Can the same object cached with different keys?

[Suresh Senanayaka]

Can the same object cached with different keys?

So that if we remove the object with one key will it get removed automatically with the other key as well?

can we use composite keys or regular expressions for the keys? 

I am using pure Ehcache (without Sprint or Hibernate)

/Suresh

[Chris Dennis]

No, you cannot have a value mapped to multiple keys such that when one mapping is removed, the other gets removed too. For an in-heap referential cache you could introduce state (or wrap) to represent the liveness of the value, and just check it outside. The mapping wouldn’t get removed, but since the mappings share the object they would both see the state mutation that marked the object as “removed”.

 

Regarding composite keys and/or regular expressions for keys you’ll have to be more explicit. What exact behavior would you be expecting?

 

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