Creating New Instances Dynamically

Sometimes the type of an object is decided at runtime.

In this example the model consists of a single interface, and no implementation. The user is expected to choose the actual implementation to use.

Model

public interface ModelObject {

   public String getName();

   public void setName(final String name);

}

Component

public interface ModelObjectBuilder<V extends ModelObject> {

   public V getModelObject(final String name);

}