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AddOrGetExisting<T>(CacheItem<T>,CacheItemPolicy) Method

Summary

Adds a cache entry into the cache, and returns an existing cache entry with a matching key.

Syntax

C#
VB
Java
C++
public abstract CacheItem<T> AddOrGetExisting<T>( 
   CacheItem<T> item, 
   CacheItemPolicy policy 
) 
Public MustOverride Function AddOrGetExisting(Of T)( 
   ByVal item As CacheItem(Of T), 
   ByVal policy As CacheItemPolicy 
) As CacheItem(Of T) 
public:  
   generic<typename T> 
   virtual CacheItem<T>^ AddOrGetExisting( 
      CacheItem<T>^ item, 
      CacheItemPolicy^ policy 
   ) abstract 
public abstract<T> CacheItem<T> addOrGetExisting(CacheItem<T> value, Class<?> classOfT, CacheItemPolicy policy)

Parameters

item

Cache item to add.

policy

Expiration policy for the item.

Return Value

The previous cache entry that matches the specified key, if found. If the cache contains an item with the same key, then it will be returned before it is overwritten. Otherwise, null.

Requirements

Target Platforms

Help Version 19.0.2017.10.27
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