simple

Class Echo

java.lang.Object

simple.Echo

public class Echo
extends java.lang.Object

Sample echo topology application. This Java application builds a simple topology that echos its command line arguments to standard output.
The application implements the typical pattern of code that declares a topology followed by submission of the topology to a Streams context com.ibm.streamsx.topology.context.StreamsContext.
This demonstrates passing in values (the command line arguments) into a topology, so that the same application can produce different ouput depending on the passed in values.

This topology is always executed in embedded mode, within this JVM.
This may be executed from the samples/java/functional directory as:

• ant run.echo - Using Apache Ant, this will run in embedded mode.
• java -cp functionalsamples.jar:../../../com.ibm.streamsx.topology/lib/com.ibm.streamsx.topology.jar:$STREAMS_INSTALL/lib/com.ibm.streams.operator.samples.jar simple.Echo text to echo - Run directly from the command line in embedded mode.
• An application execution within your IDE once you set the class path to include the correct jars.

Constructor Summary

Constructors

Constructor and Description
Echo()

Method Summary

Methods

Modifier and Type	Method and Description
static void	main(java.lang.String[] args) Sample Echo topology application.

Methods inherited from class java.lang.Object

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

Constructor Detail

Echo

public Echo()

Method Detail

main

public static void main(java.lang.String[] args)
                 throws java.lang.Exception

Sample Echo topology application. This Java application builds a simple topology that echos its command line arguments to standard output.
The application implements the typical pattern of code that declares a topology followed by submission of the topology to a Streams context (@code com.ibm.streamsx.topology.context.StreamsContext}.

Parameters:

args - Arguments to be echoed to standard out.

Throws:

java.lang.Exception