Programmatic component creation

[cyberoblivion]

I have a seam component that needs to dynamically create a number of other seam components which need injection to work.

For instance

@Name("componentCreator")
@Scope(ScopeType.CONVERSATION)
public class ComponentCreator{
@Create
public void init() {
for(String name: componentNames){
            MyComponentClass component = new MyComponentClass();
            //...somehow register component for injection and management...
        }
}
}

Is there a way to do this with seam?

Thanks in advance

[dhinojosa]

I'll bite...Seems unnecessary to do such a thing considering a component is lazily instantiated when called from a page, i.e.#{myComponent.myProperty}.  What is your goal?

[cyberoblivion]

I guess the idea is to dynamically set what #{myComponent} resolves to at runtime based on application configuration data from a database rather than a static components.xml file or annotations on pojos.

[samdoyle]

Have a component that is @In @Out set it to the value?
Have an accessor method which retrieves the component you need when needed? e.g. #{componentCreator.getComponent(whatever)}

[dhinojosa]

I was going to go along with Samuel's answer except that I am not a fan of @Out, but to each their own. 

My solution, if interested, would be:

@Name("componentCreator")
public void Parent {

    private Map<String, Object> children;

    @In("componentChildMap")
    public void setChildren(Map<String, Object> children) {
         this.children = children;
    }

    public void makeBabies() {
        this.children.add(....)
        this.children.remove(...)
    }
}

where you can get the components you need by:

#{componentChildMap.get['blah'].someProperty}