## Uses of Class
org.apache.lucene.index.ImpactsEnum

- Packages that use ImpactsEnum
  Package | Description
  --- | ---
  org.apache.lucene.codecs | Codecs API: API for customization of the encoding and structure of the index.
  org.apache.lucene.codecs.lucene99 | Lucene 9.9 file format.
  org.apache.lucene.index | Code to maintain and access indices.
  org.apache.lucene.search | Code to search indices.

- - ### Uses of ImpactsEnum in org.apache.lucene.codecs

    Methods in org.apache.lucene.codecs that return ImpactsEnum
    Modifier and Type | Method | Description
    --- | --- | ---
    `abstract ImpactsEnum` | PostingsReaderBase.`impacts​(FieldInfo fieldInfo, BlockTermState state, int flags)` | Return a `ImpactsEnum` that computes impacts with `scorer`.

  - ### Uses of ImpactsEnum in org.apache.lucene.codecs.lucene99

    Methods in org.apache.lucene.codecs.lucene99 that return ImpactsEnum
    Modifier and Type | Method | Description
    --- | --- | ---
    `ImpactsEnum` | Lucene99PostingsReader.`impacts​(FieldInfo fieldInfo, BlockTermState state, int flags)` |

  - ### Uses of ImpactsEnum in org.apache.lucene.index

    Subclasses of ImpactsEnum in org.apache.lucene.index
    Modifier and Type | Class | Description
    --- | --- | ---
    `class` | `SlowImpactsEnum` | `ImpactsEnum` that doesn't index impacts but implements the API in a legal way.

    Methods in org.apache.lucene.index that return ImpactsEnum
    Modifier and Type | Method | Description
    --- | --- | ---
    `ImpactsEnum` | FilteredTermsEnum.`impacts​(int flags)` |
    `ImpactsEnum` | FilterLeafReader.FilterTermsEnum.`impacts​(int flags)` |
    `ImpactsEnum` | MultiTermsEnum.`impacts​(int flags)` |
    `abstract ImpactsEnum` | TermsEnum.`impacts​(int flags)` | Return a `ImpactsEnum`.

  - ### Uses of ImpactsEnum in org.apache.lucene.search

    Methods in org.apache.lucene.search that return ImpactsEnum
    Modifier and Type | Method | Description
    --- | --- | ---
    `ImpactsEnum` | FuzzyTermsEnum.`impacts​(int flags)` |

    Constructors in org.apache.lucene.search with parameters of type ImpactsEnum
    Constructor | Description
    --- | ---
    `PostingsAndFreq​(PostingsEnum postings, ImpactsEnum impacts, int position, List<Term> terms)` |
    `PostingsAndFreq​(PostingsEnum postings, ImpactsEnum impacts, int position, Term... terms)` | Creates PostingsAndFreq instance
    `TermScorer​(Weight weight, ImpactsEnum impactsEnum, LeafSimScorer docScorer, boolean topLevelScoringClause)` | Construct a `TermScorer` that will use impacts to skip blocks of non-competitive documents.