public class ResultSetProcessorFactoryFactory extends Object
The instance produced by the factory depends on the presence of aggregation functions in the select list, the presence and nature of the group-by clause.
In case (1) and (2) there are no aggregation functions in the select clause.
Case (3) is without group-by and with aggregation functions and without non-aggregated properties in the select list:
select sum(volume). Always produces one row for new and old data, aggregates without grouping.
Case (4) is without group-by and with aggregation functions but with non-aggregated properties in the select list:
select price, sum(volume). Produces a row for each event, aggregates without grouping.
Case (5) is with group-by and with aggregation functions and all selected properties are grouped-by. in the select list:
select customerId, sum(volume) group by customerId. Produces a old and new data row for each group changed, aggregates with grouping, see
ResultSetProcessorRowPerGroup
Case (6) is with group-by and with aggregation functions and only some selected properties are grouped-by. in the select list:
select customerId, supplierId, sum(volume) group by customerId. Produces row for each event, aggregates with grouping.
| Constructor and Description |
|---|
ResultSetProcessorFactoryFactory() |
| Modifier and Type | Method and Description |
|---|---|
static ResultSetProcessorFactoryDesc |
getProcessorPrototype(StatementSpecCompiled statementSpec,
StatementContext stmtContext,
StreamTypeService typeService,
ViewResourceDelegateUnverified viewResourceDelegate,
boolean[] isUnidirectionalStream,
boolean allowAggregation,
ContextPropertyRegistry contextPropertyRegistry,
SelectExprProcessorDeliveryCallback selectExprProcessorCallback,
ConfigurationInformation configurationInformation,
ResultSetProcessorHelperFactory resultSetProcessorHelperFactory,
boolean isFireAndForget,
boolean isOnSelect) |
public static ResultSetProcessorFactoryDesc getProcessorPrototype(StatementSpecCompiled statementSpec, StatementContext stmtContext, StreamTypeService typeService, ViewResourceDelegateUnverified viewResourceDelegate, boolean[] isUnidirectionalStream, boolean allowAggregation, ContextPropertyRegistry contextPropertyRegistry, SelectExprProcessorDeliveryCallback selectExprProcessorCallback, ConfigurationInformation configurationInformation, ResultSetProcessorHelperFactory resultSetProcessorHelperFactory, boolean isFireAndForget, boolean isOnSelect) throws ExprValidationException
ExprValidationException