Problems adding a Boolean to an existing class

[joergrech]

Hi,
when I add a Boolean to an existing domain class (that is already used and has instances in Redis) I get the following exception:

Cannot convert value of type [null] to required type [boolean] for property 'isValid':
PropertyEditor [org.springframework.beans.propertyeditors.CustomBooleanEditor]
returned inappropriate value of type [null]

I tried to add the constraint nullable:true to the boolean (isValid nullable: true) and tried to use a default value (boolean isValid = false) but that did not help.

Am I doing something wrong or has redis/jedis a problem using nullable booleans or converting missing fields from the redis DB into a null boolean?

[tednaleid]

@joergrech it sounds like you're using the grails redis-gorm plugin, which provides domain class integration with redis. This plugin is the vanilla redis plugin that just gives you a connection pool to redis with some helper methods.

I'm closing this issue, but please let me know if I'm misunderstanding your question.

[burtbeckwith]

Make the type Boolean, not boolean, since boolean cannot be null, only true or false

[joergrech]

@tednaleid Yes, I was using the redis-gorm plugin. Sorry for the inconvenience.
@burtbeckwith Aha sounds right I will test it on Monday - thanks for the tip.