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## org.apache.lucene.index
Class DocsAndPositionsEnum

    java.lang.Object
      org.apache.lucene.search.DocIdSetIterator
          org.apache.lucene.index.DocsEnum
              org.apache.lucene.index.DocsAndPositionsEnum

Direct Known Subclasses:
  FilterAtomicReader.FilterDocsAndPositionsEnum, MappingMultiDocsAndPositionsEnum, MultiDocsAndPositionsEnum

    public abstract class DocsAndPositionsEnum

extends DocsEnum

Also iterates through positions.

Field Summary
`static int` | `FLAG_OFFSETS` Flag to pass to `TermsEnum.docsAndPositions(Bits,DocsAndPositionsEnum,int)` if you require offsets in the returned enum.
`static int` | `FLAG_PAYLOADS` Flag to pass to `TermsEnum.docsAndPositions(Bits,DocsAndPositionsEnum,int)` if you require payloads in the returned enum.

Fields inherited from class org.apache.lucene.index.DocsEnum
`FLAG_FREQS, FLAG_NONE`

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

Constructor Summary
`protected` | `DocsAndPositionsEnum()` Sole constructor.

Method Summary
`abstract int` | `endOffset()` Returns end offset for the current position, or -1 if offsets were not indexed.
`abstract BytesRef` | `getPayload()` Returns the payload at this position, or null if no payload was indexed.
`abstract int` | `nextPosition()` Returns the next position.
`abstract int` | `startOffset()` Returns start offset for the current position, or -1 if offsets were not indexed.

Methods inherited from class org.apache.lucene.index.DocsEnum
`attributes, freq`

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

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

Field Detail

### FLAG_OFFSETS

    public static final int FLAG_OFFSETS

  Flag to pass to `TermsEnum.docsAndPositions(Bits,DocsAndPositionsEnum,int)` if you require offsets in the returned enum.

  See Also:
    Constant Field Values

### FLAG_PAYLOADS

    public static final int FLAG_PAYLOADS

  Flag to pass to `TermsEnum.docsAndPositions(Bits,DocsAndPositionsEnum,int)` if you require payloads in the returned enum.

  See Also:
    Constant Field Values

Constructor Detail

### DocsAndPositionsEnum

    protected DocsAndPositionsEnum()

  Sole constructor. (For invocation by subclass constructors, typically implicit.)

Method Detail

### nextPosition

    public abstract int nextPosition()
                              throws IOException

  Returns the next position. You should only call this up to `DocsEnum.freq()` times else the behavior is not defined. If positions were not indexed this will return -1; this only happens if offsets were indexed and you passed needsOffset=true when pulling the enum.

  Throws:
    `IOException`

### startOffset

    public abstract int startOffset()
                             throws IOException

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

  Throws:
    `IOException`

### endOffset

    public abstract int endOffset()
                           throws IOException

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

  Throws:
    `IOException`

### getPayload

    public abstract BytesRef getPayload()
                                 throws IOException

  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[]).

  Throws:
    `IOException`

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