tl.lin.data.array
Class ArrayListOfLongsWritable

java.lang.Object
  tl.lin.data.array.ArrayListOfLongs
      tl.lin.data.array.ArrayListOfLongsWritable

All Implemented Interfaces:

Cloneable, Comparable<ArrayListOfLongsWritable>, Iterable<Long>, RandomAccess, org.apache.hadoop.io.Writable, org.apache.hadoop.io.WritableComparable<ArrayListOfLongsWritable>

public class ArrayListOfLongsWritable
extends ArrayListOfLongs
implements org.apache.hadoop.io.WritableComparable<ArrayListOfLongsWritable>

Writable extension of the ArrayListOfLongs class. This class provides an efficient data structure to store a list of longs for MapReduce jobs.

Field Summary

Fields inherited from class tl.lin.data.array.ArrayListOfLongs

array, size

Constructor Summary

ArrayListOfLongsWritable()
Constructs an ArrayListOfLongsWritable object.

ArrayListOfLongsWritable(ArrayListOfLongsWritable other)
Constructs a deep copy of the ArrayListOfLongsWritable object given as parameter.

ArrayListOfLongsWritable(int initialCapacity)
Constructs an empty list with the specified initial capacity.

ArrayListOfLongsWritable(int first, int last)
Constructs a list populated with shorts in range [first, last).

ArrayListOfLongsWritable(long[] arr)
Constructs a list from an array.

Method Summary

int	compareTo(ArrayListOfLongsWritable obj) Elementwise comparison.
static ArrayListOfLongsWritable	fromArrayListOfLongs(ArrayListOfLongs a) Creates a Writable version of this list.
void	readFields(DataInput in) Deserializes this object.
String	toString()
void	write(DataOutput out) Serializes this object.

Methods inherited from class tl.lin.data.array.ArrayListOfLongs

add, add, addUnique, clear, clone, contains, ensureCapacity, equals, get, getArray, indexOf, intersection, isEmpty, iterator, lastIndexOf, merge, remove, set, setSize, shiftLastNToTop, size, sort, subList, toString, trimToSize

Methods inherited from class java.lang.Object

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

Constructor Detail

ArrayListOfLongsWritable

public ArrayListOfLongsWritable()

Constructs an ArrayListOfLongsWritable object.

ArrayListOfLongsWritable

public ArrayListOfLongsWritable(int initialCapacity)

Constructs an empty list with the specified initial capacity.

Parameters:

initialCapacity - the initial capacity of the list

ArrayListOfLongsWritable

public ArrayListOfLongsWritable(int first,
                                int last)

Constructs a list populated with shorts in range [first, last).

Parameters:

first - the smallest short in the range (inclusive)

last - the largest short in the range (exclusive)

ArrayListOfLongsWritable

public ArrayListOfLongsWritable(ArrayListOfLongsWritable other)

Constructs a deep copy of the ArrayListOfLongsWritable object given as parameter.

Parameters:

other - object to be copied

ArrayListOfLongsWritable

public ArrayListOfLongsWritable(long[] arr)

Constructs a list from an array. Defensively makes a copy of the array.

Parameters:

arr - source array

Method Detail

readFields

public void readFields(DataInput in)
                throws IOException

Deserializes this object.

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 this object.

Specified by:

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

Parameters:

out - where to write the raw byte representation

Throws:

IOException

toString

public String toString()

Overrides:

toString in class ArrayListOfLongs

fromArrayListOfLongs

public static ArrayListOfLongsWritable fromArrayListOfLongs(ArrayListOfLongs a)

Creates a Writable version of this list.

compareTo

public int compareTo(ArrayListOfLongsWritable obj)

Elementwise comparison. Shorter always comes before if it is a sublist of longer. No preference if both are empty.

Specified by:

compareTo in interface Comparable<ArrayListOfLongsWritable>

Parameters:

obj - other object this is compared against