[infinispan-issues] [JBoss JIRA] (ISPN-1865) Update indexes only when needed

[Sanne Grinovero (JIRA)]

    [ https://issues.jboss.org/browse/ISPN-1865?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12667093#comment-12667093 ] 

Sanne Grinovero commented on ISPN-1865:
---------------------------------------

Consider as well using
{code}
org.infinispan.context.Flag.SKIP_INDEXING
{code}
                
> Update indexes only when needed
> -------------------------------
>
>                 Key: ISPN-1865
>                 URL: https://issues.jboss.org/browse/ISPN-1865
>             Project: Infinispan
>          Issue Type: Enhancement
>          Components: Querying
>            Reporter: Mathieu Lachance
>            Assignee: Sanne Grinovero
>             Fix For: 5.2.0.ALPHA1, 5.2.0.FINAL
>
>
> // put in cache a value with 2 field, one indexed and one not indexed.
> Value value = new Value();
> value.setNonIndexedFieldValue(123);
> value.setIndexedFieldValue(456);
> cache.put("key", value);
>  
> // later...
> // get back value from cache and update the not indexed field
> Value value = cache.get("key");
> value.setNonIndexedFieldValue(789);
> cache.put("key", value);
> The second put operation will trigger index to update even tough it hasn't changed.
> Sanne suggested :
> " Thinking about it, there might be some situations in which we can detect it, for example if the put is going to carry a valid return value then we could compare values in string form.. nice, please open an improvement request on JIRA!"
> See https://community.jboss.org/thread/195303 for complete reference

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