minor: ObjectId optimization

ext/java/src/org/jbson/RubyBSONCallback.java

@@ -264,10 +264,11 @@ public class RubyBSONCallback implements BSONCallback {
     }
 
     public void gotObjectId( String name , ObjectId id ){
-       IRubyObject arg = (IRubyObject)RubyString.newString(_runtime, id.toString());
+       byte[] jbytes = id.toByteArray();
+       RubyArray arg = ja2ra(jbytes);
        Object[] args = new Object[] { arg };
 
-       Object result = JavaEmbedUtils.invokeMethod(_runtime, _rbclsObjectId, "from_string", args, Object.class);
+       Object result = JavaEmbedUtils.invokeMethod(_runtime, _rbclsObjectId, "new", args, Object.class);
 
         _put( name, (RubyObject)result );
     }

ext/java/src/org/jbson/RubyBSONEncoder.java

@@ -319,7 +319,8 @@ public class RubyBSONEncoder extends BSONEncoder {
                 }
                 else {
                     long jval = big.longValue();
-                    putLong(name, (Number)jval );
+                    _put( NUMBER_LONG , name );
+                    _buf.writeLong( jval );
                 }
             }
 
@@ -530,7 +531,7 @@ public class RubyBSONEncoder extends BSONEncoder {
         _put( OID , name );
 
         RubyArray roid = (RubyArray)JavaEmbedUtils.invokeMethod(_runtime, oid,
-            "to_a", new Object[] {}, Object.class);
+            "data", new Object[] {}, Object.class);
         byte[] joid = ra2ba( (RubyArray)roid );
 
         _buf.writeInt( convertToInt(joid, 0) );

lib/bson/types/object_id.rb

@@ -108,6 +108,13 @@ module BSON
       @data.dup
     end
 
+    # Get the array representation without cloning.
+    #
+    # @return [Array]
+    def data
+      @data
+    end
+
     # Given a string representation of an ObjectId, return a new ObjectId
     # with that value.
     #
@@ -134,13 +141,6 @@ module BSON
       str
     end
 
-    def to_e
-      @data.each do |i|
-        print i
-        print ' ' 
-      end
-    end
-
     def inspect
       "BSON::ObjectId('#{to_s}')"
     end