}
return null;
}
private void visitSingleFieldConstraint( final SingleFieldConstraint sfc ) {
builder.addGenerator( new TypeField( new ValueFieldIndexTerm( sfc.getFieldName() ),
new ValueTypeIndexTerm( getFullyQualifiedClassName( sfc.getFieldType() ) ),
new ValueTypeIndexTerm( getFullyQualifiedClassName( sfc.getFactType() ) ) ) );
if ( sfc.getConnectives() != null ) {
for ( int i = 0; i < sfc.getConnectives().length; i++ ) {
visit( sfc.getConnectives()[ i ] );