# Serialized Form

Package org.apache.mahout.cf.taste.impl.model.cassandra

Class org.apache.mahout.cf.taste.impl.model.cassandra.CassandraDataModel extends Object implements Serializable

Serialized Fields

### cluster

    me.prettyprint.hector.api.Cluster cluster

### keyspace

    me.prettyprint.hector.api.Keyspace keyspace

### userCache

    Cache<K,V> userCache

### itemCache

    Cache<K,V> itemCache

### itemIDsFromUserCache

    Cache<K,V> itemIDsFromUserCache

### userIDsFromItemCache

    Cache<K,V> userIDsFromItemCache

### userCountCache

    AtomicReference<V> userCountCache

### itemCountCache

    AtomicReference<V> itemCountCache

Package org.apache.mahout.cf.taste.impl.model.hbase

Class org.apache.mahout.cf.taste.impl.model.hbase.HBaseDataModel extends Object implements Serializable

Serialized Fields

### pool

    org.apache.hadoop.hbase.client.HTablePool pool

### tableName

    String tableName

### itemIDs

    FastIDSet itemIDs

### userIDs

    FastIDSet userIDs

Package org.apache.mahout.cf.taste.impl.model.jdbc

Class org.apache.mahout.cf.taste.impl.model.jdbc.AbstractBooleanPrefJDBCDataModel extends AbstractJDBCDataModel implements Serializable

Serialized Fields

### setPreferenceSQL

    String setPreferenceSQL

Class org.apache.mahout.cf.taste.impl.model.jdbc.AbstractJDBCDataModel extends AbstractJDBCComponent implements Serializable

Serialized Fields

### dataSource

    DataSource dataSource

### preferenceTable

    String preferenceTable

### userIDColumn

    String userIDColumn

### itemIDColumn

    String itemIDColumn

### preferenceColumn

    String preferenceColumn

### getPreferenceSQL

    String getPreferenceSQL

### getPreferenceTimeSQL

    String getPreferenceTimeSQL

### getUserSQL

    String getUserSQL

### getAllUsersSQL

    String getAllUsersSQL

### getNumItemsSQL

    String getNumItemsSQL

### getNumUsersSQL

    String getNumUsersSQL

### setPreferenceSQL

    String setPreferenceSQL

### removePreferenceSQL

    String removePreferenceSQL

### getUsersSQL

    String getUsersSQL

### getItemsSQL

    String getItemsSQL

### getPrefsForItemSQL

    String getPrefsForItemSQL

### getNumPreferenceForItemsSQL

    String getNumPreferenceForItemsSQL

### getMaxPreferenceSQL

    String getMaxPreferenceSQL

### getMinPreferenceSQL

    String getMinPreferenceSQL

### cachedNumUsers

    int cachedNumUsers

### cachedNumItems

    int cachedNumItems

### itemPrefCounts

    Cache<K,V> itemPrefCounts

### maxPreference

    float maxPreference

### minPreference

    float minPreference

Class org.apache.mahout.cf.taste.impl.model.jdbc.GenericJDBCDataModel extends AbstractJDBCDataModel implements Serializable

Class org.apache.mahout.cf.taste.impl.model.jdbc.MySQLBooleanPrefJDBCDataModel extends AbstractBooleanPrefJDBCDataModel implements Serializable

Class org.apache.mahout.cf.taste.impl.model.jdbc.MySQLJDBCDataModel extends AbstractJDBCDataModel implements Serializable

Class org.apache.mahout.cf.taste.impl.model.jdbc.PostgreSQLBooleanPrefJDBCDataModel extends SQL92BooleanPrefJDBCDataModel implements Serializable

Class org.apache.mahout.cf.taste.impl.model.jdbc.PostgreSQLJDBCDataModel extends SQL92JDBCDataModel implements Serializable

Class org.apache.mahout.cf.taste.impl.model.jdbc.ReloadFromJDBCDataModel extends Object implements Serializable

Serialized Fields

### delegateInMemory

    DataModel delegateInMemory

### delegate

    JDBCDataModel delegate

### refreshHelper

    RefreshHelper refreshHelper

Class org.apache.mahout.cf.taste.impl.model.jdbc.SQL92BooleanPrefJDBCDataModel extends AbstractBooleanPrefJDBCDataModel implements Serializable

Serialized Fields

### verifyPreferenceSQL

    String verifyPreferenceSQL

Class org.apache.mahout.cf.taste.impl.model.jdbc.SQL92JDBCDataModel extends AbstractJDBCDataModel implements Serializable

Serialized Fields

### updatePreferenceSQL

    String updatePreferenceSQL

### verifyPreferenceSQL

    String verifyPreferenceSQL

Package org.apache.mahout.cf.taste.impl.model.mongodb

Class org.apache.mahout.cf.taste.impl.model.mongodb.MongoDBDataModel extends Object implements Serializable

Serialized Fields

### mongoHost

    String mongoHost

  MongoDB host

### mongoPort

    int mongoPort

  MongoDB port

### mongoDB

    String mongoDB

  MongoDB database

### mongoAuth

    boolean mongoAuth

  MongoDB authentication flag. If this flag is set to false, authentication is not required.

### mongoUsername

    String mongoUsername

  MongoDB user

### mongoPassword

    String mongoPassword

  MongoDB pass

### mongoCollection

    String mongoCollection

  MongoDB table/collection

### mongoMapCollection

    String mongoMapCollection

  MongoDB mapping table/collection

### mongoManage

    boolean mongoManage

  MongoDB update flag. When this flag is activated, the DataModel updates both model and database

### mongoUserID

    String mongoUserID

  MongoDB user ID field

### mongoItemID

    String mongoItemID

  MongoDB item ID field

### mongoPreference

    String mongoPreference

  MongoDB preference value field

### mongoFinalRemove

    boolean mongoFinalRemove

  MongoDB final remove flag. Default: false

### dateFormat

    DateFormat dateFormat

  MongoDB date format

### collection

    com.mongodb.DBCollection collection

### collectionMap

    com.mongodb.DBCollection collectionMap

### mongoTimestamp

    Date mongoTimestamp

### reloadLock

    ReentrantLock reloadLock

### delegate

    DataModel delegate

### userIsObject

    boolean userIsObject

### itemIsObject

    boolean itemIsObject

### preferenceIsString

    boolean preferenceIsString

### idCounter

    long idCounter

Package org.apache.mahout.cf.taste.web

Class org.apache.mahout.cf.taste.web.RecommenderServlet extends javax.servlet.http.HttpServlet implements Serializable

Serialized Fields

### recommender

    Recommender recommender

Package org.apache.mahout.utils

Class org.apache.mahout.utils.SplitInputJob.SplitInputComparator extends org.apache.hadoop.io.WritableComparator implements Serializable

Serialized Fields

### rnd

    Random rnd

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