public IOqlSyntaxContext InitializeFor(Expression expression)
{
if (expression.NodeType == ExpressionType.Call)
{
m_call_result.Command = OqlCommandToken.Exec;
MethodCallExpression methodCall = expression as MethodCallExpression;
if (methodCall.IsCalled(OqlInsertClause.Insert))
{
return(ForInsert());
}
if (methodCall.IsCalled(OqlUpdateClause.Update))
{
return(ForUpdate());
}
if (methodCall.IsCalled(OqlDeleteClause.Delete))
{
return(ForDelete());
}
}
m_call_result.Command = OqlCommandToken.Select;
return(ForSelect());
}
public override void ProcessMethodCall(IOqlSyntaxContext callContext, MethodCallExpression methodCall)
{
if (methodCall.IsCalled(Skip))
{
callContext.CallResult.Offset = (int)methodCall.GetArgument(1).GetValue();
return;
}
if (methodCall.IsCalled(Take))
{
callContext.CallResult.Size = (int)methodCall.GetArgument(1).GetValue();
return;
}
if (methodCall.IsCalled(ElementAt))
{
callContext.CallResult.Command = OqlCommandToken.ElementAt;
callContext.CallResult.ElementIndex = (int)methodCall.GetArgument(1).GetValue();
return;
}
if (methodCall.IsCalled(ElementAtOrDefault))
{
callContext.CallResult.ElementIndex = (int)methodCall.GetArgument(1).GetValue();
callContext.CallResult.Command = OqlCommandToken.ElementAt | OqlCommandToken.DefaultFlag;
return;
}
ProcessNavigate(callContext, methodCall);
}
public override void ProcessMethodCall(IOqlSyntaxContext callContext, MethodCallExpression methodCall)
{
if (methodCall.IsCalled(OuterJoin))
{
}
if (methodCall.IsCalled(InnerJoin))
{
}
}
public override void ProcessMethodCall(IOqlSyntaxContext callContext, MethodCallExpression methodCall)
{
if (Distinct.Equals(methodCall))
{
m_has_distinct = true;
return;
}
m_select_expression = methodCall.GetArgument(1);
callContext.CallResult.ResultType = methodCall.Type;
if (m_select_expression.NodeType == ExpressionType.MemberInit || m_select_expression.NodeType == ExpressionType.New)
{
return;
}
if (methodCall.IsCalled(Min))
{
visit_to_aggregate = (x, y) => callContext.AggregateFormatter.FormatMin(x, y);
return;
}
if (methodCall.IsCalled(Max))
{
visit_to_aggregate = (x, y) => callContext.AggregateFormatter.FormatMax(x, y);
return;
}
if (methodCall.IsCalled("Average"))
{
visit_to_aggregate = (x, y) => callContext.AggregateFormatter.FormatAverage(x, y);
return;
}
if (methodCall.IsCalled("Sum"))
{
visit_to_aggregate = (x, y) => callContext.AggregateFormatter.FormatSum(x, y);
return;
}
if (methodCall.IsCalledOr(Count, LongCount))
{
callContext.CallResult.Command = OqlCommandToken.Scalar;
}
visit_to_aggregate = null;
}
public static bool IsCalledOr(this MethodCallExpression @this, params IMethod[] methods)
{
foreach (IMethod m in methods)
{
if (@this.IsCalled(m))
{
return(true);
}
}
return(false);
}
public override void ProcessMethodCall(IOqlSyntaxContext callContext, MethodCallExpression methodCall)
{
if (methodCall.IsCalled(SkipWhile))
{
AndAlso(Expression.Not(methodCall.GetArgument(1)));
return;
}
AndAlso(methodCall.GetArgument(1));
OqlNavigationClause.ProcessNavigate(callContext, methodCall);
}
