``` -------------------------------- ### Handle RangeChangeEvent to push data into a CellList Source: https://www.gwtproject.org/doc/latest/DevGuideUiCellWidgets.html Use this handler to push new data into a CellList when the user pages through the list. The handler receives the new range, creates data for that range (here synchronous, but you could send an asynchronous RPC request), and calls updateRowData(start, data). The example also forces an initial range change with setVisibleRangeAndClearData(new Range(0, 25), true) and sets up a SimplePager to control the list. ```java /** * Example of using a {@link RangeChangeEvent.Handler} to push data into a * {@link CellList} when the range changes. */ public class RangeChangeHandlerExample implements EntryPoint { @Override public void onModuleLoad() { // Create a CellList. CellList cellList = new CellList(new TextCell()); // Add a range change handler. cellList.addRangeChangeHandler(new RangeChangeEvent.Handler() { @Override public void onRangeChange(RangeChangeEvent event) { Range range = event.getNewRange(); int start = range.getStart(); int length = range.getLength(); // Create the data to push into the view. At this point, you could send // an asynchronous RPC request to a server. List data = new ArrayList(); for (int i = start; i < start + length; i++) { data.add("Item " + i); } // Push the data into the list. updateRowData(start, data); } }); // Force the cellList to fire an initial range change event. cellList.setVisibleRangeAndClearData(new Range(0, 25), true); // Create paging controls. SimplePager pager = new SimplePager(); pager.setDisplay(cellList); // Add the widgets to the root panel. VerticalPanel vPanel = new VerticalPanel(); vPanel.add(pager); vPanel.add(cellList); RootPanel.get().add(vPanel); } } ``` -------------------------------- ### Unsplit Hello sample with EntryPoint Source: https://www.gwtproject.org/doc/latest/DevGuideCodeSplitting.html Initial version of the Hello sample that comes with GWT. It shows a button that displays an alert when clicked, without any code splitting. ```java public class Hello implements EntryPoint { public void onModuleLoad() { Button b = new Button("Click me", new ClickHandler() { public void onClick(ClickEvent event) { Window.alert("Hello, AJAX"); } }); RootPanel.get().add(b); } } ``` -------------------------------- ### GWT Plural Forms Example Source: https://www.gwtproject.org/doc/latest/DevGuideI18nMessages.html Example of plural forms in English where the message changes based on the count. ```text You have one tree. You have 2 trees. ``` -------------------------------- ### HTML Host Page for GWT Module Loading Source: https://www.gwtproject.org/doc/latest/DevGuideOrganizingProjects.html An example HTML page demonstrating the placement of GWT selection scripts and external resources to illustrate the bootstrap sequence. ```html

``` -------------------------------- ### Import icon collection with Polymer.importHref Source: https://www.gwtproject.org/doc/latest/polymer-tutorial/widgets-buildui.html Loads the Iron icon set using Polymer.importHref before starting the application. The callback starts the app only after the import succeeds. ```java package org.gwtproject.tutorial; import com.google.gwt.core.client.EntryPoint; import com.google.gwt.user.client.ui.RootPanel; import com.vaadin.polymer.Polymer; import com.vaadin.polymer.elemental.Function; public class TodoList implements EntryPoint { public void onModuleLoad() { // We have to load icon sets before run application Polymer.importHref("iron-icons/iron-icons.html", new Function() { public Object call(Object arg) { // The app is executed when all imports succeed. startApplication(); return null; } }); } private void startApplication() { RootPanel.get().add(new Main()); } } ``` -------------------------------- ### Compile-time error example: Messages interface Source: https://www.gwtproject.org/doc/latest/DevGuideI18nMessages.html Java interface for a message that takes two arguments, used in the example that produces a