Create a initial Node

Node Development
1

Hey I want to create a “initial” Node the problem is I dont know how to create a new Data Row.
So the row should have no input but only one output. And in the example it only shows how to create a Node wich has input.

2

Hi Jonathans,

are you talking about this example from this tutorial? What exactly are you trying and how? Did you try to delete the input port in the NumberFormatterNodeFactory.xml ? That should give you a node without an input port.

Does this help? Don’t hesitate to ask further questions!

Best regards
Steffen

3

Hey, yea thats the tutorial that i meant. I already deleted the input port. But the problem is that in the execute() function of the tutorial you are accessing the inputTable, wich obviously i dont have if i dont have an Input.
So how to a create a DataRow / Result wich I can return in the execute() function. Because everything is like an interface wich you cant create a new Instance ( InterfaceName name = new InterfaceName) of.

Best regards
Jonathan

4

You can simply create a new row using the DefaultRow like this:

DataRow row = new DefaultRow(RowKey.createRowKey(idx), cells);
container.addRowToTable(row);

HTH,
Philipp

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5

This helped very much! But “createRowKey()” is deprecated what is the newer version of it?

6

afair only the one with int argument is deprecated. Just throw in a long and it should be fine. (if you’re only generating one row, it will not matter anyways)

–Philipp

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7

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