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NearCacheAddIndex Method

Oracle® Fusion Middleware .NET API Reference for Oracle Coherence
14c (14.1.1.0)
F23534-02
Add an index to this IQueryCache.

Namespace:  Tangosol.Net.Cache
Assembly:  Coherence (in Coherence.dll) Version: 14.1.1.14 (14.1.1.14)
Syntax
C#
Copy
public virtual void AddIndex(
	IValueExtractor extractor,
	bool isOrdered,
	IComparer comparer
)

Parameters

extractor
Type: Tangosol.UtilIValueExtractor
The IValueExtractor object that is used to extract an indexable object from a value stored in the indexed cache. Must not be null.
isOrdered
Type: SystemBoolean
true if the contents of the indexed information should be ordered; false otherwise.
comparer
Type: System.CollectionsIComparer
The IComparer object which imposes an ordering on entries in the indexed cache; or null if the entries' values natural ordering should be used.

Implements

IQueryCacheAddIndex(IValueExtractor, Boolean, IComparer)
Remarks
This allows to correlate values stored in this indexed cache (or attributes of those values) to the corresponding keys in the indexed cache and increase the performance of GetKeys and GetEntries methods.

The operation always executes against the back cache.

See Also