index updateasync

[lhammond]

Hi Folks,
I'm a bit confused on how to update an indexed document.
It appears that I need to make a Map of the updated fields, but am unclear as to what the updateScript needs to be. Any tips?

 Map<String, Object> map = new HashMap<String,Object>();
 map.put("name", o.getName());
 map.put("description", o.getDescription());       
 map.put("tags", o.getTags());
 MyIndexClass a = new MyIndexClass(b);
 a.updateAsync(map, null);

0fd93ed

[hossein761]

you should pass the update script in the a.updateASync(map,...) instead of null.
This is the method I use:

public static String generateUpdateScript(Set<String> fields) {
        StringBuilder updateStringBuilder = new StringBuilder();
        for(String field:fields){
            updateStringBuilder.append("ctx._source.")
                               .append(field)
                               .append("=")
                               .append(field)
                               .append(";");
        }
        return updateStringBuilder.toString();
    }

Pass the keys of your map as arguments. Remember that my script works only for replacing values and not any other fancy stuff that is mentioned in the ES api documentation.