public DocumentPeeker() {
//使い回す Object
today = new GregorianCalendar();
ddl = new DocumentDelegater();
pnsdl = new PnsDelegater();
spec = new DiagnosisSearchSpec();
yesterday = new GregorianCalendar();
yesterday.add(GregorianCalendar.DATE, -1);
yesterday.set(Calendar.HOUR_OF_DAY, 23);