Oracle® Fusion Middleware C++ API Reference for Oracle Coherence
12c (12.1.3.0.0)
E47891-01

KeyAssociation Class Reference

#include <coherence/net/cache/KeyAssociation.hpp>

Inherits Object.

Inherited by CompositeKey [virtual].

List of all members.

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Detailed Description

A KeyAssociation represents a key object that has a natural association with another key object.

The key object and the associated key may refer to entries in the same or different caches.

For example, the information provided by a key that implements KeyAssociation may be used to place the key into the same partition as its associated key.

See KeyAssociatedFilter for an example of a distributed query that takes advantage of a custom KeyAssociation implementation to dramatically optimize its performance.

Author:

gm 2009.03.18

Public Types
typedef spec::Handle	Handle
	KeyAssociation Handle definition.
typedef spec::View	View
	KeyAssociation View definition.
typedef spec::Holder	Holder
	KeyAssociation Holder definition.
Public Member Functions
virtual Object::View	getAssociatedKey () const =0
	Determine the key object to which this key object is associated.

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Member Function Documentation

virtual Object::View getAssociatedKey

(

)

const [pure virtual]

Determine the key object to which this key object is associated.

The key object returned by this method is often referred to as a host key.

Returns:

the host key that for this key object, or NULL if this key has no association.

Implemented in CompositeKey.

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The documentation for this class was generated from the following file:

• coherence/net/cache/KeyAssociation.hpp

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