Class CacheWrapper

    • Method Detail

      • getName

        public String getName()
        Description copied from interface: Cache
        Get cache name as specified in the descriptor
        Specified by:
        getName in interface Cache
        Returns:
        the cache name
      • get

        public Serializable get​(String key)
        Description copied from interface: Cache
        Get method to retrieve value from cache Must not raise exception if the key is null, but return null
        Specified by:
        get in interface Cache
        Parameters:
        key - the string key
        Returns:
        the Serializable value, return null if the key does not exist or if the key is null
      • keySet

        public Set<StringkeySet()
        Description copied from interface: Cache
        Returns the set of all keys stored in the cache.
        Specified by:
        keySet in interface Cache
        Returns:
        the Set of all keys
      • invalidate

        public void invalidate​(String key)
        Description copied from interface: Cache
        Invalidate the given key
        Specified by:
        invalidate in interface Cache
        Parameters:
        key - , the key to remove from the cache, if null will do nothing
      • invalidateAll

        public void invalidateAll()
        Description copied from interface: Cache
        Invalidate all key-value stored in the cache
        Specified by:
        invalidateAll in interface Cache
      • put

        public void put​(String key,
                        Serializable value)
        Description copied from interface: Cache
        Put method to store a Serializable value
        Specified by:
        put in interface Cache
        Parameters:
        key - the string key, if null, the value will not be stored
        value - the value to store, if null, the value will not be stored
      • hasEntry

        public boolean hasEntry​(String key)
        Description copied from interface: Cache
        Check if a given key is present inside the cache. Compared to the get() method, this method must not update internal cache state and change TTL
        Specified by:
        hasEntry in interface Cache
        Parameters:
        key - the string key
        Returns:
        true if a corresponding entry exists, false otherwise
      • getSize

        public long getSize()
        Description copied from interface: CacheManagement
        Returns this cache size (approximate number of entries), or -1 if the number of entries is unknown or too expensive to compute.
        Specified by:
        getSize in interface CacheManagement
        Returns:
        the approximate number of entries, or -1