org.apache.lucene.queries.function.valuesource

## Class LiteralValueSource

- java.lang.Object
- - org.apache.lucene.queries.function.ValueSource
  - - org.apache.lucene.queries.function.valuesource.LiteralValueSource

-     public class LiteralValueSource
      extends ValueSource

  Pass a the field value through as a String, no matter the type // Q: doesn't this mean it's a "string"?

- - ### Field Summary

    Fields
    Modifier and Type | Field and Description
    --- | ---
    `protected BytesRef` | `bytesRef`
    `static int` | `hash`
    `protected String` | `string`

  - ### Constructor Summary

    Constructors
    Constructor and Description
    `LiteralValueSource(String string)`

  - ### Method Summary

    All Methods Instance Methods Concrete Methods
    Modifier and Type | Method and Description
    --- | ---
    `String` | `description()` description of field, used in explain()
    `boolean` | `equals(Object o)`
    `String` | `getValue()` returns the literal value
    `FunctionValues` | `getValues(Map context, LeafReaderContext readerContext)` Gets the values for this reader and the context that was previously passed to createWeight().
    `int` | `hashCode()`

    - ### Methods inherited from class org.apache.lucene.queries.function.ValueSource

      `asDoubleValuesSource, asLongValuesSource, createWeight, fromDoubleValuesSource, getSortField, newContext, toString`

    - ### Methods inherited from class java.lang.Object

      `clone, finalize, getClass, notify, notifyAll, wait, wait, wait`

- - ### Field Detail

    - #### string

          protected final String string

    - #### bytesRef

          protected final BytesRef bytesRef

    - #### hash

          public static final int hash

  - ### Constructor Detail

    - #### LiteralValueSource

          public LiteralValueSource(String string)

  - ### Method Detail

    - #### getValue

          public String getValue()

      returns the literal value

    - #### getValues

          public FunctionValues getValues(Map context,
                                          LeafReaderContext readerContext)
                                   throws IOException

      Description copied from class: `ValueSource`
      Gets the values for this reader and the context that was previously passed to createWeight(). The values must be consumed in a forward docID manner, and you must call this method again to iterate through the values again.
      Specified by:
        `getValues` in class `ValueSource`
      Throws:
        `IOException`

    - #### description

          public String description()

      Description copied from class: `ValueSource`
      description of field, used in explain()
      Specified by:
        `description` in class `ValueSource`

    - #### equals

          public boolean equals(Object o)

      Specified by:
        `equals` in class `ValueSource`

    - #### hashCode

          public int hashCode()

      Specified by:
        `hashCode` in class `ValueSource`

Copyright © 2000-2024 Apache Software Foundation. All Rights Reserved.