Constraint toConstraint(final Collection4 constraints) {
if (constraints.size() == 1) {
return (Constraint) constraints.singleElement();
} else if (constraints.size() > 0) {
Constraint[] constraintArray = new Constraint[constraints.size()];
constraints.toArray(constraintArray);
return new QConstraints(_trans, constraintArray);
}
return null;
}
private Constraint singleConstraint() {
return (Constraint) i_constraints.singleElement();
}