BetaNodeFieldConstraint c = betaCconstraints[0];
if ( IndexUtil.isIndexable(c, getType()) && ((IndexableConstraint) c).isUnification() ) {
if ( this.constraints instanceof SingleBetaConstraints ) {
this.constraints = new SingleNonIndexSkipBetaConstraints( (SingleBetaConstraints) this.constraints );
} else if ( this.constraints instanceof DoubleBetaConstraints ) {
this.constraints = new DoubleNonIndexSkipBetaConstraints( (DoubleBetaConstraints) this.constraints );
} else if ( this.constraints instanceof TripleBetaConstraints ) {
this.constraints = new TripleNonIndexSkipBetaConstraints( (TripleBetaConstraints) this.constraints );
} else if ( this.constraints instanceof QuadroupleBetaConstraints ) {
this.constraints = new QuadroupleNonIndexSkipBetaConstraints( (QuadroupleBetaConstraints) this.constraints );
}