public override string[][] GetUniqueIndexes(FireAndForgetInstance processorInstance)
{
if (processorInstance == null)
{
return(new string[0][]);
}
return(_namedWindowProcessor.UniqueIndexes);
}
private ICollection <EventBean> GetStreamSnapshotInstance(
int streamNum,
IList <ExprNode> filterExpressions,
FireAndForgetInstance processorInstance)
{
var coll = processorInstance.SnapshotBestEffort(this, _filters[streamNum], _statementSpec.Annotations);
if (filterExpressions.Count != 0)
{
coll = GetFiltered(coll, filterExpressions);
}
return(coll);
}
public abstract string[][] GetUniqueIndexes(FireAndForgetInstance processorInstance);
public EventBean[] Execute(FireAndForgetInstance fireAndForgetProcessorInstance)
{
return(fireAndForgetProcessorInstance.ProcessInsert(this));
}
/// <summary>
/// Executes the prepared query.
/// </summary>
/// <returns>query results</returns>
public EPPreparedQueryResult Execute(ContextPartitionSelector[] contextPartitionSelectors)
{
try {
if (contextPartitionSelectors != null && contextPartitionSelectors.Length != 1)
{
throw new ArgumentException("Number of context partition selectors must be one");
}
var optionalSingleSelector = contextPartitionSelectors != null && contextPartitionSelectors.Length > 0 ? contextPartitionSelectors[0] : null;
// validate context
if (Processor.ContextName != null &&
StatementSpec.OptionalContextName != null &&
!Processor.ContextName.Equals(StatementSpec.OptionalContextName))
{
throw new EPException("Context for named window is '" + Processor.ContextName + "' and query specifies context '" + StatementSpec.OptionalContextName + "'");
}
// handle non-specified context
if (StatementSpec.OptionalContextName == null)
{
FireAndForgetInstance processorInstance = Processor.GetProcessorInstanceNoContext();
if (processorInstance != null)
{
var rows = Executor.Execute(processorInstance);
if (rows != null && rows.Length > 0)
{
Dispatch();
}
return(new EPPreparedQueryResult(Processor.EventTypePublic, rows));
}
}
// context partition runtime query
var agentInstanceIds = EPPreparedExecuteMethodHelper.GetAgentInstanceIds(Processor, optionalSingleSelector, Services.ContextManagementService, Processor.ContextName);
// collect events and agent instances
if (agentInstanceIds.IsEmpty())
{
return(new EPPreparedQueryResult(Processor.EventTypeResultSetProcessor, CollectionUtil.EVENTBEANARRAY_EMPTY));
}
if (agentInstanceIds.Count == 1)
{
int agentInstanceId = agentInstanceIds.First();
var processorInstance = Processor.GetProcessorInstanceContextById(agentInstanceId);
var rows = Executor.Execute(processorInstance);
if (rows.Length > 0)
{
Dispatch();
}
return(new EPPreparedQueryResult(Processor.EventTypeResultSetProcessor, rows));
}
var allRows = new ArrayDeque <EventBean>();
foreach (int agentInstanceId in agentInstanceIds)
{
var processorInstance = Processor.GetProcessorInstanceContextById(agentInstanceId);
if (processorInstance != null)
{
var rows = Executor.Execute(processorInstance);
allRows.AddAll(rows);
}
}
if (allRows.Count > 0)
{
Dispatch();
}
return(new EPPreparedQueryResult(Processor.EventTypeResultSetProcessor, allRows.ToArray()));
}
finally {
if (HasTableAccess)
{
Services.TableService.TableExprEvaluatorContext.ReleaseAcquiredLocks();
}
}
}
public override string[][] GetUniqueIndexes(FireAndForgetInstance processorInstance)
{
return(_tableMetadata.UniqueIndexes);
}