Updating document with the Solr Java API

[Jonatan Fournier]

Hi,

What is the Java syntax to create an update document?

I was using this in JSON to update/reset some fields of document 12345
(it contains other fields, only updating those):

{
  "add" : {
    "doc" : {
      "id":"12345",
      "foo":{"set":null},
      "bar":{"set":"baz"}
    }
  }
}

Now I'm trying to find the equivalent in Java (Embedded Server), I'm doing this:

SolrInputDocument solrDoc = new SolrInputDocument();
solrDoc.addField( "id", "12345" );
solrDoc.setField( "foo", null );
solrDoc.setField( "bar", "baz" );
server.add( solrDoc );

But instead of updating like with JSON, it overwrites the whole
document in the index. Something I'm missing?

I also tried:

SolrInputDocument solrDoc = new SolrInputDocument();
solrDoc.setField( "id", "12345" );
solrDoc.setField( "foo", null );
solrDoc.setField( "bar", "baz" );
server.add( solrDoc );

But it does the same thing. Interesting fact, when using setField()
and the id doesn't exist it will still create the document, which
wasn't the case with JSON before Yunik added a change (I'm still using
4.0.0-ALPHA, not trunk) I've discussed with him previously on this
list.

Should we be expecting the same behavior from the API and the http
JSON/XML/CSV interface?

Cheers,

--jonatan