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Posted to issues@commons.apache.org by "Alex Herbert (Jira)" <ji...@apache.org> on 2019/11/28 17:16:00 UTC
[jira] [Resolved] (RNG-126) PoissonSamplerCache to return a
SharedStateDiscreteSampler
[ https://issues.apache.org/jira/browse/RNG-126?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Alex Herbert resolved RNG-126.
------------------------------
Fix Version/s: 1.4
Resolution: Implemented
In master.
> PoissonSamplerCache to return a SharedStateDiscreteSampler
> ----------------------------------------------------------
>
> Key: RNG-126
> URL: https://issues.apache.org/jira/browse/RNG-126
> Project: Commons RNG
> Issue Type: Improvement
> Components: sampling
> Affects Versions: 1.3
> Reporter: Alex Herbert
> Assignee: Alex Herbert
> Priority: Trivial
> Fix For: 1.4
>
>
> The {{PoissonSamplerCache}} method:
> {code:java}
> public DiscreteSampler createPoissonSampler(
> UniformRandomProvider rng,
> double mean) {
> {code}
> Can now be:
> {code:java}
> public SharedStateDiscreteSampler createPoissonSampler(
> UniformRandomProvider rng,
> double mean) {
> {code}
> This works with no other code changes but breaks binary compatibility as the return type, although a sub-interface, is different.
> The solution is to create a new method:
> {code:java}
> public SharedStateDiscreteSampler createSharedStateSampler(
> UniformRandomProvider rng,
> double mean) {
> {code}
> And deprecate the old method in favour of the new one.
> An alternative is to add javadoc to the current method stating that a cast to SharedStateDiscreteSampler is supported. This would have to be checked by a unit test.
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