weka.classifiers.lazy.kstar

## Class KStarCache

- java.lang.Object
- - weka.classifiers.lazy.kstar.KStarCache

- All Implemented Interfaces:
    java.io.Serializable, RevisionHandler

      public class KStarCache
      extends java.lang.Object
      implements java.io.Serializable, RevisionHandler

  A class representing the caching system used to keep track of each attribute value and its corresponding scale factor or stop parameter.
  Version:
    $Revision: 10153 $
  Author:
    Len Trigg (len@reeltwo.com), Abdelaziz Mahoui (am14@cs.waikato.ac.nz)
  See Also:
    Serialized Form

- - ### Nested Class Summary

    Nested Classes
    Modifier and Type | Class and Description
    --- | ---
    `class` | `KStarCache.CacheTable` A custom hashtable class to support the caching system.
    `class` | `KStarCache.TableEntry` Hashtable collision list.

  - ### Constructor Summary

    Constructors
    Constructor and Description
    `KStarCache()`

  - ### Method Summary

    Methods
    Modifier and Type | Method and Description
    --- | ---
    `boolean` | `containsKey(double key)` Checks if the specified key maps with an entry in the cache table
    `KStarCache.TableEntry` | `getCacheValues(double key)` Returns the values in the cache mapped by the specified key
    `java.lang.String` | `getRevision()` Returns the revision string.
    `void` | `store(double key, double value, double pmiss)` Stores the specified values in the cahce table for easy retrieval.

    - ### Methods inherited from class java.lang.Object

      `equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait`

- - ### Constructor Detail

    - #### KStarCache

          public KStarCache()

  - ### Method Detail

    - #### store

          public void store(double key,
                   double value,
                   double pmiss)

      Stores the specified values in the cahce table for easy retrieval.
      Parameters:
        `key` - attribute value used key to lookup the cache table.
        `value` - cache parameter: attribute scale/stop parameter.
        `pmiss` - cache parameter: transformation probability to attribute with missing value.

    - #### containsKey

          public boolean containsKey(double key)

      Checks if the specified key maps with an entry in the cache table
      Parameters:
        `key` - the key to map with an entry in the hashtable.

    - #### getCacheValues

          public KStarCache.TableEntry getCacheValues(double key)

      Returns the values in the cache mapped by the specified key
      Parameters:
        `key` - the key used to retrieve the table entry.

    - #### getRevision

          public java.lang.String getRevision()

      Returns the revision string.
      Specified by:
        `getRevision` in interface `RevisionHandler`
      Returns:
        the revision