cern.colt.matrix.impl

Class AbstractMatrix

java.lang.Object

cern.colt.PersistentObject

cern.colt.matrix.impl.AbstractMatrix

All Implemented Interfaces:

Serializable, Cloneable

Direct Known Subclasses:

AbstractMatrix1D, AbstractMatrix2D, AbstractMatrix3D

public abstract class AbstractMatrix
extends PersistentObject

Abstract base class for arbitrary-dimensional matrices holding objects or primitive data types such as int, float, etc. First see the package summary and javadoc tree view to get the broad picture.

Note that this implementation is not synchronized.

Version:

1.0, 09/24/99

Author:

wolfgang.hoschek@cern.ch

See Also:

Serialized Form

Field Summary

Fields

Modifier and Type	Field and Description
protected boolean	isNoView

Fields inherited from class cern.colt.PersistentObject

serialVersionUID

Constructor Summary

Constructors

Modifier	Constructor and Description
protected	AbstractMatrix() Makes this class non instantiable, but still let's others inherit from it.

Method Summary

Methods

Modifier and Type	Method and Description
void	ensureCapacity(int minNonZeros) Ensures that the receiver can hold at least the specified number of non-zero (non-null) cells without needing to allocate new internal memory.
protected boolean	isView() Returns whether the receiver is a view or not.
abstract int	size() Returns the number of cells.
void	trimToSize() Releases any superfluous internal memory.

Methods inherited from class cern.colt.PersistentObject

clone

Methods inherited from class java.lang.Object

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

Field Detail

isNoView

protected boolean isNoView

Constructor Detail

AbstractMatrix

protected AbstractMatrix()

Makes this class non instantiable, but still let's others inherit from it.

Method Detail

ensureCapacity

public void ensureCapacity(int minNonZeros)

Ensures that the receiver can hold at least the specified number of non-zero (non-null) cells without needing to allocate new internal memory. If necessary, allocates new internal memory and increases the capacity of the receiver.

This default implementation does nothing. Override this method if necessary.

Parameters:

minNonZeros - the desired minimum number of non-zero (non-null) cells.

isView

protected boolean isView()

Returns whether the receiver is a view or not.

size

public abstract int size()

Returns the number of cells.

trimToSize

public void trimToSize()

Releases any superfluous internal memory. An application can use this operation to minimize the storage of the receiver.

This default implementation does nothing. Override this method if necessary.