Examples of TrieField

org.apache.solr.schema.TrieField
Provides field types to support for Lucene's {@link NumericField}. See {@link org.apache.lucene.search.NumericRangeQuery} for more details.It supports integer, float, long, double and date types.
For each number being added to this field, multiple terms are generated as per the algorithm described in the above link. The possible number of terms increases dramatically with lower precision steps. For the fast range search to work, trie fields must be indexed.
Trie fields are sortable in numerical order and can be used in function queries.
Note that if you use a precisionStep of 32 for int/float and 64 for long/double/date, then multiple terms will not be generated, range search will be no faster than any other number field, but sorting will still be possible. @version $Id: TrieField.java 1201479 2011-11-13 19:11:52Z erick $ @see org.apache.lucene.search.NumericRangeQuery @since solr 1.4

Examples of org.apache.solr.schema.TrieField

          {
            return new StringSelectInQuery<String>(file,field,new HdfsToSet.TransString());
          }
          if(ft instanceof TrieField)
          {
            TrieField tft=(TrieField)ft;
            TrieTypes cdt=tft.getType();
            if(cdt.equals(TrieTypes.INTEGER))
            {
              return new NumericSelectInQuery<Integer>(field,tft.getPrecisionStep(),DataType.INT, new HdfsToSet.TransInt(),file);
            }
            if(cdt.equals(TrieTypes.LONG))
            {
              return new NumericSelectInQuery<Long>(field,tft.getPrecisionStep(),DataType.LONG, new HdfsToSet.TransLong(),file);
            }
            
            if(cdt.equals(TrieTypes.FLOAT))
            {
              return new NumericSelectInQuery<Float>(field,tft.getPrecisionStep(),DataType.FLOAT, new HdfsToSet.TransFloat(),file);
            }
            
            if(cdt.equals(TrieTypes.DOUBLE))
            {
              return new NumericSelectInQuery<Double>(field,tft.getPrecisionStep(),DataType.DOUBLE, new HdfsToSet.TransDouble(),file);
            }
            
            if(cdt.equals(TrieTypes.DATE))
            {
              return new NumericSelectInQuery<Long>(field,tft.getPrecisionStep(),DataType.LONG, new HdfsToSet.TransDate(),file);
            }
          }
        
        throw new ParseException("file type error");

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Examples of org.apache.solr.schema.TrieField

  }


  private void checkPrecisionSteps(String fieldType) {
    FieldType type = h.getCore().getSchema().getFieldType(fieldType);
    if (type instanceof TrieField) {
      TrieField field = (TrieField) type;
      assertTrue(field.getPrecisionStep() > 0 && field.getPrecisionStep() < 64);
    }
  }

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Examples of org.apache.solr.schema.TrieField

  }


  private void checkPrecisionSteps(String fieldType) {
    FieldType type = h.getCore().getSchema().getFieldType(fieldType);
    if (type instanceof TrieField) {
      TrieField field = (TrieField) type;
      assertTrue(field.getPrecisionStep() > 0 && field.getPrecisionStep() < 64);
    }
  }

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