org.apache.lucene.facet.search
Class DocValuesCategoryListIterator

java.lang.Object
  org.apache.lucene.facet.search.DocValuesCategoryListIterator

All Implemented Interfaces:

CategoryListIterator

public class DocValuesCategoryListIterator
extends Object
implements CategoryListIterator

A CategoryListIterator which reads the ordinals from a BinaryDocValues.

Constructor Summary

DocValuesCategoryListIterator(String field, IntDecoder decoder)
Constructs a new DocValuesCategoryListIterator.

Method Summary

boolean	equals(Object o)
void	getOrdinals(int docID, IntsRef ints) Stores the category ordinals of the given document ID in the given IntsRef, starting at position 0 upto IntsRef.length.
int	hashCode()
boolean	setNextReader(AtomicReaderContext context) Sets the AtomicReaderContext for which CategoryListIterator.getOrdinals(int, IntsRef) calls will be made.
String	toString()

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Constructor Detail

DocValuesCategoryListIterator

public DocValuesCategoryListIterator(String field,
                                     IntDecoder decoder)

Constructs a new DocValuesCategoryListIterator.

Method Detail

hashCode

public int hashCode()

Overrides:

hashCode in class Object

equals

public boolean equals(Object o)

Overrides:

equals in class Object

setNextReader

public boolean setNextReader(AtomicReaderContext context)
                      throws IOException

Description copied from interface: CategoryListIterator

Sets the AtomicReaderContext for which CategoryListIterator.getOrdinals(int, IntsRef) calls will be made. Returns true iff any of the documents in this reader have category ordinals. This method must be called before any calls to CategoryListIterator.getOrdinals(int, IntsRef).

Specified by:

setNextReader in interface CategoryListIterator

Throws:

IOException

getOrdinals

public void getOrdinals(int docID,
                        IntsRef ints)
                 throws IOException

Description copied from interface: CategoryListIterator

Stores the category ordinals of the given document ID in the given IntsRef, starting at position 0 upto IntsRef.length. Grows the IntsRef if it is not large enough.

NOTE: if the requested document does not have category ordinals associated with it, IntsRef.length is set to zero.

Specified by:

getOrdinals in interface CategoryListIterator

Throws:

IOException

toString

public String toString()

Overrides:

toString in class Object