javafx.scene.web

Class WebErrorEvent

java.lang.Object

Event

javafx.scene.web.WebErrorEvent

public final class WebErrorEvent
extends Event

An event indicating a WebEngine error. Holds an optional text message and an optional exception associated with the error.

Since:

JavaFX 8.0

See Also:

WebEngine.onError

Field Summary

Fields

Modifier and Type	Field and Description
static <any>	ANY Common supertype for all WebErrorEvent types.
private java.lang.Throwable	exception
private java.lang.String	message
static <any>	USER_DATA_DIRECTORY_ALREADY_IN_USE This event occurs when a WebEngine detects that its user data directory is already in use by a WebEngine running in a different VM.
static <any>	USER_DATA_DIRECTORY_IO_ERROR This event occurs when a WebEngine encounters an I/O error while trying to create or access the user data directory.
static <any>	USER_DATA_DIRECTORY_SECURITY_ERROR This event occurs when a WebEngine encounters a security error while trying to create or access the user data directory.

Constructor Summary

Constructors

Constructor and Description
WebErrorEvent(java.lang.Object source, <any> type, java.lang.String message, java.lang.Throwable exception) Creates a new WebErrorEvent.

Method Summary

Modifier and Type	Method and Description
java.lang.Throwable	getException() Returns the exception associated with this event.
java.lang.String	getMessage() Returns the text message associated with this event.
java.lang.String	toString()

Methods inherited from class java.lang.Object

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

Field Detail

ANY

public static final <any> ANY

Common supertype for all WebErrorEvent types.

USER_DATA_DIRECTORY_ALREADY_IN_USE

public static final <any> USER_DATA_DIRECTORY_ALREADY_IN_USE

This event occurs when a WebEngine detects that its user data directory is already in use by a WebEngine running in a different VM.

In general, multiple WebEngine instances may share a single user data directory as long as they run in the same VM. WebEngine instances running in different VMs are not allowed to share the same user data directory.

When a WebEngine is about to start loading a web page or executing a script for the first time, it checks whether its userDataDirectory is already in use by a WebEngine running in a different VM. If the latter is the case, the WebEngine invokes the WebEngine.onError event handler, if any, with a USER_DATA_DIRECTORY_ALREADY_IN_USE event. If the invoked event handler modifies the userDataDirectory property, the WebEngine retries with the new user data directory as soon as the handler returns. If the handler does not modify the userDataDirectory property (which is the default), the WebEngine continues without the user data directory.

USER_DATA_DIRECTORY_IO_ERROR

public static final <any> USER_DATA_DIRECTORY_IO_ERROR

This event occurs when a WebEngine encounters an I/O error while trying to create or access the user data directory.

When a WebEngine is about to start loading a web page or executing a script for the first time, it checks whether it can create or access its userDataDirectory. If the check fails with an I/O error (such as java.io.IOException), the WebEngine invokes the WebEngine.onError event handler, if any, with a USER_DATA_DIRECTORY_IO_ERROR event. If the invoked event handler modifies the userDataDirectory property, the WebEngine retries with the new user data directory as soon as the handler returns. If the handler does not modify the userDataDirectory property (which is the default), the WebEngine continues without the user data directory.

USER_DATA_DIRECTORY_SECURITY_ERROR

public static final <any> USER_DATA_DIRECTORY_SECURITY_ERROR

This event occurs when a WebEngine encounters a security error while trying to create or access the user data directory.

When a WebEngine is about to start loading a web page or executing a script for the first time, it checks whether it can create or access its userDataDirectory. If the check fails with a security error (such as java.lang.SecurityException), the WebEngine invokes the WebEngine.onError event handler, if any, with a USER_DATA_DIRECTORY_SECURITY_ERROR event. If the invoked event handler modifies the userDataDirectory property, the WebEngine retries with the new user data directory as soon as the handler returns. If the handler does not modify the userDataDirectory property (which is the default), the WebEngine continues without the user data directory.

message

private final java.lang.String message

exception

private final java.lang.Throwable exception

Constructor Detail

WebErrorEvent

public WebErrorEvent(java.lang.Object source,
                     <any> type,
                     java.lang.String message,
                     java.lang.Throwable exception)

Creates a new WebErrorEvent.

Parameters:

source - the event source which sent the event

type - the event type

message - the text message associated with the event; may be null

exception - the exception associated with the event; may be null

Method Detail

getMessage

public java.lang.String getMessage()

Returns the text message associated with this event.

Returns:

the text message associated with this event, or null if there is no such message

getException

public java.lang.Throwable getException()

Returns the exception associated with this event.

Returns:

the exception associated with this event, or null if there is no such exception

toString

public java.lang.String toString()