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

java.lang.Object
  com.espertech.esper.epl.join.plan.QueryPlanNode
      com.espertech.esper.epl.join.plan.NestedIterationNode

public class NestedIterationNode
extends QueryPlanNode

Plan to perform a nested iteration over child nodes.

Constructor Summary

NestedIterationNode(int[] nestingOrder)
Ctor.

Method Summary

void	addChildNode(QueryPlanNode childNode) Adds a child node.
void	addIndexes(java.util.HashSet<TableLookupIndexReqKey> usedIndexes)
protected java.util.LinkedList<QueryPlanNode>	getChildNodes() Returns list of child nodes.
ExecNode	makeExec(java.lang.String statementName, java.lang.String statementId, java.lang.annotation.Annotation[] annotations, java.util.Map<TableLookupIndexReqKey,EventTable>[] indexPerStream, EventType[] streamTypes, Viewable[] streamViews, HistoricalStreamIndexList[] historicalStreamIndexList, VirtualDWView[] viewExternal, java.util.concurrent.locks.Lock[] tableSecondaryIndexLocks) Make execution node from this specification.
void	print(IndentWriter indentWriter) Print a long readable format of the query node to the supplied PrintWriter.

Methods inherited from class com.espertech.esper.epl.join.plan.QueryPlanNode

print

Methods inherited from class java.lang.Object

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

Constructor Detail

NestedIterationNode

public NestedIterationNode(int[] nestingOrder)

Ctor.

Parameters:

nestingOrder - - order of streams in nested iteration

Method Detail

addChildNode

public final void addChildNode(QueryPlanNode childNode)

Adds a child node.

Parameters:

childNode - is the child evaluation tree node to add

getChildNodes

protected final java.util.LinkedList<QueryPlanNode> getChildNodes()

Returns list of child nodes.

Returns:

list of child nodes

makeExec

public ExecNode makeExec(java.lang.String statementName,
                         java.lang.String statementId,
                         java.lang.annotation.Annotation[] annotations,
                         java.util.Map<TableLookupIndexReqKey,EventTable>[] indexPerStream,
                         EventType[] streamTypes,
                         Viewable[] streamViews,
                         HistoricalStreamIndexList[] historicalStreamIndexList,
                         VirtualDWView[] viewExternal,
                         java.util.concurrent.locks.Lock[] tableSecondaryIndexLocks)

Description copied from class: QueryPlanNode

Make execution node from this specification.

Specified by:

makeExec in class QueryPlanNode

Parameters:

statementName - statement name

statementId - statement id

annotations - annotations

indexPerStream - - tables build for each stream

streamTypes - - event type of each stream

streamViews - - viewable per stream for access to historical data

historicalStreamIndexList - index management for historical streams

viewExternal - @return execution node matching spec

addIndexes

public void addIndexes(java.util.HashSet<TableLookupIndexReqKey> usedIndexes)

Specified by:

addIndexes in class QueryPlanNode

print

public void print(IndentWriter indentWriter)

Description copied from class: QueryPlanNode

Print a long readable format of the query node to the supplied PrintWriter.

Specified by:

print in class QueryPlanNode

Parameters:

indentWriter - is the indentation writer to print to