MapKeyHelpers (Hibernate JavaDocs)
Date: 2012-04-05

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## org.hibernate.ejb.criteria.path
Class MapKeyHelpers

    java.lang.Object
      org.hibernate.ejb.criteria.path.MapKeyHelpers

    public class MapKeyHelpers

extends Object

`MapJoin.key()` poses a number of implementation difficulties in terms of the type signatures amongst the `MapKeyHelpers.MapKeyPath`, `Join` and `Attribute` reference at play. The implementations found here provide that bridge.

Nested Class Summary
`static class` | `MapKeyHelpers.MapKeyAttribute<K>` Defines an `Attribute` modelling of a map-key.
`static class` | `MapKeyHelpers.MapKeyPath<K>` Models a path to a map key.
`static class` | `MapKeyHelpers.MapKeySource<K,V>` Defines a `Path` for the map which can then be used to represent the source of the map key "attribute".

Method Summary

Methods inherited from class java.lang.Object
`clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait`

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