com.ibm.streamsx.topology.tuple

Class SimpleMessage

java.lang.Object

com.ibm.streamsx.topology.tuple.SimpleMessage

All Implemented Interfaces:

Message, java.io.Serializable

public class SimpleMessage
extends java.lang.Object
implements java.io.Serializable, Message

A Simple implementation of an immutable Message.

See Also:

Serialized Form

Constructor Summary

Constructors

Constructor and Description
SimpleMessage(java.lang.String message, java.lang.String key, java.lang.String topic) Create a SimpleMessage.
SimpleMessage(java.lang.String message, java.lang.String key) Create a SimpleMessage that lacks a topic.
SimpleMessage(java.lang.String message) Create a SimpleMessage that lacks a key and topic.

Method Summary

Modifier and Type	Method and Description
boolean	equals(java.lang.Object obj)
java.lang.String	getKey() Get the message key for this object.
java.lang.String	getMessage() Get the message content for this object.
java.lang.String	getTopic() Get the message topic for this object.
int	hashCode()
java.lang.String	toString()

Methods inherited from class java.lang.Object

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

Constructor Detail

SimpleMessage

public SimpleMessage(java.lang.String message)

Create a SimpleMessage that lacks a key and topic.

Parameters:

message - the message

SimpleMessage

public SimpleMessage(java.lang.String message,
                     java.lang.String key)

Create a SimpleMessage that lacks a topic.

Parameters:

message - the message

key - Optional key associated with the message. May be null.

SimpleMessage

public SimpleMessage(java.lang.String message,
                     java.lang.String key,
                     java.lang.String topic)

Create a SimpleMessage.

Parameters:

message - the message

key - Optional key associated with the message. May be null.

topic - Optional topic identifier associated with the message. May be null.

Throws:

java.lang.IllegalArgumentException - if message == null

Method Detail

getTopic

public java.lang.String getTopic()

Description copied from interface: Message

Get the message topic for this object.

Specified by:

getTopic in interface Message

Returns:

optional message topic. May be null.

getKey

public java.lang.String getKey()

Description copied from interface: Message

Get the message key for this object.

Specified by:

getKey in interface Message

Returns:

optional message key. May be null.

getMessage

public java.lang.String getMessage()

Description copied from interface: Message

Get the message content for this object.

Specified by:

getMessage in interface Message

Returns:

message the message

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object

hashCode

public int hashCode()

Overrides:

hashCode in class java.lang.Object

equals

public boolean equals(java.lang.Object obj)

Overrides:

equals in class java.lang.Object