org.petuum.jbosen.row.long_

Class DenseLongRow

java.lang.Object

org.petuum.jbosen.row.long_.LongColumnMap

org.petuum.jbosen.row.long_.DenseLongColumnMap

org.petuum.jbosen.row.long_.DenseLongRow

All Implemented Interfaces:

LongRow, Row

public final class DenseLongRow
extends DenseLongColumnMap
implements LongRow

This implementation of LongRow assumes a dense set of columns, ie. they are contiguous values from 0 to capacity - 1. In general, this class is more CPU and memory efficient than SparseLongRow.

Constructor Summary

Constructors

Constructor and Description
DenseLongRow(java.nio.ByteBuffer buffer) Construct a row by de-serializing from a ByteBuffer object.
DenseLongRow(DenseLongRow other) Copy constructor, constructs a new, deep copy of the argument.
DenseLongRow(int capacity) Construct a row by specifying a capacity.

Method Summary

Modifier and Type	Method and Description
DenseLongRow	getCopy() Returns a deep copy of this row.
void	inc(RowUpdate rowUpdate) Increment this row using a RowUpdate object.

Methods inherited from class org.petuum.jbosen.row.long_.DenseLongColumnMap

array, capacity, clear, contains, get, inc, iterator, serialize, set

Methods inherited from class org.petuum.jbosen.row.long_.LongColumnMap

incAll

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.petuum.jbosen.row.long_.LongRow

clear, get, inc, iterator, set

Methods inherited from interface org.petuum.jbosen.row.Row

serialize

Constructor Detail

DenseLongRow

public DenseLongRow(int capacity)

Construct a row by specifying a capacity. This capacity cannot change throughout the lifetime of this object.

Parameters:

capacity - capacity of the row.

DenseLongRow

public DenseLongRow(DenseLongRow other)

Copy constructor, constructs a new, deep copy of the argument.

Parameters:

other - row to construct a deep copy of.

DenseLongRow

public DenseLongRow(java.nio.ByteBuffer buffer)

Construct a row by de-serializing from a ByteBuffer object.

Parameters:

buffer - the ByteBuffer containing the serialized data.

Method Detail

getCopy

public DenseLongRow getCopy()

Returns a deep copy of this row.

Returns:

deep copy of this row.

inc

public void inc(RowUpdate rowUpdate)

Increment this row using a RowUpdate object.

Specified by:

inc in interface Row

Parameters:

rowUpdate - the RowUpdate object to apply to this row.