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Java Source Code / Java Documentation » EJB Server JBoss 4.2.1 » j2ee » javax.jms

Source Cross Reference Class Diagram Java Document (Java Doc)

javax.jms .ObjectMessage

ObjectMessage

public interface ObjectMessage extends Message(Code)

An ObjectMessage object is used to send a message that contains a serializable object in the Java programming language ("Java object"). It inherits from the Message interface and adds a body containing a single reference to an object. Only Serializable Java objects can be used.

If a collection of Java objects must be sent, one of the Collection classes provided since JDK 1.2 can be used.

When a client receives an ObjectMessage, it is in read-only mode. If a client attempts to write to the message at this point, a MessageNotWriteableException is thrown. If clearBody is called, the message can now be both read from and written to.
See Also:   javax.jms.Session.createObjectMessage
See Also:   javax.jms.Session.createObjectMessage(Serializable)
See Also:   javax.jms.BytesMessage
See Also:   javax.jms.MapMessage
See Also:   javax.jms.Message
See Also:   javax.jms.StreamMessage
See Also:   javax.jms.TextMessage

Method Summary
Serializable	getObject() Gets the serializable object containing this message's data.
void	setObject(Serializable object) Sets the serializable object containing this message's data.

Method Detail

getObject
Serializable getObject() throws JMSException(Code)
	Gets the serializable object containing this message's data. The default value is null. the serializable object containing this message's data exception: JMSException - if the JMS provider fails to get the objectdue to some internal error. exception: MessageFormatException - if object deserialization fails.

setObject
void setObject(Serializable object) throws JMSException(Code)
	Sets the serializable object containing this message's data. It is important to note that an `ObjectMessage` contains a snapshot of the object at the time `setObject()` is called; subsequent modifications of the object will have no effect on the `ObjectMessage` body. Parameters: object - the message's data exception: JMSException - if the JMS provider fails to set the objectdue to some internal error. exception: MessageFormatException - if object serialization fails. exception: MessageNotWriteableException - if the message is in read-onlymode.

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