invoked when tag detected . concode_field_sep int sizeLimit concode_elem_sep StringBuffer buffer concode_field_sep void onEntity concode_elem_sep void onStart concode_elem_sep void onText concode_elem_sep boolean needsMore concode_elem_sep String toString concode_elem_sep void onFinish
void function ( String arg0 , String arg1 , boolean arg2 ) { if ( arg1 != null ) buffer . append ( arg1 ) ; }