com.arjuna.ats.internal.arjuna.objectstore

Class ShadowNoFileLockStore

java.lang.Object

com.arjuna.ats.arjuna.objectstore.ObjectStore

com.arjuna.ats.internal.arjuna.objectstore.FileSystemStore

com.arjuna.ats.internal.arjuna.objectstore.ShadowingStore

com.arjuna.ats.internal.arjuna.objectstore.ShadowNoFileLockStore

All Implemented Interfaces:

BaseStore, ObjectStoreAPI, ParticipantStore, RecoveryStore, TxLog

Direct Known Subclasses:

ActionStore, HashedStore, NullActionStore

public class ShadowNoFileLockStore
extends ShadowingStore

Almost the same as the ShadowingStore implementation, but assumes all concurrency control is provided by the object. Therefore, there is no need to set/release locks on the file representation in the object store. Saves time.

Since:

JTS 1.0.

Version:

$Id: ShadowNoFileLockStore.java 2342 2006-03-30 13:06:17Z $

Author:

Mark Little (mark@arjuna.com)

Field Summary

Fields inherited from class com.arjuna.ats.internal.arjuna.objectstore.ShadowingStore

HIDDINGCHAR, SHADOWCHAR

Fields inherited from class com.arjuna.ats.internal.arjuna.objectstore.FileSystemStore

doSync, scanZeroLengthFiles, syncWrites

Fields inherited from class com.arjuna.ats.arjuna.objectstore.ObjectStore

_objectStoreRoot, shareStatus

Constructor Summary

Constructors

Constructor and Description
ShadowNoFileLockStore(ObjectStoreEnvironmentBean objectStoreEnvironmentBean)

Method Summary

Modifier and Type	Method and Description
protected boolean	lock(File fd, int lmode, boolean create) Override the default lock/unlock implementations to do nothing.
protected boolean	unlock(File fd) Unlock the file in the object store.

Methods inherited from class com.arjuna.ats.internal.arjuna.objectstore.ShadowingStore

commit_state, currentState, genPathName, hide_state, read_state, remove_state, reveal_state, revealedId, write_state

Methods inherited from class com.arjuna.ats.internal.arjuna.objectstore.FileSystemStore

addToCache, allObjUids, allTypes, allTypes, closeAndUnlock, createHierarchy, exists, getStoreName, openAndLock, read_committed, read_uncommitted, remove_committed, remove_uncommitted, removeFromCache, removeFromCache, renameFromTo, supressEntry, synchronousWrites, truncate, write_committed, write_uncommitted

Methods inherited from class com.arjuna.ats.arjuna.objectstore.ObjectStore

allObjUids, fullCommitNeeded, initialise, isType, locateStore, shareState, start, stop, storeDir, storeRoot, sync

Methods inherited from class java.lang.Object

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

Constructor Detail

ShadowNoFileLockStore

public ShadowNoFileLockStore(ObjectStoreEnvironmentBean objectStoreEnvironmentBean)
                      throws ObjectStoreException

Throws:

ObjectStoreException

Method Detail

lock

protected boolean lock(File fd,
                       int lmode,
                       boolean create)

Override the default lock/unlock implementations to do nothing.

Overrides:

lock in class FileSystemStore

unlock

protected boolean unlock(File fd)

Description copied from class: FileSystemStore

Unlock the file in the object store.

Overrides:

unlock in class FileSystemStore