net.vz.mongodb.jackson.internal
Class FetchableDBRef<T,K>

java.lang.Object
  net.vz.mongodb.jackson.DBRef<T,K>
      net.vz.mongodb.jackson.internal.FetchableDBRef<T,K>

public class FetchableDBRef<T,K>
extends DBRef<T,K>

DBRef that can be fetched

Since:

1.2

Author:

James Roper

Constructor Summary

FetchableDBRef(K id, JacksonDBCollection<T,K> dbCollection)

Method Summary

T	fetch() Fetch the object.
T	fetch(com.mongodb.DBObject fields) Fetch only the given fields of the object.
JacksonCollectionKey	getCollectionKey()

Methods inherited from class net.vz.mongodb.jackson.DBRef

getCollectionName, getId

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

FetchableDBRef

public FetchableDBRef(K id,
                      JacksonDBCollection<T,K> dbCollection)

Method Detail

fetch

public T fetch()

Description copied from class: DBRef

Fetch the object. Should only be called for references that have been returned by the mapper, will return null otherwise.

Deserialisation is done by the ObjectMapper that fetched the object that this reference belongs to.

Overrides:

fetch in class DBRef<T,K>

Returns:

If this DBRef was returned by the mapper, the referenced object, if it exists, or null

fetch

public T fetch(com.mongodb.DBObject fields)

Description copied from class: DBRef

Fetch only the given fields of the object. Should only be called for references that have been returned by the mapper, will return null otherwise.

Deserialisation is done by the ObjectMapper that fetched the object that this reference belongs to.

Unlike the fetch() method, calls to this are not cached.

Overrides:

fetch in class DBRef<T,K>

Parameters:

fields - The fields to fetch

Returns:

If this DBRef was returned by the mapper, the referenced object, if it exists, or null

getCollectionKey

public JacksonCollectionKey getCollectionKey()