Ittay Dror wrote:
public final Object getModelObject()
{
final IModel model = getModel();
if (model != null)
{
// If this component has the root model for a compound model
if (getFlag(FLAG_HAS_ROOT_MODEL))
{
// we need to return the root model and not a property
of the
// model
return getRootModel(model).getObject(null);
}
// Get model value for this component
return model.getObject(this);
}
else
{
return null;
}
}
note the statement: getRootModel(model).getObject(null);
why use null?
I believe it's because of compound models. e.g. when you have compound
property model, getObject(Component) returns you the property of the
model object which name is sme as component id.
getObject(null) returns you the whole model object.
If you have a form for instance and set it a compoundpropertymodel, the
modelObject of the form is the object you put to the model.
but the model objects of components placed into the form are actually
properties of the object you set to the model. (as the components will
inherit the model from the form)
-Matej
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