weka.classifiers.lazy.kstar
Class KStarCache.CacheTable

java.lang.Object
  |
  +--weka.classifiers.lazy.kstar.KStarCache.CacheTable
All Implemented Interfaces:
java.io.Serializable
Enclosing class:
KStarCache

public class KStarCache.CacheTable
extends java.lang.Object
implements java.io.Serializable

A custom hashtable class to support the caching system.

See Also:
Serialized Form

Constructor Summary
KStarCache.CacheTable()
          Constructs a new hashtable with a default capacity and load factor.
KStarCache.CacheTable(int size, float loadFactor)
          Constructs a new hashtable with a default capacity and load factor.
 
Method Summary
 void clear()
          Clears this hashtable so that it contains no keys.
 boolean containsKey(double key)
          Tests if the specified double is a key in this hashtable.
 KStarCache.TableEntry getEntry(double key)
          Returns the table entry to which the specified key is mapped in this hashtable.
 void insert(double key, double value, double pmiss)
          Inserts a new entry in the hashtable using the specified key.
 boolean isEmpty()
          Tests if this hashtable maps no keys to values.
 int size()
          Returns the number of keys in this hashtable.
 
Methods inherited from class java.lang.Object
equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
 

Constructor Detail

KStarCache.CacheTable

public KStarCache.CacheTable(int size,
                             float loadFactor)
Constructs a new hashtable with a default capacity and load factor.


KStarCache.CacheTable

public KStarCache.CacheTable()
Constructs a new hashtable with a default capacity and load factor.

Method Detail

containsKey

public boolean containsKey(double key)
Tests if the specified double is a key in this hashtable.


insert

public void insert(double key,
                   double value,
                   double pmiss)
Inserts a new entry in the hashtable using the specified key. If the key already exist in the hashtable, do nothing.


getEntry

public KStarCache.TableEntry getEntry(double key)
Returns the table entry to which the specified key is mapped in this hashtable.

Returns:
a table entry.

size

public int size()
Returns the number of keys in this hashtable.

Returns:
the number of keys in this hashtable.

isEmpty

public boolean isEmpty()
Tests if this hashtable maps no keys to values.

Returns:
true if this hastable maps no keys to values.

clear

public void clear()
Clears this hashtable so that it contains no keys.



Copyright (c) 2003 David Lindsay, Computer Learning Research Centre, Dept. Computer Science, Royal Holloway, University of London