org.petuum.jbosen.row.float_

Class SparseFloatRow

java.lang.Object

org.petuum.jbosen.row.float_.FloatColumnMap

org.petuum.jbosen.row.float_.SparseFloatColumnMap

org.petuum.jbosen.row.float_.SparseFloatRow

All Implemented Interfaces:

FloatRow, Row

public class SparseFloatRow
extends SparseFloatColumnMap
implements FloatRow

This implementation of FloatRow assumes a sparse set of columns, ie. column IDs can be any int value. In general, this class is less CPU and memory efficient than DenseFloatRow.

Constructor Summary

Constructors

Constructor and Description
SparseFloatRow() Construct a new object, this object initially contains no columns (ie.
SparseFloatRow(java.nio.ByteBuffer buffer) Construct an object by de-serializing from a ByteBuffer object.
SparseFloatRow(SparseFloatRow other) Copy constructor, constructs a new, deep copy of the argument.

Method Summary

Modifier and Type	Method and Description
SparseFloatRow	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.float_.SparseFloatColumnMap

clear, contains, get, inc, iterator, map, serialize, set, size

Methods inherited from class org.petuum.jbosen.row.float_.FloatColumnMap

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.float_.FloatRow

clear, get, inc, iterator, set

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

serialize

Constructor Detail

SparseFloatRow

public SparseFloatRow()

Construct a new object, this object initially contains no columns (ie. all columns are implicitly zero).

SparseFloatRow

public SparseFloatRow(SparseFloatRow other)

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

Parameters:

other - object to construct a deep copy of.

SparseFloatRow

public SparseFloatRow(java.nio.ByteBuffer buffer)

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

Parameters:

buffer - the ByteBuffer containing the serialized data.

Method Detail

getCopy

public SparseFloatRow 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.