Package com.yahoo.prelude.query

Class DotProductItem

java.lang.Object

com.yahoo.prelude.query.Item

com.yahoo.prelude.query.SimpleTaggableItem

com.yahoo.prelude.query.WeightedSetItem

com.yahoo.prelude.query.DotProductItem

All Implemented Interfaces:

TaggableItem, Cloneable

public class DotProductItem
extends WeightedSetItem

A weighted set query item to be evaluated as a sparse dot product. The resulting dot product will be available as a raw score in the rank framework.

Author:

havardpe

Nested Class Summary

Nested classes/interfaces inherited from class com.yahoo.prelude.query.Item

Item.ItemCreator, Item.ItemType

Field Summary

Fields inherited from class com.yahoo.prelude.query.Item

connectedBacklink, connectedItem, connectivity, DEFAULT_WEIGHT, explicitSignificance, significance, uniqueID

Constructor Summary

Constructors

Constructor	Description
DotProductItem(String indexName)
DotProductItem(String indexName, Map<Object,Integer> map)

Method Summary

Modifier and Type	Method	Description
Item.ItemType	getItemType()	Return the enumerated type of this item.

Methods inherited from class com.yahoo.prelude.query.WeightedSetItem

addToken, addToken, addToken, appendBodyString, clone, disclose, encode, encodeThis, equals, getIndexName, getName, getNumTokens, getTermCount, getTokens, getTokenWeight, hashCode, removeToken, setIndexName

Methods inherited from class com.yahoo.prelude.query.SimpleTaggableItem

getConnectedItem, getConnectivity, getSignificance, getUniqueID, hasExplicitSignificance, hasUniqueID, setConnectivity, setExplicitSignificance, setSignificance, setUniqueID

Methods inherited from class com.yahoo.prelude.query.Item

addAnnotation, appendHeadingString, getAnnotation, getBytes, getCode, getCreator, getLabel, getLanguage, getParent, getWeight, hasAnnotation, hasConnectivityBackLink, isFilter, isFromSpecialToken, isProtected, isRanked, isRoot, putBytes, putString, setCreator, setFilter, setFromSpecialToken, setHasUniqueID, setLabel, setLanguage, setParent, setPositionData, setProtected, setRanked, setWeight, shouldParenthesize, toString, usePositionData

Methods inherited from class java.lang.Object

finalize, getClass, notify, notifyAll, wait, wait, wait

Constructor Details

DotProductItem

public DotProductItem(String indexName)

DotProductItem

public DotProductItem(String indexName,
 Map<Object,Integer> map)

Method Details

getItemType

public Item.ItemType getItemType()

Description copied from class: Item

Return the enumerated type of this item.

Overrides:

getItemType in class WeightedSetItem