org.apache.hadoop.io
Class VIntWritable

java.lang.Object
  extended by org.apache.hadoop.io.VIntWritable
All Implemented Interfaces:
Comparable, Writable, WritableComparable

public class VIntWritable
extends Object
implements WritableComparable

A WritableComparable for integer values stored in variable-length format. Such values take between one and five bytes. Smaller values take fewer bytes.

See Also:
WritableUtils.readVInt(DataInput)

Constructor Summary
VIntWritable()
           
VIntWritable(int value)
           
 
Method Summary
 int compareTo(Object o)
          Compares two VIntWritables.
 boolean equals(Object o)
          Returns true iff o is a VIntWritable with the same value.
 int get()
          Return the value of this VIntWritable.
 int hashCode()
           
 void readFields(DataInput in)
          Deserialize the fields of this object from in.
 void set(int value)
          Set the value of this VIntWritable.
 String toString()
           
 void write(DataOutput out)
          Serialize the fields of this object to out.
 
Methods inherited from class java.lang.Object
clone, finalize, getClass, notify, notifyAll, wait, wait, wait
 

Constructor Detail

VIntWritable

public VIntWritable()

VIntWritable

public VIntWritable(int value)
Method Detail

set

public void set(int value)
Set the value of this VIntWritable.


get

public int get()
Return the value of this VIntWritable.


readFields

public void readFields(DataInput in)
                throws IOException
Description copied from interface: Writable
Deserialize the fields of this object from in.

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

Specified by:
readFields in interface Writable
Parameters:
in - DataInput to deseriablize this object from.
Throws:
IOException

write

public void write(DataOutput out)
           throws IOException
Description copied from interface: Writable
Serialize the fields of this object to out.

Specified by:
write in interface Writable
Parameters:
out - DataOuput to serialize this object into.
Throws:
IOException

equals

public boolean equals(Object o)
Returns true iff o is a VIntWritable with the same value.

Overrides:
equals in class Object

hashCode

public int hashCode()
Overrides:
hashCode in class Object

compareTo

public int compareTo(Object o)
Compares two VIntWritables.

Specified by:
compareTo in interface Comparable

toString

public String toString()
Overrides:
toString in class Object


Copyright © 2009 The Apache Software Foundation