public void FetchInto(FetchContext context)
{
if (context == null)
{
throw new ArgumentNullException("context");
}
if (!CursorInfo.IsScroll &&
context.Direction != FetchDirection.Next)
{
throw new ArgumentException(String.Format("Cursor '{0}' is not SCROLL: can fetch only NEXT value.", CursorInfo.CursorName));
}
var table = State.Result;
if (!CursorInfo.IsInsensitive)
{
table = Evaluate(context.Request, State.OpenArguments);
}
var fetchRow = State.FetchRowFrom(table, context.Direction, context.Offset);
if (context.IsGlobalReference)
{
var reference = ((SqlReferenceExpression)context.Reference).ReferenceName;
FetchIntoReference(context.Request, fetchRow, reference);
}
else if (context.IsVariableReference)
{
var varName = ((SqlVariableReferenceExpression)context.Reference).VariableName;
FetchIntoVatiable(context.Request, fetchRow, varName);
}
}
public void FetchInto(FetchContext context)
{
if (context == null)
{
throw new ArgumentNullException("context");
}
var fetchRow = Fetch(context.Direction, context.Offset);
if (context.IsGlobalReference)
{
var reference = ((SqlReferenceExpression)context.Reference).ReferenceName;
FetchIntoReference(fetchRow, reference);
}
else if (context.IsVariableReference)
{
var varNames = context.VariableNames;
FetchIntoVatiable(fetchRow, varNames);
}
}
public void FetchInto(FetchContext context)
{
if (context == null)
throw new ArgumentNullException("context");
if (!CursorInfo.IsScroll &&
context.Direction != FetchDirection.Next)
throw new ArgumentException(String.Format("Cursor '{0}' is not SCROLL: can fetch only NEXT value.", CursorInfo.CursorName));
var table = State.Result;
if (!CursorInfo.IsInsensitive)
table = Evaluate(context.Request, State.OpenArguments);
var fetchRow = State.FetchRowFrom(table, context.Direction, context.Offset);
if (context.IsGlobalReference) {
var reference = ((SqlReferenceExpression) context.Reference).ReferenceName;
FetchIntoReference(context.Request, fetchRow, reference);
} else if (context.IsVariableReference) {
var varName = ((SqlVariableReferenceExpression) context.Reference).VariableName;
FetchIntoVatiable(context.Request, fetchRow, varName);
}
}
protected override void ExecuteStatement(ExecutionContext context)
{
if (!context.Request.Context.CursorExists(CursorName))
throw new StatementException(String.Format("The cursor '{0}' was not found in the current context.", CursorName));
var cursor = context.Request.Context.FindCursor(CursorName);
if (cursor == null)
throw new StatementException(String.Format("The cursor '{0}' was not found in the current context.", CursorName));
if (cursor.Status == CursorStatus.Closed)
throw new StatementException(String.Format("The cursor '{0}' was already closed.", CursorName));
int offset = -1;
if (OffsetExpression != null)
offset = OffsetExpression.EvaluateToConstant(context.Request, null);
var fetchContext = new FetchContext(context.Request, Direction, ReferenceExpression);
if (Direction == FetchDirection.Absolute ||
Direction == FetchDirection.Relative)
fetchContext.Offset = offset;
cursor.FetchInto(fetchContext);
}
