if ( condition != null ) { this.hasCondition = true; this.condition = condition; } else if ( rto != null) { this.hasRelatedTo = true; this.rto = rto; }
this.condition = condition;
    public SelectExpression(int multiplicity, metamodel.Class theClass, Expression condition, RelatedToOperation rto ) {                super();         this.theClass = theClass;        this.multiplicity = multiplicity ;         if ( condition != null ) {            this.hasCondition = true;             this.condition = condition;          } else if ( rto != null) {            this.hasRelatedTo = true;             this.rto = rto;          }                    }