com.espertech.esper.rowregex
Class RegexPartitionStateRepoGroup

java.lang.Object
  com.espertech.esper.rowregex.RegexPartitionStateRepoGroup

All Implemented Interfaces:

RegexPartitionStateRepo

public class RegexPartitionStateRepoGroup
extends java.lang.Object
implements RegexPartitionStateRepo

Partition-by implementation for partition state.

Field Summary

static int

INITIAL_COLLECTION_MIN Empty state collection initial threshold.

Constructor Summary

RegexPartitionStateRepoGroup(RegexPartitionStateRandomAccessGetter getter, RegexPartitionStateRepoGroupMeta meta)
Ctor.

Method Summary

void	accept(EventRowRegexNFAViewServiceVisitor visitor)
RegexPartitionStateRepo	copyForIterate() Copy state for iteration.
RegexPartitionState	getState(EventBean theEvent, boolean isCollect) Return state for event or create state if not found.
RegexPartitionState	getState(java.lang.Object key) Return state for key or create state if not found.
boolean	isPartitioned()
void	removeOld(EventBean[] oldData, boolean isEmpty, boolean[] found) Remove old events from the state, applicable for "prev" function and partial NFA state.
void	removeState(java.lang.Object partitionKey)

Methods inherited from class java.lang.Object

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

Field Detail

INITIAL_COLLECTION_MIN

public static final int INITIAL_COLLECTION_MIN

Empty state collection initial threshold.

See Also:

Constant Field Values

Constructor Detail

RegexPartitionStateRepoGroup

public RegexPartitionStateRepoGroup(RegexPartitionStateRandomAccessGetter getter,
                                    RegexPartitionStateRepoGroupMeta meta)

Ctor.

Parameters:

getter - for "prev" function access

meta - general metadata for grouping

Method Detail

removeState

public void removeState(java.lang.Object partitionKey)

Specified by:

removeState in interface RegexPartitionStateRepo

copyForIterate

public RegexPartitionStateRepo copyForIterate()

Description copied from interface: RegexPartitionStateRepo

Copy state for iteration.

Specified by:

copyForIterate in interface RegexPartitionStateRepo

Returns:

copied state

removeOld

public void removeOld(EventBean[] oldData,
                      boolean isEmpty,
                      boolean[] found)

Description copied from interface: RegexPartitionStateRepo

Remove old events from the state, applicable for "prev" function and partial NFA state.

Specified by:

removeOld in interface RegexPartitionStateRepo

Parameters:

oldData - to remove

isEmpty - indicator if there are not matches

found - indicator if any partial matches exist to be deleted

getState

public RegexPartitionState getState(java.lang.Object key)

Description copied from interface: RegexPartitionStateRepo

Return state for key or create state if not found.

Specified by:

getState in interface RegexPartitionStateRepo

Parameters:

key - to look up

Returns:

state

getState

public RegexPartitionState getState(EventBean theEvent,
                                    boolean isCollect)

Description copied from interface: RegexPartitionStateRepo

Return state for event or create state if not found.

Specified by:

getState in interface RegexPartitionStateRepo

Parameters:

theEvent - to look up

isCollect - true if a collection of unused state can occur

Returns:

state

accept

public void accept(EventRowRegexNFAViewServiceVisitor visitor)

Specified by:

accept in interface RegexPartitionStateRepo

isPartitioned

public boolean isPartitioned()

Specified by:

isPartitioned in interface RegexPartitionStateRepo