code: public java.util.List<Constraint> getConstraint() {  
  		if (myConstraint == null) {
  			myConstraint = new java.util.ArrayList<Constraint>();
  		}
  		return myConstraint;
  	}
docs: Gets the value(s) for <b>constraint</b> ().
  creating it if it does
  not exist. Will not return <code>null</code>.
  
  <p>
  <b>Definition:</b>
  Formal constraints such as co-occurrence and other constraints that can be computationally evaluated within the context of the instance
  </p>