org.apache.flink.streaming.api.functions.windowing.delta.extractor

类 FieldsFromArray<OUT>

java.lang.Object

org.apache.flink.streaming.api.functions.windowing.delta.extractor.FieldsFromArray<OUT>

类型参数:

OUT - The type of the output array. If out is set to String, the output of the extractor will be a String[]. If it is set to String[] the output will be String[][].

所有已实现的接口:

Serializable, Extractor<Object,OUT[]>

@Internal
public class FieldsFromArray<OUT>
extends Object
implements Extractor<Object,OUT[]>

Extracts multiple fields from an array and puts them into a new array of the specified type.

另请参阅:

序列化表格

构造器概要

构造器

构造器和说明
FieldsFromArray(Class<OUT> clazz, int... indexes) Extracts multiple fields from an array and puts them in the given order into a new array of the specified type.

方法概要

限定符和类型	方法和说明
OUT[]	extract(Object in) Extracts/Converts the given input to an object of the output type.

从类继承的方法 java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

构造器详细资料

FieldsFromArray

public FieldsFromArray(Class<OUT> clazz,
                       int... indexes)

Extracts multiple fields from an array and puts them in the given order into a new array of the specified type.

参数:

clazz - the Class object representing the component type of the new array

indexes - The indexes of the fields to be extracted. Any order is possible, but not more than 255 fields due to limitations in Array.newInstance(Class, int...).

方法详细资料

extract

public OUT[] extract(Object in)

从接口复制的说明: Extractor

Extracts/Converts the given input to an object of the output type.

指定者:

extract 在接口中 Extractor<Object,OUT[]>

参数:

in - the input data

返回:

the extracted/converted data