digester.addObjectCreate( "pipeline", Pipeline.class );
digester.addCallMethod( "pipeline/source", "setSource", 1 );
digester.addCallParam( "pipeline/source", 0, "file" );
PluginCreateRule pcr = new PluginCreateRule( Transform.class );
digester.addRule( "pipeline/transform", pcr );
digester.addSetNext( "pipeline/transform", "setTransform" );
digester.addCallMethod( "pipeline/destination", "setDest", 1 );
digester.addCallParam( "pipeline/destination", 0, "file" );