Passing ${VALUE} from graph to java

CloverDX Platform
1

hi,
i want to pass the ${VALUE} from the partition transformer to the java class it is running, how can i do that?

2

Graph parameters can be accessed by calling getGraph().getGraphProperties() method.

So in case of Partition a very small example that sends data to output port given by graph parameter “partitionSetting” would be like this:


public class MyPartition extends DataPartitionFunction {
	@Override
	public int getOutputPort(DataRecord arg0) throws TransformException {
		return Integer.parseInt(getGraph().getGraphProperties().getProperty("partitionSetting"));
	}

	@Override
	public boolean supportsDirectRecord() {
		return false;
	}
}
3

hi,
i tried it but the getGraph() is null.
any idea why?

4

thank you its working.

5

Which class or interface does your Java class extend/implement? DataPartitionFunction or something else (PartitionFunction, …)?

6

when i tried implement PartitionFunction it didnt work
then i changed to extend DataPartitionFunction and its ok now.