Java Proficiency: Add Two Big Number In Java - 0 views
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Java Vogue on 14 May 15it is good concept for adding two number
com.google.gwt.gears.Gears
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Organize Projects - Google Web Toolkit - Google Code - 0 views
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two ways to approach loading them
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nclude each module with a separate <script> tag
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Create a top level module XML definition
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Compile the top level module
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the second approach will lead to much better end-user performance
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each module has to be downloaded separately by the end-user's browser
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each module will contain redundant copies of GWT library
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conflict with each other during event handling
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Linkers are divided into three categories, PRE, POST, and PRIMARY
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one primary linker is run for a compilation
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everal linkers are provided by Core.gwt.xml, which is automatically inherited by User.gwt.xml.
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monolithic JavaScript file.
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cross-site deployment model.
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standard iframe-based
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<add-linker name="xs" />
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The GWT compiler
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packaging its output with the Linker subsystem
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responsible for the final packaging of the JavaScript code
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providing a pluggable bootstrap mechanism
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re-use an existing Java API for a GWT project,
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<super-source>
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"re-root" a source path
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to emulate part of the JRE not implemented by GWT
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tells the compiler to add all subfolders of com/example/myproject/jre/
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to the source path
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com/google/myproject/gwt/jre/java/util/UUID.java
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most commonly used elements in the module XML file.
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<inherits name="
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herits all the settings from the specified module
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<entry-point class=
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Entry points are all compiled into a single codebase
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when the onModuleLoad() of your first entry point finishes, the next entry point is called immediately.
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Any number of entry-point classes can be added
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<source path="
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resources get copied into the output directory during a GWT compile.
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client subpackage is implicitly added to the source path
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<public path="path" />
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treated as a publicly-accessible resource.
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resources get copied into the output directory
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the public subpackage is implicitly added to the public
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<servlet
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For RPC, this element loads a servlet class
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mounted at the specified URL path
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path=
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class="
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URL path should be absolute
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@RemoteServiceRelativePath attribute
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you must configure a WEB-INF/web.xml in your war directory to load any servlets needed.
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n development mode,
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<script src="
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external JavaScrip
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<stylesheet src="
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Extends the set of values
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for an existing client property
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<replace-with-class>
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<generate-with-class>
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<when-property-is
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three different types of predicates are
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<when-type-assignable
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<when-type-is
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<all>
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<any>
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<none>
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GWT libraries are organized into modules
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you want to inherit at least the User module
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contains all the core GWT functionality
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including the EntryPoint class
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widgets and panels
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History feature
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Internationalization
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DOM programming, and more
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Low-level HTTP
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Use the following syntax to cause an external JavaScript file to be loaded
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before your module entry point is called.
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as if you had included it explicitly using the HTML <script
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loaded before your onModuleLoad() is called.
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all included scripts will be loaded when your application starts, in the order in which they are declared.
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associate external CSS files with your module
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GWT.getModuleBaseURL() + "foo.css" in client code
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module's public path
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useful when
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inheritance makes resource inclusion particularly convenient.
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If you wish to create a reusable library that relies upon particular stylesheets or JavaScript files, you can be sure that clients
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see the documentation for FileSet for a general overview
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<public>
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<super-source>
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<source>
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includes
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excludes
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defaultexcludes
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casesensitive
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By default, the patterns listed here are excluded.
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defaultexcludes is true
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<script src='myApp/myApp.nocache.js'></script>
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<script> tags always block evaluation of the page
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<img> tags do not block page evaluation
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two simultaneous connections
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The body.onload() event will only fire once all external resources are fetched, including images and frames.
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GWT selection script
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like a normal script tag
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but the compiled script will be fetched asynchronously.
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Parsing is blocked until externalScriptZero.js is done fetching and evaluating.
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myApp/myApp.nocache.js completes
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the compiled scrip
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(<hashname>.cache.html
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begins fetching in a hidden IFRAME (this is non-blocking).
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onModuleLoad() is not called yet, as we're still waiting on externalScriptOne.js
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body.onload() fires
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onload='alert("w00t!")
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put the GWT selection script as early as possible
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because it won't block any other script requests
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<img> tags are not guaranteed to be done loading when onModuleLoad() is called
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<script> tags are guaranteed to be done loading when onModuleLoad() is called
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multiple EntryPoints
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will all be called in sequence as soon as that module (and the outer document) is ready
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multiple GWT modules within the same page
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each module's EntryPoint will be called as soon as both that module and the outer document is ready
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EntryPoints are not guaranteed to fire at the same time
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or in the same order
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in which their selection scripts were specified in the host page