se.entitymanager.logic.file
Class FileLogicFacade

java.lang.Object
  se.entitymanager.logic.file.FileLogicFacade

All Implemented Interfaces:

LogicFacade

public class FileLogicFacade
extends java.lang.Object
implements LogicFacade

A LogicFacade that provides an interface to file systems.

Field Summary

private EntityInterface	clipboardEntity The entity of the file to be copied or cutted (to the clipboard).
private boolean	deleteAfterPaste The entity of the file to be copied or cutted (to the clipboard).
private java.util.List	entityChangedListeners List of listeners for changed entities.
private static FileLogicFacade	facade Static instance.

Constructor Summary

private

FileLogicFacade() Änderung: auskommentiert ***

Method Summary

void	addEntityChangeListener(EntityChangedListener listener) Adds listener for changed entites.
void	copy(EntityInterface entity) Copies an entity.
void	delete(EntityInterface entity) Deletes an entity.
java.util.Collection	getAllChildren(EntityInterface entity) Returns sub-entities of folderish entity.
EntityInterface	getClipboardEntity() Returns entity to be pasted.
java.io.File	getClipboardFile()
java.util.Comparator	getComparator() Returns a comparator for entity interfaces.
boolean	getDeleteAfterPaste()
java.lang.String	getEntityLastModified(EntityInterface entity) Returns date of last modification of entity.
java.lang.String	getEntityName(EntityInterface entity) Returns name of entity.
java.lang.String	getEntitySize(EntityInterface entity) Returns size of entity.
static FileLogicFacade	getInstance() Returns the instance of class FileLogicFacade.
EntityInterface	getRootEntity() Returns root entity.
boolean	isEntityReadable(EntityInterface entity) Returns if file is readable.
boolean	isEntityWriteable(EntityInterface entity) Returns if file is writable.
boolean	isFolderish(EntityInterface entity) Returns whether entity is folderish.
private void	notifyChangedEntity(EntityInterface entity) Notifies all listeners for changed entities about a changed entity.
void	paste(EntityInterface destinationEntity) Pastes to an entity.
void	removeEntityChangeListener(EntityChangedListener listener) Removes listener for changed entities.
void	rename(EntityInterface entity, java.lang.String newName) Renames an entity.
void	setDeleteAfterPaste(boolean shouldBeDeleted)

Methods inherited from class java.lang.Object

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

Field Detail

facade

private static FileLogicFacade facade

Static instance.

See Also:

getInstance()

entityChangedListeners

private java.util.List entityChangedListeners

List of listeners for changed entities.

clipboardEntity

private EntityInterface clipboardEntity

The entity of the file to be copied or cutted (to the clipboard).

deleteAfterPaste

private boolean deleteAfterPaste

The entity of the file to be copied or cutted (to the clipboard).

Constructor Detail

FileLogicFacade

private FileLogicFacade()

Änderung: auskommentiert ***

See Also:

getInstance()

Method Detail

getInstance

public static FileLogicFacade getInstance()

Returns the instance of class FileLogicFacade.

getRootEntity

public EntityInterface getRootEntity()

Description copied from interface: LogicFacade

Returns root entity.

All entities must be within a tree like hierarchy. This method returns the root of this hierarchy.

Specified by:

getRootEntity in interface LogicFacade

Returns:

root entity

getClipboardFile

public java.io.File getClipboardFile()

getEntityName

public java.lang.String getEntityName(EntityInterface entity)

Description copied from interface: LogicFacade

Returns name of entity.

All entities must have name. This method returns the name of the given entity.

Specified by:

getEntityName in interface LogicFacade

Parameters:

entity - the entity

Returns:

name of entity

getEntitySize

public java.lang.String getEntitySize(EntityInterface entity)

Description copied from interface: LogicFacade

Returns size of entity.

All entities must have size. This method returns the size of the given entity.

Specified by:

getEntitySize in interface LogicFacade

Parameters:

entity - the entity

Returns:

size of entity

getEntityLastModified

public java.lang.String getEntityLastModified(EntityInterface entity)

Description copied from interface: LogicFacade

Returns date of last modification of entity.

All entities must have date of last modification. This method returns the date of last modification of the given entity.

