Class MQQueueEnumeration

java.lang.Object

com.ibm.mq.jms.MQQueueEnumeration

All Implemented Interfaces:

Enumeration

public class MQQueueEnumeration
extends Object
implements Enumeration

MQQueueEnumeration enumerates messages on a queue. This class is not defined in the JMS specification; it is created by calling the getEnumeration method of MQQueueBrowser. The class contains a base MQQueue instance to hold the browse cursor. The queue is closed once the cursor has moved off the end of the queue. There is no way to reset an instance of this class; it acts as a one-shot mechanism.

See Also:

• MQQueueBrowser

Method Summary

Modifier and Type	Method	Description
boolean	hasMoreElements()	Indicates whether another message can be returned.
javax.jms.Message	nextElement()	Gets the current message.

Methods inherited from class Object

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

Methods inherited from interface Enumeration

asIterator

Method Details

hasMoreElements

public boolean hasMoreElements()

Indicates whether another message can be returned.

Specified by:

hasMoreElements in interface Enumeration

Returns:

true if another message can be returned.

nextElement

public javax.jms.Message nextElement()

Gets the current message. Always returns a message if hasMoreElements returns true. It is possible for the returned message to pass its expiry date between the hasMoreElements() and the nextElement() calls.

Specified by:

nextElement in interface Enumeration

Returns:

the current message.

Throws:

NoSuchElementException - if no more messages are found in the collection.