javax.faces.application

Class FacesMessage

java.lang.Object

javax.faces.application.FacesMessage

All Implemented Interfaces:

Serializable

public class FacesMessage
extends Object
implements Serializable

FacesMessage represents a single validation (or other) message, which is typically associated with a particular component in the view. A FacesMessage instance may be created based on a specific messageId. The specification defines the set of messageIds for which there must be FacesMessage instances.

The implementation must take the following steps when creating FacesMessage instances given a messageId:

Call Application.getMessageBundle(). If non-null, locate the named ResourceBundle, using the Locale from the current UIViewRoot and see if it has a value for the argument messageId. If it does, treat the value as the summary of the FacesMessage. If it does not, or if Application.getMessageBundle() returned null, look in the ResourceBundle named by the value of the constant FACES_MESSAGES and see if it has a value for the argument messageId. If it does, treat the value as the summary of the FacesMessage. If it does not, there is no initialization information for the FacesMessage instance.

In all cases, if a ResourceBundle hit is found for the {messageId}, look for further hits under the key {messageId}_detail. Use this value, if present, as the detail for the returned FacesMessage.

Make sure to perform any parameter substitution required for the summary and detail of the FacesMessage.

See Also:

Serialized Form

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	FacesMessage.Severity Class used to represent message severity levels in a typesafe enumeration.

Field Summary

Fields

Modifier and Type	Field and Description
static String	FACES_MESSAGES ResourceBundle identifier for messages whose message identifiers are defined in the JavaServer Faces specification.
static FacesMessage.Severity	SEVERITY_ERROR Message severity level indicating that an error has occurred.
static FacesMessage.Severity	SEVERITY_FATAL Message severity level indicating that a serious error has occurred.
static FacesMessage.Severity	SEVERITY_INFO Message severity level indicating an informational message rather than an error.
static FacesMessage.Severity	SEVERITY_WARN Message severity level indicating that an error might have occurred.
static List	VALUES Immutable List of valid FacesMessage.Severity instances, in ascending order of their ordinal value.
static Map	VALUES_MAP Immutable Map of valid FacesMessage.Severity instances, keyed by name.

Constructor Summary

Constructors

Constructor and Description
FacesMessage() Construct a new FacesMessage with no initial values.
FacesMessage(FacesMessage.Severity severity, String summary, String detail) Construct a new FacesMessage with the specified initial values.
FacesMessage(String summary) Construct a new FacesMessage with just a summary.
FacesMessage(String summary, String detail) Construct a new FacesMessage with the specified initial values.

Method Summary

Modifier and Type	Method and Description
String	getDetail() Return the localized detail text.
FacesMessage.Severity	getSeverity() Return the severity level.
String	getSummary() Return the localized summary text.
boolean	isRendered()
void	rendered() Marks this message as having been rendered to the client.
void	setDetail(String detail) Set the localized detail text.
void	setSeverity(FacesMessage.Severity severity) Set the severity level.
void	setSummary(String summary) Set the localized summary text.

Methods inherited from class java.lang.Object

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

Field Detail

FACES_MESSAGES

public static final String FACES_MESSAGES

ResourceBundle identifier for messages whose message identifiers are defined in the JavaServer Faces specification.

See Also:

Constant Field Values

SEVERITY_INFO

public static final FacesMessage.Severity SEVERITY_INFO

Message severity level indicating an informational message rather than an error.

SEVERITY_WARN

public static final FacesMessage.Severity SEVERITY_WARN

Message severity level indicating that an error might have occurred.

SEVERITY_ERROR

public static final FacesMessage.Severity SEVERITY_ERROR

Message severity level indicating that an error has occurred.

SEVERITY_FATAL

public static final FacesMessage.Severity SEVERITY_FATAL

Message severity level indicating that a serious error has occurred.

VALUES

public static final List VALUES

Immutable List of valid FacesMessage.Severity instances, in ascending order of their ordinal value.

VALUES_MAP

public static final Map VALUES_MAP

Immutable Map of valid FacesMessage.Severity instances, keyed by name.

Constructor Detail

FacesMessage

public FacesMessage()

Construct a new FacesMessage with no initial values. The severity is set to Severity.INFO.

FacesMessage

public FacesMessage(String summary)

Construct a new FacesMessage with just a summary. The detail is null, the severity is set to Severity.INFO.

FacesMessage

public FacesMessage(String summary,
                    String detail)

Construct a new FacesMessage with the specified initial values. The severity is set to Severity.INFO.

Parameters:

summary - Localized summary message text

detail - Localized detail message text

Throws:

IllegalArgumentException - if the specified severity level is not one of the supported values

FacesMessage

public FacesMessage(FacesMessage.Severity severity,
                    String summary,
                    String detail)

Construct a new FacesMessage with the specified initial values.

Parameters:

severity - the severity

summary - Localized summary message text

detail - Localized detail message text

Throws:

IllegalArgumentException - if the specified severity level is not one of the supported values

Method Detail

getDetail

public String getDetail()

Return the localized detail text. If no localized detail text has been defined for this message, return the localized summary text instead.

setDetail

public void setDetail(String detail)

Set the localized detail text.

Parameters:

detail - The new localized detail text

getSeverity

public FacesMessage.Severity getSeverity()

Return the severity level.

setSeverity

public void setSeverity(FacesMessage.Severity severity)

Set the severity level.

Parameters:

severity - The new severity level

Throws:

IllegalArgumentException - if the specified severity level is not one of the supported values

getSummary

public String getSummary()

Return the localized summary text.

setSummary

public void setSummary(String summary)

Set the localized summary text.

Parameters:

summary - The new localized summary text

isRendered

public boolean isRendered()

Returns:

true if rendered() has been called, otherwise false

Since:

2.0

rendered

public void rendered()

Marks this message as having been rendered to the client.

Since:

2.0