org.apache.lucene.queries.mlt

## Class MoreLikeThisQuery

- java.lang.Object
- - org.apache.lucene.search.Query
  - - org.apache.lucene.queries.mlt.MoreLikeThisQuery

- All Implemented Interfaces:
    Cloneable

      public class MoreLikeThisQuery
      extends Query

  A simple wrapper for MoreLikeThis for use in scenarios where a Query object is required eg in custom QueryParser extensions. At query.rewrite() time the reader is used to construct the actual MoreLikeThis object and obtain the real Query object.

- - ### Constructor Summary

    Constructors
    Constructor and Description
    `MoreLikeThisQuery(String likeText, String[] moreLikeFields, Analyzer analyzer, String fieldName)`

  - ### Method Summary

    Methods
    Modifier and Type | Method and Description
    --- | ---
    `boolean` | `equals(Object obj)`
    `Analyzer` | `getAnalyzer()`
    `String` | `getLikeText()`
    `int` | `getMaxQueryTerms()`
    `int` | `getMinDocFreq()`
    `int` | `getMinTermFrequency()`
    `String[]` | `getMoreLikeFields()`
    `float` | `getPercentTermsToMatch()`
    `Set<?>` | `getStopWords()`
    `int` | `hashCode()`
    `Query` | `rewrite(IndexReader reader)`
    `void` | `setAnalyzer(Analyzer analyzer)`
    `void` | `setLikeText(String likeText)`
    `void` | `setMaxQueryTerms(int maxQueryTerms)`
    `void` | `setMinDocFreq(int minDocFreq)`
    `void` | `setMinTermFrequency(int minTermFrequency)`
    `void` | `setMoreLikeFields(String[] moreLikeFields)`
    `void` | `setPercentTermsToMatch(float percentTermsToMatch)`
    `void` | `setStopWords(Set<?> stopWords)`
    `String` | `toString(String field)`

    - ### Methods inherited from class org.apache.lucene.search.Query

      `clone, createWeight, getBoost, setBoost, toString`

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

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

- - ### Constructor Detail

    - #### MoreLikeThisQuery

          public MoreLikeThisQuery(String likeText,
                           String[] moreLikeFields,
                           Analyzer analyzer,
                           String fieldName)

      Parameters:
        `moreLikeFields` - fields used for similarity measure

  - ### Method Detail

    - #### rewrite

          public Query rewrite(IndexReader reader)
                        throws IOException

      Overrides:
        `rewrite` in class `Query`
      Throws:
        `IOException`

    - #### toString

          public String toString(String field)

      Specified by:
        `toString` in class `Query`

    - #### getPercentTermsToMatch

          public float getPercentTermsToMatch()

    - #### setPercentTermsToMatch

          public void setPercentTermsToMatch(float percentTermsToMatch)

    - #### getAnalyzer

          public Analyzer getAnalyzer()

    - #### setAnalyzer

          public void setAnalyzer(Analyzer analyzer)

    - #### getLikeText

          public String getLikeText()

    - #### setLikeText

          public void setLikeText(String likeText)

    - #### getMaxQueryTerms

          public int getMaxQueryTerms()

    - #### setMaxQueryTerms

          public void setMaxQueryTerms(int maxQueryTerms)

    - #### getMinTermFrequency

          public int getMinTermFrequency()

    - #### setMinTermFrequency

          public void setMinTermFrequency(int minTermFrequency)

    - #### getMoreLikeFields

          public String[] getMoreLikeFields()

    - #### setMoreLikeFields

          public void setMoreLikeFields(String[] moreLikeFields)

    - #### getStopWords

          public Set<?> getStopWords()

    - #### setStopWords

          public void setStopWords(Set<?> stopWords)

    - #### getMinDocFreq

          public int getMinDocFreq()

    - #### setMinDocFreq

          public void setMinDocFreq(int minDocFreq)

    - #### hashCode

          public int hashCode()

      Overrides:
        `hashCode` in class `Query`

    - #### equals

          public boolean equals(Object obj)

      Overrides:
        `equals` in class `Query`

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