org.strutsme.wishlist.persistence.facade
Class AbstractWishlistPersistenceFacade

java.lang.Object
  org.strutsme.wishlist.persistence.facade.AbstractWishlistPersistenceFacade

All Implemented Interfaces:

WishlistPersistenceFacade

Direct Known Subclasses:

WishlistPersistenceFacadeFake, WishlistPersistenceFacadeFile

public abstract class AbstractWishlistPersistenceFacade
extends java.lang.Object
implements WishlistPersistenceFacade

Field Summary

protected int	count Counter for create wishes.
protected java.util.Map	users Map of users.
protected java.util.Map	wishes Map of wishes.

Constructor Summary

AbstractWishlistPersistenceFacade()
The constructor also loads the data or initilized it with some dummy data.

Method Summary

protected void	addDummyWishes() Add a certain amount of distinct dummy wishes.
WishDto	createWish() Creates a new wish.
void	deleteWish(java.lang.String wishId) Deletes an wish with this id.
protected UserDto	getDefaultUser() Gets the default user.
UserDto	getUserById(java.lang.String userId) Returns the user with this id.
UserDto	getUserByName(java.lang.String userName) Returns a user with this name.
WishDto	getWishById(java.lang.String wishId) Returns the wish with this id.
java.util.List	getWishes() Returns all wishes.
protected abstract void	load() Should load the data and update the instance variables.
java.lang.String	saveWish(WishDto wish) Saves an wish.
protected abstract void	stateChanged() Called if the state changed.

Methods inherited from class java.lang.Object

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

Field Detail

count

protected int count

Counter for create wishes.

wishes

protected java.util.Map wishes

Map of wishes.

users

protected java.util.Map users

Map of users.

Constructor Detail

AbstractWishlistPersistenceFacade

public AbstractWishlistPersistenceFacade()
                                  throws java.io.IOException,
                                         java.lang.ClassNotFoundException

The constructor also loads the data or initilized it with some dummy data.

Throws:

java.lang.ClassNotFoundException - if the wishes couldn't be loaded

java.io.IOException - if the wishes couldn't be loaded

Method Detail

load

protected abstract void load()
                      throws java.io.IOException,
                             java.lang.ClassNotFoundException

Should load the data and update the instance variables.

Throws:

java.io.IOException - if the wishes couldn't be loaded

java.lang.ClassNotFoundException - if the wishes couldn't be loaded

getUserById

public final UserDto getUserById(java.lang.String userId)

Returns the user with this id.

Specified by:

getUserById in interface WishlistPersistenceFacade

Parameters:

userId - the id of user.

Returns:

a userDTO.

getUserByName

public final UserDto getUserByName(java.lang.String userName)

Returns a user with this name.

Specified by:

getUserByName in interface WishlistPersistenceFacade

Parameters:

userName - the name of user

Returns:

a userDTO

createWish

public final WishDto createWish()

Creates a new wish.

Specified by:

createWish in interface WishlistPersistenceFacade

Returns:

an wish

saveWish

public final java.lang.String saveWish(WishDto wish)
                                throws java.io.IOException

Saves an wish.

Specified by:

saveWish in interface WishlistPersistenceFacade

Parameters:

wish - the wish to save.

Returns:

the id of the saved wish.

Throws:

java.io.IOException - if the wish can't be saved.

stateChanged

protected abstract void stateChanged()
                              throws java.io.IOException

Called if the state changed. Can be used to save it.

Throws:

java.io.IOException - if for example the saving failed.

getWishById

public final WishDto getWishById(java.lang.String wishId)
                          throws java.io.IOException

Returns the wish with this id.

Specified by:

getWishById in interface WishlistPersistenceFacade

Parameters:

wishId - the id of the wish.

Returns:

an wishDto

Throws:

java.io.IOException - if the wish can't be accessed.

getWishes

public final java.util.List getWishes()
                               throws java.io.IOException

Returns all wishes.

Specified by:

getWishes in interface WishlistPersistenceFacade

Returns:

a list of wishes.

Throws:

java.io.IOException - if the wishes couldn't be loaded.

deleteWish

public final void deleteWish(java.lang.String wishId)
                      throws java.io.IOException

Deletes an wish with this id.

Specified by:

deleteWish in interface WishlistPersistenceFacade

Parameters:

wishId - the id of the wish to delete.

Throws:

java.io.IOException - if the wish can't be deleted.

getDefaultUser

protected final UserDto getDefaultUser()

Gets the default user. todo: Replace this method with a real user management.

Returns:

the default user.

addDummyWishes

protected final void addDummyWishes()
                             throws java.io.IOException

Add a certain amount of distinct dummy wishes.

Throws:

java.io.IOException - if the wishes couldn't be saved.