compile-time error due to mismatched parameter count. ```java public interface ErrorMessages extends Messages { String permissionDenied(int errorCode, String username); } ``` -------------------------------- ### Implement 9-box Layout with ClientBundle and CSS Source: https://www.gwtproject.org/doc/latest/DevGuideClientBundle.html A complete example of a 9-box layout using a ClientBundle interface, CSS with value() functions for dynamic sizing, and the corresponding HTML structure. ```java public interface Resources extends ClientBundle { Resources INSTANCE = GWT.create(Resources.class); @Source("bt.png") @ImageOptions(repeatStyle = RepeatStyle.Horizontal) ImageResource bottomBorder(); @Source("btl.png") ImageResource bottomLeftBorder(); @Source("btr.png") ImageResource bottomRightBorder(); @Source("StyleInjectorDemo.css") CssResource css(); @Source("lr.png") @ImageOptions(repeatStyle = RepeatStyle.Vertical) ImageResource leftBorder(); @Source("rl.png") @ImageOptions(repeatStyle = RepeatStyle.Vertical) ImageResource rightBorder(); @Source("tb.png") @ImageOptions(repeatStyle = RepeatStyle.Horizontal) ImageResource topBorder(); @Source("tbl.png") ImageResource topLeftBorder(); @Source("tbr.png") ImageResource topRightBorder(); } ``` ```css .contentArea { padding: value('topBorder.getHeight', 'px') value('rightBorder.getWidth', 'px') value('bottomBorder.getHeight', 'px') value('leftBorder.getWidth', 'px'); } @sprite .contentAreaTopLeftBorder { gwt-image: 'topLeftBorder'; position: absolute; top:0; left: 0; } @sprite .contentAreaTopBorder { gwt-image: 'topBorder'; position: absolute; top: 0; left: value('topLeftBorder.getWidth', 'px'); right: value('topRightBorder.getWidth', 'px'); } @sprite .contentAreaTopRightBorder { gwt-image: 'topRightBorder'; position: absolute; top:0; right: 0; } @sprite .contentAreaBottomLeftBorder { gwt-image: 'bottomLeftBorder'; position: absolute; bottom: 0; left: 0; } @sprite .contentAreaBottomBorder { gwt-image: 'bottomBorder'; position: absolute; bottom: 0; left: value('bottomLeftBorder.getWidth', 'px'); right: value('bottomRightBorder.getWidth', 'px'); } @sprite .contentAreaBottomRightBorder { gwt-image: 'bottomRightBorder'; position: absolute; bottom: 0; right: 0; } @sprite .contentAreaLeftBorder { gwt-image: 'leftBorder'; position: absolute; top: 0; left: 0; height: 100%; } @sprite .contentAreaRightBorder { gwt-image: 'rightBorder'; position: absolute; top: 0; right: 0; height: 100%; } ``` ```html

``` -------------------------------- ### Create stock table and lay out widgets in StockWatcher onModuleLoad Source: https://www.gwtproject.org/doc/latest/tutorial/buildui.html Two sequential versions of the StockWatcher EntryPoint class. The first creates the stock table header row using FlexTable.setText with row 0 and columns 0-3 for Symbol, Price, Change, and Remove. The second assembles the Add Stock panel (HorizontalPanel with TextBox and Button) and the Main panel (VerticalPanel with the table, add panel, and timestamp label), leaving TODO comments for associating with the host page and moving focus. ```java package com.google.gwt.sample.stockwatcher.client; import com.google.gwt.core.client.EntryPoint; import com.google.gwt.user.client.ui.Button; import com.google.gwt.user.client.ui.FlexTable; import com.google.gwt.user.client.ui.HorizontalPanel; import com.google.gwt.user.client.ui.Label; import com.google.gwt.user.client.ui.TextBox; import com.google.gwt.user.client.ui.VerticalPanel; public class StockWatcher implements EntryPoint { private VerticalPanel mainPanel = new VerticalPanel(); private FlexTable stocksFlexTable = new FlexTable(); private HorizontalPanel addPanel = new HorizontalPanel(); private TextBox newSymbolTextBox = new TextBox(); private Button addStockButton = new Button("Add"); private Label lastUpdatedLabel = new Label(); /** * Entry point method. */ public void onModuleLoad() { // Create table for stock data. stocksFlexTable.setText(0, 0, "Symbol"); stocksFlexTable.setText(0, 1, "Price"); stocksFlexTable.setText(0, 