Package com.espertech.esper.epl.agg

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

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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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        // Determine context
        EPStatementStopMethod stopStatementMethod;
        EPStatementDestroyMethod destroyStatementMethod;
        Viewable finalViewable;
        AggregationService aggregationService;
        Map<ExprSubselectNode, SubSelectStrategyHolder> subselectStrategyInstances;
        Map<ExprPriorNode, ExprPriorEvalStrategy> priorStrategyInstances;
        Map<ExprPreviousNode, ExprPreviousEvalStrategy> previousStrategyInstances;

        // With context - delegate instantiation to context
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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);
            subselectAggregationPreprocessor = new SubselectAggregationPreprocessor(aggregationService, filterExprEval);
        }
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        Map<ExprPriorNode, ExprPriorEvalStrategy> priorNodeStrategies = EPStatementStartMethodHelperPrior.compilePriorNodeStrategies(viewResourceDelegate, new AgentInstanceViewFactoryChainContext[]{viewFactoryChainContext});

        // handle "previous" nodes and their strategies
        Map<ExprPreviousNode, ExprPreviousEvalStrategy> previousNodeStrategies = EPStatementStartMethodHelperPrevious.compilePreviousNodeStrategies(viewResourceDelegate, new AgentInstanceViewFactoryChainContext[]{viewFactoryChainContext});

        AggregationService aggregationService = null;
        if (aggregationServiceFactory != null) {
            aggregationService = aggregationServiceFactory.getAggregationServiceFactory().makeService(agentInstanceContext);

            if (!correlatedSubquery) {
                SubselectAggregatorView aggregatorView = new SubselectAggregatorView(aggregationService, filterExprEval, agentInstanceContext);
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        };

        Viewable finalView;
        ViewableActivationResult[] viewableActivationResult = new ViewableActivationResult[eventStreamParentViewableActivators.length];
        Map<ExprSubselectNode, SubSelectStrategyHolder> subselectStrategies;
        AggregationService aggregationService;
        Viewable[] streamViews;
        Map<ExprPriorNode, ExprPriorEvalStrategy> priorNodeStrategies;
        Map<ExprPreviousNode, ExprPreviousEvalStrategy> previousNodeStrategies;

        try {
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            }
        };

        View onExprView;
        Map<ExprSubselectNode, SubSelectStrategyHolder> subselectStrategies;
        AggregationService aggregationService = null;

        try {
            if (services.getSchedulableAgentInstanceDirectory() != null) {
                services.getSchedulableAgentInstanceDirectory().add(agentInstanceContext.getEpStatementAgentInstanceHandle());
            }
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        // perform start of hook-up to start
        Viewable finalViewable;
        EPStatementStopMethod stopStatementMethod;
        EPStatementDestroyMethod destroyStatementMethod;
        Map<ExprSubselectNode, SubSelectStrategyHolder> subselectStrategyInstances;
        AggregationService aggregationService;

        // With context - delegate instantiation to context
        if (statementSpec.getOptionalContextName() != null) {

            // use statement-wide agent-instance-specific aggregation service
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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);
        }

        OrderByProcessor orderByProcessor = null;
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            pair.getKey().setPriorStrategy(pair.getValue());
        }
    }

    public static ResultSetProcessor getAssignResultSetProcessor(AgentInstanceContext agentInstanceContext, ResultSetProcessorFactoryDesc resultSetProcessorPrototype) {
        AggregationService aggregationService = null;
        if (resultSetProcessorPrototype.getAggregationServiceFactoryDesc() != null) {
            aggregationService = resultSetProcessorPrototype.getAggregationServiceFactoryDesc().getAggregationServiceFactory().makeService(agentInstanceContext);
        }

        OrderByProcessor orderByProcessor = 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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