data.ooimpl
Class CountingStockImpl

java.lang.Object
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  +--data.AbstractNameable
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        +--data.ooimpl.StockItemImpl
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              +--data.ooimpl.StockImpl
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                    +--data.ooimpl.CountingStockImpl

Direct Known Subclasses:

MoneyBagImpl

public class CountingStockImpl

extends StockImpl

implements CountingStock

Pure Java implementation of the CountingStock interface.

Since:

v2.0

Version:

2.0 19/08/1999

Author:

Steffen Zschaler

See Also:

Serialized Form

Field Summary

protected CatalogChangeListener

m_cclReferentialIntegrityListener Listens for the Catalog to ensure referential integrity.

Fields inherited from class data.ooimpl.StockImpl

m_cclEditListener, m_ciCatalog, m_cinlCatalogItemNameListener, m_dbCatalogValidator, m_lhListeners, m_sclEditCreatorListener

Fields inherited from class data.AbstractNameable

m_ncContext, m_pcsPropertyListeners

Constructor Summary

CountingStockImpl(String sName, CatalogImpl ciRef)
Create a new, initially empty CountingStockImpl.

Method Summary

void	add(StockItem si, DataBasket db) Add an item to the Stock.
void	add(String sKey, int nCount, DataBasket db) Add a number of items of a given key to the Stock.
void	addStock(Stock st, DataBasket db, boolean fRemove) Overridden for efficiency reasons.
void	commitAdd(DataBasket db, DataBasketEntry dbe) Commit the adding of StockItems.
void	commitRemove(DataBasket db, DataBasketEntry dbe) Commit the removal of StockItems.
boolean	contains(StockItem si, DataBasket db) Check whether the Stock contains the given StockItem.
boolean	containsStock(Stock st, DataBasket db) Reimplemented for efficiency reasons.
int	countItems(String sKey, DataBasket db) Count the StockItems with a given key that are visible using a given DataBasket.
protected StockImpl	createPeer()
Iterator	get(String sKey, DataBasket db, boolean fForEdit) Iterate all items with a given key.
protected void	internalSetCatalog(CatalogImpl ciRef) Overridden to ensure referential integrity.
StockItem	remove(StockItem si, DataBasket db) Remove the given StockItem from the Stock.
StockItem	remove(String sKey, DataBasket db) Remove one StockItem with the specified key from the Stock.
void	remove(String sKey, int nCount, DataBasket db) Remove a number of items of a given key from the Stock.
void	rollbackAdd(DataBasket db, DataBasketEntry dbe) Rollback the adding of StockItems.
void	rollbackRemove(DataBasket db, DataBasketEntry dbe) Rollback the removal of StockItems.
String	toString() Get a String representation of the Stock.

Methods inherited from class data.ooimpl.StockImpl

addStockChangeListener, checkNameChange, clone, compareTo, contains, fillShallowClone, fillStockWithValue, fireCanEditStockItems, fireCanRemoveStockItems, fireEditingStockItems, fireStockItemsAddCommit, fireStockItemsAdded, fireStockItemsAddRollback, fireStockItemsEditCommit, fireStockItemsEditRollback, fireStockItemsRemoveCommit, fireStockItemsRemoved, fireStockItemsRemoveRollback, getCatalog, getEditingItemsContainer, getItemsContainer, getItemsLock, getNCMonitor, getRefIntegrEditContainer, getRefIntegrItemsContainer, getShallowClone, getTemporaryAddedItemsContainer, getTemporaryRemovedItemsContainer, iterator, keySet, nameHasChanged, prepareReferentialIntegrity, removeStockChangeListener, setEditingItemsContainer, setItemsContainer, setRefIntegrEditContainer, setRefIntegrItemsContainer, setStock, setTemporaryAddedItemsContainer, setTemporaryRemovedItemsContainer, size, sumStock

Methods inherited from class data.ooimpl.StockItemImpl

equals, getAssociatedItem, getStock

Methods inherited from class data.AbstractNameable

addNameListener, addPropertyChangeListener, attach, detachNC, getName, removeNameListener, removePropertyChangeListener, setName

Methods inherited from class java.lang.Object

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

Field Detail

m_cclReferentialIntegrityListener

protected CatalogChangeListener m_cclReferentialIntegrityListener

Listens for the Catalog to ensure referential integrity.

Constructor Detail

CountingStockImpl

public CountingStockImpl(String sName,
                         CatalogImpl ciRef)

Create a new, initially empty CountingStockImpl.

Parameters:

sName - the name of the Stock.

ciRef - the Catalog referenced by the Stock.

Method Detail

internalSetCatalog

protected void internalSetCatalog(CatalogImpl ciRef)

Overridden to ensure referential integrity.

Override:

Never.

Overrides:

internalSetCatalog in class StockImpl

add

public void add(StockItem si,
                DataBasket db)

Add an item to the Stock.

The item will only be visible to users of the same DataBasket. Only after a DataBasket.commit() was performed on the DataBasket, the item will become visible to other users.

A addedStockItems event will be fired.

Override:

Never.

Parameters:

si - the item to be added.

db - the DataBasket relative to which the item will be added. Must be either null or a descendant of DataBasketImpl.

Throws:

CatalogConflictException - if the items key is not contained in the corresponding Catalog.

DataBasketConflictException - if the item has already been added/removed using another DataBasket.

addStock

public void addStock(Stock st,
                     DataBasket db,
                     boolean fRemove)

Overridden for efficiency reasons.

Override:

Never.

Overrides:

addStock in class StockImpl

get

public Iterator get(String sKey,
                    DataBasket db,
                    boolean fForEdit)

Iterate all items with a given key.

