Operator (ray streaming api 1.9.2 API)

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所有超级接口:

Serializable

所有已知子接口:

OneInputOperator<T>, SourceOperator<T>, TwoInputOperator<T,O>

所有已知实现类:

ChainedOperator, FilterOperator, FlatMapOperator, JoinOperator, KeyByOperator, MapOperator, PythonOperator, PythonOperator.ChainedPythonOperator, ReduceOperator, SinkOperator, SourceOperatorImpl, StreamOperator, UnionOperator
```
public interface Operator
extends Serializable
```

方法概要

所有方法实例方法抽象方法
限定符和类型	方法和说明
`void`	`close()`
`void`	`finish()`
`ChainStrategy`	`getChainStrategy()`
`Function`	`getFunction()`
`Language`	`getLanguage()`
`String`	`getName()`
`OperatorType`	`getOpType()`
`void`	`loadCheckpoint(Serializable checkpointObject)` See `Function.loadCheckpoint(Serializable)`.
`void`	`open(List<Collector> collectors, RuntimeContext runtimeContext)`
`Serializable`	`saveCheckpoint()` See `Function.saveCheckpoint()`.

方法详细资料

getName
```
String getName()
```

open

void open(List<Collector> collectors,
          RuntimeContext runtimeContext)

finish
```
void finish()
```

close
```
void close()
```

getFunction
```
Function getFunction()
```

getLanguage
```
Language getLanguage()
```

getOpType
```
OperatorType getOpType()
```

getChainStrategy
```
ChainStrategy getChainStrategy()
```

saveCheckpoint
```
Serializable saveCheckpoint()
```
See Function.saveCheckpoint().

loadCheckpoint
```
void loadCheckpoint(Serializable checkpointObject)
```
See Function.loadCheckpoint(Serializable).

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