Does spring data mongodb support $each operator on $addToSet? - spring-data-mongodb

Question

Is there anyway i can do $each on Update.addToSet() on spring mongodb ?
Currently when i pass the array object as the addToSet param,
it's only using $addToSet without the $each, resulting in putting the passed array into the existing array.

Answer 1

I've got a working version of a custom Update class,
mixed with the solution proposed in https://jira.springsource.org/browse/DATAMONGO-471
public class MyUpdate extends Update {
public MyUpdate myAddToSet(String key, Object value, MongoOperations ops) {
BasicDBObject dbObject = new BasicDBObject();
ops.getConverter().write(value, dbObject);
this.addToSet(
key,
dbObject
);
// dont do this, will cause serialization exception
// System.out.println(this.getUpdateObject().toString());
return this;
}
public MyUpdate myAddToSetAll(String key, Collection<Object> values, MongoOperations ops) {
BasicDBList eachList = new BasicDBList();
for (Object value : values) {
BasicDBObject dbObject = new BasicDBObject();
ops.getConverter().write(value, dbObject);
eachList.add(dbObject);
}
this.addToSet(
key,
BasicDBObjectBuilder.start("$each", eachList).get()
);
// dont do this, will cause serialization exception
// System.out.println(this.getUpdateObject().toString());
return this;
}
public MyUpdate myPushAll(String key, Object[] values) {
super.addMultiFieldOperation("$pushAll", key, values);
return this;
}
public MyUpdate myPush(String key, Object[] values) {
super.addMultiFieldOperation("$push", key, values);
return this;
}
public MyUpdate myPush(String key, Object value) {
super.addMultiFieldOperation("$push", key, value);
return this;
}
}