net.sf.basedb.core
Class News

java.lang.Object
  net.sf.basedb.core.BasicItem<NewsData>
      net.sf.basedb.core.News

All Implemented Interfaces:

AccessControlled, Controlled, Identifiable, Nameable, Registered, Removable, Validatable

public class News
extends BasicItem<NewsData>
implements Nameable, Removable, Validatable, Registered

This class represents news items.

Version:

2.0

Author:

Nicklas

Last modified

$Date: 2009-04-06 14:52:39 +0200 (Mon, 06 Apr 2009) $

Nested Class Summary

private static class

News.QueryRuntimeFilterImpl

Field Summary

private static QueryRuntimeFilter	RUNTIME_FILTER This filter limits the returned news items to those where todays date falls between the start and end dates unless the logged in user has generic read permission.
static Item	TYPE The type of item represented by this class.

Fields inherited from interface net.sf.basedb.core.Nameable

MAX_DESCRIPTION_LENGTH, MAX_NAME_LENGTH

Constructor Summary

News(NewsData newsData)

Method Summary

static News	getById(DbControl dc, int id) Get a News item when you know the ID.
String	getDescription() Get the description for the item.
Date	getEndDate() Get the end date and time for this news item to be published.
Date	getEntryDate() Get the date that the item was registered in the database.
String	getName() Get the name of the item.
static News	getNew(DbControl dc, Date startDate, Date newsDate) Create a new News item.
Date	getNewsDate() Get the date that is shown in listings.
static ItemQuery<News>	getQuery() Get a query configured to retrieve news.
Date	getStartDate() Get the start date and time for this news item to be published.
Item	getType() Get the type of item represented by the object.
(package private) void	initPermissions(int granted, int denied) Read permission is granted if today is between the start and end date.
boolean	isRemoved() Check if the removed flag is set for this item.
void	setDescription(String description) Set the description for the item.
void	setEndDate(Date endDate) Set the end date and time for this item to be published.
void	setName(String name) Set the name of the item.
void	setNewsDate(Date newsDate) Set the date that is shown in listings.
void	setRemoved(boolean removed) Set the removed flag for this item.
void	setStartDate(Date startDate) Set the start date and time for this item to be published.
(package private) void	validate() Check that startDate is before newsDate is before endDate.

Methods inherited from class net.sf.basedb.core.BasicItem

addUsingItems, addUsingItems, checkPermission, equals, getData, getDbControl, getId, getPermissions, getPluginPermissions, getSessionControl, getUsingItems, getVersion, hashCode, hasPermission, isDetached, isInDatabase, isUsed, onAfterCommit, onAfterInsert, onBeforeCommit, onRollback, setDbControl, setProjectDefaults, toString, toTransferable

Methods inherited from class java.lang.Object

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

Methods inherited from interface net.sf.basedb.core.Identifiable

getId, getVersion

Methods inherited from interface net.sf.basedb.core.AccessControlled

checkPermission, getPermissions, hasPermission

Field Detail

TYPE

public static final Item TYPE

The type of item represented by this class.

See Also:

Item.NEWS, getType()

RUNTIME_FILTER

private static final QueryRuntimeFilter RUNTIME_FILTER

This filter limits the returned news items to those where todays date falls between the start and end dates unless the logged in user has generic read permission.

Constructor Detail

News

News(NewsData newsData)

Method Detail

getNew

public static News getNew(DbControl dc,
                          Date startDate,
                          Date newsDate)
                   throws BaseException

Create a new News item.

Parameters:

dc - The DbControl which will be used for permission checking and database access

startDate - The first day this news item should be shown

newsDate - The date appearing in listings of news

Returns:

The new News item

Throws:

BaseException - If there is an error

getById

public static News getById(DbControl dc,
                           int id)
                    throws ItemNotFoundException,
                           PermissionDeniedException,
                           BaseException

Get a News item when you know the ID.

Parameters:

dc - The DbControl which will be used for permission checking and database access.

id - The ID of the item to load

Returns:

The News item

Throws:

ItemNotFoundException - If an item with the specified ID is not found

PermissionDeniedException - If the logged in user doesn't have Permission.READ permission to the item

BaseException - If there is another error

getQuery

public static ItemQuery<News> getQuery()

Get a query configured to retrieve news. If the logged in user doesn't have generic permission to all news, or if no user is logged in, only news which have a start date before today and an end date after today are returned.

