/** * Copyright (C) 2008 10gen Inc. * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ package com.mongodb; import java.util.Iterator; import java.util.logging.Logger; /** * */ public class LazyWriteableDBCallback extends LazyDBCallback { public LazyWriteableDBCallback( DBCollection coll ){ super(coll); } @Override public Object createObject( byte[] data, int offset ){ LazyWriteableDBObject o = new LazyWriteableDBObject( data, offset, this ); //log.info("Created inner BSONObject: " + o); // need to detect DBRef but must make sure we dont search through all fields // $ref must be 1st key Iterator it = o.keySet().iterator(); if ( it.hasNext() && it.next().equals( "$ref" ) && o.containsField( "$id" ) ){ return new DBRef( _db, o ); } return o; } private static final Logger log = Logger.getLogger( LazyWriteableDBCallback.class.getName() ); }