public void testGuava(){
PrepayTradeRecord ptr = new PrepayTradeRecord();
ptr.setPrepayAccId(1L);
PrepayTradeRecord ptr2 = new PrepayTradeRecord();
ptr2.setPrepayAccId(2L);
PrepayTradeRecord ptr3 = new PrepayTradeRecord();
ptr3.setPrepayAccId(3L);
PrepayPayRecord ppr = new PrepayPayRecord();
ppr.setPrepayAccId(2L);
ppr.setPrepayRecordId(2L);
PrepayPayRecord ppr2 = new PrepayPayRecord();
ppr2.setPrepayAccId(1L);
ppr2.setPrepayRecordId(1L);
PrepayPayRecord ppr3 = new PrepayPayRecord();
ppr3.setPrepayAccId(3L);
ppr3.setPrepayRecordId(3L);
List<PrepayTradeRecord> ptrlist = Lists.newArrayList();
List<PrepayPayRecord> pprlist = Lists.newArrayList();
ptrlist.add(ptr);
ptrlist.add(ptr2);
ptrlist.add(ptr3);
pprlist.add(ppr); pprlist.add(ppr2); pprlist.add(ppr3);
List<Long> recordIds = Lists.transform(pprlist,new Function<PrepayPayRecord, Long>() {
@Override
public Long apply(PrepayPayRecord input) {
return input.getPrepayRecordId();
}
});
Map<Long, PrepayPayRecord> map = Maps.uniqueIndex(pprlist, new Function<PrepayPayRecord, Long>() {
@Override
public Long apply(PrepayPayRecord input) {
return input.getPrepayRecordId();
}
});
System.out.println(recordIds);
System.out.println(map);
}
//對List集合進行排序(升序)
Collections.sort(destInventoryDetails, new Comparator<InventoryDetail>() {
@Override
public int compare(InventoryDetail o1, InventoryDetail o2) {
return o1.getBalance().intValue() - o2.getBalance().intValue();
}
});
//對TreeMap集合進行排序(升序)
Map<String, List<RequisitionSupplement>> destMap = new TreeMap<>(new Comparator<String>(){
public int compare(String o1, String o2) {
//指定排序器按照降序排列
return o2.compareTo(o1);
}
});