private MsgD WriteImmediateQueryResult(AbstractQueryResult queryResult, ObjectExchangeConfiguration
config)
{
IIntIterator4 idIterator = queryResult.IterateIDs();
MsgD message = BuildQueryResultMessage(0, idIterator, queryResult.Size(), config);
return(message);
}
protected MsgD WriteQueryResult(AbstractQueryResult queryResult, QueryEvaluationMode
evaluationMode, ObjectExchangeConfiguration config)
{
if (evaluationMode == QueryEvaluationMode.Immediate)
{
return(WriteImmediateQueryResult(queryResult, config));
}
return(WriteLazyQueryResult(queryResult, config));
}
public static IObjectExchangeStrategy ForConfig(ObjectExchangeConfiguration config
)
{
if (config.prefetchDepth > 0)
{
return(new EagerObjectExchangeStrategy(config));
}
return(DeferredObjectExchangeStrategy.Instance);
}
public static IObjectExchangeStrategy ForConfig(ObjectExchangeConfiguration config
)
{
if (config.prefetchDepth > 0)
{
return new EagerObjectExchangeStrategy(config);
}
return DeferredObjectExchangeStrategy.Instance;
}
private MsgD BuildQueryResultMessage(int queryResultId, IIntIterator4 ids, int maxCount
, ObjectExchangeConfiguration config)
{
ByteArrayBuffer payload = ObjectExchangeStrategyFactory.ForConfig(config).Marshall
((LocalTransaction)Transaction(), ids, maxCount);
MsgD message = QueryResult.GetWriterForLength(Transaction(), Const4.IntLength + payload
.Length());
StatefulBuffer writer = message.PayLoad();
writer.WriteInt(queryResultId);
writer.WriteBytes(payload._buffer);
return(message);
}
private MsgD WriteLazyQueryResult(AbstractQueryResult queryResult, ObjectExchangeConfiguration
config)
{
int queryResultId = GenerateID();
int maxCount = Config().PrefetchObjectCount();
IIntIterator4 idIterator = queryResult.IterateIDs();
MsgD message = BuildQueryResultMessage(queryResultId, idIterator, maxCount, config
);
IServerMessageDispatcher serverThread = ServerMessageDispatcher();
serverThread.MapQueryResultToID(new LazyClientObjectSetStub(queryResult, idIterator
), queryResultId);
return(message);
}
