org.springframework.messaging.support

Class GenericMessage<T>

java.lang.Object

org.springframework.messaging.support.GenericMessage<T>

All Implemented Interfaces:

Serializable, Message<T>

Direct Known Subclasses:

ErrorMessage

public class GenericMessage<T>
extends Object
implements Message<T>, Serializable

An implementation of Message with a generic payload. Once created, a GenericMessage is immutable.

Since:

4.0

Author:

Mark Fisher

See Also:

MessageBuilder, Serialized Form

Constructor Summary

Constructors

Constructor and Description
GenericMessage(T payload) Create a new message with the given payload.
GenericMessage(T payload, Map<String,Object> headers) Create a new message with the given payload and headers.
GenericMessage(T payload, MessageHeaders headers) A constructor with the MessageHeaders instance to use.

Method Summary

Modifier and Type	Method and Description
boolean	equals(Object obj)
MessageHeaders	getHeaders() Return message headers for the message (never null).
T	getPayload() Return the message payload.
int	hashCode()
String	toString()

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Constructor Detail

GenericMessage

public GenericMessage(T payload)

Create a new message with the given payload.

Parameters:

payload - the message payload, never null

GenericMessage

public GenericMessage(T payload,
                      Map<String,Object> headers)

Create a new message with the given payload and headers. The content of the given header map is copied.

Parameters:

payload - the message payload, never null

headers - message headers to use for initialization

GenericMessage

public GenericMessage(T payload,
                      MessageHeaders headers)

A constructor with the MessageHeaders instance to use.

Note: the given MessageHeaders instance is used directly in the new message, i.e. it is not copied.

Parameters:

payload - the message payload, never null

headers - message headers

Method Detail

getHeaders

public MessageHeaders getHeaders()

Description copied from interface: Message

Return message headers for the message (never null).

Specified by:

getHeaders in interface Message<T>

getPayload

public T getPayload()

Description copied from interface: Message

Return the message payload.

Specified by:

getPayload in interface Message<T>

toString

public String toString()

Overrides:

toString in class Object

hashCode

public int hashCode()

Overrides:

hashCode in class Object

equals

public boolean equals(Object obj)

Overrides:

equals in class Object