votorola.g.web.gwt

Class GWTX

java.lang.Object

GWTX

public final class GWTX
extends Object

General utilities and services for GWT applications.

Field Summary

Fields

Modifier and Type	Field and Description
static RegExp	DEV_MODE_LOCATION_PATTERN The pattern of a dev mode URL.

Constructor Summary

Constructors

Constructor and Description
GWTX()

Method Summary

Methods

Modifier and Type	Method and Description
Browser	browser() The browser under which the application is running.
EventBus	bus() The general event bus.
static void	handleUncaughtException(Throwable t) Shows the exception in an alert box along with instructions for developers to get more information.
static GWTX	i() The single instance of GWTX.
static StringBuilder	stringBuilderClear() A common string builder cleared for atomic reuse.
static int	wrapMaxInteger(int value, int min) Returns the same value if it is less than Integer.MAX_VALUE, otherwise returns min.

Methods inherited from class java.lang.Object

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

Field Detail

DEV_MODE_LOCATION_PATTERN

public static final RegExp DEV_MODE_LOCATION_PATTERN

The pattern of a dev mode URL. The pattern splits the URL into groups: (1) the leading portion, (2) the gwt.codesvr parameter value and (3) the trailing portion which might be null (or empty depending on the browser). If the trailing portion is non-null/non-empty, then it may be appended directly to the leading portion to produce a URL without the gwt.codesvr parameter; otherwise the leading portion alone will suffice for this purpose provided the trailing '?' or '&' character is chopped. An example of a dev mode URL is:

http://localhost/path?p1=x&q1=x&gwt.codesvr=localhost:9997&p3=x&q3=x

The resulting values for the groups are (1) "http://localhost/path?p1=x&q1=x&", (2) "localhost:9997" and (3) "p3=x&q3=x".

See Also:

GWT.isProdMode()

Constructor Detail

GWTX

public GWTX()

Method Detail

i

public static GWTX i()

The single instance of GWTX.

bus

public EventBus bus()

The general event bus.

browser

public Browser browser()

The browser under which the application is running. The browser is also specified on the document body as style class "voB-browser", where browser is named in lowercase.

handleUncaughtException

public static void handleUncaughtException(Throwable t)

Shows the exception in an alert box along with instructions for developers to get more information. Beware that a universal handler will not necessarily catch exceptions during event dispatch (GWT 2.3, 2.4, Firefox and Chrome, is it only DOM events that slip through?). They tend to hit the JavaScript console as umbrella exceptions with no name or line number. Consider therefore adding explicit catchers to the dispatcher where possible, otherwise to the individual handlers.

See Also:

WebModeExceptions

stringBuilderClear

public static StringBuilder stringBuilderClear()

A common string builder cleared for atomic reuse. Consider calling stringBuilderClear().trimToSize() after building a very large string.

wrapMaxInteger

public static int wrapMaxInteger(int value,
                 int min)

Returns the same value if it is less than Integer.MAX_VALUE, otherwise returns min. This convenience method serves mainly to document that integral wrapping is not emulated by GWT.

See Also:

Language support