simple

Class HelloWorld

java.lang.Object

simple.HelloWorld

public class HelloWorld
extends java.lang.Object

Sample Hello World topology application. This Java application builds a simple topology that prints Hello World 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 the mechanics of declaring a topology and executing it.

This may be executed from the samples/java/functional directory as:

• ant run.helloworld - Using Apache Ant, this will run in embedded mode.
• java -jar funcsamples.jar:../com.ibm.streamsx.topology/lib/com.ibm.streamsx.topology.jar:$STREAMS_INSTALL/lib/com.ibm.streams.operator.samples.jar simple.HelloWorld [CONTEXT_TYPE] - Run directly from the command line.
If no arguments are provided then the topology is executed in embedded mode, within this JVM.
CONTEXT_TYPE is one of:
• DISTRIBUTED - Run as an IBM Streams distributed application.
• STANDALONE - Run as an IBM Streams standalone application.
• EMBEDDED - Run embedded within this JVM.
• BUNDLE - Create an IBM Streams application bundle.
• TOOLKIT - Create an IBM Streams application toolkit.
• An application execution within your IDE once you set the class path to include the correct jars.

Constructor Summary

Constructors

Constructor and Description
HelloWorld()

Method Summary

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

Methods inherited from class java.lang.Object

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

Constructor Detail

HelloWorld

public HelloWorld()

Method Detail

main

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

Sample Hello World topology application. This Java application builds a simple topology that prints Hello World 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 -

Throws:

java.lang.Exception