Boolean Status Light Node (Feature request??)

Node Development
1

Not sure if Knime has the ability to adjust the Icon of the node itself?

I do tons of data transformations, and one of my sanity tests is to test my 'new' end results with a group by.  The grand total should always add up to the same, and if it doesn't I know I lost some data I didn't want to lose.

What would be so much easier for me is to have a Red/Green light, and I can put a "rule" in it (or java, or whatever) and if the condition isn't met (Variable1 = 10,323,012.22) then it will shine red, otherwise Green.

This would be incredibly useful to ensure my data integrity is strong throughout the workflow.

2

Have you looked the testing nodes? They don't do this but do allow you to check your workflow for various errors/changes. 

If you run as a test workflow you get green ticks and red crosses I think but in a view. 

3

Might be a good workaround for now.. although my idea would be prettier :)

 

So I thought maybe a "JAVA IF (Table)" to check a condition, and it will just give a check on which path it wants?  Up or down?

Problem is that it's not as robust as the Java Snippet, so I don't see my columns there.. I would like to have code something like:

if (c__FiscalYear == "FY14" && c__Segment == "Small" && c__Sales =="1234.56") return 1 

4

You could throw an exception from a Java snippet.

if (Variable1 != 10323012.22) {
    logError("Wrong checksum!");
    throw new Abort("Wrong checksum");
}