//
// Operator: Or, and, |
// +, -, *, div,
// >, >=, <, <=, =, !=
//
private IQuery ProcessOperator(Operator root, IQuery qyInput) {
IQuery ret = null;
switch (root.OperatorType) {
case Operator.Op.OR:
ret = new OrExpr(ProcessNode(root.Operand1, null),
ProcessNode(root.Operand2, null));
return ret;
case Operator.Op.AND :
ret = new AndExpr(ProcessNode(root.Operand1, null),
ProcessNode(root.Operand2, null));
return ret;
}
switch (root.ReturnType) {
case XPathResultType.Number:
ret = new NumericExpr(root.OperatorType,
ProcessNode(root.Operand1, null),
ProcessNode(root.Operand2, null));
return ret;
case XPathResultType.Boolean:
ret = new LogicalExpr(root.OperatorType,
ProcessNode(root.Operand1, null),
ProcessNode(root.Operand2, null));
return ret;
}
return ret;
}