com.caucho.db.store
Class Lock

java.lang.Object
  com.caucho.db.store.Lock

public final class Lock
extends java.lang.Object

Locking for tables/etc.

Constructor Summary

Lock(java.lang.String id)

Method Summary

java.lang.String	getId() Returns the lock identifier.
boolean	lockReadAndWriteNoWait() Tries to get a write lock, but does not wait if other threads are reading or writing.
java.lang.String	toString()

Methods inherited from class java.lang.Object

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

Constructor Detail

Lock

public Lock(java.lang.String id)

Method Detail

getId

public java.lang.String getId()

Returns the lock identifier.

lockReadAndWriteNoWait

public boolean lockReadAndWriteNoWait()
                               throws java.sql.SQLException

Tries to get a write lock, but does not wait if other threads are reading or writing. insert() uses this call to avoid blocking when allocating a new row.

Returns:

true if the write was successful

Throws:

java.sql.SQLException

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object