org.apache.flink.streaming.runtime.operators.windowing.buffers

Interface EvictingWindowBuffer<T,O>

Type Parameters:

T - The type of elements that this WindowBuffer can store.

O - The type of elements that this window buffer will return when asked for its contents.

All Superinterfaces:

WindowBuffer<T,O>

All Known Implementing Classes:

ListWindowBuffer

@Internal
public interface EvictingWindowBuffer<T,O>
extends WindowBuffer<T,O>

A WindowBuffer that can also evict elements from the buffer. The order in which the elements are added is preserved. Elements can only be evicted started from the beginning of the buffer.

Method Summary

Modifier and Type	Method and Description
void	removeElements(int count) Removes the given number of elements, starting from the beginning.

Methods inherited from interface org.apache.flink.streaming.runtime.operators.windowing.buffers.WindowBuffer

getElements, getUnpackedElements, size, snapshot, storeElement

Method Detail

removeElements

void removeElements(int count)

Removes the given number of elements, starting from the beginning.

Parameters:

count - The number of elements to remove.