Specified by:

getEntityLastModified in interface LogicFacade

Parameters:

entity - the entity

Returns:

date of last modification of entity

isEntityReadable

public boolean isEntityReadable(EntityInterface entity)

Description copied from interface: LogicFacade

Returns if file is readable.

Specified by:

isEntityReadable in interface LogicFacade

Parameters:

entity - the entity

Returns:

true if file associated with entity is redable

isEntityWriteable

public boolean isEntityWriteable(EntityInterface entity)

Description copied from interface: LogicFacade

Returns if file is writable.

Specified by:

isEntityWriteable in interface LogicFacade

Parameters:

entity - the entity

Returns:

true if file associated with entity is writable

isFolderish

public boolean isFolderish(EntityInterface entity)

Description copied from interface: LogicFacade

Returns whether entity is folderish.

Folderish entities may contain other entities. These may be accessed with method getAllChildren.

Specified by:

isFolderish in interface LogicFacade

Parameters:

entity - the entity

Returns:

true if entity is folderish, false otherwise

See Also:

LogicFacade.getAllChildren(EntityInterface)

getAllChildren

public java.util.Collection getAllChildren(EntityInterface entity)
                                    throws EntityNotFolderishException

Description copied from interface: LogicFacade

Returns sub-entities of folderish entity.

Specified by:

getAllChildren in interface LogicFacade

Parameters:

entity - the entity

Returns:

sub-entities

Throws:

EntityNotFolderishException

rename

public void rename(EntityInterface entity,
                   java.lang.String newName)
            throws EntityRenameFailedException

Description copied from interface: LogicFacade

Renames an entity.

Specified by:

rename in interface LogicFacade

Parameters:

entity - the entity

newName - new name for the entity

Throws:

EntityRenameFailedException - if an error occured

delete

public void delete(EntityInterface entity)
            throws EntityDeletionFailedException

Description copied from interface: LogicFacade

Deletes an entity.

Specified by:

delete in interface LogicFacade

Parameters:

entity - the entity

Throws:

EntityDeletionFailedException - if an error occured

setDeleteAfterPaste

public void setDeleteAfterPaste(boolean shouldBeDeleted)

Specified by:

setDeleteAfterPaste in interface LogicFacade

getDeleteAfterPaste

public boolean getDeleteAfterPaste()

Specified by:

getDeleteAfterPaste in interface LogicFacade

copy

public void copy(EntityInterface entity)
          throws EntityCopyCutFailedException

Description copied from interface: LogicFacade

Copies an entity.

Specified by:

copy in interface LogicFacade

Parameters:

entity - the entity

Throws:

EntityCopyCutFailedException - if an error occured

getClipboardEntity

public EntityInterface getClipboardEntity()

Description copied from interface: LogicFacade

Returns entity to be pasted.

Specified by:

getClipboardEntity in interface LogicFacade

Returns:

name of entity to be pasted

paste

public void paste(EntityInterface destinationEntity)
           throws EntityPasteFailedException

Description copied from interface: LogicFacade

Pastes to an entity.

Specified by:

paste in interface LogicFacade

Throws:

EntityPasteFailedException - if an error occured

getComparator

public java.util.Comparator getComparator()

Description copied from interface: LogicFacade

Returns a comparator for entity interfaces. The sort criteria depends on implementation.

Specified by:

getComparator in interface LogicFacade

Returns:

comparator for entity interfaces

addEntityChangeListener

public void addEntityChangeListener(EntityChangedListener listener)

Description copied from interface: LogicFacade

Adds listener for changed entites.

Specified by:

addEntityChangeListener in interface LogicFacade

Parameters:

listener - the listener to add

See Also:

LogicFacade.addEntityChangeListener(se.entitymanager.logic.EntityChangedListener)

removeEntityChangeListener

public void removeEntityChangeListener(EntityChangedListener listener)

Description copied from interface: LogicFacade

Removes listener for changed entities.

Specified by:

removeEntityChangeListener in interface LogicFacade

Parameters:

listener - the listener to remove

See Also:

LogicFacade.removeEntityChangeListener(se.entitymanager.logic.EntityChangedListener)

notifyChangedEntity

private void notifyChangedEntity(EntityInterface entity)

Notifies all listeners for changed entities about a changed entity.

Parameters:

entity - the entity that has changed