com.yahoo.search.federation.vespa

Class QueryMarshaller

java.lang.Object

com.yahoo.search.federation.vespa.QueryMarshaller

public class QueryMarshaller
extends Object

Marshal a query stack into an advanced query string suitable for passing to another QRS.

Author:

Steinar Knutsen, Rong-En Fan

Field Summary

Fields

Modifier and Type	Field and Description
private boolean	atRoot

Constructor Summary

Constructors

Constructor and Description
QueryMarshaller()

Method Summary

Modifier and Type	Method and Description
private void	dumpWords(CompositeItem root, StringBuilder s) Dump WORD items, and add space between each of them unless those words came from segmentation.
String	marshal(Item root)
private void	marshal(Item root, StringBuilder s) We do not yet care about exact match indices
private void	marshalAnd(CompositeItem root, StringBuilder s)
private void	marshalComposite(String operator, CompositeItem root, StringBuilder s)
private void	marshalNear(NearItem root, StringBuilder s)
private void	marshalNot(NotItem root, StringBuilder s)
private void	marshalOr(OrItem root, StringBuilder s)
private void	marshalPhrase(IndexedItem root, StringBuilder s, boolean isExplicit, boolean isSegmented)
private void	marshalPhrase(PhraseItem root, StringBuilder s)
private void	marshalPhrase(PhraseSegmentItem root, StringBuilder s)
private void	marshalRank(RankItem root, StringBuilder s)
private void	marshalWeakAnd(WeakAndItem root, StringBuilder s)
private void	marshalWord(TermItem item, StringBuilder s)

Methods inherited from class java.lang.Object

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

Field Detail

atRoot

private boolean atRoot

Constructor Detail

QueryMarshaller

public QueryMarshaller()

Method Detail

marshal

public String marshal(Item root)

marshal

private void marshal(Item root,
                     StringBuilder s)

We do not yet care about exact match indices

marshalWord

private void marshalWord(TermItem item,
                         StringBuilder s)

marshalRank

private void marshalRank(RankItem root,
                         StringBuilder s)

marshalNot

private void marshalNot(NotItem root,
                        StringBuilder s)

marshalOr

private void marshalOr(OrItem root,
                       StringBuilder s)

dumpWords

private void dumpWords(CompositeItem root,
                       StringBuilder s)

Dump WORD items, and add space between each of them unless those words came from segmentation.

Parameters:

root - CompositeItem

s - current marshaled query

marshalPhrase

private void marshalPhrase(PhraseItem root,
                           StringBuilder s)

marshalPhrase

private void marshalPhrase(PhraseSegmentItem root,
                           StringBuilder s)

marshalPhrase

private void marshalPhrase(IndexedItem root,
                           StringBuilder s,
                           boolean isExplicit,
                           boolean isSegmented)

marshalNear

private void marshalNear(NearItem root,
                         StringBuilder s)

marshalAnd

private void marshalAnd(CompositeItem root,
                        StringBuilder s)

marshalWeakAnd

private void marshalWeakAnd(WeakAndItem root,
                            StringBuilder s)

marshalComposite

private void marshalComposite(String operator,
                              CompositeItem root,
                              StringBuilder s)