tl.lin.data.map

Class HMapSFW

java.lang.Object

tl.lin.data.map.HMapKF<String>

tl.lin.data.map.HMapSFW

All Implemented Interfaces:

Serializable, Cloneable, org.apache.hadoop.io.Writable, MapKF<String>

public class HMapSFW
extends HMapKF<String>
implements org.apache.hadoop.io.Writable

Writable representing a map where keys are Strings and values are floats. This class is specialized for String objects to avoid the overhead that comes with wrapping Strings inside Text objects.

See Also:

Serialized Form

Field Summary

Fields inherited from interface tl.lin.data.map.MapKF

DEFAULT_VALUE

Constructor Summary

Constructors

Constructor and Description
HMapSFW() Creates a HMapSFW object.

Method Summary

Methods

Modifier and Type	Method and Description
static HMapSFW	create(byte[] bytes) Creates a HMapSFW object from a byte array.
static HMapSFW	create(DataInput in) Creates a HMapSFW object from a DataInput.
void	readFields(DataInput in) Deserializes the map.
byte[]	serialize() Returns the serialized representation of this object as a byte array.
void	write(DataOutput out) Serializes the map.

Methods inherited from class tl.lin.data.map.HMapKF

clear, clone, containsKey, containsValue, dot, entrySet, get, getEntriesSortedByValue, getEntriesSortedByValue, increment, increment, isEmpty, keySet, length, normalize, plus, put, putAll, remove, size, toString, values

Methods inherited from class java.lang.Object

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

Methods inherited from interface tl.lin.data.map.MapKF

equals, hashCode

Constructor Detail

HMapSFW

public HMapSFW()

Creates a HMapSFW object.

Method Detail

readFields

public void readFields(DataInput in)
                throws IOException

Deserializes the map.

Specified by:

readFields in interface org.apache.hadoop.io.Writable

Parameters:

in - source for raw byte representation

Throws:

IOException

write

public void write(DataOutput out)
           throws IOException

Serializes the map.

Specified by:

write in interface org.apache.hadoop.io.Writable

Parameters:

out - where to write the raw byte representation

Throws:

IOException

serialize

public byte[] serialize()
                 throws IOException

Returns the serialized representation of this object as a byte array.

Returns:

byte array representing the serialized representation of this object

Throws:

IOException

create

public static HMapSFW create(DataInput in)
                      throws IOException

Creates a HMapSFW object from a DataInput.

Parameters:

in - source for reading the serialized representation

Returns:

a newly-created HMapSFW object

Throws:

IOException

create

public static HMapSFW create(byte[] bytes)
                      throws IOException

Creates a HMapSFW object from a byte array.

Parameters:

bytes - source for reading the serialized representation

Returns:

a newly-created HMapSFW object

Throws:

IOException