Returns:

An ItemQuery object

getType

public Item getType()

Description copied from interface: Identifiable

Get the type of item represented by the object. The returned value is one of the values defined in the Item enumeration.

Specified by:

getType in interface Identifiable

Returns:

A value indicating the type of item

getName

public String getName()

Description copied from interface: Nameable

Get the name of the item.

Specified by:

getName in interface Nameable

Returns:

A String with the name of the item

setName

public void setName(String name)
             throws PermissionDeniedException,
                    InvalidDataException

Description copied from interface: Nameable

Set the name of the item. The name cannot be null and mustn't be longer than the value specified by the Nameable.MAX_NAME_LENGTH constant.

Specified by:

setName in interface Nameable

Parameters:

name - The new name for the item

Throws:

PermissionDeniedException - If the logged in user doesn't have write permission

InvalidDataException - If the name is null or longer than specified by the Nameable.MAX_NAME_LENGTH constant

getDescription

public String getDescription()

Description copied from interface: Nameable

Get the description for the item.

Specified by:

getDescription in interface Nameable

Returns:

A String with a description of the item

setDescription

public void setDescription(String description)
                    throws PermissionDeniedException,
                           InvalidDataException

Description copied from interface: Nameable

Set the description for the item. The description can be null but mustn't be longer than the value specified by the Nameable.MAX_DESCRIPTION_LENGTH constant.

Specified by:

setDescription in interface Nameable

Parameters:

description - The new description for the item

Throws:

PermissionDeniedException - If the logged in user doesn't have write permission

InvalidDataException - If the description longer than specified by the Nameable.MAX_DESCRIPTION_LENGTH constant

isRemoved

public boolean isRemoved()

Description copied from interface: Removable

Check if the removed flag is set for this item.

Specified by:

isRemoved in interface Removable

Returns:

TRUE if the item is flagged as removed, FALSE otherwise

setRemoved

public void setRemoved(boolean removed)
                throws PermissionDeniedException

Description copied from interface: Removable

Set the removed flag for this item.

Specified by:

setRemoved in interface Removable

Parameters:

removed - TRUE if the item should be flagged as removed, FALSE otherwise

Throws:

PermissionDeniedException - If the logged in user doesn't have Permission.DELETE permission for setting the flag to TRUE or Permission.WRITE permission for setting the flag to FALSE

getEntryDate

public Date getEntryDate()

Description copied from interface: Registered

Get the date that the item was registered in the database.

Specified by:

getEntryDate in interface Registered

Returns:

A date or null if this is not known

validate

void validate()
        throws InvalidDataException,
               BaseException

Check that startDate is before newsDate is before endDate.

Overrides:

validate in class BasicItem<NewsData>

Throws:

BaseException - If there is an error

InvalidDataException

See Also:

Validatable, Developer documentation: Data validation, Developer documentation: Coding rules and guidelines for item classes

initPermissions

void initPermissions(int granted,
                     int denied)
               throws BaseException

Read permission is granted if today is between the start and end date.

Overrides:

initPermissions in class BasicItem<NewsData>

Parameters:

granted - Permissions that have been granted by the subclass

denied - Permissions that have been denied by the subclass

Throws:

BaseException - If the permissions couldn't be initialised

getStartDate

public Date getStartDate()

Get the start date and time for this news item to be published.

Returns:

The date and time

setStartDate

public void setStartDate(Date startDate)
                  throws PermissionDeniedException,
                         InvalidDataException

Set the start date and time for this item to be published.

Parameters:

startDate - The new date and time

Throws:

PermissionDeniedException - If the logged in user doesn't have Permission.WRITE permission

InvalidDataException - If the date is null

getNewsDate

public Date getNewsDate()

Get the date that is shown in listings.

Returns:

The date and time

setNewsDate

public void setNewsDate(Date newsDate)
                 throws PermissionDeniedException,
                        InvalidDataException

Set the date that is shown in listings.

Parameters:

newsDate - The new date and time

Throws:

PermissionDeniedException - If the logged in user doesn't have Permission.WRITE permission

InvalidDataException - If the date is null

getEndDate

public Date getEndDate()

Get the end date and time for this news item to be published. If this value is null, the new item is published forever.

Returns:

The date and time

setEndDate

public void setEndDate(Date endDate)
                throws PermissionDeniedException

Set the end date and time for this item to be published.

Parameters:

endDate - The new date and time, or null to publish this new item forever

Throws:

PermissionDeniedException - If the logged in user doesn't have Permission.WRITE permission