com.aliyun.odps.io

Class IntervalYearMonthWritable

java.lang.Object

com.aliyun.odps.io.IntervalYearMonthWritable

All Implemented Interfaces:

Writable, WritableComparable<IntervalYearMonthWritable>, Comparable<IntervalYearMonthWritable>

public class IntervalYearMonthWritable
extends Object
implements WritableComparable<IntervalYearMonthWritable>

IntervalYearMonthWritable 提供了 interval_year_month 的 Writable 和 WritableComparable 的实现

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	IntervalYearMonthWritable.Comparator IntervalYearMonthWritable 对象的 WritableComparator 自然顺序实现（升序）.
static class	IntervalYearMonthWritable.DecreasingComparator IntervalYearMonthWritable 对象的 WritableComparator 降序实现.

Constructor Summary

Constructors

Constructor and Description
IntervalYearMonthWritable() 默认构造 interval 值为0的 IntervalYearMonthWritable.
IntervalYearMonthWritable(int totalMonths) 构造总月数为totalMonths的interval writable
IntervalYearMonthWritable(IntervalYearMonth value) 根据给定的 IntervalYearMonth 对象构造 IntervalYearMonthWritable

Method Summary

Modifier and Type	Method and Description
int	compareTo(IntervalYearMonthWritable o)
boolean	equals(Object o)
IntervalYearMonth	get() 返回此 IntervalYearMonthWritable 的值
int	getTotalMonths() 返回此 IntervalYearMonthWritable 的总月数
int	hashCode()
void	readFields(DataInput in) 从指定的 DataInput in 反序列化.
void	set(int totalMonths) 设置该IntervalYearMonthWritable的值
void	set(IntervalYearMonth interval) 使用IntervalYearMonth对象设置该writable的值
void	write(DataOutput out) 序列化到指定的 DataOutput out.

Methods inherited from class java.lang.Object

getClass, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

IntervalYearMonthWritable

public IntervalYearMonthWritable()

默认构造 interval 值为0的 IntervalYearMonthWritable.

IntervalYearMonthWritable

public IntervalYearMonthWritable(IntervalYearMonth value)

根据给定的 IntervalYearMonth 对象构造 IntervalYearMonthWritable

Parameters:

value -

IntervalYearMonthWritable

public IntervalYearMonthWritable(int totalMonths)

构造总月数为totalMonths的interval writable

Parameters:

totalMonths - 该interval的总月数

Method Detail

get

public IntervalYearMonth get()

返回此 IntervalYearMonthWritable 的值

Returns:

这个interval对应的IntervalYearMonth对象

set

public void set(int totalMonths)

设置该IntervalYearMonthWritable的值

Parameters:

totalMonths - 总月数

getTotalMonths

public int getTotalMonths()

返回此 IntervalYearMonthWritable 的总月数

Returns:

这个interval对应的总月数

set

public void set(IntervalYearMonth interval)

使用IntervalYearMonth对象设置该writable的值

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

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

equals

public boolean equals(Object o)

Overrides:

equals in class Object

hashCode

public int hashCode()

Overrides:

hashCode in class Object

compareTo

public int compareTo(IntervalYearMonthWritable o)

Specified by:

compareTo in interface Comparable<IntervalYearMonthWritable>