Answers to: Number as null

Answer by Reto Weiss

Reto Weiss — Fri, 09 Jun 2017 08:34:39 -0400

of all you have to set the system property org.apache.el.parser.COERCE_TO_ZERO to false as described by you about. This can be done in the AxonIvyDesigner.ini of the AxonIvyEngine.ilc file on Windows. This turns of that JSF replaces null values through 0.
IvyScript tries to auto initialize most of the values. This means that if a number is null IvyScript will turn it into a 0. Even though you can test if a 0 is set manually or was auto initialized. This can be done with the operator is initialized.

Example:

ivy.log.info("Was initialized manually:"+(in.num is initialized) +" Value "+in.num);

With that you can decide if the field was empty (value is 0 but not initialized) or if the user has entered a 0 (value is 0 and initialized).

Regards

Reto Weiss, ivyTeam Support

Comment by Maxim S on Maxim S's question

Maxim S — Fri, 02 Jun 2017 11:16:00 -0400

Thank you very much! But what do we need to do that disable convert null to 0 for Designer?

Comment by Reto Weiss on Maxim S's question

Reto Weiss — Fri, 02 Jun 2017 11:08:57 -0400

The ivy.vm.additional.options is only used on the Engine for Windows. There you can copy the Example.ilc file in the bin directory and rename it to AxonIvyEngine.ilc. In the file your find that property. The ilc file is used by the AxonIvyEngine.exe to start java. See Engine Guide for more information about the ilc file and how to use it.