com.espertech.esper.common.internal.epl.join.queryplan

Class LookupInstructionQueryPlanNode

java.lang.Object

com.espertech.esper.common.internal.epl.join.queryplan.QueryPlanNode

com.espertech.esper.common.internal.epl.join.queryplan.LookupInstructionQueryPlanNode

public class LookupInstructionQueryPlanNode
extends QueryPlanNode

Query plan for executing a set of lookup instructions and assembling an end result via a set of assembly instructions.

Constructor Summary

Constructors

Constructor and Description
LookupInstructionQueryPlanNode(int rootStream, String rootStreamName, int numStreams, boolean[] requiredPerStream, LookupInstructionPlan[] lookupInstructions, BaseAssemblyNodeFactory[] assemblyInstructionFactories) Ctor.

Method Summary

Modifier and Type	Method and Description
LookupInstructionPlan[]	getLookupInstructions()
int	getNumStreams()
ExecNode	makeExec(AgentInstanceContext agentInstanceContext, Map<TableLookupIndexReqKey,EventTable>[] indexesPerStream, EventType[] streamTypes, Viewable[] streamViews, VirtualDWView[] viewExternal, Lock[] tableSecondaryIndexLocks)

Methods inherited from class java.lang.Object

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

Constructor Detail

LookupInstructionQueryPlanNode

public LookupInstructionQueryPlanNode(int rootStream,
                                      String rootStreamName,
                                      int numStreams,
                                      boolean[] requiredPerStream,
                                      LookupInstructionPlan[] lookupInstructions,
                                      BaseAssemblyNodeFactory[] assemblyInstructionFactories)

Ctor.

Parameters:

rootStream - is the stream supplying the lookup event

rootStreamName - is the name of the stream supplying the lookup event

numStreams - is the number of streams

lookupInstructions - is a list of lookups to perform

requiredPerStream - indicates which streams are required and which are optional in the lookup

assemblyInstructionFactories - is the bottom-up assembly factory nodes to assemble a lookup result nodes

Method Detail

makeExec

public ExecNode makeExec(AgentInstanceContext agentInstanceContext,
                         Map<TableLookupIndexReqKey,EventTable>[] indexesPerStream,
                         EventType[] streamTypes,
                         Viewable[] streamViews,
                         VirtualDWView[] viewExternal,
                         Lock[] tableSecondaryIndexLocks)

Specified by:

makeExec in class QueryPlanNode

getNumStreams

public int getNumStreams()

getLookupInstructions

public LookupInstructionPlan[] getLookupInstructions()