org.apache.hadoop.io

类 IntWritable

java.lang.Object

org.apache.hadoop.io.IntWritable

所有已实现的接口:

Comparable, Writable, WritableComparable

public class IntWritable
extends Object
implements WritableComparable

A WritableComparable for ints.

嵌套类概要

嵌套类

限定符和类型	类和说明
static class	IntWritable.Comparator A Comparator optimized for IntWritable.

构造器概要

构造器

构造器和说明
IntWritable()
IntWritable(int value)

方法概要

方法

限定符和类型	方法和说明
int	compareTo(Object o) Compares two IntWritables.
boolean	equals(Object o) Returns true iff o is a IntWritable with the same value.
int	get() Return the value of this IntWritable.
int	hashCode()
void	readFields(DataInput in) Deserialize the fields of this object from in.
void	set(int value) Set the value of this IntWritable.
String	toString()
void	write(DataOutput out) Serialize the fields of this object to out.

从类继承的方法 java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

构造器详细资料

IntWritable

public IntWritable()

IntWritable

public IntWritable(int value)

方法详细资料

set

public void set(int value)

Set the value of this IntWritable.

get

public int get()

Return the value of this IntWritable.

readFields

public void readFields(DataInput in)
                throws IOException

从接口复制的说明: Writable

Deserialize the fields of this object from in.

For efficiency, implementations should attempt to re-use storage in the existing object where possible.

指定者:

readFields 在接口中 Writable

参数:

in - DataInput to deseriablize this object from.

抛出:

IOException

write

public void write(DataOutput out)
           throws IOException

从接口复制的说明: Writable

Serialize the fields of this object to out.

指定者:

write 在接口中 Writable

参数:

out - DataOuput to serialize this object into.

抛出:

IOException

equals

public boolean equals(Object o)

Returns true iff o is a IntWritable with the same value.

覆盖:

equals 在类中 Object

hashCode

public int hashCode()

覆盖:

hashCode 在类中 Object

compareTo

public int compareTo(Object o)

Compares two IntWritables.

指定者:

compareTo 在接口中 Comparable

toString

public String toString()

覆盖:

toString 在类中 Object