cern.colt.list

Class AbstractCollection

java.lang.Object

cern.colt.PersistentObject

cern.colt.list.AbstractCollection

All Implemented Interfaces:

Serializable, Cloneable

Direct Known Subclasses:

AbstractList

public abstract class AbstractCollection
extends PersistentObject

Abstract base class for resizable collections 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:

ArrayList, Vector, Arrays, Serialized Form

Constructor Summary

Constructors

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

Method Summary

Modifier and Type	Method and Description
abstract void	clear() Removes all elements from the receiver.
boolean	isEmpty() Tests if the receiver has no elements.
abstract int	size() Returns the number of elements contained in the receiver.
abstract ArrayList	toList() Returns a java.util.ArrayList containing all the elements in the receiver.
String	toString() Returns a string representation of the receiver, containing the String representation of each element.

Methods inherited from class cern.colt.PersistentObject

clone

Methods inherited from class java.lang.Object

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

Constructor Detail

AbstractCollection

protected AbstractCollection()

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

Method Detail

clear

public abstract void clear()

Removes all elements from the receiver. The receiver will be empty after this call returns.

isEmpty

public boolean isEmpty()

Tests if the receiver has no elements.

Returns:

true if the receiver has no elements; false otherwise.

size

public abstract int size()

Returns the number of elements contained in the receiver.

Returns:

the number of elements contained in the receiver.

toList

public abstract ArrayList toList()

Returns a java.util.ArrayList containing all the elements in the receiver.

toString

public String toString()

Returns a string representation of the receiver, containing the String representation of each element.

Overrides:

toString in class Object