Package com.yahoo.prelude.query.parser

Class AnyParser

java.lang.Object

com.yahoo.prelude.query.parser.AbstractParser

com.yahoo.prelude.query.parser.AnyParser

All Implemented Interfaces:

CustomParser, Parser

public class AnyParser
extends AbstractParser

Parser for queries of type any.

Author:

Steinar Knutsen

Field Summary

Fields inherited from class com.yahoo.prelude.query.parser.AbstractParser

braceLevelURL, defaultIndex, environment, indexFacts, language, submodes, tokens

Constructor Summary

Constructors

Constructor	Description
AnyParser(ParserEnvironment environment)

Method Summary

Modifier and Type	Method	Description
protected Item	anyItems(boolean topLevel)	A collection of one or more items.
protected Item	combineItems(Item topLevelItem, Item item)	Returns the top level item resulting from combining the given top level item and the new item.
protected Item	compositeItem()
protected Item	handleComposite(boolean topLevel)
protected com.yahoo.collections.Pair<Item,Boolean>	indexableItem()	Returns an item and whether it had an explicit index ('indexname:' prefix).
protected Item	negativeItem()
protected Item	parseItems()
protected Item	positiveItem()
protected void	setSubmodeFromIndex(String indexName, IndexFacts.Session indexFacts)	Sets the submodes used for url parsing.
protected Item	word(String indexName, boolean quoted)	Returns a WordItem if this is a non CJK query, a WordItem or SegmentItem if this is a CJK query, null if the current item is not a word

Methods inherited from class com.yahoo.prelude.query.parser.AbstractParser

normalize, parse, parse, segment, setState, simplifyPhrases, tokenize

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface com.yahoo.prelude.query.parser.CustomParser

parse

Constructor Details

AnyParser

public AnyParser(ParserEnvironment environment)

Method Details

parseItems

protected Item parseItems()

Specified by:

parseItems in class AbstractParser

negativeItem

protected Item negativeItem()

combineItems

protected Item combineItems(Item topLevelItem,
 Item item)

Returns the top level item resulting from combining the given top level item and the new item. This implements most of the weird transformation rules of the parser.

handleComposite

protected Item handleComposite(boolean topLevel)

anyItems

protected Item anyItems(boolean topLevel)

A collection of one or more items. More items are collected in the default composite - or. If there's a explicit composite and some other terms, a rank terms combines them

positiveItem

protected Item positiveItem()

compositeItem

protected Item compositeItem()

setSubmodeFromIndex

protected void setSubmodeFromIndex(String indexName,
 IndexFacts.Session indexFacts)

Sets the submodes used for url parsing. Override this to influence when such submodes are used.

indexableItem

protected com.yahoo.collections.Pair<Item,Boolean> indexableItem()

Returns an item and whether it had an explicit index ('indexname:' prefix).

Returns:

an item and whether it has an explicit index, or a Pair with the first element null if none

word

protected Item word(String indexName,
 boolean quoted)

Returns a WordItem if this is a non CJK query, a WordItem or SegmentItem if this is a CJK query, null if the current item is not a word

Parameters:

quoted - whether this token is inside quotes