2, "Change"); stocksFlexTable.setText(0, 3, "Remove"); // TODO Assemble Add Stock panel. // TODO Assemble Main panel. // TODO Associate the Main panel with the HTML host page. // TODO Move cursor focus to the input box. } } ``` ```java package com.google.gwt.sample.stockwatcher.client; import com.google.gwt.core.client.EntryPoint; import com.google.gwt.user.client.ui.Button; import com.google.gwt.user.client.ui.FlexTable; import com.google.gwt.user.client.ui.HorizontalPanel; import com.google.gwt.user.client.ui.Label; import com.google.gwt.user.client.ui.TextBox; import com.google.gwt.user.client.ui.VerticalPanel; public class StockWatcher implements EntryPoint { private VerticalPanel mainPanel = new VerticalPanel(); private FlexTable stocksFlexTable = new FlexTable(); private HorizontalPanel addPanel = new HorizontalPanel(); private TextBox newSymbolTextBox = new TextBox(); private Button addStockButton = new Button("Add"); private Label lastUpdatedLabel = new Label(); /** * Entry point method. */ public void onModuleLoad() { // Create table for stock data. stocksFlexTable.setText(0, 0, "Symbol"); stocksFlexTable.setText(0, 1, "Price"); stocksFlexTable.setText(0, 2, "Change"); stocksFlexTable.setText(0, 3, "Remove"); // Assemble Add Stock panel. addPanel.add(newSymbolTextBox); addPanel.add(addStockButton); // Assemble Main panel. mainPanel.add(stocksFlexTable); mainPanel.add(addPanel); mainPanel.add(lastUpdatedLabel); // TODO Associate the Main panel with the HTML host page. // TODO Move cursor focus to the input box. } } ``` -------------------------------- ### Java classes for JSNI constructor examples Source: https://www.gwtproject.org/doc/latest/DevGuideCodingBasicsJSNI.html Java classes used to illustrate JSNI constructor invocation. The example shows a top-level class with two constructors, a static inner class, and an instance inner class. ```java package pkg; class TopLevel { public TopLevel() { ... } public TopLevel(int i) { ... } static class StaticInner { public StaticInner() { ... } } class InstanceInner { public InstanceInner(int i) { ... } } } ``` -------------------------------- ### Create a CellBrowser with CellBrowser constructor Source: https://www.gwtproject.org/doc/latest/DevGuideUiCellWidgets.html Use this constructor to create a CellBrowser instead of a CellTree. The only code difference is the constructor and the CellBrowser.Resources for CSS style and images. The example shows the same data in three levels as the CellTree example, but displayed side-by-side. ```java // Create the browser using the model. CellBrowser browser = new CellBrowser(model, "Item 1"); ``` -------------------------------- ### Wire MVP together in onModuleLoad() Source: https://www.gwtproject.org/doc/latest/DevGuideMvpActivitiesAndPlaces.html EntryPoint that wires together the ClientFactory, ActivityManager, and PlaceHistoryHandler in onModuleLoad(). It sets up the main widget and handles the current history to navigate to the URL place or the default place. ```java public class HelloMVP implements EntryPoint { private Place defaultPlace = new HelloPlace("World!"); private SimplePanel appWidget = new SimplePanel(); public void onModuleLoad() { ClientFactory clientFactory = GWT.create(ClientFactory.class); EventBus eventBus = clientFactory.getEventBus(); PlaceController placeController = clientFactory.getPlaceController(); // Start ActivityManager for the main widget with our ActivityMapper ActivityMapper activityMapper = new AppActivityMapper(clientFactory); ActivityManager activityManager = new ActivityManager(activityMapper, eventBus); activityManager.setDisplay(appWidget); // Start PlaceHistoryHandler with our PlaceHistoryMapper AppPlaceHistoryMapper historyMapper= GWT.create(AppPlaceHistoryMapper.class); PlaceHistoryHandler historyHandler = new PlaceHistoryHandler(historyMapper); historyHandler.register(placeController, eventBus, defaultPlace); RootPanel.get().add(appWidget); // Goes to the place represented on URL else default place historyHandler.handleCurrentHistory(); } } ``` -------------------------------- ### Inspect