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

- Packages that use FieldInvertState
  Package | Description
  --- | ---
  org.apache.lucene.search.similarities | This package contains the various ranking models that can be used in Lucene.

- - ### Uses of FieldInvertState in org.apache.lucene.search.similarities

    Methods in org.apache.lucene.search.similarities with parameters of type FieldInvertState
    Modifier and Type | Method and Description
    --- | ---
    `long` | BM25Similarity.`computeNorm(FieldInvertState state)`
    `long` | PerFieldSimilarityWrapper.`computeNorm(FieldInvertState state)`
    `long` | BooleanSimilarity.`computeNorm(FieldInvertState state)`
    `abstract long` | Similarity.`computeNorm(FieldInvertState state)` Computes the normalization value for a field, given the accumulated state of term processing for this field (see `FieldInvertState`).
    `long` | MultiSimilarity.`computeNorm(FieldInvertState state)`
    `long` | TFIDFSimilarity.`computeNorm(FieldInvertState state)`
    `long` | SimilarityBase.`computeNorm(FieldInvertState state)` Encodes the document length in the same way as `TFIDFSimilarity`.
    `float` | ClassicSimilarity.`lengthNorm(FieldInvertState state)` Implemented as `state.getBoost()*lengthNorm(numTerms)`, where `numTerms` is `getLength()` if `ClassicSimilarity.setDiscountOverlaps(boolean)` is false, else it's `getLength()` - `getNumOverlap()`.
    `abstract float` | TFIDFSimilarity.`lengthNorm(FieldInvertState state)` Compute an index-time normalization value for this field instance.

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