[jira] [Created] (WICKET-6569) LambdaModel.of overload is ambiguous

["Michael Gerhards (JIRA)" <ji...@apache.org>]

Michael Gerhards created WICKET-6569:
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             Summary: LambdaModel.of overload is ambiguous
                 Key: WICKET-6569
                 URL: https://issues.apache.org/jira/browse/WICKET-6569
             Project: Wicket
          Issue Type: Wish
          Components: wicket
    Affects Versions: 8.0.0
            Reporter: Michael Gerhards


a method call of

LambdaModel.of(this::getModelObject, this::setModelObject)

refers to

public static <X, R> IModel<R> of(IModel<X> target, SerializableFunction<X, R> getter)

but should be

public static <R> IModel<R> of(SerializableSupplier<R> getter, SerializableConsumer<R> setter)

The problem is that IModel and SerializableSupplier have functionally the same interface:

T getObject(); vs. T get();

 

Background:

The child component should share its default model object with its parent component's default model object. So if setDefaultModelObject is called on the parent component than the child component should also refer to the new value (and with versa).

 

Workaround:

public Parent(String wicektId, IModel<Role> roleModel) {

IModel<Role> childRoleModel = new IModel<Role>() {
            @Override
            public Role getObject() {
                return Parent.this.getModelObject();
            }

            @Override
            public void setObject(Role object) {
                Parent.this.setModelObject(object);
            }
 };

add(new Child("child", childRoleModel));

}

 

Solution:

The problem only exists because .of Method is overloaded. If both methods would have different names (or be in different classes) than the compiler would be fine.



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