com.espertech.esper.rowregex

Class RegexPartitionStateImpl

java.lang.Object

com.espertech.esper.rowregex.RegexPartitionStateImpl

All Implemented Interfaces:

RegexPartitionState

public class RegexPartitionStateImpl
extends Object
implements RegexPartitionState

All current state holding partial NFA matches.

Constructor Summary

Constructors

Constructor and Description
RegexPartitionStateImpl(RegexPartitionStateRandomAccessGetter getter, List<RegexNFAStateEntry> currentStates) Ctor.
RegexPartitionStateImpl(RegexPartitionStateRandomAccessGetter getter, List<RegexNFAStateEntry> currentStates, Object optionalKeys) Ctor.
RegexPartitionStateImpl(RegexPartitionStateRandomAccess randomAccess, Object optionalKeys) Ctor.

Method Summary

Modifier and Type	Method and Description
void	clearCurrentStates()
List<RegexNFAStateEntry>	getCurrentStatesForPrint()
Iterator<RegexNFAStateEntry>	getCurrentStatesIterator() Returns partial matches.
int	getNumStates()
Object	getOptionalKeys() Returns partition keys, if any.
RegexPartitionStateRandomAccess	getRandomAccess() Returns the random access for "prev".
boolean	isEmptyCurrentState()
void	removeEventFromPrev(EventBean oldEvent) Remove an event from random access for "prev".
void	removeEventFromPrev(EventBean[] oldEvents) Remove an event from random access for "prev".
int	removeEventFromState(EventBean oldEvent) Remove an event from state.
static List<RegexNFAStateEntry>	removeEventFromState(EventBean oldEvent, Iterator<RegexNFAStateEntry> states)
void	setCurrentStates(List<RegexNFAStateEntry> currentStates) Sets partial matches.

Methods inherited from class java.lang.Object

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

Constructor Detail

RegexPartitionStateImpl

public RegexPartitionStateImpl(RegexPartitionStateRandomAccess randomAccess,
                               Object optionalKeys)

Ctor.

Parameters:

randomAccess - for handling "prev" functions, if any

optionalKeys - keys for "partition", if any

RegexPartitionStateImpl

public RegexPartitionStateImpl(RegexPartitionStateRandomAccessGetter getter,
                               List<RegexNFAStateEntry> currentStates)

Ctor.

Parameters:

getter - for "prev" access

currentStates - existing state

RegexPartitionStateImpl

public RegexPartitionStateImpl(RegexPartitionStateRandomAccessGetter getter,
                               List<RegexNFAStateEntry> currentStates,
                               Object optionalKeys)

Ctor.

Parameters:

getter - for "prev" access

currentStates - existing state

optionalKeys - partition keys if any

Method Detail

getRandomAccess

public RegexPartitionStateRandomAccess getRandomAccess()

Returns the random access for "prev".

Specified by:

getRandomAccess in interface RegexPartitionState

Returns:

access

getCurrentStatesIterator

public Iterator<RegexNFAStateEntry> getCurrentStatesIterator()

Returns partial matches.

Specified by:

getCurrentStatesIterator in interface RegexPartitionState

Returns:

state

setCurrentStates

public void setCurrentStates(List<RegexNFAStateEntry> currentStates)

Sets partial matches.

Specified by:

setCurrentStates in interface RegexPartitionState

Parameters:

currentStates - state to set

getOptionalKeys

public Object getOptionalKeys()

Returns partition keys, if any.

Specified by:

getOptionalKeys in interface RegexPartitionState

Returns:

keys

removeEventFromPrev

public void removeEventFromPrev(EventBean[] oldEvents)

Remove an event from random access for "prev".

Parameters:

oldEvents - to remove

removeEventFromPrev

public void removeEventFromPrev(EventBean oldEvent)

Remove an event from random access for "prev".

Parameters:

oldEvent - to remove

removeEventFromState

public int removeEventFromState(EventBean oldEvent)

Remove an event from state.

Parameters:

oldEvent - to remove

Returns:

true for removed, false for not found

getNumStates

public int getNumStates()

Specified by:

getNumStates in interface RegexPartitionState

clearCurrentStates

public void clearCurrentStates()

getCurrentStatesForPrint

public List<RegexNFAStateEntry> getCurrentStatesForPrint()

Specified by:

getCurrentStatesForPrint in interface RegexPartitionState

isEmptyCurrentState

public boolean isEmptyCurrentState()

Specified by:

isEmptyCurrentState in interface RegexPartitionState

removeEventFromState

public static List<RegexNFAStateEntry> removeEventFromState(EventBean oldEvent,
                                                            Iterator<RegexNFAStateEntry> states)