Package org.apache.flink.streaming.api.windowing.policy

Interface Summary

Interface	Description
ActiveEvictionPolicy<DATA>	This interface is used for active eviction policies.
ActiveTriggerCallback	In case an ActiveTriggerPolicy is used, it can implement own Runnable classes.
ActiveTriggerPolicy<DATA>	This interface extends the TriggerPolicy interface with functionality for active triggers.
CentralActiveTrigger<DATA>	Interface for defining grouped windowing policies which can interact with other groups to trigger on the latest available information globally available to all groups.
CloneableEvictionPolicy<DATA>	When used in grouped windowing, eviction policies must provide a clone method.
CloneableTriggerPolicy<DATA>	When used in grouped windowing, trigger policies can provide a clone method.
EvictionPolicy<DATA>	An eviction policy specifies under which condition data points should be deleted from the buffer.
TriggerPolicy<DATA>	Proves and returns if a new window should be started.

Class Summary

Class	Description
ActiveCloneableEvictionPolicyWrapper<DATA>	The ActiveEvictionPolicy wraps around a non active EvictionPolicy.
ActiveEvictionPolicyWrapper<DATA>	This ActiveEvictionPolicy wraps around a non active EvictionPolicy.
CloneableMultiEvictionPolicy<DATA>	This policy does the same as MultiEvictionPolicy.
CloneableMultiTriggerPolicy<DATA>	This policy does the same as MultiTriggerPolicy.
CountEvictionPolicy<IN>	This eviction policy allows the eviction of data points from the buffer using a counter of arriving elements and a threshold (maximal buffer size) By default this policy does not react on fake elements.
CountTriggerPolicy<IN>	This policy triggers at every n'th element.
DeltaPolicy<DATA>	This policy calculates a delta between the data point which triggered last and the currently arrived data point.
KeepAllEvictionPolicy<T>
MultiEvictionPolicy<DATA>	This policy provides the ability to use multiple eviction policies at the same time.
MultiTriggerPolicy<DATA>	This class allows to use multiple trigger policies at the same time.
PunctuationPolicy<IN,DATA>	This policy can be used to trigger and evict based on a punctuation which is present within the arriving data.
TimeEvictionPolicy<DATA>	This eviction policy evicts all elements which are older then a specified time.
TimeTriggerPolicy<DATA>	This trigger policy triggers with regard to the time.
TumblingEvictionPolicy<DATA>	This eviction policy deletes all elements from the buffer in case a trigger occurred.

Enum Summary

Enum	Description
MultiEvictionPolicy.EvictionStrategy	This enum provides the different options for the eviction strategy.