com.zfqjava.swing
Interface HistoryModel

All Known Implementing Classes:

DefaultHistoryModel

public interface HistoryModel

Method Summary

void	add(Object o) Adds a item to this model.
void	addChangeListener(ChangeListener l) Adds the listener.
Object	current() Returns current object.
Object	get(int index) Returns the item at the specified index.
int	getIndex() Returns the index of current item.
boolean	hasNext() Determines the model has next item.
boolean	hasPrevious() Determines the model has previous item.
boolean	isEmpty() Determines the model is empty.
void	removeChangeListener(ChangeListener l) Removes the listener.
void	setIndex(int index) Sets the current index to the specifed index.
int	size() Returns the size of this model.

Method Detail

current

Object current()
               throws NoSuchElementException

Returns current object.

Returns:

the current object

Throws:

NoSuchElementException

isEmpty

boolean isEmpty()

Determines the model is empty.

Returns:

true if the model is empty

hasNext

boolean hasNext()

Determines the model has next item.

Returns:

true if the model has next item

hasPrevious

boolean hasPrevious()

Determines the model has previous item.

Returns:

true if the model has previouse item

size

int size()

Returns the size of this model.

Returns:

the size

get

Object get(int index)
           throws IndexOutOfBoundsException

Returns the item at the specified index.

Parameters:

index - the index

Throws:

IndexOutOfBoundsException

add

void add(Object o)

Adds a item to this model. If the model contains such object, set the index to that object index. All next items will remove from this model and the o will become current item.

Parameters:

add - a item

getIndex

int getIndex()

Returns the index of current item.

Returns:

the index.

See Also:

setIndex(int)

setIndex

void setIndex(int index)
              throws IndexOutOfBoundsException

Sets the current index to the specifed index.

Parameters:

index - the index

Throws:

IndexOutOfBoundsException

See Also:

getIndex()

addChangeListener

void addChangeListener(ChangeListener l)

Adds the listener.

Parameters:

l - the listener

removeChangeListener

void removeChangeListener(ChangeListener l)

Removes the listener.

Parameters:

l - the listener