private StatementQueryOperatorExpression ConvertOperatorExpression(QueryTreeOperatorExpression source)
{
StatementQueryOperatorExpression result = new StatementQueryOperatorExpression();
foreach (var a in source.Arguments)
{
result.Arguments.Add(Convert(a));
}
result.OperatorID = source.OperatorID;
result.ResultDbType = source.ResultDbType;
result.ResultTypeID = source.ResultTypeID;
return(result);
}
private QueryTreeExpression Convert(ExpressionResult source)
{
if (source is ConstExpressionResult)
{
var r = (ConstExpressionResult)source;
return(new QueryTreeConstExpression()
{
DbType = r.DbType, TypeID = r.TypeID
});
}
else if (source is AttributeExpressionResult)
{
var r = (AttributeExpressionResult)source;
return(new QueryTreeAttributeExpression()
{
DbType = r.DbType, TypeID = r.TypeID, AttributeNumber = r.AttributeNumber, RelationID = r.RelationID
});
}
else if (source is FunctionExpressionResult)
{
var r = (FunctionExpressionResult)source;
var result = new QueryTreeFunctionExpression()
{
ResultDbType = r.ResultDbType, ResultTypeID = r.ResultTypeID
};
foreach (var a in r.Arguments)
{
result.Arguments.Add(Convert(a));
}
return(result);
}
else if (source is OperatorExpressionResult)
{
var r = (OperatorExpressionResult)source;
var result = new QueryTreeOperatorExpression()
{
OperatorID = r.OperatorID, ResultDbType = r.ResultDbType, ResultTypeID = r.ResultTypeID
};
foreach (var a in r.Arguments)
{
result.Arguments.Add(Convert(a));
}
return(result);
}
else if (source is AggregateExpressionResult)
{
var r = (AggregateExpressionResult)source;
var result = new QueryTreeAggregateExpression();
foreach (var a in r.Arguments)
{
result.Arguments.Add(Convert(a));
}
return(result);
}
else if (source is BooleanExpressionResult)
{
var r = (BooleanExpressionResult)source;
var result = new QueryTreeBooleanExpression()
{
Operator = r.Operator
};
foreach (var a in r.Arguments)
{
result.Arguments.Add(Convert(a));
}
return(result);
}
else if (source is NullTestExpressionResult)
{
var r = (NullTestExpressionResult)source;
return(new QueryTreeNullTestExpression()
{
Argument = Convert(r.Argument), TestType = Convert(r.TestType)
});
}
return(new QueryTreeUnknownExpression());
}
