Field Detail

• HOSTED_MODE_PERMUTATION_STRONG_NAME

  public static final java.lang.String HOSTED_MODE_PERMUTATION_STRONG_NAME

  This constant is used by getPermutationStrongName() when running in Development Mode.

  See Also:

  Constant Field Values

Constructor Detail

• GWT

  public GWT()

Method Detail

• create

  public static <T> T create(java.lang.Class<?> classLiteral)

  Instantiates a class via deferred binding.

  The argument to create(Class) must be a class literal because the Production Mode compiler must be able to statically determine the requested type at compile-time. This can be tricky because using a Class variable may appear to work correctly in Development Mode.

  Parameters:

  classLiteral - a class literal specifying the base class to be instantiated

  Returns:

  the new instance, which must be cast to the requested class

• getHostPageBaseURL

  public static java.lang.String getHostPageBaseURL()

  Gets the URL prefix of the hosting page, useful for prepending to relative paths of resources which may be relative to the host page. Typically, you should use getModuleBaseURL() unless you have a specific reason to load a resource relative to the host page.

  Returns:

  if non-empty, the base URL is guaranteed to end with a slash

• getModuleBaseForStaticFiles

  public static java.lang.String getModuleBaseForStaticFiles()

  Gets the URL prefix that should be prepended to URLs that point to static files generated by the GWT compiler, such as files in the module's public path.

  Normally this will be the same value as getModuleBaseURL(), but may be different when a GWT app is configured to get its static resources from a different server.

  Returns:

  if non-empty, the base URL is guaranteed to end with a slash

• getModuleBaseURL

  public static java.lang.String getModuleBaseURL()

  Gets the URL prefix that should be prepended to URLs that are intended to be module-relative, such as RPC entry points.

  If the URL points to an output file of the GWT compiler (such as a file in the public path), use getModuleBaseForStaticFiles() instead.

  Returns:

  if non-empty, the base URL is guaranteed to end with a slash

• getModuleName

  public static java.lang.String getModuleName()

  Gets the name of the running module.

• getPermutationStrongName

  public static java.lang.String getPermutationStrongName()

  Returns the permutation's strong name. This can be used to distinguish between different permutations of the same module. In Development Mode, this method will return "HostedMode".

• getTypeName

  @Deprecated
  public static java.lang.String getTypeName(java.lang.Object o)

  Deprecated. Use Object.getClass(), Class.getName()

• getUncaughtExceptionHandler

  public static GWT.UncaughtExceptionHandler getUncaughtExceptionHandler()

  Returns the currently active uncaughtExceptionHandler. "Top level" methods that dispatch events from the browser into user code must call this method on entry to get the active handler. If the active handler is null, the entry point must allow exceptions to escape into the browser. If the handler is non-null, exceptions must be caught and routed to the handler. See the source code for DOM.dispatchEvent() for an example of how to handle this correctly.

  Returns:

  the currently active handler, or null if no handler is active.

• getUniqueThreadId

  public static java.lang.String getUniqueThreadId()

  Returns the empty string when running in Production Mode, but returns a unique string for each thread in Development Mode (for example, different windows accessing the dev mode server will each have a unique id, and hitting refresh without restarting dev mode will result in a new unique id for a particular window. TODO(unnurg): Remove this function once Dev Mode rewriting classes are in gwt-dev.

• getVersion

  public static java.lang.String getVersion()

• isClient

  public static boolean isClient()

  Returns true when running inside the normal GWT environment, either in Development Mode or Production Mode. Returns false if this code is running in a plain JVM. This might happen when running shared code on the server, or during the bootstrap sequence of a GWTTestCase test.

• isProdMode

  public static boolean isProdMode()

  Returns true when running in production mode. Returns false when running either in development mode, or when running in a plain JVM.

• isScript

  public static boolean isScript()

  Determines whether or not the running program is script or bytecode.

• log

  public static void log(java.lang.String message)

  Logs a message to the development shell logger in Development Mode. Calls are optimized out in Production Mode.

• log

  public static void log(java.lang.String message,
         java.lang.Throwable e)

  Logs a message to the development shell logger in Development Mode. Calls are optimized out in Production Mode.

• runAsync

  public static void runAsync(java.lang.Class<?> name,
              RunAsyncCallback callback)

  The same as runAsync(RunAsyncCallback), except with an extra parameter to provide a name for the call. The name parameter should be supplied with a class literal. No two runAsync calls in the same program should use the same name.

• runAsync

  public static void runAsync(RunAsyncCallback callback)

  Run the specified callback once the necessary code for it has been loaded.

• setUncaughtExceptionHandler

  public static void setUncaughtExceptionHandler(GWT.UncaughtExceptionHandler handler)

  Sets a custom uncaught exception handler. See getUncaughtExceptionHandler() for details.

  Parameters:

  handler - the handler that should be called when an exception is about to escape to the browser, or null to clear the handler and allow exceptions to escape.

• setBridge

  static void setBridge(GWTBridge bridge)

  Called via reflection in Development Mode; do not ever call this method in Production Mode.