Package de.umass.lastfm.cache

Class MemoryCache

java.lang.Object
de.umass.lastfm.cache.Cache
de.umass.lastfm.cache.MemoryCache
public class MemoryCache extends Cache
This class is just for testing. You probably don't want to use it in production.
Author:
Janni Kovacs

  • Constructor Details

    • MemoryCache

      public MemoryCache()

  • Method Details

    • contains

      public boolean contains(String cacheEntryName)
      Description copied from class: Cache
      Checks if the cache contains an entry with the given name.
      Specified by:
      contains in class Cache
      Parameters:
      cacheEntryName - An entry name
      Returns:
      true if the cache contains this entry

    • load

      public InputStream load(String cacheEntryName)
      Description copied from class: Cache
      Loads the specified entry from the cache and returns an InputStream to be read from. Returns null if the cache does not contain the specified cacheEntryName.
      Specified by:
      load in class Cache
      Parameters:
      cacheEntryName - An entry name
      Returns:
      an InputStream or null

    • remove

      public void remove(String cacheEntryName)
      Description copied from class: Cache
      Removes the specified entry from the cache if available. Does nothing if no such entry is available.
      Specified by:
      remove in class Cache
      Parameters:
      cacheEntryName - An entry name

    • store

      public void store(String cacheEntryName, InputStream inputStream, long expirationDate)
      Description copied from class: Cache
      Stores a request in the cache.
      Specified by:
      store in class Cache
      Parameters:
      cacheEntryName - The entry name to be stored to
      inputStream - An InputStream containing the data to be cached
      expirationDate - The date of expiration represented in milliseconds since 1.1.1970

    • isExpired

      public boolean isExpired(String cacheEntryName)
      Description copied from class: Cache
      Checks if the specified entry is expired.
      Specified by:
      isExpired in class Cache
      Parameters:
      cacheEntryName - An entry name
      Returns:
      true if the entry is expired

    • clear

      public void clear()
      Description copied from class: Cache
      Clears the cache by effectively removing all cached data.
      Specified by:
      clear in class Cache