.common.op.Operation
Direct Known Subclasses:
BoundOperation

public abstract class Operation
extends java.lang.Object

A Shady Operation.

Copyright (C) 2006 Marsette A. Vona, III

This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version.

This program 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 General Public License for more details.

You should have received a copy of the GNU General Public License along with this program; if not, write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.

Author:
Marsette (Marty) A. Vona, III

Field Summary
private static java.lang.String cvsid
          CVS id.
 
Constructor Summary
Operation()
           
 
Method Summary
abstract  int exec()
          Execute the operation.
 
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
 

Field Detail

cvsid

private static final java.lang.String cvsid

CVS id.

See Also:
Constant Field Values
Constructor Detail

Operation

public Operation()
Method Detail

exec

public abstract int exec()

Execute the operation.

Has no effect if the system is already in the target state of the operation.

Fails fast if the system is currently in fault.

Blocks until the operation is complete.

Returns:
0 if the operation was successful, otherwise the fault that occurred