edu.umd.cloud9.io.fastuil
Class Int2FloatOpenHashMapWritable

java.lang.Object
  it.unimi.dsi.fastutil.ints.AbstractInt2FloatFunction
      it.unimi.dsi.fastutil.ints.AbstractInt2FloatMap
          it.unimi.dsi.fastutil.ints.Int2FloatOpenHashMap
              edu.umd.cloud9.io.fastuil.Int2FloatOpenHashMapWritable

All Implemented Interfaces:

Function<Integer,Float>, Hash, Int2FloatFunction, Int2FloatMap, Serializable, Cloneable, Map<Integer,Float>, Writable

public class Int2FloatOpenHashMapWritable
extends Int2FloatOpenHashMap
implements Writable

See Also:

Serialized Form

Nested Class Summary

Nested classes/interfaces inherited from class it.unimi.dsi.fastutil.ints.AbstractInt2FloatMap

AbstractInt2FloatMap.BasicEntry

Nested classes/interfaces inherited from interface it.unimi.dsi.fastutil.Hash

Hash.Strategy<K>

Nested classes/interfaces inherited from interface it.unimi.dsi.fastutil.ints.Int2FloatMap

Int2FloatMap.Entry, Int2FloatMap.FastEntrySet

Field Summary

Fields inherited from interface it.unimi.dsi.fastutil.Hash

DEFAULT_GROWTH_FACTOR, DEFAULT_INITIAL_SIZE, DEFAULT_LOAD_FACTOR, FAST_LOAD_FACTOR, FREE, OCCUPIED, PRIMES, REMOVED, VERY_FAST_LOAD_FACTOR

Constructor Summary

Int2FloatOpenHashMapWritable()
Creates an Int2FloatOpenHashMapWritable object.

Method Summary

static Int2FloatOpenHashMapWritable	create(byte[] bytes) Returns the serialized representation of this object as a byte array.
static Int2FloatOpenHashMapWritable	create(DataInput in) Creates an Int2FloatOpenHashMapWritable object from a DataInput.
void	decode() In lazy decoding mode, populates the map with deserialized data.
int	dot(Int2FloatOpenHashMapWritable m) Computes the dot product of this map with another map.
Int2FloatMap.Entry[]	getEntriesSortedByValue() Returns entries sorted by descending value.
Int2FloatMap.Entry[]	getEntriesSortedByValue(int k) Returns top k entries sorted by descending value.
int[]	getKeys() In lazy decoding mode, returns an array of all the keys if the map hasn't been decoded yet.
static boolean	getLazyDecodeFlag() Returns the value of the lazy decoding flag
float[]	getValues() In lazy decoding mode, returns an array of all the values if the map hasn't been decoded yet.
boolean	hasBeenDecoded()
void	lazyplus(Int2FloatOpenHashMapWritable m) In lazy decoding mode, adds values from keys of another map to this map.
void	plus(Int2FloatOpenHashMapWritable m) Adds values of keys from another map to this map.
void	readFields(DataInput in) Deserializes the map.
byte[]	serialize() Returns the serialized representation of this object as a byte array.
static void	setLazyDecodeFlag(boolean b) Sets the lazy decoding flag.
void	write(DataOutput out) Serializes the map.

Methods inherited from class it.unimi.dsi.fastutil.ints.Int2FloatOpenHashMap

clear, clone, containsKey, containsValue, get, get, growthFactor, growthFactor, hashCode, int2FloatEntrySet, isEmpty, keySet, put, put, rehash, remove, remove, size, trim, trim, values

Methods inherited from class it.unimi.dsi.fastutil.ints.AbstractInt2FloatMap

containsValue, entrySet, equals, putAll, toString

Methods inherited from class it.unimi.dsi.fastutil.ints.AbstractInt2FloatFunction

containsKey, defaultReturnValue, defaultReturnValue, get

Methods inherited from class java.lang.Object

getClass, notify, notifyAll, wait, wait, wait

Methods inherited from interface it.unimi.dsi.fastutil.ints.Int2FloatFunction

defaultReturnValue, defaultReturnValue

Methods inherited from interface it.unimi.dsi.fastutil.Function

containsKey, get

Methods inherited from interface java.util.Map

containsKey, get

Constructor Detail

Int2FloatOpenHashMapWritable

public Int2FloatOpenHashMapWritable()

Creates an Int2FloatOpenHashMapWritable object.

Method Detail

readFields

public void readFields(DataInput in)
                throws IOException

Deserializes the map.

Specified by:

readFields in interface Writable

Parameters:

in - source for raw byte representation

Throws:

IOException

decode

public void decode()
            throws IOException

In lazy decoding mode, populates the map with deserialized data. Otherwise, does nothing.

Throws:

IOException

hasBeenDecoded

public boolean hasBeenDecoded()

write

public void write(DataOutput out)
           throws IOException

Serializes the map.

Specified by:

write in interface 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 Int2FloatOpenHashMapWritable create(DataInput in)
                                           throws IOException

Creates an Int2FloatOpenHashMapWritable object from a DataInput.

Parameters:

in - DataInput for reading the serialized representation

Returns:

a newly-created Int2FloatOpenHashMapWritable object

Throws:

IOException

create

public static Int2FloatOpenHashMapWritable create(byte[] bytes)
                                           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

plus

public void plus(Int2FloatOpenHashMapWritable m)

Adds values of keys from another map to this map.

Parameters:

m - the other map

dot

public int dot(Int2FloatOpenHashMapWritable m)

Computes the dot product of this map with another map.

Parameters:

m - the other map

setLazyDecodeFlag

public static void setLazyDecodeFlag(boolean b)

Sets the lazy decoding flag.

Parameters:

b - the value of the lazy decoding flag

getLazyDecodeFlag

public static boolean getLazyDecodeFlag()

Returns the value of the lazy decoding flag

Returns:

the value of the lazy decoding flag

getKeys

public int[] getKeys()

In lazy decoding mode, returns an array of all the keys if the map hasn't been decoded yet. Otherwise, returns null.

Returns:

an array of all the keys

getValues

public float[] getValues()

In lazy decoding mode, returns an array of all the values if the map hasn't been decoded yet. Otherwise, returns null.

Returns:

an array of all the values

lazyplus

public void lazyplus(Int2FloatOpenHashMapWritable m)

In lazy decoding mode, adds values from keys of another map to this map. This map must have already been decoded, but the other map must not have been already decoded.

Parameters:

m - the other map

getEntriesSortedByValue

public Int2FloatMap.Entry[] getEntriesSortedByValue()

Returns entries sorted by descending value. Ties broken by the key.

Returns:

entries sorted by descending value

getEntriesSortedByValue

public Int2FloatMap.Entry[] getEntriesSortedByValue(int k)

Returns top k entries sorted by descending value. Ties broken by the key.

Parameters:

k - number of entries to return

Returns:

top k entries sorted by descending value