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## org.apache.lucene.facet.encoding
Class UniqueValuesIntEncoder

    java.lang.Object
      org.apache.lucene.facet.encoding.IntEncoder
          org.apache.lucene.facet.encoding.IntEncoderFilter
              org.apache.lucene.facet.encoding.UniqueValuesIntEncoder

    public final class UniqueValuesIntEncoder

extends IntEncoderFilter

An `IntEncoderFilter` which ensures only unique values are encoded. The implementation assumes the values given to `encode(IntsRef, BytesRef)` are sorted. If this is not the case, you can chain this encoder with `SortingIntEncoder`.

WARNING: This API is experimental and might change in incompatible ways in the next release.

Field Summary

Fields inherited from class org.apache.lucene.facet.encoding.IntEncoderFilter
`encoder`

Constructor Summary
`UniqueValuesIntEncoder(IntEncoder encoder)` Constructs a new instance with the given encoder.

Method Summary
`IntDecoder` | `createMatchingDecoder()` Returns an `IntDecoder` which can decode the values that were encoded with this encoder.
`void` | `encode(IntsRef values, BytesRef buf)` Encodes the values to the given buffer.
`String` | `toString()`

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

Constructor Detail

### UniqueValuesIntEncoder

    public UniqueValuesIntEncoder(IntEncoder encoder)

  Constructs a new instance with the given encoder.

Method Detail

### encode

    public void encode(IntsRef values,
                       BytesRef buf)

  Description copied from class: `IntEncoder`
  Encodes the values to the given buffer. Note that the buffer's offset and length are set to 0.

  Specified by:
    `encode` in class `IntEncoder`

### createMatchingDecoder

    public IntDecoder createMatchingDecoder()

  Description copied from class: `IntEncoder`
  Returns an `IntDecoder` which can decode the values that were encoded with this encoder.

  Specified by:
    `createMatchingDecoder` in class `IntEncoder`

### toString

    public String toString()

  Overrides:
    `toString` in class `Object`

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