com.espertech.esper.epl.join.plan
Class QueryPlanBuilder

java.lang.Object
  com.espertech.esper.epl.join.plan.QueryPlanBuilder

public class QueryPlanBuilder
extends java.lang.Object

Build a query plan based on filtering information.

Constructor Summary

QueryPlanBuilder()

Method Summary

static QueryPlan

getPlan(EventType[] typesPerStream, OuterJoinDesc[] outerJoinDescList, QueryGraph queryGraph, java.lang.String[] streamNames, HistoricalViewableDesc historicalViewableDesc, DependencyGraph dependencyGraph, HistoricalStreamIndexList[] historicalStreamIndexLists, StreamJoinAnalysisResult streamJoinAnalysisResult, boolean isQueryPlanLogging, java.lang.annotation.Annotation[] annotations, ExprEvaluatorContext exprEvaluatorContext) Build query plan using the filter.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

QueryPlanBuilder

public QueryPlanBuilder()

Method Detail

getPlan

public static QueryPlan getPlan(EventType[] typesPerStream,
                                OuterJoinDesc[] outerJoinDescList,
                                QueryGraph queryGraph,
                                java.lang.String[] streamNames,
                                HistoricalViewableDesc historicalViewableDesc,
                                DependencyGraph dependencyGraph,
                                HistoricalStreamIndexList[] historicalStreamIndexLists,
                                StreamJoinAnalysisResult streamJoinAnalysisResult,
                                boolean isQueryPlanLogging,
                                java.lang.annotation.Annotation[] annotations,
                                ExprEvaluatorContext exprEvaluatorContext)
                         throws ExprValidationException

Build query plan using the filter.

Parameters:

typesPerStream - - event types for each stream

outerJoinDescList - - list of outer join criteria, or null if there are no outer joins

queryGraph - - relationships between streams based on filter expressions and outer-join on-criteria

streamNames - - names of streams

dependencyGraph - - dependencies between historical streams

historicalStreamIndexLists - - index management, populated for the query plan

streamJoinAnalysisResult -

Returns:

query plan

Throws:

ExprValidationException - if the query plan fails