Java Doc for QueryScorer.java in  » Search-Engine » snapper » org » apache » lucene » search » highlight » Java Source Code / Java DocumentationJava Source Code and Java Documentation

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Java Source Code / Java Documentation » Search Engine » snapper » org.apache.lucene.search.highlight   Source Cross Reference   Class Diagram   Java Document (Java Doc)   java.lang.Object    org.apache.lucene.search.highlight.QueryScorer QueryScorer public class QueryScorer implements Scorer(Code) Scorer implementation which scores text fragments by the number of unique query terms found. This class uses the QueryTermExtractor class to process determine the query terms and their boosts to be used. author:    mark@searcharea.co.uk Field Summary  TextFragment currentTextFragment       float maxTermWeight       float totalScore       HashSet uniqueTermsInFragment      Constructor Summary public   QueryScorer(Query query)      public   QueryScorer(Query query, String fieldName)      public   QueryScorer(Query query, IndexReader reader, String fieldName)      public   QueryScorer(WeightedTerm[] weightedTerms)      Method Summary public  void allFragmentsProcessed()      public  float getFragmentScore()      public  float getMaxTermWeight()      The highest weighted term (useful for passing to GradientFormatter to settop end of coloring scale. public  float getTokenScore(Token token)      public  void startFragment(TextFragment newFragment)      Field Detail currentTextFragment TextFragment currentTextFragment(Code) maxTermWeight float maxTermWeight(Code) totalScore float totalScore(Code) uniqueTermsInFragment HashSet uniqueTermsInFragment(Code) Constructor Detail QueryScorer public QueryScorer(Query query)(Code) Parameters:   query - a Lucene query (ideally rewritten using query.rewrite before being passed to this class and the searcher) QueryScorer public QueryScorer(Query query, String fieldName)(Code) Parameters:   query - a Lucene query (ideally rewritten using query.rewrite before being passed to this class and the searcher) Parameters:   fieldName - the Field name which is used to match Query terms QueryScorer public QueryScorer(Query query, IndexReader reader, String fieldName)(Code) Parameters:   query - a Lucene query (ideally rewritten using query.rewrite before being passed to this class and the searcher) Parameters:   reader - used to compute IDF which can be used to a) score selected fragments better b) use graded highlights eg set font color intensity Parameters:   fieldName - the field on which Inverse Document Frequency (IDF) calculations are based QueryScorer public QueryScorer(WeightedTerm[] weightedTerms)(Code) Method Detail allFragmentsProcessed public void allFragmentsProcessed()(Code) getFragmentScore public float getFragmentScore()(Code) getMaxTermWeight public float getMaxTermWeight()(Code) The highest weighted term (useful for passing to GradientFormatter to settop end of coloring scale. getTokenScore public float getTokenScore(Token token)(Code) startFragment public void startFragment(TextFragment newFragment)(Code) Methods inherited from java.lang.Object native protected Object clone() throws CloneNotSupportedException(Code)(Java Doc) public boolean equals(Object obj)(Code)(Java Doc) protected void finalize() throws Throwable(Code)(Java Doc) final native public Class getClass()(Code)(Java Doc) native public int hashCode()(Code)(Java Doc) final native public void notify()(Code)(Java Doc) final native public void notifyAll()(Code)(Java Doc) public String toString()(Code)(Java Doc) final native public void wait(long timeout) throws InterruptedException(Code)(Java Doc) final public void wait(long timeout, int nanos) throws InterruptedException(Code)(Java Doc) final public void wait() throws InterruptedException(Code)(Java Doc)