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package org.netbeans.modules.vmd.api.model;
/**
* This class is designed for a privilege access to component. Each component could have a set of presenters attached to it.
* The presenters are created by ComponentDescriptor.createPresenters method on behalf of a component. The createPresenters
* method is called when a descriptor is reassigned to a component or a new component is created. The creation of a presenter
* basically means nothing and should be as fast as possible.
* <p>
* If you want to have a presenter that will react on changes in document, you should use DynamicPresenter.
*
* @author David Kaspar
*/
public abstract class Presenter {
private DesignComponent component;
/**
* Creates a new presenter
*/
protected Presenter () {
}
/**
* Returns a component where the presenter is attached to.
* @return the component, null if not attached
*/
protected final DesignComponent getComponent () {
return component;
}
void setNotifyAttached (DesignComponent component) {
assert Debug.isFriend (ListenerManager.class, "addComponentDescriptorChanged") || Debug.isFriend (DynamicPresenter.class, "setNotifyAttached"); // NOI18N
assert this.component == null && component != null;
this.component = component;
}
void setNotifyDetached (DesignComponent component) {
assert Debug.isFriend (ListenerManager.class, "fireEventCore") || Debug.isFriend (DynamicPresenter.class, "setNotifyDetached"); // NOI18N
assert this.component == component;
this.component = null;
}
/**
/**
* Returns string identification of the presenter.
* @return the string
*/
@Override
public String toString () {
return (component != null ? component.toString () : "<unassigned>") + "#" + getClass ().getSimpleName (); // NOI18N
}
}
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