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https://issues.apache.org/jira/browse/SLING-12062?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17820724#comment-17820724
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Joerg Hoh commented on SLING-12062:
-----------------------------------
PR: https://github.com/apache/sling-org-apache-sling-api/pull/52
> add LazyBindings.putOnly
> ------------------------
>
> Key: SLING-12062
> URL: https://issues.apache.org/jira/browse/SLING-12062
> Project: Sling
> Issue Type: Task
> Components: API
> Affects Versions: API 2.27.2
> Reporter: Joerg Hoh
> Priority: Major
>
> The LazyBindings support the lazy evaluation of values to avoid the potential
> costly resolution of values at provisioning time (the values are only
> resolved when requested via {{get}}).
> But if for some reasons the same key is put twice into a LazyBinding, the
> second call to {{put(key, value)}} resolves the already provided value and
> returns it, but this return value of {{put}} is often ignored.
> So the LazyBindings should have a {{putOnly(key,value)}} method, which
> behaves the same way as the existing {{put}}, but does not return the
> (resolved) previous value. This can be used by all providers which just push
> data into the LazyBindings, but are not interested in any value returned by
> the normal {{put}}.
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