Package opennlp.tools.doccat

## Class BagOfWordsFeatureGenerator

- java.lang.Object
- - opennlp.tools.doccat.BagOfWordsFeatureGenerator

- All Implemented Interfaces:
    `FeatureGenerator`

      public class BagOfWordsFeatureGenerator
      extends Object
      implements FeatureGenerator

  Generates a feature for each word in a document.

- - ### Constructor Summary

    Constructors
    Constructor | Description
    --- | ---
    `BagOfWordsFeatureGenerator()` | Instantiates a default `BagOfWordsFeatureGenerator` instance.

  - ### Method Summary

    All Methods Instance Methods Concrete Methods
    Modifier and Type | Method | Description
    --- | --- | ---
    `Collection<String>` | `extractFeatures​(String[] text, Map<String,​Object> extraInformation)` | Extracts features from given `text` fragments.

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

      `equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait`

- - ### Constructor Detail

    - #### BagOfWordsFeatureGenerator

          public BagOfWordsFeatureGenerator()

      Instantiates a default `BagOfWordsFeatureGenerator` instance.

  - ### Method Detail

    - #### extractFeatures

          public Collection<String> extractFeatures​(String[] text,
                                                    Map<String,​Object> extraInformation)

      Description copied from interface: `FeatureGenerator`
      Extracts features from given `text` fragments.
      Specified by:
        `extractFeatures` in interface `FeatureGenerator`
      Parameters:
        `text` - The text fragments to extract features from
        `extraInformation` - Optional extra information to be used by the `FeatureGenerator`.
      Returns:
        A collection of features.