Package 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 Details

    • MoreLikeThisQuery

      public MoreLikeThisQuery(String likeText, String[] moreLikeFields, Analyzer analyzer, String fieldName)
      Parameters:
      moreLikeFields - fields used for similarity measure

  • Method Details

    • rewrite

      public Query rewrite(IndexReader reader) throws IOException
      Description copied from class: Query
      Expert: called to re-write queries into primitive queries. For example, a PrefixQuery will be rewritten into a BooleanQuery that consists of TermQuerys.
      Overrides:
      rewrite in class Query
      Throws:
      IOException

    • toString

      public String toString(String field)
      Description copied from class: Query
      Prints a query to a string, with field assumed to be the default field and omitted.
      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