com.arjuna.ats.arjuna.tools.osb.api.proxy
Class RecoveryStoreProxy

java.lang.Object
  com.arjuna.ats.arjuna.tools.osb.api.proxy.TxLogProxy
      com.arjuna.ats.arjuna.tools.osb.api.proxy.RecoveryStoreProxy

All Implemented Interfaces:

BaseStore, RecoveryStore, TxLog

public class RecoveryStoreProxy
extends TxLogProxy
implements RecoveryStore

Remote proxy to a RecoveryStore

Constructor Summary

RecoveryStoreProxy(RecoveryStoreBeanMBean rsProxy)

Method Summary

boolean	allObjUids(String type, InputObjectState buff)
boolean	allObjUids(String type, InputObjectState buff, int match) Obtain all of the Uids for a specified type.
boolean	allTypes(InputObjectState buff) Obtain all types of objects stored in the object store.
int	currentState(Uid u, String tn)
boolean	hide_state(Uid u, String tn) Hide the object's state in the object store.
boolean	isType(Uid u, String tn, int st) Is the current state of the object the same as that provided as the last parameter?
InputObjectState	read_committed(Uid u, String tn) Read the object's committed state.
boolean	reveal_state(Uid u, String tn) Reveal a hidden object's state.

Methods inherited from class com.arjuna.ats.arjuna.tools.osb.api.proxy.TxLogProxy

getStoreName, remove_committed, start, stop, sync, write_committed

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface com.arjuna.ats.arjuna.objectstore.TxLog

remove_committed, sync, write_committed

Methods inherited from interface com.arjuna.ats.arjuna.objectstore.BaseStore

getStoreName, start, stop

Constructor Detail

RecoveryStoreProxy

public RecoveryStoreProxy(RecoveryStoreBeanMBean rsProxy)

Method Detail

allObjUids

public boolean allObjUids(String type,
                          InputObjectState buff,
                          int match)
                   throws ObjectStoreException

Description copied from interface: RecoveryStore

Obtain all of the Uids for a specified type.

Specified by:

allObjUids in interface RecoveryStore

Parameters:

type - The type to scan for.

buff - The object state in which to store the Uids

match - The file type to look for (e.g., committed, shadowed). [StateStatus]

Returns:

true if no errors occurred, false otherwise.

Throws:

ObjectStoreException

allObjUids

public boolean allObjUids(String type,
                          InputObjectState buff)
                   throws ObjectStoreException

Specified by:

allObjUids in interface RecoveryStore

Throws:

ObjectStoreException

allTypes

public boolean allTypes(InputObjectState buff)
                 throws ObjectStoreException

Description copied from interface: RecoveryStore

Obtain all types of objects stored in the object store.

Specified by:

allTypes in interface RecoveryStore

Parameters:

buff - The state in which to store the types.

Returns:

true if no errors occurred, false otherwise.

Throws:

ObjectStoreException

currentState

public int currentState(Uid u,
                        String tn)
                 throws ObjectStoreException

Specified by:

currentState in interface RecoveryStore

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]

Throws:

ObjectStoreException

hide_state

public boolean hide_state(Uid u,
                          String tn)
                   throws ObjectStoreException

Description copied from interface: RecoveryStore

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

Specified by:

hide_state in interface RecoveryStore

Parameters:

u - The object to work on.

tn - The type of the object to work on.

Returns:

true if no errors occurred, false otherwise.

Throws:

ObjectStoreException

reveal_state

public boolean reveal_state(Uid u,
                            String tn)
                     throws ObjectStoreException

Description copied from interface: RecoveryStore

Reveal a hidden object's state.

Specified by:

reveal_state in interface RecoveryStore

Parameters:

u - The object to work on.

tn - The type of the object to work on.

Returns:

true if no errors occurred, false otherwise.

Throws:

ObjectStoreException

read_committed

public InputObjectState read_committed(Uid u,
                                       String tn)
                                throws ObjectStoreException

Description copied from interface: RecoveryStore

Read the object's committed state.

Specified by:

read_committed in interface RecoveryStore

Parameters:

u - The object to work on.

tn - The type of the object to work on.

Returns:

the state of the object.

Throws:

ObjectStoreException

isType

public boolean isType(Uid u,
                      String tn,
                      int st)
               throws ObjectStoreException

Description copied from interface: RecoveryStore

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

Specified by:

isType in interface RecoveryStore

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.

Throws:

ObjectStoreException