org.apache.lucene.index

Class SingleTermsEnum

java.lang.Object

org.apache.lucene.index.TermsEnum

org.apache.lucene.index.FilteredTermsEnum

org.apache.lucene.index.SingleTermsEnum

All Implemented Interfaces:

BytesRefIterator

public final class SingleTermsEnum
extends FilteredTermsEnum

Subclass of FilteredTermsEnum for enumerating a single term.

For example, this can be used by MultiTermQuerys that need only visit one term, but want to preserve MultiTermQuery semantics such as MultiTermQuery.getRewriteMethod().

Nested Class Summary

Nested classes/interfaces inherited from class org.apache.lucene.index.FilteredTermsEnum

FilteredTermsEnum.AcceptStatus

Nested classes/interfaces inherited from class org.apache.lucene.index.TermsEnum

TermsEnum.SeekStatus

Field Summary

Fields inherited from class org.apache.lucene.index.FilteredTermsEnum

actualTerm, tenum

Fields inherited from class org.apache.lucene.index.TermsEnum

EMPTY

Constructor Summary

Constructors

Constructor and Description
SingleTermsEnum(TermsEnum tenum, BytesRef termText) Creates a new SingleTermsEnum.

Method Summary

Modifier and Type	Method and Description
protected FilteredTermsEnum.AcceptStatus	accept(BytesRef term) Return if term is accepted, not accepted or the iteration should ended (and possibly seek).

Methods inherited from class org.apache.lucene.index.FilteredTermsEnum

attributes, docFreq, impacts, next, nextSeekTerm, ord, postings, seekCeil, seekExact, seekExact, seekExact, setInitialSeekTerm, term, termState, totalTermFreq

Methods inherited from class org.apache.lucene.index.TermsEnum

postings

Methods inherited from class java.lang.Object

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

Constructor Detail

SingleTermsEnum

public SingleTermsEnum(TermsEnum tenum,
                       BytesRef termText)

Creates a new SingleTermsEnum.

After calling the constructor the enumeration is already pointing to the term, if it exists.

Method Detail

accept

protected FilteredTermsEnum.AcceptStatus accept(BytesRef term)

Description copied from class: FilteredTermsEnum

Return if term is accepted, not accepted or the iteration should ended (and possibly seek).

Specified by:

accept in class FilteredTermsEnum