[infinispan-issues] [JBoss JIRA] (ISPN-3640) Extend KeyFilter facility to the whole cache
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https://issues.jboss.org/browse/ISPN-3640?page=com.atlassian.jira.plugin....
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Sanne Grinovero commented on ISPN-3640:
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I love this idea, but let's aim at making it consistent (eventually) with all
features:
- CacheStore filtering operations (would be great to have a "type column" in
the jdbc one for example, incredibily useful for the JPA one)
- Map/Reduce jobs to operate on the subset only
- queries
As usual the _clear()_ operation stands out as the troublemaker.
Extend KeyFilter facility to the whole cache
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Key: ISPN-3640
URL: https://issues.jboss.org/browse/ISPN-3640
Project: Infinispan
Issue Type: Feature Request
Components: Core
Affects Versions: 6.0.0.CR1
Reporter: Paul Ferraro
Assignee: Mircea Markus
The key filter facility is very convenient for users who have multiple key types in the
same cache. It would be very handy if this feature were extended to the whole cache.
e.g.
Cache<?, ?> cache = ...;
KeyFilter filter = ...;
Cache<K, V> view = cache.filter(filter);
view.addListener(listener) // Equivalent to the current cache.addListener(listener,
filter) method
for (Map.Entry<K, V> entry: view.entrySet()) {
...
}
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