GWT Output Directory Source: https://www.gwtproject.org/doc/latest/DevGuideCompilingAndDebugging.html Example file listing of the 'war' directory after a successful GWT compilation, showing generated cache files and the nocache entry point. ```text C:\gwt-2.6.1\samples\Hello>\bin\find war war war\hello war\hello\18EEC2DA45CB5F0C2050E2539AE61FCE.cache.html war\hello\813B962DC4C22396EA14405DDEF020EE.cache.html war\hello\86DA1DCEF4F40731BE71E7978CD4776A.cache.html war\hello\A37FC20FF4D8F11605B2C4C53AF20B6F.cache.html war\hello\E3C1ABB32E39A126A9194DB727F7742A.cache.html war\hello\14A43CD7E24B0A0136C2B8B20D6DF3C0.cache.png war\hello\548CDF11D6FE9011F3447CA200D7FB7F.cache.png war\hello\9DA92932034707C17CFF15F95086D53F.cache.png war\hello\A7CD51F9E5A7DED5F85AD1D82BA67A8A.cache.png war\hello\B8517E9C2E38AA39AB7C0051564224D3.cache.png war\hello\clear.cache.gif war\hello\hello.nocache.js war\hello\hosted.html war\Hello.html ``` -------------------------------- ### JSNI field access example Source: https://www.gwtproject.org/doc/latest/DevGuideCodingBasicsJSNI.html Example of accessing static and instance fields from JSNI. The native method bar demonstrates calling instance and static methods, reading and writing instance fields, and reading a static field. Note the JSNI syntax for method calls and field access. ```java public class JSNIExample { String myInstanceField; static int myStaticField; void instanceFoo(String s) { // use s } static void staticFoo(String s) { // use s } public native void bar(JSNIExample x, String s) /*-{ // Call instance method instanceFoo() on this this.@com.google.gwt.examples.JSNIExample::instanceFoo(Ljava/lang/String;)(s); // Call instance method instanceFoo() on x x.@com.google.gwt.examples.JSNIExample::instanceFoo(Ljava/lang/String;)(s); // Call static method staticFoo() @com.google.gwt.examples.JSNIExample::staticFoo(Ljava/lang/String;)(s); // Read instance field on this var val = this.@com.google.gwt.examples.JSNIExample::myInstanceField; // Write instance field on x x.@com.google.gwt.examples.JSNIExample::myInstanceField = val + " and stuff"; // Read static field (no qualifier) @com.google.gwt.examples.JSNIExample::myStaticField = val + " and stuff"; }-*/; } ``` -------------------------------- ### Create a Maven project with webAppCreator Source: https://www.gwtproject.org/doc/latest/RefCommandLineTools.html Command to generate a GWT project using the Maven build system. ```bash webAppCreator -out foo -templates maven,sample,readme com.example.foo.Foo ``` -------------------------------- ### GWT HTML widget constructor and setHTML examples Source: https://www.gwtproject.org/doc/latest/DevGuideSecuritySafeHtml.html Two examples of using the HTML widget in GWT. The first passes a compile-time constant string to the HTML constructor, which is safe from XSS. The second passes a variable to setHTML, which may be unsafe if the value is attacker-controlled; prefer setText or Label instead. ```java HTML widget = new HTML("Some text in the widget"); ``` ```java widget.setHTML(someText); ``` -------------------------------- ### Create an Ant project with webAppCreator Source: https://www.gwtproject.org/doc/latest/RefCommandLineTools.html Command to generate a GWT project using the Ant build system. ```bash webAppCreator -junit /path/to/junit-3.8.1.jar -out foo com.example.foo.Foo ``` -------------------------------- ### CSS Selector Merging Example Source: https://www.gwtproject.org/doc/latest/DevGuideClientBundle.html Shows how rules with identical selectors are combined. ```css .div {prop: value;} .div {foo: bar;} ``` ```css .div {prop:value;foo:bar;} ``` -------------------------------- ### English Pluralization Example Source: https://www.gwtproject.org/doc/latest/DevGuideI18nPluralForms.html Demonstrates the basic concept of plural forms in English. ```text You have 1 tree. You have 2 trees. ``` -------------------------------- ### Deployment directory structure for DynaTable sample Source: https://www.gwtproject.org/doc/latest/DevGuideDeploying.html