protected virtual void EmitIn(NPathInExpression inExpression)
{
EmitExpression(inExpression.TestExpression);
Write(" in ( "); // do not localize
foreach (IValue expression in inExpression.Values)
{
EmitExpression(expression);
if (expression != inExpression.Values[inExpression.Values.Count - 1])
Write(",");
}
Write(" ) ");
}
private SqlExpression EvalIn(NPathInExpression inExpression)
{
SqlSearchCondition search ;
if (noNext)
search = conditionChainOwner as SqlSearchCondition ;
else
search = conditionChainOwner.GetNextSqlSearchCondition() ;
noNext = false;
SqlExpression leftExpression = EvalExpression(inExpression.TestExpression );
SqlInPredicate predicate = search.GetSqlInPredicate(leftExpression) ;
foreach (IValue expression in inExpression.Values)
predicate.AddSqlInPredicateItem(EvalExpression(expression));
return predicate;
}
protected virtual bool EvalInExpression(object item, NPathInExpression inExpression)
{
object testValue = EvalValue(item, inExpression.TestExpression);
foreach (object expression in inExpression.Values)
{
object value = EvalValue(item, expression);
int res = Comparer.Default.Compare(testValue, value);
if (res == 0)
return true;
}
return false;
}
private IValue ParseInExpression(IValue leftOperand)
{
NPathInExpression inExpression = new NPathInExpression();
inExpression.TestExpression = leftOperand;
tokenizer.GetCurrentToken("in", "in");
tokenizer.MoveNext();
tokenizer.GetCurrentToken("(", "(");
do
{
tokenizer.MoveNext();
IValue expression = ParseExpression();
inExpression.Values.Add(expression);
} while (tokenizer.GetCurrentToken().IsType("comma"));
tokenizer.GetCurrentToken(")", ")");
tokenizer.MoveNext();
return inExpression;
}
