com.espertech.esper.core.context.subselect

Class SubSelectActivationCollection

java.lang.Object

com.espertech.esper.core.context.subselect.SubSelectActivationCollection

public class SubSelectActivationCollection
extends Object

Holds stream information for subqueries.

Constructor Summary

Constructors

Constructor and Description
SubSelectActivationCollection() Ctor.

Method Summary

Modifier and Type	Method and Description
void	add(ExprSubselectNode subselectNode, SubSelectActivationHolder holder) Add lookup.
EventType	getRootViewableType(ExprSubselectNode subqueryNode) Returns the lookup viewable, child-most view.
int	getStreamNumber(ExprSubselectNode subqueryNode) Returns stream number.
Map<ExprSubselectNode,SubSelectActivationHolder>	getSubqueries()
SubSelectActivationHolder	getSubSelectHolder(ExprSubselectNode subselectNode)
ViewFactoryChain	getViewFactoryChain(ExprSubselectNode subqueryNode) Returns the lookup's view factory chain.

Methods inherited from class java.lang.Object

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

Constructor Detail

SubSelectActivationCollection

public SubSelectActivationCollection()

Ctor.

Method Detail

add

public void add(ExprSubselectNode subselectNode,
                SubSelectActivationHolder holder)

Add lookup.

Parameters:

subselectNode - is the subselect expression node

holder - information holder for subselects

getSubSelectHolder

public SubSelectActivationHolder getSubSelectHolder(ExprSubselectNode subselectNode)

getStreamNumber

public int getStreamNumber(ExprSubselectNode subqueryNode)

Returns stream number.

Parameters:

subqueryNode - is the lookup node's stream number

Returns:

number of stream

getRootViewableType

public EventType getRootViewableType(ExprSubselectNode subqueryNode)

Returns the lookup viewable, child-most view.

Parameters:

subqueryNode - is the expression node to get this for

Returns:

child viewable

getViewFactoryChain

public ViewFactoryChain getViewFactoryChain(ExprSubselectNode subqueryNode)

Returns the lookup's view factory chain.

Parameters:

subqueryNode - is the node to look for

Returns:

view factory chain

getSubqueries

public Map<ExprSubselectNode,SubSelectActivationHolder> getSubqueries()