eu.project.ttc.readers

Class QueueRegistry

java.lang.Object

eu.project.ttc.readers.QueueRegistry

public class QueueRegistry
extends java.lang.Object

A registry for queues of CollectionDocument, used in StreamingCollectionReader.

See Also:

StreamingCollectionReader

Method Summary

Modifier and Type	Method and Description
static QueueRegistry	getInstance() Returns the registry singleton.
java.util.concurrent.BlockingQueue<CollectionDocument>	getQueue(java.lang.String queueName) Retrieves and returns a registered queue by name.
java.util.concurrent.BlockingQueue<CollectionDocument>	registerQueue(java.lang.String queueName, int capacity) Creates and registers a new ArrayBlockingQueue with given initial capacity.

Methods inherited from class java.lang.Object

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

Method Detail

getInstance

public static QueueRegistry getInstance()

Returns the registry singleton.

Returns:

the registry

getQueue

public java.util.concurrent.BlockingQueue<CollectionDocument> getQueue(java.lang.String queueName)

Retrieves and returns a registered queue by name.

Parameters:

queueName - The name of the queue to retrieve

Returns:

The retrieved queue with name queueName

Throws:

java.lang.IllegalArgumentException - if there is queue with the name queueName

registerQueue

public java.util.concurrent.BlockingQueue<CollectionDocument> registerQueue(java.lang.String queueName,
                                                                            int capacity)

Creates and registers a new ArrayBlockingQueue with given initial capacity.

Parameters:

queueName - The name of the queue

capacity - The initial capacity of the queue

Returns:

the created and registered queue

Throws:

java.lang.IllegalArgumentException - if queueName is already registered.