org.wamblee.concurrency

Class ReadWriteLockProxyFactory<T>

java.lang.Object

org.wamblee.concurrency.ReadWriteLockProxyFactory<T>

public class ReadWriteLockProxyFactory<T>
extends Object

Proxy factory that provides locking using ReentrantReadWriteLock based on the ReadLock and WriteLock annotations. The annotations must be applied to the service implementation methods. Annotations on the interfaces are ignored. It uses fair read-write locking.

For example:

   class Service implements MyApi {
       @ReadLock
       void doX() { ... }
       @WriteLock
       void doY() { ... }
       // no locking by default
       void doZ() { ... } 
   }
   
   // create service
   Service svc = new Service();
   
   // create service guarded by read-write locking.
   MyApi guardedSvc = new ReadWriteLockProxyFactory().getProxy(svc, MyApi.class);
 

Author:

Erik Brakkee

Constructor Summary

Constructors

Constructor and Description
ReadWriteLockProxyFactory() Constructs the factory.

Method Summary

Methods

Modifier and Type	Method and Description
T	getProxy(T aService, Class... aInterfaces) Gets the proxy that delegates to the thread-specific instance set by #set(Object) When at runtime the proxy cannot find lookup the object in JNDI, it throws LookupException.

Methods inherited from class java.lang.Object

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

Constructor Detail

ReadWriteLockProxyFactory

public ReadWriteLockProxyFactory()

Constructs the factory.

Method Detail

getProxy

public T getProxy(T aService,
         Class... aInterfaces)

Gets the proxy that delegates to the thread-specific instance set by #set(Object) When at runtime the proxy cannot find lookup the object in JNDI, it throws LookupException.

Returns:

Proxy.