org.apache.flink.streaming.util.typeutils

接口 ScalaProductFieldAccessorFactory

public interface ScalaProductFieldAccessorFactory

Interface to interact with optional Scala field accessors.

方法概要

限定符和类型	方法和说明
<T,R,F> FieldAccessor<T,F>	createRecursiveProductFieldAccessor(int pos, org.apache.flink.api.common.typeinfo.TypeInformation<T> typeInfo, FieldAccessor<R,F> innerAccessor, org.apache.flink.api.common.ExecutionConfig config) Returns a product FieldAccessor that does support recursion.
<T,F> FieldAccessor<T,F>	createSimpleProductFieldAccessor(int pos, org.apache.flink.api.common.typeinfo.TypeInformation<T> typeInfo, org.apache.flink.api.common.ExecutionConfig config) Returns a product FieldAccessor that does not support recursion.
static ScalaProductFieldAccessorFactory	load(org.slf4j.Logger log) Loads the implementation, if it is accessible.

方法详细资料

createSimpleProductFieldAccessor

<T,F> FieldAccessor<T,F> createSimpleProductFieldAccessor(int pos,
                                                          org.apache.flink.api.common.typeinfo.TypeInformation<T> typeInfo,
                                                          org.apache.flink.api.common.ExecutionConfig config)

Returns a product FieldAccessor that does not support recursion.

createRecursiveProductFieldAccessor

<T,R,F> FieldAccessor<T,F> createRecursiveProductFieldAccessor(int pos,
                                                               org.apache.flink.api.common.typeinfo.TypeInformation<T> typeInfo,
                                                               FieldAccessor<R,F> innerAccessor,
                                                               org.apache.flink.api.common.ExecutionConfig config)

Returns a product FieldAccessor that does support recursion.

load

static ScalaProductFieldAccessorFactory load(org.slf4j.Logger log)

Loads the implementation, if it is accessible.

参数:

log - Logger to be used in case the loading fails

返回:

Loaded implementation, if it is accessible.