@Override public ByteBuffer toByteBuffer( final BucketScopedRowKey<K> scopedRowKey ) { final CompositeBuilder builder = Composites.newCompositeBuilder(); //add the organization's id ID_SER.toComposite( builder, scopedRowKey.getScope() ); //add the bucket builder.addInteger( scopedRowKey.getBucketNumber() ); //add the key type keySerializer.toComposite( builder, scopedRowKey.getKey() ); return builder.build(); }