net.sf.jso.transaction
Class JSOLockManager

java.lang.Object
  net.sf.jso.transaction.JSOLockManager

All Implemented Interfaces:

LockManager

public class JSOLockManager

extends java.lang.Object

implements LockManager

Constructor Summary

JSOLockManager()

Method Summary

LockInfo	getLockInfo() Gets transaction processing information.
void	lock(TID txid, OID oid, boolean exclusive, long timeout) Tries to hold a lock for an object.
void	release(TID txid, OID oid) Releases the lock for an object

Methods inherited from class java.lang.Object

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

Constructor Detail

JSOLockManager

public JSOLockManager()

Method Detail

lock

public void lock(TID txid,
                 OID oid,
                 boolean exclusive,
                 long timeout)
          throws TransactionTimeoutException

Tries to hold a lock for an object. All locks are released when transaction finishes.

Specified by:

lock in interface LockManager

Parameters:

oid - The OID of the object to be locked.

exclusive - Informs if the lock should be exclusive.

timeout - Number of milliseconds for timeout. Values lesser than 1 millisecond mean no timeout should be used.

Throws:

TransactionTimeoutException

release

public void release(TID txid,
                    OID oid)
             throws StorageException

Releases the lock for an object

Specified by:

release in interface LockManager

Parameters:

oid - The OID of the object to be released.

Throws:

StorageException

getLockInfo

public LockInfo getLockInfo()

Gets transaction processing information.

Specified by:

getLockInfo in interface LockManager

Returns:

Information about transaction processing.