public IQueryCondition CreateQueryCondition(
SampleStateKind sampleStates,
ViewStateKind viewStates,
InstanceStateKind instanceStates,
string queryExpression,
params string[] queryParameters)
{
IQueryCondition queryCondition = null;
using (SequenceStringMarshaler marshaler = new SequenceStringMarshaler())
{
if (marshaler.CopyIn(queryParameters) == DDS.ReturnCode.Ok)
{
IntPtr gapiPtr = Gapi.DataReader.create_querycondition(
GapiPeer,
sampleStates,
viewStates,
instanceStates,
queryExpression,
marshaler.GapiPtr);
if (gapiPtr != IntPtr.Zero)
{
queryCondition = new QueryCondition(gapiPtr);
}
}
}
return queryCondition;
}
public IQueryCondition CreateQueryCondition(
SampleStateKind sampleStates,
ViewStateKind viewStates,
InstanceStateKind instanceStates,
string queryExpression,
params string[] queryParameters)
{
QueryCondition queryCondition = null;
ReturnCode result = DDS.ReturnCode.AlreadyDeleted;
IntPtr uQuery;
ReportStack.Start();
lock (this)
{
if (this.rlReq_isAlive)
{
using (SequenceStringToArrMarshaler marshaler = new SequenceStringToArrMarshaler())
{
result = marshaler.CopyIn(queryParameters);
if (result == ReturnCode.Ok)
{
if (SampleStateMaskIsValid(sampleStates) &&
ViewStateMaskIsValid(viewStates) &&
InstanceStateMaskIsValid(instanceStates))
{
uint stateMask = StateMask(sampleStates, viewStates, instanceStates);
uQuery = User.Query.New(
rlReq_UserPeer,
null,
queryExpression,
marshaler.UserPtr,
queryParameters != null ? (uint)queryParameters.Length : 0,
stateMask);
if (uQuery != IntPtr.Zero)
{
queryCondition = new QueryCondition(
this,
sampleStates,
viewStates,
instanceStates,
queryExpression,
queryParameters);
result = queryCondition.init(uQuery);
if (result == ReturnCode.Ok)
{
conditionList.Add(queryCondition);
}
else
{
ReportStack.Report(result, "Could not create QueryCondition.");
queryCondition = null;
}
}
else
{
result = DDS.ReturnCode.Error;
ReportStack.Report(result, "Unable to create QueryCondition in kernel.");
}
}
else
{
result = DDS.ReturnCode.BadParameter;
ReportStack.Report(result, "One mor more of your SampleState/ViewState/InstanceState masks are invalid.");
}
}
}
}
}
ReportStack.Flush(this, result != ReturnCode.Ok);
return(queryCondition);
}
