com.vaadin.server
Class SystemMessages

java.lang.Object
  com.vaadin.server.SystemMessages

All Implemented Interfaces:

java.io.Serializable

Direct Known Subclasses:

CustomizedSystemMessages

public class SystemMessages
extends java.lang.Object
implements java.io.Serializable

Contains the system messages used to notify the user about various critical situations that can occur.

Use VaadinService.setSystemMessagesProvider(SystemMessagesProvider) to customize.

The defaults defined in this class are:

• sessionExpiredURL = null
• sessionExpiredNotificationEnabled = true
• sessionExpiredCaption = ""
• sessionExpiredMessage = "Take note of any unsaved data, and click here to continue."
• communicationErrorURL = null
• communicationErrorNotificationEnabled = true
• communicationErrorCaption = "Communication problem"
• communicationErrorMessage = "Take note of any unsaved data, and click here to continue."
• internalErrorURL = null
• internalErrorNotificationEnabled = true
• internalErrorCaption = "Internal error"
• internalErrorMessage = "Please notify the administrator.
  Take note of any unsaved data, and click here to continue."
• outOfSyncURL = null
• outOfSyncNotificationEnabled = true
• outOfSyncCaption = "Out of sync"
• outOfSyncMessage = "Something has caused us to be out of sync with the server.
  Take note of any unsaved data, and click here to re-sync."
• cookiesDisabledURL = null
• cookiesDisabledNotificationEnabled = true
• cookiesDisabledCaption = "Cookies disabled"
• cookiesDisabledMessage = "This application requires cookies to function.
  Please enable cookies in your browser and click here to try again.

See Also:

Serialized Form

Field Summary

protected java.lang.String	authenticationErrorCaption
protected java.lang.String	authenticationErrorMessage
protected boolean	authenticationErrorNotificationEnabled
protected java.lang.String	authenticationErrorURL
protected java.lang.String	communicationErrorCaption
protected java.lang.String	communicationErrorMessage
protected boolean	communicationErrorNotificationEnabled
protected java.lang.String	communicationErrorURL
protected java.lang.String	cookiesDisabledCaption
protected java.lang.String	cookiesDisabledMessage
protected boolean	cookiesDisabledNotificationEnabled
protected java.lang.String	cookiesDisabledURL
protected java.lang.String	internalErrorCaption
protected java.lang.String	internalErrorMessage
protected boolean	internalErrorNotificationEnabled
protected java.lang.String	internalErrorURL
protected java.lang.String	outOfSyncCaption
protected java.lang.String	outOfSyncMessage
protected boolean	outOfSyncNotificationEnabled
protected java.lang.String	outOfSyncURL
protected java.lang.String	sessionExpiredCaption
protected java.lang.String	sessionExpiredMessage
protected boolean	sessionExpiredNotificationEnabled
protected java.lang.String	sessionExpiredURL

Method Summary

java.lang.String	getAuthenticationErrorCaption()
java.lang.String	getAuthenticationErrorMessage()
java.lang.String	getAuthenticationErrorURL()
java.lang.String	getCommunicationErrorCaption()
java.lang.String	getCommunicationErrorMessage()
java.lang.String	getCommunicationErrorURL()
java.lang.String	getCookiesDisabledCaption() Returns the caption of the message shown to the user when cookies are disabled in the browser.
java.lang.String	getCookiesDisabledMessage() Returns the message shown to the user when cookies are disabled in the browser.
java.lang.String	getCookiesDisabledURL() Returns the URL the user should be redirected to after dismissing the "you have to enable your cookies" message.
java.lang.String	getInternalErrorCaption()
java.lang.String	getInternalErrorMessage()
java.lang.String	getInternalErrorURL()
java.lang.String	getOutOfSyncCaption()
java.lang.String	getOutOfSyncMessage()
java.lang.String	getOutOfSyncURL()
java.lang.String	getSessionExpiredCaption()
java.lang.String	getSessionExpiredMessage()
java.lang.String	getSessionExpiredURL()
boolean	isAuthenticationErrorNotificationEnabled()
boolean	isCommunicationErrorNotificationEnabled()
boolean	isCookiesDisabledNotificationEnabled() Determines if "cookies disabled" messages should be shown to the end user or not.
boolean	isInternalErrorNotificationEnabled()
boolean	isOutOfSyncNotificationEnabled()
boolean	isSessionExpiredNotificationEnabled()

