com.google.gwt.core.client.impl

Class LoadingStrategyBase

java.lang.Object

com.google.gwt.core.client.impl.LoadingStrategyBase

public static class LoadingStrategyBase
extends Object

Base for a standard loading strategy used in a web browser. Subclasses provide an implementation of DownloadStrategy, thereby controlling how the download of the code will be done, while the base class controls how to interact with the linker, handle download failures, etc. The linker it is used with should provide JavaScript-level functions to indicate how to handle downloading and installing code. Linkers should always provide a function __gwtStartLoadingFragment. This function is called by this class with two arguments: an integer fragment number that needs to be downloaded, and a one-argument loadFinished function. If the load fails, that function should be called with a descriptive exception as the argument. If the load succeeds, that function may also be called, so long as it isn't called until the downloaded code has been installed. If the mechanism for loading the contents of fragments is provided by the linker, the __gwtStartLoadingFragment function should return null or undefined, and the linker should handle installing the code as well. Note that in this case, all the code in this class is pretty much moot. Alternatively, the function can return a URL designating from where the code for the requested fragment can be downloaded. In that case, the linker should also provide a function __gwtInstallCode for actually installing the code once it is downloaded. That function will be passed the loaded code once it has been downloaded.

See Also:

Serialized Form

Method Summary

Methods inherited from class java.lang.Object

equals, finalize, getClass, hashCode, toString