Examples of DocValues

org.apache.lucene.search.function.DocValues
Expert: represents field values as different types. Normally created via a {@link org.apache.lucene.search.function.ValueSource ValueSuorce} for a particular field and reader.
WARNING: The status of the search.function package is experimental. The APIs introduced here might change in the future and will not be supported anymore in such a case. @author yonik
org.apache.solr.search.function.DocValues
Represents field values as different types. Normally created via a {@link ValueSource} for a particular field and reader. @version $Id: DocValues.java 1140724 2011-06-28 17:00:20Z yonik $

Examples of org.apache.lucene.search.function.DocValues

  /*(non-Javadoc) @see org.apache.lucene.search.function.FieldCacheSource#getCachedValues(org.apache.lucene.search.FieldCache, java.lang.String, org.apache.lucene.index.IndexReader) */
  public DocValues getCachedFieldValues (FieldCache cache, String field, IndexReader reader) throws IOException {
    final short[] arr = (parser==null) ?  
      cache.getShorts(reader, field) : 
      cache.getShorts(reader, field, parser);
    return new DocValues() {
      /*(non-Javadoc) @see org.apache.lucene.search.function.DocValues#floatVal(int) */
      public float floatVal(int doc) { 
        return (float) arr[doc];
      }
      /*(non-Javadoc) @see org.apache.lucene.search.function.DocValues#intVal(int) */

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Examples of org.apache.lucene.search.function.DocValues

  /*(non-Javadoc) @see org.apache.lucene.search.function.FieldCacheSource#getCachedValues(org.apache.lucene.search.FieldCache, java.lang.String, org.apache.lucene.index.IndexReader) */
  public DocValues getCachedFieldValues (FieldCache cache, String field, IndexReader reader) throws IOException {
    final int[] arr = (parser==null) ?  
      cache.getInts(reader, field) : 
      cache.getInts(reader, field, parser);
    return new DocValues() {
      /*(non-Javadoc) @see org.apache.lucene.search.function.DocValues#floatVal(int) */
      public float floatVal(int doc) { 
        return (float) arr[doc]; 
      }
      /*(non-Javadoc) @see org.apache.lucene.search.function.DocValues#intVal(int) */

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Examples of org.apache.lucene.search.function.DocValues

  /*(non-Javadoc) @see org.apache.lucene.search.function.FieldCacheSource#getCachedValues(org.apache.lucene.search.FieldCache, java.lang.String, org.apache.lucene.index.IndexReader) */
  public DocValues getCachedFieldValues (FieldCache cache, String field, IndexReader reader) throws IOException {
    final float[] arr = (parser==null) ?
      cache.getFloats(reader, field) :
      cache.getFloats(reader, field, parser);
    return new DocValues() {
      /*(non-Javadoc) @see org.apache.lucene.search.function.DocValues#floatVal(int) */
      public float floatVal(int doc) {
        return arr[doc];      
      }
      /*(non-Javadoc) @see org.apache.lucene.search.function.DocValues#toString(int) */

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Examples of org.apache.solr.search.function.DocValues

      return field;
    }


    @Override
    public DocValues getValues(Map context, final IndexReader reader) throws IOException {
      return new DocValues() {
          private final int seed = getSeed(field, reader);
          @Override
          public float floatVal(int doc) {
            return (float)hash(doc+seed);
          }

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Examples of org.apache.solr.search.function.DocValues

    return "const(" + constant + ")";
  }


  @Override
  public DocValues getValues(Map context, IndexReader reader) throws IOException {
    return new DocValues() {
      @Override
      public float floatVal(int doc) {
        return fv;
      }

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Examples of org.apache.solr.search.function.DocValues

      return DoubleParser.this.name();
    }


    @Override
    public DocValues getValues(Map context, IndexReader reader) throws IOException {
      final DocValues vals = source.getValues(context, reader);
      return new DocValues() {
        @Override
        public float floatVal(int doc) {
          return (float) doubleVal(doc);
        }


        @Override
        public int intVal(int doc) {
          return (int) doubleVal(doc);
        }


        @Override
        public long longVal(int doc) {
          return (long) doubleVal(doc);
        }


