auto initialisation / number 0 from JSF View

Question

Hello, we have a datatable in jsf view, one column is a number in bean. After submiting form (ivy event) we receive initialised number 0, so our validation cannot check if user inserted it manually (field is mandatory, 0 must be explicit inserted). How can we avoid the auto initialisation ?

Karel

Accepted Answer

0

Hi, we have found the solution to set up

ivy.vm.additional.options=-Dorg.apache.el.parser.COERCE_TO_ZERO=false

But it must be done in all environments (each server, each designer in Development Team). Is there any possibility to set this in Run time (API ?)

Karel

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This answer is marked "community wiki".

answered 18.04.2016 at 15:34

tauser
(suspended)
accept rate: 33%

cool. the following code should do the same at runtime:

System.setProperty(org.apache.el.parser.COERCE_TO_ZERO, Boolean.False.toString());

(19.04.2016 at 08:41) Reguel Werme... ♦♦

Answer 2

0

I think you can determine if the 0 was auto initialized by using the IvyDefaultValues helper:

ch.ivyteam.ivy.scripting.objects.util.IvyDefaultValues.isDefaultObject(Object)

There exists also a community project 'dataclass-nuller' which helps to nullify auto initialized data class values. See https://github.com/ivy-supplements/dataclass-nuller/releases

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answered 14.03.2016 at 09:32

Reguel Werme... ♦♦
9.4k●3●19●58
accept rate: 70%

edited 15.03.2016 at 14:12

Hi, thank you for your response. This would be great, but isDefaultObject returns false. I think it comes from jsf view already as 0. I have tried p:inputText instead of p:inputNumber, but it is the same.

Karel

(15.03.2016 at 07:25) tauser

auto initialisation / number 0 from JSF View

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