com.aliyun.odps.io

Class StructWritable

java.lang.Object

com.aliyun.odps.io.StructWritable

All Implemented Interfaces:

Writable

public class StructWritable
extends Object
implements Writable

StructWritable 提供了 struct 类型数据 的 Writable 的实现

Constructor Summary

Constructors

Constructor and Description
StructWritable(List<Writable> values) 构造 struct schema 值为给定 values 的 StructWritable.

Method Summary

Modifier and Type	Method and Description
boolean	equals(Object o) 判断两个 StructWritable 是否相等.
List<Writable>	get() 返回此 StructWritable 的值
int	hashCode() 计算哈希值，直接返回(int) StructWritable.values.hashCode
void	readFields(DataInput in) 从指定的 DataInput in 反序列化.
void	set(List<Writable> values) 设置 StructWritable 的值
String	toString()
void	write(DataOutput out) 序列化到指定的 DataOutput out.

Methods inherited from class java.lang.Object

getClass, notify, notifyAll, wait, wait, wait

Constructor Detail

StructWritable

public StructWritable(List<Writable> values)

构造 struct schema 值为给定 values 的 StructWritable.

Parameters:

values -

Method Detail

readFields

public void readFields(DataInput in)
                throws IOException

Description copied from interface: Writable

从指定的 DataInput in 反序列化.

Specified by:

readFields in interface Writable

Throws:

IOException

write

public void write(DataOutput out)
           throws IOException

Description copied from interface: Writable

序列化到指定的 DataOutput out.

Specified by:

write in interface Writable

Throws:

IOException

set

public void set(List<Writable> values)

设置 StructWritable 的值

Parameters:

values -

get

public List<Writable> get()

返回此 StructWritable 的值

Returns:

equals

public boolean equals(Object o)

判断两个 StructWritable 是否相等.

如果两个都是 StructWritable 且值相等，返回true，否则返回false

Overrides:

equals in class Object

Parameters:

o -

Returns:

hashCode

public int hashCode()

计算哈希值，直接返回(int) StructWritable.values.hashCode

Overrides:

hashCode in class Object

toString

public String toString()

Overrides:

toString in class Object