com.espertech.esper.rowregex

Interface RegexNFAState

All Known Implementing Classes:

RegexNFAStateAnyOne, RegexNFAStateBase, RegexNFAStateEnd, RegexNFAStateFilter, RegexNFAStateOneOptional, RegexNFAStateOneToMany, RegexNFAStateZeroToMany

public interface RegexNFAState

Match-recognize NFA states provides this information.

Method Summary

Modifier and Type	Method and Description
List<RegexNFAState>	getNextStates() Returns the next states.
int	getNodeNumFlat() Returns the absolute node num.
String	getNodeNumNested() Returns the nested node number.
int	getStreamNum() Returns stream number.
String	getVariableName() Returns the variable name.
boolean	isExprRequiresMultimatchState() Whether or not the match-expression requires multimatch state
Boolean	isGreedy() Returns greedy indicator.
boolean	isMultiple() For multiple-quantifiers.
boolean	matches(EventBean[] eventsPerStream, ExprEvaluatorContext exprEvaluatorContext) Evaluate a match.

Method Detail

isMultiple

boolean isMultiple()

For multiple-quantifiers.

Returns:

indicator

getNodeNumNested

String getNodeNumNested()

Returns the nested node number.

Returns:

num

getNodeNumFlat

int getNodeNumFlat()

Returns the absolute node num.

Returns:

num

getVariableName

String getVariableName()

Returns the variable name.

Returns:

name

getStreamNum

int getStreamNum()

Returns stream number.

Returns:

stream num

isGreedy

Boolean isGreedy()

Returns greedy indicator.

Returns:

greedy indicator

matches

boolean matches(EventBean[] eventsPerStream,
                ExprEvaluatorContext exprEvaluatorContext)

Evaluate a match.

Parameters:

eventsPerStream - variabele values

exprEvaluatorContext - expression evaluation context

Returns:

match indicator

getNextStates

List<RegexNFAState> getNextStates()

Returns the next states.

Returns:

states

isExprRequiresMultimatchState

boolean isExprRequiresMultimatchState()

Whether or not the match-expression requires multimatch state

Returns:

indicator