Shows the required file layout on the servlet container for the DynaTable sample, including the HTML, CSS, and JavaScript files under webapps/dynatable/. ```text webapps/dynatable/DynaTable.html webapps/dynatable/DynaTable.css webapps/dynatable/dynatable/dynatable.nocache.js // The rest of your GWT application files under webapps/dynatable/dynatable/ ``` -------------------------------- ### Add border to stock list with watchList CSS class Source: https://www.gwtproject.org/doc/latest/tutorial/style.html Defines the watchListHeader and watchList CSS classes in StockWatcher.css, then applies them to the flex table in StockWatcher.java. The header row gets a blue background and italic white text; the table gets a silver border. Save and refresh in development mode to see the border. ```css /* stock list header row */ .watchListHeader { background-color: #2062B8; color: white; font-style: italic; } /* stock list flex table */ .watchList { border: 1px solid silver; padding: 2px; margin-bottom:6px; } ``` ```java // Add styles to elements in the stock list table. stocksFlexTable.getRowFormatter().addStyleName(0, "watchListHeader"); stocksFlexTable.addStyleName("watchList"); ``` -------------------------------- ### Final Main.java code Source: https://www.gwtproject.org/doc/latest/polymer-tutorial/elements-applogic.html The complete Main.java file after adding all application logic. It includes the UiBinder setup, event listeners for adding items and clearing them, and helper methods addItem and closeMenu. ```java package org.gwtproject.tutorial.client; import com.google.gwt.core.client.GWT; import com.google.gwt.uibinder.client.UiBinder; import com.google.gwt.uibinder.client.UiField; import com.google.gwt.user.client.ui.Composite; import com.google.gwt.user.client.ui.HTMLPanel; import com.vaadin.polymer.elemental.*; import com.vaadin.polymer.paper.element.*; import java.util.ArrayList; import java.util.List; public class Main extends Composite { interface MainUiBinder extends UiBinder { } private static MainUiBinder ourUiBinder = GWT.create(MainUiBinder.class); @UiField PaperDrawerPanelElement drawerPanel; @UiField PaperIconItemElement menuClearAll; @UiField PaperIconItemElement menuClearDone; @UiField HTMLElement content; @UiField PaperFabElement addButton; @UiField PaperDialogElement addItemDialog; @UiField PaperInputElement titleInput; @UiField PaperTextareaElement descriptionInput; @UiField PaperButtonElement confirmAddButton; private List items = new ArrayList<>(); public Main() { initWidget(ourUiBinder.createAndBindUi(this)); addButton.addEventListener("click", new EventListener() { public void handleEvent(Event event) { addItemDialog.open(); } }); confirmAddButton.addEventListener("click", new EventListener() { public void handleEvent(Event event) { if (!titleInput.getValue().isEmpty()) { addItem(titleInput.getValue(), descriptionInput.getValue()); // clear text fields titleInput.setValue(""); descriptionInput.setValue(""); } } }); menuClearAll.addEventListener("click", new EventListener() { public void handleEvent(Event event) { closeMenu(); // remove all child elements while (content.hasChildNodes()) { content.removeChild(content.getFirstChild()); } } }); menuClearDone.addEventListener("click", new EventListener() { public void handleEvent(Event event) { closeMenu(); for (Item item : items) { if (item.isDone()) { content.removeChild(item.getElement()); items.remove(item); } } } }); } private void addItem(String title, String description) { Item item = new Item(); item.setTitle(title); item.setDescription(description); content.appendChild(item.getElement()); items.add(item); } private void closeMenu() { if (drawerPanel.getNarrow()) { drawerPanel.closeDrawer(); } } } ``` -------------------------------- ### CSS Property Merging Example Source: https://www.gwtproject.org/doc/latest/DevGuideClientBundle.html Rules with identical properties can be merged into a single selector list. ```css .a {background: blue;} .b {background: blue;} ``` ```css .a,.b{background:blue;} ``` -------------------------------- ### Example JSON data structure Source: https://www.gwtproject.org/doc/latest/tutorial/JSON.html A sample JSON array representing stock data returned from a server. ```json [ { "symbol": "ABC", "price": 47.65563005127077, "change": -0.4426563818062567 }, ] ``` -------------------------------- ### Split Hello sample using GWT.runAsync Source: https://www.gwtproject.org/doc/latest/DevGuideCodeSplitting.html Modified version that splits the Window.alert call into a separate download using GWT.runAsync. The callback implements RunAsyncCallback with onFailure and onSuccess methods. ```java public class Hello implements EntryPoint { public void onModuleLoad() { Button b = new Button("Click me", new ClickHandler() { public void onClick(ClickEvent event) { GWT.runAsync(new RunAsyncCallback() { public void onFailure(Throwable caught) { Window.alert("Code download failed"); } public void onSuccess() { Window.alert("Hello, AJAX"); } }); } }); RootPanel.get().add(b); } } ``` -------------------------------- ### Example JSON output Source: https://www.gwtproject.org/doc/latest/tutorial/JSONphp.html This is the expected JSON response format when navigating to the stockPrices.php URL with query parameters. ```json [{"symbol":"ABC","price":40.485578668179,"change":-0.53944918844604}, {"symbol":"DEF","price":1.3606576154209,"change":0.0051755221198266}] ``` -------------------------------- ### Invalid: constant as condition Source: https://www.gwtproject.org/doc/latest/DevGuideGssVsCss.html Shows an invalid GSS example: a constant cannot be used as a condition. This code will not compile. ```css @def MY_BOOLEAN eval("com.module.Foo.staticBooleanFunction()"); @if (MY_BOOLEAN) { ... } ``` -------------------------------- ### Create Main.java and Main.ui.xml for the main screen Source: https://www.gwtproject.org/doc/latest/polymer-tutorial/elements-buildui.html Create the main screen of the TodoList application as a UiBinder composite. The Java file defines the Main class that binds the UiBinder template, and the XML file provides the initial empty HTMLPanel container. ```java package org.gwtproject.tutorial.client; import com.google.gwt.core.client.GWT; import com.google.gwt.uibinder.client.UiBinder; import com.google.gwt.user.client.ui.Composite; import com.google.gwt.user.client.ui.HTMLPanel; public class Main extends Composite { interface MainUiBinder extends UiBinder { } private static MainUiBinder ourUiBinder = GWT.create(MainUiBinder.class); public Main() { initWidget(ourUiBinder.createAndBindUi(this)); } } ``` ```xml ``` -------------------------------- ### Using HelloWorld - instantiate and append to DOM Source: https://www.gwtproject.org/doc/latest/DevGuideUiBinder.html Shows how to instantiate the HelloWorld owner class and use it with direct DOM manipulation. Note that this is DOM only and will not work with GWT widgets. ```java HelloWorld helloWorld = new HelloWorld(); // Don't forget, this is DOM only; will not work with GWT widgets Document.get().getBody().appendChild(helloWorld.getElement()); helloWorld.setName("World"); ``` -------------------------------- ### Define ClientBundle with ImageResource and CssResource Source: https://www.gwtproject.org/doc/latest/DevGuideClientBundle.html An example of a ClientBundle interface that bundles an image and a CSS file for use with spriting. ```java interface MyResources extends ClientBundle { @Source("image.png") ImageResource image(); @Source("my.css"); CssResource css(); } ``` -------------------------------- ### webAppCreator command syntax Source: https://www.gwtproject.org/doc/latest/RefCommandLineTools.html The general syntax for invoking the webAppCreator command-line tool. ```bash webAppCreator [-[no]overwriteFiles] [-[no]ignoreExistingFiles] \ [-templates template1,template2,...] [-out dir] \ [-junit pathToJUnitJar] [-[no]maven] [-[no]ant] moduleName ``` -------------------------------- ### CSS Selector Merging Restriction Example Source: https://www.gwtproject.org/doc/latest/DevGuideClientBundle.html