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Determining whether an element contains a certain property [message #761237]

Tue, 06 December 2011 01:55

Eclipse User

Hi,
I'm in the need of a condition which checks whether an element has a certain property.
At the moment, I'm doing the following:

property = element.getModelElementType().getProperty(this.property);
return property != null;

It works.
But for every failed getProperty() call, the host console shows the following message (in red nonetheless):

ERROR : Invalid model path "List" evaluated on my.package.IConstant.

Is there a better way?
Many thanks,
Roded

[Updated on: Tue, 06 December 2011 03:44] by Moderator

Re: Determining whether an element contains certain property [message #761281 is a reply to message #761237]

Tue, 06 December 2011 03:32

Eclipse User

Could you show me a snippet of sdef where this condition is used and "List" is referenced?

- Konstantin

Re: Determining whether an element contains certain property [message #761286 is a reply to message #761281]

Tue, 06 December 2011 03:41

Eclipse User

<if>
    <condition>
        <class>PropertyExistsCondition</class>
        <parameter>List</parameter>
    </condition>
    <then>
        <include>@composite.value.list</include>
    </then>
    <else>...</else>
</if>

I might be doing this is a bit of a non-standard way:
I have an basic IValue with no properties which IList (for example) extends and adds a List property.
My composite then determines the type of content to show based on which property exists.
Roded

Re: Determining whether an element contains certain property [message #761303 is a reply to message #761286]

Tue, 06 December 2011 04:02

Eclipse User

That doesn't show what could possibly be causing that error. There must be other references to "List" somewhere else. ModelElementType.getProperty() doesn't cause this error...

    public ModelProperty getProperty( final String propertyName )
    {
        for( ModelProperty property : getProperties() )
        {
            if( property.getName().equalsIgnoreCase( propertyName ) )
            {
                return property;
            }
        }
        
        return null;
    }

Re: Determining whether an element contains certain property [message #761311 is a reply to message #761303]

Tue, 06 December 2011 04:21

Eclipse User

Right.
It was my initCondition()'s

super.initCondition(part, parameter);

Removed it as there's no listener relevance here.
Thanks.

[Updated on: Tue, 06 December 2011 04:21] by Moderator

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