How to use

TypedValue$UnaryMathOpValue$UnaryOp

in

ch.epfl.labos.iu.orm.queryll2.symbolic

public String toString() 
{ 
  return "(" + op.getOpString() + " " + operand.toString() + ")";
}
@Override public <I,O,E extends Exception> O visit(TypedValueVisitor<I,O,E> visitor, I input) throws E

@Override public ColumnExpressions<?> unaryMathOpValue(TypedValue.UnaryMathOpValue val, SymbExPassDown in) throws TypedValueVisitorException
{
 SymbExPassDown passdown = SymbExPassDown.with(val, false);
 ColumnExpressions<?> left = val.operand.visit(this, passdown);
 return ColumnExpressions.singleColumn(left.reader,
    UnaryExpression.prefix(val.op.getOpString(), left.getOnlyColumn())); 
}

@Override
public int hashCode()
{
  final int prime = 31;
  int result = super.hashCode();
  result = prime * result + ((op == null) ? 0 : op.hashCode());
  return result;
}
@Override