41  giving users a voice wall posts in your app

... expertise and insight have made this book what it is In the order they appear in the book: • • • • • • • • Jayant Agarwalla Will Pate Alistair Morton Rajat Agarwalla Mark Slee Ilya Grigorik James Walker ... Narrow Profile Boxes Tabling Users Page and Box Titles Profile Box Subtitles Forms the Facebook Way Heads Up! Heading Your App Pages Dashing Dashboards: Heading Your App Pages Tabs Ahoy! Media ... because it can track apps on all platforms.) Deft Labs’ AppHound AppHound is available as a Facebook app (http://apps.facebook.com/apphound) Discussion Either one of those apps will help peel back...

Ngày tải lên: 04/07/2014, 14:46

... technology into your pages Chapter 4, Saving and Retrieving Data, shows you how to make your site interact with data stored in a database You have controls to retrieve data, allow your users to interact ... 92 93 Saving and Retrieving Data 96 Getting Data from a Database Binding Data Controls Create a Sample Web Page Using a DataSource Control “Pay No Attention ... designations appear in this book, and O’Reilly Media, Inc was aware of a trademark claim, the designations have been printed in caps or initial caps While every precaution has been taken in the...

Ngày tải lên: 16/02/2014, 00:20

... same way The separation enables you to add functionality to your application in a discrete way that can make your application much easier to update and can reduce overall bandwidth This separation ... tenets of Ajax, and you might wonder how XML fits into all this As Jesse James Garrett originally describes, Ajax incorporates XML as a data interchange format, XSLT as a manipulation format, and XHTML ... PM Page xx sINTRODUCTION • Chapter 5, “Ajax and Data Exchange”: Ajax is everywhere This chapter explains what Ajax is and what goes into an Ajax request It describes the pitfalls of Ajax and...

Ngày tải lên: 27/03/2014, 13:33

... collecting data, validating it, and indicating to the end user that there is an error An inconsistent interface for data validation and error handling decreases the maintainability of the application ... a declarative approach to build its applications A declarative design approach separates the application’s “what happens” functionality from the application’s “how it happens” functionality In ... small data access tasks like retrieving data from or inserting data into a table • The JDBC API, while using Java objects in the actual API, does not take an objectoriented approach to data access...

Ngày tải lên: 27/03/2014, 13:35

... technology into your pages Chapter 4, Saving and Retrieving Data, shows you how to make your site interact with data stored in a database You have controls to retrieve data, allow your users to interact ... 92 93 Saving and Retrieving Data 96 Getting Data from a Database Binding Data Controls Create a Sample Web Page Using a DataSource Control “Pay No Attention ... designations appear in this book, and O’Reilly Media, Inc was aware of a trademark claim, the designations have been printed in caps or initial caps While every precaution has been taken in the...

Ngày tải lên: 27/03/2014, 13:37

... users, however Running an Application n Figure 1.16 The actual ScreenBoard program in action (on Mac OS X)  Creating an Application Creating an Application When creating an Adobe AIR application, ... option of replacing the original installation with the update Uninstalling an Application On Windows you can uninstall an AIR application as you would any other application by using the Add or Remove ... installable AIR applications) Chapter Using Aptana Studio Using Aptana Studio Aptana Studio, available at www.aptana com, is an open-source IDE written in Java Because it’s a Java application, it runs...

Ngày tải lên: 27/03/2014, 13:38

... update the database report any errors test the non-Ajax version extra bits adding records via Ajax what we’ll add the Ajax elements apply the Ajax layer set up the Ajax prepare the form data complete ... phpMyAdmin, you can run your commands in the SQL pop-up window or through the SQL tab creating the database extra bits access MySQL p make the database p • You can use pretty much any database application ... handle the email display no results complete the function test the Ajax layer extra bits appendix Ajax issues Ajax alternatives introducing JSON sending JSON accessing JSON data using JSON data...

Ngày tải lên: 27/03/2014, 13:38

... sent to Ajax apps text/javascript Body is a piece of JavaScript code Standard js files, JavaScript fragments sent to Ajax apps image/png, image/ jpeg, image/gif Body is a binary image Images sent ... Ltd., and runs Ajax training courses in the UK and overseas with Skillsmatter Ltd He is well-known as the author of Manning’s Ajax in Action, Prototype & Scriptaculous in Action and Ajax in Practice ... is declared as HTML, and subsequently made interactive Selectors play an important role in this approach, in locating the elements to which to add behavior There is an alternative approach to...

Ngày tải lên: 29/04/2014, 15:05

... collecting data, validating it, and indicating to the end user that there is an error An inconsistent interface for data validation and error handling decreases the maintainability of the application ... a declarative approach to build its applications A declarative design approach separates the application’s “what happens” functionality from the application’s “how it happens” functionality In ... small data access tasks like retrieving data from or inserting data into a table • The JDBC API, while using Java objects in the actual API, does not take an objectoriented approach to data access...

Ngày tải lên: 12/08/2014, 22:22

... config /WEB-INF/struts-config.xml validating true ... application, an tag must be configured as shown here: application ApplicationResources ... JSP pages use JavaBeans to separate the presentation logic in the application from the data that is going to be displayed on the screen A JavaBean is a regular class that can contain the data and...

