Package org.apache.lucene.search

Class MultiPhraseQuery.UnionFullPostingsEnum

java.lang.Object

org.apache.lucene.search.DocIdSetIterator

org.apache.lucene.index.PostingsEnum

org.apache.lucene.search.MultiPhraseQuery.UnionPostingsEnum

org.apache.lucene.search.MultiPhraseQuery.UnionFullPostingsEnum

Enclosing class:

MultiPhraseQuery

public static class MultiPhraseQuery.UnionFullPostingsEnum
extends MultiPhraseQuery.UnionPostingsEnum

Slower version of UnionPostingsEnum that delegates offsets and positions, for use by MatchesIterator

NOTE: This API is for internal purposes only and might change in incompatible ways in the next release.

Field Summary

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

ALL, FREQS, NONE, OFFSETS, PAYLOADS, POSITIONS

Fields inherited from class org.apache.lucene.search.DocIdSetIterator

NO_MORE_DOCS

Constructor Summary

Constructors

Constructor	Description
UnionFullPostingsEnum(List<PostingsEnum> subs)

Method Summary

Modifier and Type	Method	Description
int	endOffset()	Returns end offset for the current position, or -1 if offsets were not indexed.
int	freq()	Returns term frequency in the current document, or 1 if the field was indexed with IndexOptions.DOCS.
BytesRef	getPayload()	Returns the payload at this position, or null if no payload was indexed.
int	nextPosition()	Returns the next position, or -1 if positions were not indexed.
int	startOffset()	Returns start offset for the current position, or -1 if offsets were not indexed.

Methods inherited from class org.apache.lucene.search.MultiPhraseQuery.UnionPostingsEnum

advance, cost, docID, nextDoc

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

featureRequested

Methods inherited from class org.apache.lucene.search.DocIdSetIterator

all, empty, range, slowAdvance

Methods inherited from class java.lang.Object

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

Constructor Details

UnionFullPostingsEnum

public UnionFullPostingsEnum(List<PostingsEnum> subs)

Method Details

freq

public int freq()
         throws IOException

Description copied from class: PostingsEnum

Returns term frequency in the current document, or 1 if the field was indexed with IndexOptions.DOCS. Do not call this before DocIdSetIterator.nextDoc() is first called, nor after DocIdSetIterator.nextDoc() returns DocIdSetIterator.NO_MORE_DOCS.

NOTE: if the PostingsEnum was obtain with PostingsEnum.NONE, the result of this method is undefined.

Overrides:

freq in class MultiPhraseQuery.UnionPostingsEnum

Throws:

IOException

nextPosition

public int nextPosition()
                 throws IOException

Description copied from class: PostingsEnum

Returns the next position, or -1 if positions were not indexed. Calling this more than PostingsEnum.freq() times is undefined.

Overrides:

nextPosition in class MultiPhraseQuery.UnionPostingsEnum

Throws:

IOException

startOffset

public int startOffset()
                throws IOException

Description copied from class: PostingsEnum

Returns start offset for the current position, or -1 if offsets were not indexed.

Overrides:

startOffset in class MultiPhraseQuery.UnionPostingsEnum

Throws:

IOException

endOffset

public int endOffset()
              throws IOException

Description copied from class: PostingsEnum

Returns end offset for the current position, or -1 if offsets were not indexed.

Overrides:

endOffset in class MultiPhraseQuery.UnionPostingsEnum

Throws:

IOException

getPayload

public BytesRef getPayload()
                    throws IOException

Description copied from class: PostingsEnum

Returns the payload at this position, or null if no payload was indexed. You should not modify anything (neither members of the returned BytesRef nor bytes in the byte[]).

Overrides:

getPayload in class MultiPhraseQuery.UnionPostingsEnum

Throws:

IOException