Add RunOnce utility class that executes a Runnable exactly once #35484
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tlrx
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>enhancement
:Core/Infra/Core
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Pinging @elastic/es-core-infra |
jasontedor
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Nov 13, 2018
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jasontedor
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I left a drive-by comment.
| * A class which wraps an existing {@link Runnable} and allows to execute it exactly once | ||
| * whatever the number of times the wrapped {@link Runnable#run()} method is called. | ||
| */ | ||
| public class RunOnce implements Runnable { |
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We already have at least one implementation of this in the codebase: WorkerBulkByScrollTakeState#RunOnce. Can we relocate that code instead? Also, it is lacking tests. I think it could go in separately in a PR that adds tests along side it.
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Superseded by #35489 |
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This pull request adds a simple
RunOnceclass that can be used to execute aRunnableexactly once.Related to #34902 (comment)