Package edu.berkeley.nlp.lm.cache
Class ArrayEncodedDirectMappedLmCache
java.lang.Object
edu.berkeley.nlp.lm.cache.ArrayEncodedDirectMappedLmCache
- All Implemented Interfaces:
ArrayEncodedLmCache
,Serializable
A direct-mapped cache. This cache does not perform any collision resolution,
but rather retains only the most recent key which gets hashed to a particular
bucket.
- Author:
- adampauls
- See Also:
-
Constructor Summary
ConstructorsConstructorDescriptionArrayEncodedDirectMappedLmCache
(int cacheBits, int maxNgramOrder, boolean threadSafe) -
Method Summary
Modifier and TypeMethodDescriptionint
capacity()
How n-grams can be cached (at most).void
clear()
float
getCached
(int[] ngram, int startPos, int endPos, int hash) Should return Float.NaN if the requested n-gram is not in the cachevoid
putCached
(int[] ngram, int startPos, int endPos, float f, int hash)
-
Constructor Details
-
ArrayEncodedDirectMappedLmCache
public ArrayEncodedDirectMappedLmCache(int cacheBits, int maxNgramOrder, boolean threadSafe)
-
-
Method Details
-
getCached
public float getCached(int[] ngram, int startPos, int endPos, int hash) Description copied from interface:ArrayEncodedLmCache
Should return Float.NaN if the requested n-gram is not in the cache- Specified by:
getCached
in interfaceArrayEncodedLmCache
- Parameters:
ngram
-startPos
-endPos
-- Returns:
-
clear
public void clear()- Specified by:
clear
in interfaceArrayEncodedLmCache
-
putCached
public void putCached(int[] ngram, int startPos, int endPos, float f, int hash) - Specified by:
putCached
in interfaceArrayEncodedLmCache
-
capacity
public int capacity()Description copied from interface:ArrayEncodedLmCache
How n-grams can be cached (at most).- Specified by:
capacity
in interfaceArrayEncodedLmCache
- Returns:
-