        @Override
        public double doubleVal(int doc) {
          return func(doc, vals);
        }


        @Override
        public String strVal(int doc) {
          return Double.toString(doubleVal(doc));
        }


        @Override
        public String toString(int doc) {
          return name() + '(' + vals.toString(doc) + ')';
        }
      };
    }

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Examples of org.apache.solr.search.function.DocValues

      return name() + "(" + a.description() + "," + b.description() + ")";
    }


    @Override
    public DocValues getValues(Map context, IndexReader reader) throws IOException {
      final DocValues aVals = a.getValues(context, reader);
      final DocValues bVals = b.getValues(context, reader);
      return new DocValues() {
        @Override
        public float floatVal(int doc) {
          return (float) doubleVal(doc);
        }


        @Override
        public int intVal(int doc) {
          return (int) doubleVal(doc);
        }


        @Override
        public long longVal(int doc) {
          return (long) doubleVal(doc);
        }


        @Override
        public double doubleVal(int doc) {
          return func(doc, aVals, bVals);
        }


        @Override
        public String strVal(int doc) {
          return Double.toString(doubleVal(doc));
        }


        @Override
        public String toString(int doc) {
          return name() + '(' + aVals.toString(doc) + ',' + bVals.toString(doc) + ')';
        }
      };
    }

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Examples of org.apache.solr.search.function.DocValues

  public DocValues getValues(Map context, IndexReader reader) throws IOException {
    int size = sources.size();


    // special-case x,y and lat,lon since it's so common
    if (size==2) {
      final DocValues x = sources.get(0).getValues(context, reader);
      final DocValues y = sources.get(1).getValues(context, reader);
      return new DocValues() {
        @Override
        public void byteVal(int doc, byte[] vals) {
          vals[0] = x.byteVal(doc);
          vals[1] = y.byteVal(doc);
        }


        @Override
        public void shortVal(int doc, short[] vals) {
          vals[0] = x.shortVal(doc);
          vals[1] = y.shortVal(doc);
        }
        @Override
        public void intVal(int doc, int[] vals) {
          vals[0] = x.intVal(doc);
          vals[1] = y.intVal(doc);
        }
        @Override
        public void longVal(int doc, long[] vals) {
          vals[0] = x.longVal(doc);
          vals[1] = y.longVal(doc);
        }
        @Override
        public void floatVal(int doc, float[] vals) {
          vals[0] = x.floatVal(doc);
          vals[1] = y.floatVal(doc);
        }
        @Override
        public void doubleVal(int doc, double[] vals) {
          vals[0] = x.doubleVal(doc);
          vals[1] = y.doubleVal(doc);
        }
        @Override
        public void strVal(int doc, String[] vals) {
          vals[0] = x.strVal(doc);
          vals[1] = y.strVal(doc);
        }
        @Override
        public String toString(int doc) {
          return name() + "(" + x.toString(doc) + "," + y.toString(doc) + ")";
        }
      };
    }




    final DocValues[] valsArr = new DocValues[size];
    for (int i = 0; i < size; i++) {
      valsArr[i] = sources.get(i).getValues(context, reader);
    }


    return new DocValues() {
      @Override
      public void byteVal(int doc, byte[] vals) {
        for (int i = 0; i < valsArr.length; i++) {
          vals[i] = valsArr[i].byteVal(doc);
        }

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Examples of org.apache.solr.search.function.DocValues

  @Override
  public DocValues getValues(Map context, IndexReader reader) throws IOException {
    final int[] arr = (parser==null) ?
            cache.getInts(reader, field) :
            cache.getInts(reader, field, parser);
    return new DocValues() {
      @Override
      public float floatVal(int doc) {
        return (float)arr[doc];
      }

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Examples of org.apache.solr.search.function.DocValues

    final FieldCache.StringIndex sindex = FieldCache.DEFAULT.getStringIndex(reader, field);


    final int arr[] = sindex.order;
    final int end = sindex.lookup.length;


    return new DocValues() {
      @Override
      public float floatVal(int doc) {
        return (float)(end - arr[doc]);
      }

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