Package org.apache.flink.cep.pattern

Class GroupPattern<T,F extends T>

java.lang.Object

org.apache.flink.cep.pattern.Pattern<T,F>

org.apache.flink.cep.pattern.GroupPattern<T,F>

Type Parameters:

T - Base type of the elements appearing in the pattern

F - Subtype of T to which the current pattern operator is constrained

public class GroupPattern<T,F extends T>
extends Pattern<T,F>

Base class for a group pattern definition.

Method Summary

Modifier and Type	Method	Description
Pattern<T,? extends T>	getRawPattern()
Pattern<T,F>	or(IterativeCondition<F> condition)	Adds a condition that has to be satisfied by an event in order to be considered a match.
<S extends F> Pattern<T,S>	subtype(Class<S> subtypeClass)	Applies a subtype constraint on the current pattern.
Pattern<T,F>	where(IterativeCondition<F> condition)	Adds a condition that has to be satisfied by an event in order to be considered a match.

Methods inherited from class org.apache.flink.cep.pattern.Pattern

allowCombinations, begin, begin, begin, begin, consecutive, followedBy, followedBy, followedByAny, followedByAny, getAfterMatchSkipStrategy, getCondition, getName, getPrevious, getQuantifier, getTimes, getUntilCondition, getWindowSize, getWindowSize, greedy, next, next, notFollowedBy, notNext, oneOrMore, oneOrMore, optional, times, times, times, times, timesOrMore, timesOrMore, toString, until, within, within

Methods inherited from class java.lang.Object

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

Method Detail

where

public Pattern<T,F> where(IterativeCondition<F> condition)

Description copied from class: Pattern

Adds a condition that has to be satisfied by an event in order to be considered a match. If another condition has already been set, the new one is going to be combined with the previous with a logical AND. In other case, this is going to be the only condition.

Overrides:

where in class Pattern<T,F extends T>

Parameters:

condition - The condition as an IterativeCondition.

Returns:

The pattern with the new condition is set.

or

public Pattern<T,F> or(IterativeCondition<F> condition)

Description copied from class: Pattern

Adds a condition that has to be satisfied by an event in order to be considered a match. If another condition has already been set, the new one is going to be combined with the previous with a logical OR. In other case, this is going to be the only condition.

Overrides:

or in class Pattern<T,F extends T>

Parameters:

condition - The condition as an IterativeCondition.

Returns:

The pattern with the new condition is set.

subtype

public <S extends F> Pattern<T,S> subtype(Class<S> subtypeClass)

Description copied from class: Pattern

Applies a subtype constraint on the current pattern. This means that an event has to be of the given subtype in order to be matched.

Overrides:

subtype in class Pattern<T,F extends T>

Type Parameters:

S - Type of the subtype

Parameters:

subtypeClass - Class of the subtype

Returns:

The same pattern with the new subtype constraint

getRawPattern

public Pattern<T,? extends T> getRawPattern()