Package com.espertech.esper.epl.agg

Examples of com.espertech.esper.epl.agg.AggregationService

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    public SubSelectStrategyRealization instantiate(EPServicesContext services, Viewable viewableRoot, AgentInstanceContext agentInstanceContext, List<StopCallback> stopCallbackList) {

        SubselectAggregationPreprocessor subselectAggregationPreprocessor = null;

        AggregationService aggregationService = null;
        if (aggregationServiceFactory != null) {
            aggregationService = aggregationServiceFactory.getAggregationServiceFactory().makeService(agentInstanceContext, agentInstanceContext.getStatementContext().getMethodResolutionService());
            subselectAggregationPreprocessor = new SubselectAggregationPreprocessor(aggregationService, filterExprEval);
        }
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public class EPStatementStartMethodHelperUtil
{
    private static final Log log = LogFactory.getLog(EPStatementStartMethodHelperUtil.class);

    public static Pair<ResultSetProcessor, AggregationService> startResultSetAndAggregation(ResultSetProcessorFactoryDesc resultSetProcessorPrototype, AgentInstanceContext agentInstanceContext) {
        AggregationService aggregationService = null;
        if (resultSetProcessorPrototype.getAggregationServiceFactoryDesc() != null) {
            aggregationService = resultSetProcessorPrototype.getAggregationServiceFactoryDesc().getAggregationServiceFactory().makeService(agentInstanceContext, agentInstanceContext.getStatementContext().getMethodResolutionService());
        }

        OrderByProcessor orderByProcessor = null;
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            }
            ViewResourceDelegate viewResourceDelegateSubselect = new ViewResourceDelegateImpl(new ViewFactoryChain[] {viewFactoryChain}, statementContext);

            // Validate select expression
            SelectClauseSpecCompiled selectClauseSpec = subselect.getStatementSpecCompiled().getSelectClauseSpec();
            AggregationService aggregationService = null;
            List<ExprNode> selectExpressions = new ArrayList<ExprNode>();
            List<String> assignedNames = new ArrayList<String>();
            boolean isWildcard = false;
            boolean isStreamWildcard = false;
            if (selectClauseSpec.getSelectExprList().size() > 0)
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            }
        }

        // Construct the appropriate aggregation service
        boolean hasGroupBy = !groupByNodes.isEmpty();
        AggregationService aggregationService = AggregationServiceFactory.getService(selectAggregateExprNodes, havingAggregateExprNodes, orderByAggregateExprNodes, hasGroupBy, stmtContext.getMethodResolutionService(), stmtContext, statementSpecCompiled.getAnnotations(), stmtContext.getVariableService(), stmtContext.getStatementStopService(), typeService.getEventTypes().length > 1,
                statementSpecCompiled.getFilterRootNode(), statementSpecCompiled.getHavingExprRootNode());

        boolean useCollatorSort = false;
        if (stmtContext.getConfigSnapshot() != null)
        {
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Related Classes of com.espertech.esper.epl.agg.AggregationService

  • com.espertech.esper.core.context.factory.StatementAgentInstanceFactoryOnTrigger
  • com.espertech.esper.core.context.factory.StatementAgentInstanceFactorySelect
  • com.espertech.esper.core.context.subselect.SubSelectStrategyFactoryLocalViewPreloaded
  • com.espertech.esper.core.context.subselect.SubSelectStrategyFactoryNamedWinIndexShare
  • com.espertech.esper.core.EPStatementStartMethod
  • com.espertech.esper.core.start.EPStatementStartMethodHelperAssignExpr
  • com.espertech.esper.core.start.EPStatementStartMethodHelperUtil
  • com.espertech.esper.core.start.EPStatementStartMethodOnTrigger
  • com.espertech.esper.core.start.EPStatementStartMethodSelect
  • com.espertech.esper.epl.core.ResultSetProcessorFactory
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