com.sun.xml.bind.util

Class ProxyListImpl<T>

java.lang.Object

com.sun.xml.bind.util.ProxyListImpl<T>

All Implemented Interfaces:

Serializable, Iterable<T>, Collection<T>, List<T>

Direct Known Subclasses:

ListImpl

public abstract class ProxyListImpl<T>
extends Object
implements List<T>, Serializable

List with modification detection capability.

This wrapper class exposes two additional methods setModified and isModified to check whether the contents of a list is modified.

I originally thought the modCount field of AbstractList is suffice to implement this capability, but a close look at the source code reveals that modCount is not updated when value is modified without a structural change. This includes modifying a value of a list, for example.

Thus unfortunately we need to trap the calls to all the mutation methods of List.

Note that Iterator implementation of AbstractList modifies list directly without using a public method of List. Thus we also need to wrap Iterators.

Since:

JAXB1.0

Author:

Kohsuke Kawaguchi (kohsuke.kawaguchi@sun.com)

See Also:

Serialized Form

Field Summary

Fields

Modifier and Type	Field and Description
protected List<T>	core The actual storage.

Constructor Summary

Constructors

Constructor and Description
ProxyListImpl()
ProxyListImpl(List<T> c)

Method Summary

Methods

Modifier and Type	Method and Description
void	add(int index, T element)
boolean	add(T o)
boolean	addAll(Collection<? extends T> c)
boolean	addAll(int index, Collection<? extends T> c)
void	clear()
boolean	contains(Object o)
boolean	containsAll(Collection<?> c)
boolean	equals(Object o)
T	get(int index)
int	hashCode()
int	indexOf(Object o)
boolean	isEmpty()
Iterator<T>	iterator()
int	lastIndexOf(Object o)
ListIterator<T>	listIterator()
ListIterator<T>	listIterator(int index)
T	remove(int index)
boolean	remove(Object o)
boolean	removeAll(Collection<?> c)
boolean	retainAll(Collection<?> c)
T	set(int index, T element)
abstract void	setModified(boolean f)
int	size()
List<T>	subList(int fromIndex, int toIndex)
Object[]	toArray()
<T> T[]	toArray(T[] a)

Methods inherited from class java.lang.Object

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

Field Detail

core

protected final List<T> core

The actual storage.

Constructor Detail

ProxyListImpl

public ProxyListImpl()

ProxyListImpl

public ProxyListImpl(List<T> c)

Method Detail

setModified

public abstract void setModified(boolean f)

add

public void add(int index,
       T element)

Specified by:

add in interface List<T>

add

public boolean add(T o)

Specified by:

add in interface Collection<T>

Specified by:

add in interface List<T>

addAll

public boolean addAll(Collection<? extends T> c)

Specified by:

addAll in interface Collection<T>

Specified by:

addAll in interface List<T>

addAll

public boolean addAll(int index,
             Collection<? extends T> c)

Specified by:

addAll in interface List<T>

set

public T set(int index,
    T element)

Specified by:

set in interface List<T>

clear

public void clear()

Specified by:

clear in interface Collection<T>

Specified by:

clear in interface List<T>

remove

public T remove(int index)

Specified by:

remove in interface List<T>

remove

public boolean remove(Object o)

Specified by:

remove in interface Collection<T>

Specified by:

remove in interface List<T>

iterator

public Iterator<T> iterator()

Specified by:

iterator in interface Iterable<T>

Specified by:

iterator in interface Collection<T>

Specified by:

iterator in interface List<T>

listIterator

public ListIterator<T> listIterator(int index)

Specified by:

listIterator in interface List<T>

listIterator

public ListIterator<T> listIterator()

Specified by:

listIterator in interface List<T>

removeAll

public boolean removeAll(Collection<?> c)

Specified by:

removeAll in interface Collection<T>

Specified by:

removeAll in interface List<T>

retainAll

public boolean retainAll(Collection<?> c)

Specified by:

retainAll in interface Collection<T>

Specified by:

retainAll in interface List<T>

contains

public boolean contains(Object o)

Specified by:

contains in interface Collection<T>

Specified by:

contains in interface List<T>

containsAll

public boolean containsAll(Collection<?> c)

Specified by:

containsAll in interface Collection<T>

Specified by:

containsAll in interface List<T>

get

public T get(int index)

Specified by:

get in interface List<T>

indexOf

public int indexOf(Object o)

Specified by:

indexOf in interface List<T>

isEmpty

public boolean isEmpty()

Specified by:

isEmpty in interface Collection<T>

Specified by:

isEmpty in interface List<T>

lastIndexOf

public int lastIndexOf(Object o)

Specified by:

lastIndexOf in interface List<T>

size

public int size()

Specified by:

size in interface Collection<T>

Specified by:

size in interface List<T>

subList

public List<T> subList(int fromIndex,
              int toIndex)

Specified by:

subList in interface List<T>

toArray

public Object[] toArray()

Specified by:

toArray in interface Collection<T>

Specified by:

toArray in interface List<T>

toArray

public <T> T[] toArray(T[] a)

Specified by:

toArray in interface Collection<T>

Specified by:

toArray in interface List<T>

equals

public boolean equals(Object o)

Specified by:

equals in interface Collection<T>

Specified by:

equals in interface List<T>

Overrides:

equals in class Object

hashCode

public int hashCode()

Specified by:

hashCode in interface Collection<T>

Specified by:

hashCode in interface List<T>

Overrides:

hashCode in class Object