In Grails, is "property" a reserved word?

Question

In Grails, is "property" a reserved word? That is, can I name a domain class Property and have its owner reference it by properties? Example:

class Thing {
    static hasMany = [properties: Property]
}

class Property {
    static belongsTo = [thing: Thing]
}

When I try to add a Property to a Thing I get the error:

Exception thrown: No signature of method: org.codehaus.groovy.grails.web.binding.DataBindingLazyMetaPropertyMap.add() is applicable for argument types: (Property) values: [Property : null]

groovy.lang.MissingMethodException: No signature of method: org.codehaus.groovy.grails.web.binding.DataBindingLazyMetaPropertyMap.add() is applicable for argument types: (Property) values: [Property : null]

    at ConsoleScript10.run(ConsoleScript10:3)

Is there a list of all Grails reserved words?

Answer 1

While I cant find any file with the name Property in grails, it is wise not to use such a common word - who knows when it might become reserved in the future?

What would happen if you just prepended your classname with something, like BlahProperty?

Answer 2

I'm not sure that Property is reserved, but properties is treated specially for domain classes since it's used for data binding. What happens when you change:

static hasMany = [properties: Property]

to something like

static hasMany = [myProperties: Property]

Answer 3

Grails is a web framework. In general, only languages really have reserved words. The reserved words of Groovy are all those reserved by Java, plus a few others. The complete list is shown here.

You'll notice that it does include "property", which was a big surprise to me, as I've no idea what it's used for, and I think/thought I know Groovy reasonably well. Perhaps it's reserved for future use?