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AddOrGetExisting<T> Method

Summary

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

Syntax
C#
VB
C++
Java
public override CacheItem<T> AddOrGetExisting<T>( 
   CacheItem<T> item, 
   CacheItemPolicy policy 
) 
Public Overrides 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 
   ) override 
@Override 
public <T> CacheItem<T> addOrGetExisting(CacheItem<T> item, 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 21.0.2021.3.2
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Leadtools.Caching Assembly