Package edu.wisc.library.ocfl.core.lock

Class PostgresObjectLock

java.lang.Object

edu.wisc.library.ocfl.core.lock.PostgresObjectLock

All Implemented Interfaces:

ObjectLock

public class PostgresObjectLock
extends Object
implements ObjectLock

Constructor Summary

Constructors

Constructor	Description
PostgresObjectLock(String tableName, DataSource dataSource, long waitTime, TimeUnit timeUnit)

Method Summary

Modifier and Type	Method	Description
void	doInWriteLock(String objectId, Runnable doInLock)	Executes the code block after securing a write lock on the objectId.
<T> T	doInWriteLock(String objectId, Callable<T> doInLock)	Executes the code block after securing a write lock on the objectId.

Methods inherited from class java.lang.Object

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

Constructor Detail

PostgresObjectLock

public PostgresObjectLock(String tableName,
                          DataSource dataSource,
                          long waitTime,
                          TimeUnit timeUnit)

Method Detail

doInWriteLock

public void doInWriteLock(String objectId,
                          Runnable doInLock)

Executes the code block after securing a write lock on the objectId. The lock is released after the block completes.

Specified by:

doInWriteLock in interface ObjectLock

Parameters:

objectId - id of the object

doInLock - block to execute within the lock

doInWriteLock

public <T> T doInWriteLock(String objectId,
                           Callable<T> doInLock)

Executes the code block after securing a write lock on the objectId. The lock is released after the block completes.

Specified by:

doInWriteLock in interface ObjectLock

Type Parameters:

T - return type

Parameters:

objectId - id of the object

doInLock - block to execute within the lock

Returns:

object