org.apache.flink.table.data.utils

Interface CastExecutor<IN,OUT>

Type Parameters:

IN - Input internal type

OUT - Output internal type

Functional Interface:

This is a functional interface and can therefore be used as the assignment target for a lambda expression or method reference.

@Internal
 @FunctionalInterface
public interface CastExecutor<IN,OUT>

Interface to model a function that performs the casting of a value from one type to another.

Method Summary

Modifier and Type	Method and Description
OUT	cast(IN value) Cast the input value.

Method Detail

cast

@Nullable
OUT cast(@Nullable
                   IN value)
            throws TableRuntimeException

Cast the input value. The output is null only and only if the input is null. The method throws an exception if something goes wrong when casting.

Parameters:

value - Input value.

Throws:

TableRuntimeException