Comet and Reverse Ajax: The Next Generation Ajax 2.0 by By (author) Phil McCarthy By (author) Dave Crane

By By (author) Phil McCarthy By (author) Dave Crane

Essentially the most easy legislation of an internet program is that the customer, no longer the server, needs to start up any verbal exchange among the 2. there are various common-use instances the place, preferably, the server wish to seek advice from the client-dashboards and tracking apps, chat rooms and different collaborations, and development reviews on long-running procedures. Comet (a.k.a. opposite Ajax) presents a mechanism fo...

Show description

Read Online or Download Comet and Reverse Ajax: The Next Generation Ajax 2.0 (FirstPress) (Paperback) - Common PDF

Similar web-design books

Flash XML applications: use AS2 and AS3 to create photo galleries, menus, and databases

. .. maintaining with the newest top practices in Flash and database layout is a tough strategy. Joachim Schnier brings those practices jointly in a concise, and straightforward to stick to demeanour in Flash XMLApplications. a must have within the net 2. zero period. - Erik V. Pohovich, grasp internet Developer, New net TechnologiesUsing XML to engage with a database is a must have ability for someone that wishes to carry dynamic content material .

Web Design Confidential: The whole truth on the state of web design

Drawing on survey information from over 5,400 net designers from worldwide, and the insights and reviews of numerous layout veterans, Amanda Hackwith unlocks the door and sheds gentle on the internet layout in website design personal. have you puzzled in the event that your hourly cost is simply too low or too excessive?

Extra info for Comet and Reverse Ajax: The Next Generation Ajax 2.0 (FirstPress) (Paperback) - Common

Sample text

DwrServlet debug true dwr-invoker /dwr/* As well as mapping the DwrServlet to the /dwr/ URL, we’ve also enabled DWR’s debug mode, which provides a very useful snapshot of the classes and methods that DWR is remoting and is invaluable during development. xml. Clicking a class name takes you to a test page that looks like the one shown in Figure 4-1.

Add("{'id':'"+id+"', 'deleted':true}") } return entries } You retrieve all the words in the data model using findAll(). You iterate through each word, refreshing it against the database and comparing it with the latest known version. If you encounter a newer version of a word, you build up some JSON code to capture the latest data. You also keep a list of 44 Comet and Reverse Ajax words that you think you know about in the knownIds variable. You remove IDs from this list as you encounter them, so that you can flag any remaining IDs as no longer being in the database.

Comet and Reverse Ajax 31 Chapter 3: Introducing Comet In Chapter 2, you looked at polling and piggybacking techniques to see how far you could get with creating an interactive collaborative application. Along the way, you found yourself juggling timeout periods, responsiveness, and server/network loads, without reaching a satisfactory balance between the various factors. Using Comet techniques, you can simplify matters. In this section, you’re going to look at the basic building blocks of Comet and implement those building blocks from scratch yourself within a standard web application framework (Groovy on Grails).

Download PDF sample

Rated 4.07 of 5 – based on 42 votes