This method, together with StockImpl.iterator(data.DataBasket, boolean) is the only way of accessing the individual StockItems contained in a Stock. The iterator will deliver all items that have the specified key and are visible using the given DataBasket. Depending on the fForEdit parameter, the items will be retrieved in different ways. See DataBasket for an explanation of the different possibilities.

canEditStockItems and editingStockItems events will be fired if fForEdit == true. VetoExceptions will be converted into UnSupportedOperationExceptions.

Override:

Never.

Parameters:

sKey - the key for which to retrieve the StockItems.

db - the DataBasket relative to which to retrieve the StockItems. Must be either null or a decendant of DataBasketImpl.

fForEdit - if true, the StockItems will be retrieved for editing.

countItems

public int countItems(String sKey,
                      DataBasket db)

Count the StockItems with a given key that are visible using a given DataBasket.

Override:

Never.

Parameters:

sKey - the key for which to count the StockItems.

db - the DataBasket that is used to determine visibility. Must be either null or a descendant of DataBasketImpl.

contains

public boolean contains(StockItem si,
                        DataBasket db)

Check whether the Stock contains the given StockItem.

Return true if the Stock contains a StockItem that is equal to the given one.

Override:

Never.

Parameters:

si - the StockItem for which to check containment.

db - the DataBasket used to check visibility. Must be either null or a descendant of DataBasketImpl.

Overrides:

contains in class StockImpl

containsStock

public boolean containsStock(Stock st,
                             DataBasket db)

Reimplemented for efficiency reasons.

Override:

Never.

Overrides:

containsStock in class StockImpl

remove

public StockItem remove(String sKey,
                        DataBasket db)
                 throws VetoException

Remove one StockItem with the specified key from the Stock.

If there are any StockItems with the specified key, one will be removed. There is no guarantee as to which StockItem will be removed. The removed item, if any, will be returned.

canRemoveStockItems and removedStockItems events will be fired.

Override:

Never.

Parameters:

sKey - the key for which to remove an item.

db - the DataBasket relative to which to remove the item. Must be either null or a descendant of DataBasketImpl.

Returns:

the removed item

Throws:

VetoException - if a listener vetoed the removal.

DataBasketConflictException - if the item cannot be removed due to conflicts from DataBasket usage.

remove

public StockItem remove(StockItem si,
                        DataBasket db)
                 throws VetoException

Remove the given StockItem from the Stock.

If the given StockItem is contained in the Stock, it will be removed. The removed item, if any, will be returned.

canRemoveStockItems and removedStockItems events will be fired.

Override:

Never.

Parameters:

si - the StockItem to be removed.

db - the DataBasket relative to which to remove the item. Must be either null or a descendant of DataBasketImpl.

Returns:

the removed item

Throws:

VetoException - if a listener vetoed the removal.

DataBasketConflictException - if the item cannot be removed due to conflicts from DataBasket usage.

createPeer

protected StockImpl createPeer()

Override:

Always.

Overrides:

createPeer in class StockImpl

add

public void add(String sKey,
                int nCount,
                DataBasket db)

Add a number of items of a given key to the Stock.

As with any Stock the added items will not at once be visible to users of other DataBaskets.

In general the method behaves as though it would call Stock.add(data.StockItem, data.DataBasket) nCount times. Especially, the same exceptions might occur and the same constraints hold.

Override:

Never.

Specified by:

add in interface CountingStock

Parameters:

sKey - the key for which to add a number of items.

nCount - how many items are to be added?

db - the DataBasket relative to which the adding is performed. Must be either null or a descendant of DataBasketImpl.

Throws:

IllegalArgumentException - if nCount <= 0.

CatalogConflictException - if the key cannot be found in the Catalog.

remove

public void remove(String sKey,
                   int nCount,
                   DataBasket db)
            throws VetoException

Remove a number of items of a given key from the Stock.

In general the method behaves as though it would call Stock.remove(java.lang.String, data.DataBasket) nCount times. Especially, the same exceptions might occur and the same constraints hold.

Override:

Never.

Specified by:

remove in interface CountingStock

Parameters:

sKey - the key for which to remove a number of items.

nCount - how many items are to be removed?

db - the DataBasket relative to which the removal is performed. Must be either null or a descendant of DataBasketImpl.

Throws:

VetoException - if a listener vetos the removal.

NotEnoughElementsException - if there are not enough elements to fulfill the request. If this exception is thrown no items will have been removed.

IllegalArgumentException - if nCount <= 0

toString

public String toString()

Get a String representation of the Stock.

Override:

Sometimes.

Overrides:

toString in class StockItemImpl

commitRemove

public void commitRemove(DataBasket db,
                         DataBasketEntry dbe)

Commit the removal of StockItems.

A commitRemoveStockItems will be fired.

Override:

Never.

rollbackRemove

public void rollbackRemove(DataBasket db,
                           DataBasketEntry dbe)

Rollback the removal of StockItems.

A rollbackRemoveStockItems will be fired. Also, the Stock will try to make sure, that a corresponding CatalogItem exists.

Override:

Never.

commitAdd

public void commitAdd(DataBasket db,
                      DataBasketEntry dbe)

Commit the adding of StockItems.

A commitAddStockItems will be fired. A commitEditStockItems event may be fired as a consequence of this method. Also, the Stock will try to make sure, that a corresponding CatalogItem exists.

Override:

Never.

rollbackAdd

public void rollbackAdd(DataBasket db,
                        DataBasketEntry dbe)

Rollback the adding of StockItems.

A commitAddStockItems will be fired. A commitEditStockItems event may be fired as a consequence of this method.

Override:

Never.