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Posted to issues@flink.apache.org by "Andrey Zagrebin (JIRA)" <ji...@apache.org> on 2018/06/29 12:31:00 UTC
[jira] [Closed] (FLINK-9514) Create wrapper with TTL logic for
value state
[ https://issues.apache.org/jira/browse/FLINK-9514?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Andrey Zagrebin closed FLINK-9514.
----------------------------------
Resolution: Fixed
Merged in:
master: 2c13e00c1c
> Create wrapper with TTL logic for value state
> ---------------------------------------------
>
> Key: FLINK-9514
> URL: https://issues.apache.org/jira/browse/FLINK-9514
> Project: Flink
> Issue Type: Sub-task
> Components: State Backends, Checkpointing
> Affects Versions: 1.6.0
> Reporter: Andrey Zagrebin
> Assignee: Andrey Zagrebin
> Priority: Major
> Labels: pull-request-available
> Fix For: 1.6.0
>
>
> TTL state decorator uses original state with packed TTL and add TTL logic using time provider:
> {code:java}
> TtlValueState<V> implements ValueState<V> {
> ValueState<TtlValue<V>> underlyingState;
> InternalTimeService timeProvider;
> V value() {
> TtlValue<V> valueWithTtl = underlyingState.get();
> // ttl logic here (e.g. update timestamp)
> return valueWithTtl.getValue();
> }
> void update() { ... underlyingState.update(valueWithTtl) ... }
> }
> {code}
> TTL decorators are apply to state produced by normal state binder in its TTL wrapper from FLINK-9513
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