com.mongodb
Class DBRef

java.lang.Object
  com.mongodb.DBRefBase
      com.mongodb.DBRef

public class DBRef
extends DBRefBase

overrides DBRefBase to understand a BSONObject representation of a reference.

MongoDB Doc Links

• dbrefs

Constructor Summary

DBRef(DB db, BSONObject o)
Creates a DBRef

DBRef(DB db, String ns, Object id)
Creates a DBRef

Method Summary

static DBObject

fetch(DB db, DBObject ref) fetches a referenced object from the database

Methods inherited from class com.mongodb.DBRefBase

equals, fetch, getDB, getId, getRef, hashCode, toString

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Constructor Detail

DBRef

public DBRef(DB db,
             BSONObject o)

Creates a DBRef

Parameters:

db - the database

o - a BSON object representing the reference

DBRef

public DBRef(DB db,
             String ns,
             Object id)

Creates a DBRef

Parameters:

db - the database

ns - the namespace where the object is stored

id - the object id

Method Detail

fetch

public static DBObject fetch(DB db,
                             DBObject ref)

fetches a referenced object from the database

Parameters:

db - the database

ref - the reference

Returns:

Throws:

MongoException