| 接口 | 说明 |
|---|---|
| ExecNodeVisitor |
Visitor pattern for traversing a dag of
ExecNode objects. |
| 类 | 说明 |
|---|---|
| AbstractExecNodeExactlyOnceVisitor |
Implement of
ExecNodeVisitor. |
| ExecNodeVisitorImpl |
Implement of
ExecNodeVisitor. |
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