Package com.yahoo.prelude.query

Class PureWeightedItem

java.lang.Object

com.yahoo.prelude.query.Item

com.yahoo.prelude.query.PureWeightedItem

All Implemented Interfaces:

Cloneable

Direct Known Subclasses:

PureWeightedInteger, PureWeightedString

public abstract class PureWeightedItem
extends Item

A word item which only consists of a value and weight, and gets other properties such as the index to query from ther parent item. It's more efficient to use pure items where possible instead of TermItem children (WordItem, IntItem) which may carry many auxiliary properties.

Author:

baldersheim

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, documentFrequency, explicitSignificance, significance, uniqueID

Constructor Summary

Constructors

Constructor	Description
PureWeightedItem(int weight)

Method Summary

Modifier and Type	Method	Description
protected void	appendBodyString(StringBuilder buffer)	Override to append the item body in the canonical query language of this item.
void	disclose(Discloser discloser)
int	encode(ByteBuffer buffer)
String	getName()	Returns the name of this item
void	setIndexName(String index)	Ignored.

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

addAnnotation, appendHeadingString, clone, encodeThis, equals, getAnnotation, getBytes, getCode, getCreator, getItemType, getLabel, getLanguage, getParent, getTermCount, getWeight, hasAnnotation, hasConnectivityBackLink, hashCode, hasPrefixMatchSemantics, hasUniqueID, 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

PureWeightedItem

public PureWeightedItem(int weight)

Method Details

setIndexName

public void setIndexName(String index)

Ignored.

Specified by:

setIndexName in class Item

getName

public String getName()

Description copied from class: Item

Returns the name of this item

Specified by:

getName in class Item

encode

public int encode(ByteBuffer buffer)

Specified by:

encode in class Item

appendBodyString

protected void appendBodyString(StringBuilder buffer)

Description copied from class: Item

Override to append the item body in the canonical query language of this item. An item is usually represented by the string

 ([itemName] [body])
 

The body must be appended by this method.

Specified by:

appendBodyString in class Item

disclose

public void disclose(Discloser discloser)

Overrides:

disclose in class Item