org.cdlib.xtf.textEngine

Class XtfSpanRangeQuery

Object

Query

SpanQuery

SpanRangeQuery

BigramSpanRangeQuery

XtfSpanRangeQuery

All Implemented Interfaces:

Serializable, Cloneable

public class XtfSpanRangeQuery
extends BigramSpanRangeQuery

Matches spans containing terms within a specified range. Performs extra filtering to make sure bi-grams are not matched, and that start/end of field marks are not matched.

See Also:

Serialized Form

Constructor Summary

Constructors

Constructor and Description
XtfSpanRangeQuery(Term lowerTerm, Term upperTerm, boolean inclusive, int termLimit)

Method Summary

Modifier and Type	Method and Description
protected boolean	shouldSkipTerm(Term term) Enables derived classes to skip certain terms in the index (e.g. stop words, bi-grams, etc.)

Methods inherited from class BigramSpanRangeQuery

setStopWords

Methods inherited from class SpanRangeQuery

combine, getField, getLowerTerm, getSpans, getTermLimit, getTerms, getUpperTerm, isInclusive, rewrite, toString

Methods inherited from class SpanQuery

createWeight, getSpanRecording, setSpanRecording

Methods inherited from class Query

clone, extractTerms, getBoost, getSimilarity, mergeBooleanQueries, setBoost, toString, weight

Methods inherited from class Object

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

Constructor Detail

XtfSpanRangeQuery

public XtfSpanRangeQuery(Term lowerTerm,
                         Term upperTerm,
                         boolean inclusive,
                         int termLimit)

Method Detail

shouldSkipTerm

protected boolean shouldSkipTerm(Term term)

Description copied from class: SpanRangeQuery

Enables derived classes to skip certain terms in the index (e.g. stop words, bi-grams, etc.) Default implementation doesn't skip any terms.

Overrides:

shouldSkipTerm in class BigramSpanRangeQuery