OptimisticCacheSource (Hibernate Core Aggregator 3.6.10.Final API)

All Classes

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All Known Subinterfaces:

EntityPersister, Loadable, Lockable, OuterJoinLoadable, PostInsertIdentityPersister, Queryable, SQLLoadable, UniqueKeyLoadable

All Known Implementing Classes:

AbstractEntityPersister, JoinedSubclassEntityPersister, OptimisticCacheSourceAdapter, SingleTableEntityPersister, UnionSubclassEntityPersister
```
public interface OptimisticCacheSource
```
Contract for sources of optimistically lockable data sent to the second level cache.
Note currently EntityPersisters are the only viable source.

Author:

Steve Ebersole

Method Summary

Methods
Modifier and Type	Method and Description
`Comparator`	`getVersionComparator()` Get the comparator used to compare two different version values.
`boolean`	`isVersioned()` Is the data to be cached considered versioned? If true, it is illegal for `getVersionComparator()` to return null.

- Method Detail
  - isVersioned
```
boolean isVersioned()
```
    Is the data to be cached considered versioned?
    If true, it is illegal for getVersionComparator() to return null.
    
    Returns:
    True if the data is versioned; false otherwise.
  - getVersionComparator
```
Comparator getVersionComparator()
```
    Get the comparator used to compare two different version values.
    May return null if isVersioned() returns false.
    
    Returns:

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