org.apache.lucene.store.jdbc.lock
Class NoOpLock

java.lang.Object
  org.apache.lucene.store.Lock
      org.apache.lucene.store.jdbc.lock.NoOpLock

All Implemented Interfaces:

JdbcLock

public class NoOpLock
extends Lock
implements JdbcLock

A simple no op lock. Performs no locking.

Author:

kimchy

Nested Class Summary

Nested classes/interfaces inherited from class org.apache.lucene.store.Lock

Lock.With

Field Summary

Fields inherited from class org.apache.lucene.store.Lock

failureReason, LOCK_OBTAIN_WAIT_FOREVER, LOCK_POLL_INTERVAL

Constructor Summary

NoOpLock()

Method Summary

void	configure(JdbcDirectory jdbcDirectory, String name) Configures the lock.
void	initializeDatabase(JdbcDirectory jdbcDirectory) Called without configure.
boolean	isLocked()
boolean	obtain()
void	release()

Methods inherited from class org.apache.lucene.store.Lock

obtain

Methods inherited from class java.lang.Object

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

Constructor Detail

NoOpLock

public NoOpLock()

Method Detail

configure

public void configure(JdbcDirectory jdbcDirectory,
                      String name)
               throws IOException

Description copied from interface: JdbcLock

Configures the lock. Called just after the lock is instantiated.

Specified by:

configure in interface JdbcLock

Parameters:

jdbcDirectory - The directory using the lock

name - The name of the lock

Throws:

IOException

initializeDatabase

public void initializeDatabase(JdbcDirectory jdbcDirectory)

Description copied from interface: JdbcLock

Called without configure. Should initialize a creates database.

Specified by:

initializeDatabase in interface JdbcLock

Parameters:

jdbcDirectory - The directory owning the lock

obtain

public boolean obtain()
               throws IOException

Specified by:

obtain in class Lock

Throws:

IOException

release

public void release()

Specified by:

release in class Lock

isLocked

public boolean isLocked()

Specified by:

isLocked in class Lock