Checks whether the specified cache entry exists in the cache.
public abstract bool Contains(string key,string regionName)
Public MustOverride Function Contains(ByVal key As String,ByVal regionName As String) As Boolean
public:virtual bool Contains(String^ key,String^ regionName) abstract
public abstract boolean contains(String key, String regionName)
key
Unique identifier of the cache item.
regionName
Optional name of a region in cache.
true if the specified cache entry exists in the cache, otherwise; false.
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