1 package org.omg.uml.behavioralelements.collaborations;2 3 public interface APredecessorSuccessor extends javax.jmi.reflect.RefAssociation {4 public boolean exists(org.omg.uml.behavioralelements.collaborations.Message predecessor, org.omg.uml.behavioralelements.collaborations.Message successor);5 public java.util.Collection getPredecessor(org.omg.uml.behavioralelements.collaborations.Message successor);6 public java.util.Collection getSuccessor(org.omg.uml.behavioralelements.collaborations.Message predecessor);7 public boolean add(org.omg.uml.behavioralelements.collaborations.Message predecessor, org.omg.uml.behavioralelements.collaborations.Message successor);8 public boolean remove(org.omg.uml.behavioralelements.collaborations.Message predecessor, org.omg.uml.behavioralelements.collaborations.Message successor);9 }10