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

Constructors

Constructor and Description
NestedIterationNode(int[] nestingOrder) Ctor.

Method Summary

Modifier and Type	Method and Description
void	addChildNode(QueryPlanNode childNode) Adds a child node.
void	addIndexes(HashSet<TableLookupIndexReqKey> usedIndexes)
protected LinkedList<QueryPlanNode>	getChildNodes() Returns list of child nodes.
ExecNode	makeExec(String statementName, int statementId, Annotation[] annotations, Map<TableLookupIndexReqKey,EventTable>[] indexPerStream, EventType[] streamTypes, Viewable[] streamViews, HistoricalStreamIndexList[] historicalStreamIndexList, VirtualDWView[] viewExternal, 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 LinkedList<QueryPlanNode> getChildNodes()

Returns list of child nodes.

Returns:

list of child nodes

makeExec

public ExecNode makeExec(String statementName,
                         int statementId,
                         Annotation[] annotations,
                         Map<TableLookupIndexReqKey,EventTable>[] indexPerStream,
                         EventType[] streamTypes,
                         Viewable[] streamViews,
                         HistoricalStreamIndexList[] historicalStreamIndexList,
                         VirtualDWView[] viewExternal,
                         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 - view

tableSecondaryIndexLocks - locks

Returns:

execution node matching spec

addIndexes

public void addIndexes(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