Re: How to use DocValues with TextField

[Harry Yoo]

Hi, I actually needed this functionality for a long time and I made up an 
extended data type to work around. 

In my use case, I need a case-insensitive search for a relatively short string 
and at the same time, I need faceting on the original string. For example, 
“Human, Home sapiens’ is an original input, and I want it to be searched by 
human, Human, homo sapiens or Homo Sapiens. 

Here is my workaround,

public class TextDocValueField extends TextField {

  @Override
  public List<IndexableField> createFields(SchemaField field, Object value, 
float boost) {
    if (field.hasDocValues()) {
      List<IndexableField> fields = new ArrayList<>();
      fields.add(createField(field, value, boost));
      final BytesRef bytes = new BytesRef(value.toString());
      if (field.multiValued()) {
        fields.add(new SortedSetDocValuesField(field.getName(), bytes));
      } else {
        fields.add(new SortedDocValuesField(field.getName(), bytes));
      }
      return fields;
    } else {
//      return Collections.singletonList(createField(field, value, boost));
      return super.createFields(field, value, boost);
    }
  }

  @Override
  public void checkSchemaField(final SchemaField field) {
    // do nothing
  }

  @Override
  public boolean multiValuedFieldCache() {
    return false;
  }
}

I wish this can be supported by solr so that I don’t have to maintain my own 
repo.



What do you think?

Regards,
Harry


> On Jan 5, 2016, at 10:51 PM, Alok Bhandari <alokomprakashbhand...@gmail.com> 
> wrote:
> 
> Thanks Markus.
> 
> 
> 
> --
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> http://lucene.472066.n3.nabble.com/How-to-use-DocValues-with-TextField-tp4248647p4248797.html
> Sent from the Solr - User mailing list archive at Nabble.com.