Methods inherited from class java.lang.Object

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

Field Detail

sessionExpiredURL

protected java.lang.String sessionExpiredURL

sessionExpiredNotificationEnabled

protected boolean sessionExpiredNotificationEnabled

sessionExpiredCaption

protected java.lang.String sessionExpiredCaption

sessionExpiredMessage

protected java.lang.String sessionExpiredMessage

communicationErrorURL

protected java.lang.String communicationErrorURL

communicationErrorNotificationEnabled

protected boolean communicationErrorNotificationEnabled

communicationErrorCaption

protected java.lang.String communicationErrorCaption

communicationErrorMessage

protected java.lang.String communicationErrorMessage

authenticationErrorURL

protected java.lang.String authenticationErrorURL

authenticationErrorNotificationEnabled

protected boolean authenticationErrorNotificationEnabled

authenticationErrorCaption

protected java.lang.String authenticationErrorCaption

authenticationErrorMessage

protected java.lang.String authenticationErrorMessage

internalErrorURL

protected java.lang.String internalErrorURL

internalErrorNotificationEnabled

protected boolean internalErrorNotificationEnabled

internalErrorCaption

protected java.lang.String internalErrorCaption

internalErrorMessage

protected java.lang.String internalErrorMessage

outOfSyncURL

protected java.lang.String outOfSyncURL

outOfSyncNotificationEnabled

protected boolean outOfSyncNotificationEnabled

outOfSyncCaption

protected java.lang.String outOfSyncCaption

outOfSyncMessage

protected java.lang.String outOfSyncMessage

cookiesDisabledURL

protected java.lang.String cookiesDisabledURL

cookiesDisabledNotificationEnabled

protected boolean cookiesDisabledNotificationEnabled

cookiesDisabledCaption

protected java.lang.String cookiesDisabledCaption

cookiesDisabledMessage

protected java.lang.String cookiesDisabledMessage

Method Detail

getSessionExpiredURL

public java.lang.String getSessionExpiredURL()

Returns:

null to indicate that the application will be restarted after session expired message has been shown.

isSessionExpiredNotificationEnabled

public boolean isSessionExpiredNotificationEnabled()

Returns:

true to show session expiration message.

getSessionExpiredCaption

public java.lang.String getSessionExpiredCaption()

Returns:

"" to show no caption.

getSessionExpiredMessage

public java.lang.String getSessionExpiredMessage()

Returns:

"Take note of any unsaved data, and click here to continue."

getCommunicationErrorURL

public java.lang.String getCommunicationErrorURL()

Returns:

null to reload the application after communication error message.

isCommunicationErrorNotificationEnabled

public boolean isCommunicationErrorNotificationEnabled()

Returns:

true to show the communication error message.

getCommunicationErrorCaption

public java.lang.String getCommunicationErrorCaption()

Returns:

"Communication problem"

getCommunicationErrorMessage

public java.lang.String getCommunicationErrorMessage()

Returns:

"Take note of any unsaved data, and click here to continue."

getAuthenticationErrorURL

public java.lang.String getAuthenticationErrorURL()

Returns:

null to reload the application after authentication error message.

isAuthenticationErrorNotificationEnabled

public boolean isAuthenticationErrorNotificationEnabled()

Returns:

true to show the authentication error message.

getAuthenticationErrorCaption

public java.lang.String getAuthenticationErrorCaption()

Returns:

"Authentication problem"

getAuthenticationErrorMessage

public java.lang.String getAuthenticationErrorMessage()

Returns:

"Take note of any unsaved data, and click here to continue."

getInternalErrorURL

public java.lang.String getInternalErrorURL()

Returns:

null to reload the current URL after internal error message has been shown.

isInternalErrorNotificationEnabled

public boolean isInternalErrorNotificationEnabled()

Returns:

true to enable showing of internal error message.

getInternalErrorCaption

public java.lang.String getInternalErrorCaption()

Returns:

"Internal error"

getInternalErrorMessage

public java.lang.String getInternalErrorMessage()

Returns:

"Please notify the administrator.
Take note of any unsaved data, and click here to continue."

getOutOfSyncURL

public java.lang.String getOutOfSyncURL()

Returns:

null to reload the application after out of sync message.

isOutOfSyncNotificationEnabled

public boolean isOutOfSyncNotificationEnabled()

Returns:

true to enable showing out of sync message

getOutOfSyncCaption

public java.lang.String getOutOfSyncCaption()

Returns:

"Out of sync"

getOutOfSyncMessage

public java.lang.String getOutOfSyncMessage()

Returns:

"Something has caused us to be out of sync with the server.
Take note of any unsaved data, and click here to re-sync."

getCookiesDisabledURL

public java.lang.String getCookiesDisabledURL()

Returns the URL the user should be redirected to after dismissing the "you have to enable your cookies" message. Typically null.

Returns:

A URL the user should be redirected to after dismissing the message or null to reload the current URL.

isCookiesDisabledNotificationEnabled

public boolean isCookiesDisabledNotificationEnabled()

Determines if "cookies disabled" messages should be shown to the end user or not. If the notification is disabled the user will be immediately redirected to the URL returned by getCookiesDisabledURL().

Returns:

true to show "cookies disabled" messages to the end user, false to redirect to the given URL directly

getCookiesDisabledCaption

public java.lang.String getCookiesDisabledCaption()

Returns the caption of the message shown to the user when cookies are disabled in the browser.

Returns:

The caption of the "cookies disabled" message

getCookiesDisabledMessage

public java.lang.String getCookiesDisabledMessage()

Returns the message shown to the user when cookies are disabled in the browser.

Returns:

The "cookies disabled" message