protected void UnprepareRootPlan()
{
if (_rootPlan != null)
{
_process.UnprepareExpression(_rootPlan);
_rootParams = null;
_rootPlan = null;
}
}
public void Unprepare()
{
if (_plan != null)
{
if (_cursor != null)
{
try
{
_process.CloseCursor(_cursor);
}
finally
{
_cursor = null;
}
}
else
{
try
{
_process.UnprepareExpression(_plan);
}
finally
{
_plan = null;
}
}
}
}
/// <summary>Evaluates the given expression using the given process and returns the result.</summary>
public DAE.Runtime.Data.IDataValue EvaluateRaw(IServerProcess process, string expression, DAE.Runtime.DataParams paramsValue)
{
CheckActive();
if (process == null)
{
process = UtilityProcess;
}
IServerExpressionPlan plan = process.PrepareExpression(expression, paramsValue);
try
{
return(plan.Evaluate(paramsValue));
}
finally
{
process.UnprepareExpression(plan);
}
}
/// <summary>Opens a cursor on the given expression using the given process.</summary>
public IServerCursor OpenCursor(IServerProcess process, string expression, DAE.Runtime.DataParams paramsValue)
{
CheckActive();
if (process == null)
{
process = UtilityProcess;
}
IServerExpressionPlan plan = process.PrepareExpression(expression, paramsValue);
try
{
return(plan.Open(paramsValue));
}
catch
{
process.UnprepareExpression(plan);
throw;
}
}
public DAE.Runtime.Data.Scalar EvaluateScalar(IServerProcess process, string expression, DAE.Runtime.DataParams paramsValue)
{
if (process == null)
{
process = DataSession.UtilityProcess;
}
DAE.IServerExpressionPlan plan = process.PrepareExpression(expression, paramsValue);
try
{
ErrorList errors = new ErrorList();
errors.AddRange(plan.Messages);
ReportErrors(null, errors);
return((DAE.Runtime.Data.Scalar)plan.Evaluate(paramsValue));
}
finally
{
process.UnprepareExpression(plan);
}
}
public void UnPrepare()
{
_preparedCommandText = String.Empty;
_dAERuntimeParams = null;
if (_plan != null)
{
IServerProcess planProcess = _plan.Process;
if (planProcess != null)
{
if (_plan is IServerExpressionPlan)
{
planProcess.UnprepareExpression((IServerExpressionPlan)_plan);
}
else
{
planProcess.UnprepareStatement((IServerStatementPlan)_plan);
}
}
_plan = null;
}
}