Uses of Interface

Packages that use BSONEncoder
com.mongodb Main package with core files. 
org.bson Contains the base BSON classes and Encoder/Decoder. 

Uses of BSONEncoder in com.mongodb

Classes in com.mongodb that implement BSONEncoder
 class DefaultDBEncoder

Uses of BSONEncoder in org.bson

Classes in org.bson that implement BSONEncoder
 class BasicBSONEncoder
          this is meant to be pooled or cached there is some per instance memory for string conversion, etc...