Luke Cwik created BEAM-5149:
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Summary: Add support to the Java SDK harness to merge windows
Key: BEAM-5149
URL: https://issues.apache.org/jira/browse/BEAM-5149
Project: Beam
Issue Type: Sub-task
Components: sdk-java-harness
Reporter: Luke Cwik
Assignee: Luke Cwik
Window merging function:
{code:java}
Input: KV<nonce, iterable<OriginalWindow>>
Output: KV<nonce, KV<iterable<UnmergedOriginalWindow>,
iterable<KV<MergedWindow, iterable<ConsumedOriginalWindow>>>>
{code}
For each set of original windows, a list of all unmerged windows is output
alongside a map of merged window to set of consumed windows. All original
windows must be contained in either the unmerged original window set or one of
the consumed original window sets. Each original window can only be part of one
output set. The nonce is used by a runner to associate each input with its
output. The nonce is represented as an opaque set of bytes.
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