question: public TrainSchedule ( Element e ) { org . jdom2 . Attribute a ; if ( ( a = e . getAttribute ( Xml . ID ) ) != null ) { _id = a . getValue ( ) ; } else { log . warn ( "no id attribute in schedule element when reading operations" ) ; } if ( ( a = e . getAttribute ( Xml . NAME ) ) != null ) { _name = a . getValue ( ) ; } if ( ( a = e . getAttribute ( Xml . COMMENT ) ) != null ) { _comment = a . getValue ( ) ; } if ( ( a = e . getAttribute ( Xml . TRAIN_IDS ) ) != null ) { String ids = a . getValue ( ) ; String [ ] trainIds = ids . split ( "," ) ; for ( String id : trainIds ) { _trainIds . add ( id ) ; } } }
target:  Construct this Entry from XML. This member has to remain synchronized with the detailed DTD in operations-trains.xml