Message extends RealmObject{
Attachment attachment;
}
Attachment extends RealmObject{
int state;
}
我想在附件中更新状态。我沿着这样的道路前进:
RealmResults<Message> allMessages = mRealm.where(Message.class)
.isNotNull("attachment")
.in("attachment.state", new Integer[]{INTERRUPTED,PENDING})
.findAll();
if (allMessages != null && allMessages.size() > 0) {
for (Message message : allMessages) {
Attachment attachment = message.getAttachment();
attachment.setState(IDLE);
}
}
有没有办法通过直接附件来更新状态?
答案 0 :(得分:1)
庵。
try(Realm r = Realm.getDefaultInstance()) {
r.executeTransaction((realm) -> {
RealmResults<Attachment> attachments = realm.where(Attachment.class)
.in("state", new Integer[]{INTERRUPTED,PENDING})
.findAll();
for(Attachment attachment: attachments) {
attachment.setState(IDLE);
}
});
}