issue=#1281: add observer implement, including executor, multi-thread scan and trigger calculation etc. #1288
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| bool ret = true; | ||
| tera::ScanDescriptor desc(start_key); | ||
| desc.SetAsync(FLAGS_observer_scan_async_switch); | ||
| // Notify�д洢�ڵ���lg |
elithnever
reviewed
Jun 21, 2017
| class Observer { | ||
| public: | ||
| // ����۲���Ψһ��ʾ���Լ����۲��� | ||
| Observer(const std::string& observer_name, ColumnList& observed_columns); |
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observed_columns放在构造函数里参数不太好, 作为observe的参数比较好
| namespace observer { | ||
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| /// ִ���� | ||
| class Executor { |
| virtual bool Init(); | ||
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| // �û�ʵ�ִ˽ӿ����������� | ||
| virtual bool Close(); |
| } | ||
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| bool Observer::Ack(ColumnList& columns, const std::string& row, int64_t timestamp) { | ||
| return ExecutorImpl::SetOrClearNotification(columns, row, timestamp, kClearNotification); |
| int64_t timestamp; | ||
| }; | ||
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| typedef boost::shared_ptr<Tuple> TuplePtr; |
| virtual ~Observer(); | ||
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| // �û�ʵ�ִ˽ӿ��õ��۲����ϱ仯����, ��ɼ��� | ||
| virtual bool OnNotify(tera::Transaction* t, |
| } | ||
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| bool Observer::OnNotify(tera::Transaction* t, | ||
| tera::Table* table, |
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应该不需要传table的指针, 可以传入tablename, observer读写tera都通过transaction
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