net.sf.basedb.core
Class Help

java.lang.Object
  net.sf.basedb.core.BasicItem<D>
      net.sf.basedb.core.ChildItem<HelpData>
          net.sf.basedb.core.Help

All Implemented Interfaces:

AccessControlled, Identifiable, Nameable

public class Help
extends ChildItem<HelpData>
implements Nameable

This class is used to represent a help text for a client application.

Version:

2.0

Author:

Nicklas

Last modified

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

Field Summary

static int	MAX_EXTERNAL_ID_LENGTH The maximum length of the external id variable that can be stored in the database.
private static QueryRuntimeFilter	RUNTIME_FILTER This filter will only return items if the logged in user has generic read permission to clients.
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

Help(HelpData data)
Creates a new help item

Method Summary

static Help	getById(DbControl dc, int id) Get a Help item when you know the ID.
Client	getClient() Get the client application this setting is valid for.
String	getDescription() Get the description for the item.
String	getExternalId() Get the external id for this Help item.
String	getName() Get the name of the item.
static Help	getNew(DbControl dc, Client client, String externalId) Create a new Help item.
static ItemQuery<Help>	getQuery(Client client) Get a query configured to retrieve help texts for the specified client application.
(package private) SharedData	getSharedParent() Get the shareable parent item of this child item.
Item	getType() Get the type of item represented by the object.
(package private) void	setClient(Client client) Set the client application this setting is valid for.
void	setDescription(String description) Set the description for the item.
void	setExternalId(String externalId) Set the external id for this Help item.
void	setName(String name) Set the name of the item.

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

getPermissionForWriteDeleteAndCreate, getPluginPermissions, initPermissions

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

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

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.HELP, getType()

MAX_EXTERNAL_ID_LENGTH

public static final int MAX_EXTERNAL_ID_LENGTH

The maximum length of the external id variable that can be stored in the database. Check the length against this value before calling the setExternalId(String) method to avoid exceptions.

See Also:

Constant Field Values

RUNTIME_FILTER

private static final QueryRuntimeFilter RUNTIME_FILTER

This filter will only return items if the logged in user has generic read permission to clients.

Constructor Detail

Help

Help(HelpData data)

Creates a new help item

Parameters:

data - the data

Method Detail

getNew

public static Help getNew(DbControl dc,
                          Client client,
                          String externalId)
                   throws BaseException

Create a new Help item.

Parameters:

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

client - The Client which this help text is for

externalId - A unique string used for quick retrieval of a specific help text

Returns:

The new ClientDefaultSetting item

Throws:

BaseException - If there is an error

See Also:

Client.newHelp(String)

getById

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

Get a Help 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 Help 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<Help> getQuery(Client client)

Get a query configured to retrieve help texts for the specified client application.

Parameters:

client - The client to retreive help for, null is allowed if the logged in user has generic READ permission for clients in which case all help will be returned

Returns:

An ItemQuery object

See Also:

Client.getHelp()

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

getSharedParent

SharedData getSharedParent()

Description copied from class: ChildItem

Get the shareable parent item of this child item. This is used by the ChildItem.initPermissions(int, int) method to calculate the logged in user's permissions for the child item.

Specified by:

getSharedParent in class ChildItem<HelpData>

Returns:

The parent item

getClient

public Client getClient()
                 throws PermissionDeniedException,
                        BaseException

Get the client application this setting is valid for.

Returns:

The Client item

Throws:

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

BaseException - If there is another error

setClient

void setClient(Client client)
         throws PermissionDeniedException,
                InvalidDataException

Set the client application this setting is valid for. Can only be set on a new item.

Throws:

InvalidDataException - If the client is null

PermissionDeniedException

getExternalId

public String getExternalId()

Get the external id for this Help item.

Returns:

A string with the external id of this item

setExternalId

public void setExternalId(String externalId)
                   throws PermissionDeniedException,
                          InvalidDataException

Set the external id for this Help item. The value cannot be null and must not be longer than the value specified by the MAX_EXTERNAL_ID_LENGTH constant. It must also be a value that is unique for the client application.

Parameters:

externalId - The new external id for this item

Throws:

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

InvalidDataException - If the new value is null or longer than MAX_EXTERNAL_ID_LENGTH