org.openrdf.sail.rdbms.util

Class DatabaseLockManager

java.lang.Object

org.openrdf.sail.rdbms.util.DatabaseLockManager

All Implemented Interfaces:

LockManager

public class DatabaseLockManager
extends Object
implements LockManager

Author:

James Leigh

Constructor Summary

Constructors

Constructor and Description
DatabaseLockManager(DataSource ds)
DatabaseLockManager(DataSource ds, String user, String password)

Method Summary

Methods

Modifier and Type	Method and Description
String	getLocation()
boolean	isDebugEnabled()
boolean	isLocked()
Lock	lockOrFail()
boolean	revokeLock() Revokes a lock owned by another process.
Lock	tryLock()

Methods inherited from class java.lang.Object

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

Constructor Detail

DatabaseLockManager

public DatabaseLockManager(DataSource ds)

DatabaseLockManager

public DatabaseLockManager(DataSource ds,
                   String user,
                   String password)

Method Detail

getLocation

public String getLocation()

Specified by:

getLocation in interface LockManager

isDebugEnabled

public boolean isDebugEnabled()

isLocked

public boolean isLocked()

Specified by:

isLocked in interface LockManager

tryLock

public Lock tryLock()

Specified by:

tryLock in interface LockManager

lockOrFail

public Lock lockOrFail()
                throws SailLockedException

Specified by:

lockOrFail in interface LockManager

Throws:

SailLockedException

revokeLock

public boolean revokeLock()

Revokes a lock owned by another process.

Specified by:

revokeLock in interface LockManager

Returns:

true if a lock was successfully revoked.