AsyncPredictFunction (Flink : Table : Common 2.1.0 API)

java.lang.Object
- org.apache.flink.table.functions.UserDefinedFunction
- - org.apache.flink.table.functions.AsyncTableFunction<RowData>
  - - org.apache.flink.table.functions.AsyncPredictFunction

All Implemented Interfaces:

Serializable, FunctionDefinition
```
@PublicEvolving
public abstract class AsyncPredictFunction
extends AsyncTableFunction<RowData>
```
A wrapper class of AsyncTableFunction for asynchronous model inference.
The output type of this table function is fixed as RowData.

See Also:

Serialized Form

Constructor Summary

Constructors
Constructor Description

AsyncPredictFunction()

Method Summary

All Methods Instance Methods Abstract Methods Concrete Methods
Modifier and Type	Method	Description
`abstract CompletableFuture<Collection<RowData>>`	`asyncPredict(RowData inputRow)`	Asynchronously predict result based on input row.
`void`	`eval(CompletableFuture<Collection<RowData>> future, Object... args)`	Invokes `asyncPredict(org.apache.flink.table.data.RowData)` and chains futures.

Methods inherited from class org.apache.flink.table.functions.AsyncTableFunction
getKind, getTypeInference

Methods inherited from class org.apache.flink.table.functions.UserDefinedFunction
close, functionIdentifier, open, toString

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Methods inherited from interface org.apache.flink.table.functions.FunctionDefinition
getRequirements, isDeterministic, supportsConstantFolding

- Constructor Detail
  - AsyncPredictFunction
```
public AsyncPredictFunction()
```
- Method Detail
  - asyncPredict
```
public abstract CompletableFuture<Collection<RowData>> asyncPredict(RowData inputRow)
```
    Asynchronously predict result based on input row.
    
    Parameters:
    
    inputRow - - A RowData that wraps input for predict function.
    
    Returns:
    
    A collection of all predicted results.
  - eval
```
public void eval(CompletableFuture<Collection<RowData>> future,
                 Object... args)
```
    Invokes asyncPredict(org.apache.flink.table.data.RowData) and chains futures.