Ngày tải lên: 12/08/2014, 22:22

... names getAttribute() and setAttribute() are arbitrary names You can call your “wrapper” method to an internal HashMap anything you want as long as the method names follow standard JavaBean naming ... application that is interacting with a database • The Action class has SQL Data Definition Language (DDL) embedded in it Any changes to the underlying table structures that the JavaEdge application ... Java class name and instantiate an instance of that class ■ Note It is a good practice to use the action attribute rather than the name, scope, and type attributes to define the JavaBean that...

Ngày tải lên: 12/08/2014, 22:22

... OBJECTRELATIONALBRIDGE The JavaEdge Data Access Objects All the DAOs in the JavaEdge application are going to extend a single interface class called DataAccessObject This interface guarantees that all ... be taken against the data stored in the JavaEdge database Each of these three methods has a ValueObject passed in as a parameter The DAO will use the data contained in the ValueObject parameter ... functionality, make the DataAccessObject an abstract class rather than an interface The code for the DataAccessObject interface is shown here: package com.apress.javaedge.common; public interface DataAccessObject...

Ngày tải lên: 12/08/2014, 22:22

... Java classes and database tables The mappings demonstrated in the chapter include the following: • Simple table mappings • One-to-one mappings • One-to-many mappings • Many-to-many mappings • ... the same reason Now, let’s discuss how to map the JavaEdge classes to database tables stored in your database Setting Up a Simple Java Class-to-Table Mapping Let’s start with a simple mapping, ... retrieve data • Insert and update data into the JavaEdge database • Delete data from the JavaEdge database Retrieving Data: A Simple Example The first piece of code that we are going to look at shows...

Ngày tải lên: 12/08/2014, 22:22

... validation rule takes a single parameter, maxlength, as an input value: maxlength 10 The tag contains two other tags: and ... is a properly formatted e-mail address intRange Validates whether an integer is within a particular range floatRange Validates whether a float is within a particular range doubleRange Validates ... types in your application Mapping Tiles Definitions to Action Forwards Placing the Tiles definitions in a single file eliminates almost half of the JSP pages needed to build the JavaEdge application...

Ngày tải lên: 12/08/2014, 22:22

... equal Some log messages are simply informational, such as logging the value of a variable at a certain point in a process Others are more serious, perhaps indicating a system or an application ... requirements Using Commons Logging The Java logging API isn’t the only API available for adding logging capabilities to your application In fact, a wide variety of logging APIs are available, but ... associating the maxlength validation rule within a tag in the validation.xml file, you need to define a tag that contains the name of the variable via a tag and a numeric...

Ngày tải lên: 12/08/2014, 22:22

... lists The main reason you would use a database is to store data, and since you are using a database to store the data, you are probably storing large lists of data rather than individual items ... /WEB-INF/toolbox.xml org.apache.velocity.properties /WEB-INF/velocity.properties ... to pass in a Collection from your Java code and access the objects contained in it Using this capability, you can load the data from your database and package it up using the Value Object pattern...

Ngày tải lên: 12/08/2014, 22:22

... response, ActionMapping mapping) throws IOException, ServletException { if (mapping instanceof JavaEdgeActionMapping) { JavaEdgeActionMapping jeMapping = (JavaEdgeActionMapping) mapping; if (jeMapping.getSecure()) ... JavaEdge archive file, extract it to a directory on your machine Installing the JavaEdge Database The first task to get the JavaEdge application up and running is to create the JavaEdge database ... and return false As far as explanations go, that was pretty intense, so just to recap: checkMember() will be passed an instance of ActionMapping If this ActionMapping instance is in fact an instance...

Ngày tải lên: 12/08/2014, 22:22

... class wrapping business logic in DAO, 220 data abstraction, data access design patterns, 174 data access objects See DAO Data Access Objects pattern See DAO pattern data access tier architecting ... JavaEdge application, 27 adding log4j to classpath, 342 Ant script, 292 application setup accessing code and dependencies, 437 installing database, 437 installing OJB tables, 438 installing tables, ... http://superindex.apress.com/ validatorAction parameter class holds metadata for validation rule, 276 ValidatorForm class and @struts Validator tags, 310 org.apache.validator package, 275 ValidatorUtil...

Ngày tải lên: 12/08/2014, 22:22

... user drags, user changes data Graphics Intensive   Browser ↔ App Server ↔ Data Source Users are manipulating and entering data Are Complex  Pages hold many more controls and data than pageoriented ... Web Standards AJAX is based on the following web standards: JavaScript XML HTML CSS DOM The web standards used in AJAX are well defined, and supported by all major browsers AJAX applications are ... Tipping Point  All of this has made rich internet apps reach its tipping point—where adoption spreads rapidly and dramatically Real-Life Examples of AJAX apps         • Google maps >...

Ngày tải lên: 24/10/2014, 14:55

... auto-complete feature; saving the actual information will be handled in a later chapter Have a look at the following example, which integrates an auto-complete feature and a pop-up form using Ajax Pay attention ... being able to create and maintain a single code base for an online application If you were to create a desktop application and then deploy a patch for a bug fix, the user must either reinstall ... such as Flickr and Gmail have created rich Ajax applications 6676CH01.qxd 9/27/06 2:48 PM Page CHAPTER ■ INTRODUCING AJAX Ajax Defined Ajax, as stated previously, stands for Asynchronous JavaScript...

Ngày tải lên: 15/11/2012, 14:19