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  /*
   * JBoss, Home of Professional Open Source
   * Copyright 2006, Red Hat Middleware LLC, and individual contributors 
   * as indicated by the @author tags. 
   * See the copyright.txt in the distribution for a
   * full listing of individual contributors. 
   * This copyrighted material is made available to anyone wishing to use,
   * modify, copy, or redistribute it subject to the terms and conditions
   * of the GNU Lesser General Public License, v. 2.1.
  * This program is distributed in the hope that it will be useful, but WITHOUT A 
  * 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,
  * v.2.1 along with this distribution; if not, write to the Free Software
  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, 
  * MA  02110-1301, USA.
  * 
  * (C) 2005-2006,
  * @author JBoss Inc.
  */
 /*
  * Copyright (C) 1998, 1999, 2000, 2001,
  *
  * Arjuna Solutions Limited,
  * Newcastle upon Tyne,
  * Tyne and Wear,
  * UK.  
  *
  * $Id: ObjectStore.java 2342 2006-03-30 13:06:17Z  $
  */
 
 package com.arjuna.ats.arjuna.objectstore;
 
All ObjectStore implementations that are used to drive recovery MUST implement this interface. Because recovery is a superset of transaction logging, those methods are also available.

Author(s):
Mark Little (mark@arjuna.com)
Version:
$Id: ObjectStore.java 2342 2006-03-30 13:06:17Z $
Since:
JTS 1.0.
 
 
 public interface RecoveryStore extends TxLog
 {
    
Obtain all of the Uids for a specified type.

Parameters:
s The type to scan for.
buff The object state in which to store the Uids
m The file type to look for (e.g., committed, shadowed). [StateStatus]
Returns:
true if no errors occurred, false otherwise.
 
 
     public boolean allObjUids (String sInputObjectState buffint mthrows ObjectStoreException;
 
     public boolean allObjUids (String sInputObjectState buffthrows ObjectStoreException;
    
    
Obtain all types of objects stored in the object store.

Parameters:
buff The state in which to store the types.
Returns:
true if no errors occurred, false otherwise.
 
 
     public boolean allTypes (InputObjectState buffthrows ObjectStoreException;

    

Parameters:
u The object to query.
tn The type of the object to query.
Returns:
the current state of the object's state (e.g., shadowed, committed ...) [StateStatus]
 
 
     public int currentState (Uid uString tnthrows ObjectStoreException;

    
Hide the object's state in the object store. Used by crash recovery.

Parameters:
u The object to work on.
tn The type of the object to work on.
Returns:
true if no errors occurred, false otherwise.
 
 
     public boolean hide_state (Uid uString tnthrows ObjectStoreException;

    
Reveal a hidden object's state.

Parameters:
u The object to work on.
tn The type of the object to work on.
Returns:
true if no errors occurred, false otherwise.
    public boolean reveal_state (Uid uString tnthrows ObjectStoreException;

    
Read the object's committed state.

Parameters:
u The object to work on.
tn The type of the object to work on.
Returns:
the state of the object.
    public InputObjectState read_committed (Uid uString tnthrows ObjectStoreException;

    
Is the current state of the object the same as that provided as the last parameter?

Parameters:
u The object to work on.
tn The type of the object.
st The expected type of the object. [StateType]
Returns:
true if the current state is as expected, false otherwise.
    public boolean isType (Uid uString tnint stthrows ObjectStoreException;
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