DocValuesIterator

java.lang.Object
- org.apache.lucene.search.DocIdSetIterator
- - org.apache.lucene.index.DocValuesIterator

Direct Known Subclasses:

BinaryDocValues, DocValuesFieldUpdates.Iterator, NumericDocValues, ReadersAndUpdates.MergedDocValues, SortedNumericDocValues, SortedSetDocValues
```
abstract class DocValuesIterator
extends DocIdSetIterator
```

Field Summary
- Fields inherited from class org.apache.lucene.search.DocIdSetIterator
  NO_MORE_DOCS

Constructor Summary

Constructors
Constructor Description

DocValuesIterator()

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`abstract boolean`	`advanceExact(int target)`	Advance the iterator to exactly `target` and return whether `target` has a value.

Methods inherited from class org.apache.lucene.search.DocIdSetIterator
advance, all, cost, docID, empty, nextDoc, range, slowAdvance

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Constructor Detail
  - DocValuesIterator
```
DocValuesIterator()
```
- Method Detail
  - advanceExact
```
public abstract boolean advanceExact(int target)
                              throws java.io.IOException
```
    Advance the iterator to exactly target and return whether target has a value. target must be greater than or equal to the current doc ID and must be a valid doc ID, ie. ≥ 0 and < maxDoc. After this method returns, DocIdSetIterator.docID() returns target.
    
    Throws:
    
    java.io.IOException