Rules cannot be merged if they define common properties to preserve semantic ordering. ```css .a {background: green;} .b {border: thin solid blue;} .a {border-top: thin solid red;} ``` -------------------------------- ### Configure PATH on Mac or Linux Source: https://www.gwtproject.org/doc/latest/RefCommandLineTools.html Update your .profile or .bash_profile to include the GWT distribution directory in your system PATH. ```bash PATH=$PATH:/home/user/gwt-2.0.0/ export PATH ``` -------------------------------- ### French Translation Properties Source: https://www.gwtproject.org/doc/latest/DevGuideI18nPluralForms.html Example of French pluralization rules in a properties file, where 'one' covers both 0 and 1. ```properties cartItems=There are {0,number} items in your cart. cartItems[one]=There is {0,number} item in your cart. ``` -------------------------------- ### Create appengine-web.xml Source: https://www.gwtproject.org/doc/latest/tutorial/appengine.html Create this file at StockWatcher/war/WEB-INF/appengine-web.xml. Replace the placeholder with your App Engine application ID. This deployment descriptor is required by App Engine. ```xml 1 ``` -------------------------------- ### History Token URL Format Source: https://www.gwtproject.org/doc/latest/DevGuideCodingBasicsHistory.html Example of how a history token appears as a URL fragment in the browser location bar. ```text http://www.example.com/com.example.gwt.HistoryExample/HistoryExample.html#page1 ``` -------------------------------- ### Command line execution of DevMode Source: https://www.gwtproject.org/doc/latest/DevGuideCompilingAndDebugging.html Equivalent command line execution for starting GWT development mode, specifying memory, classpath, and the module to run. ```bash java -Xmx256M -cp "src;war/WEB-INF/classes;\gwt-2.0.0\gwt-user.jar;\gwt-2.0.0\gwt-dev.jar" com.google.gwt.dev.DevMode -startupUrl Hello.html com.google.gwt.sample.hello.Hello ``` -------------------------------- ### Example XML Email Document Source: https://www.gwtproject.org/doc/latest/DevGuideCodingBasicsXML.html A sample XML document representing an email message used for parsing demonstrations. ```xml

2007-05-12T12:03:55Z Re: Flight info

I'll pick you up at the airport at 8:30. See you then! ``` -------------------------------- ### Get stocks with handleError in onFailure Source: https://www.gwtproject.org/doc/latest/tutorial/appengine.html Calls stockService.getStocks and delegates failures to handleError(). The onSuccess method is omitted in the source. ```java stockService.getStocks(new AsyncCallback() { public void onFailure(Throwable error) { handleError(error); } ... }); ``` -------------------------------- ### JUnit failure stack trace output Source: https://www.gwtproject.org/doc/latest/tutorial/JUnit.html Example output from a failed test run, including the AssertionFailedError and stack trace. ```text Testsuite: com.google.gwt.sample.stockwatcher.client.StockWatcherTest Tests run: 2, Failures: 1, Errors: 0, Time elapsed: 16.443 sec Testcase: testSimple took 16.238 sec Testcase: testStockPriceCtor took 0.155 sec FAILED Remote test failed at 172.29.212.75 / Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.9.0.1) Gecko/2008070208 Firefox/3.0.1 expected=2.857142857142857 actual=0.2857142857142857 delta=0.0010 junit.framework.AssertionFailedError: Remote test failed at 172.29.212.75 / Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.9.0.1) Gecko/2008070208 Firefox/3.0.1 expected=2.857142857142857 actual=0.2857142857142857 delta=0.0010 at com.google.gwt.sample.stockwatcher.client.StockWatcherTest.testStockPriceCtor(StockWatcherTest.java:38) at com.google.gwt.sample.stockwatcher.client.__StockWatcherTest_unitTestImpl.doRunTest(__StockWatcherTest_unitTestImpl.java:7) ... ``` -------------------------------- ### Create a working module for faster compilation Source: https://www.gwtproject.org/doc/latest/DevGuideOrganizingProjects.html A working module configuration that restricts permutations to speed up development time. ```xml

```