org.apache.flink.table.runtime.operators.window.slicing

Interface SliceSharedAssigner.MergeCallback

All Known Implementing Classes:

SliceSharedWindowAggProcessor

Enclosing interface:

SliceSharedAssigner

public static interface SliceSharedAssigner.MergeCallback

Callback to be used in SliceSharedAssigner.mergeSlices(long, MergeCallback) for specifying which slices should be merged.

Method Summary

Modifier and Type	Method and Description
void	merge(Long mergeResult, Iterable<Long> toBeMerged) Specifies that states of the given slices should be merged into the result slice.

Method Detail

merge

void merge(@Nullable
           Long mergeResult,
           Iterable<Long> toBeMerged)
    throws Exception

Specifies that states of the given slices should be merged into the result slice.

Parameters:

mergeResult - The resulting merged slice, null if it represents a non-state namespace.

toBeMerged - The list of slices that should be merged into one slice.

Throws:

Exception