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Download Ajax in Oracle JDeveloper by Deepak Vohra PDF

By Deepak Vohra

Asynchronous JavaScript and XML (Ajax) is an internet method used to move facts among a browser and server asynchronously with out posting the net web page to the server. "Asynchronously" signifies that the processing of the internet web page keeps whereas the Ajax request is distributed to the server and a reaction is got from the server. the net web page, or section(s) of the net web page, is refreshed with the Ajax reaction with out reposting the net web page. Ajax has the subsequent benefits over non-Ajax net applications.

- diminished reaction time and lowered server load, because the whole web content isn't really reposted.

- decreased bandwidth of net purposes as purely information is transferred and the HTML structure is utilized within the browser.

- Separation of information, structure and magnificence.

The publication covers internet seek and RSS Feed with Ajax in addition to shape validation with Ajax frameworks for Java, JSP, JSF, and Hypertext Preprocessor. It discusses utilizing Ajax in Oracle JDeveloper and is IDE dependent. JDeveloper has the next benefits over Eclipse IDE.

- JDeveloper 11g offers an built-in JavaScript Editor for Ajax/Web improvement.

- It additionally offers a Hypertext Preprocessor extension.

- JDeveloper has a integrated help for JSF and for JDBC.

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Additional info for Ajax in Oracle JDeveloper

Sample text

The function registered with the onComplete property gets invoked with an argument containing the XMLHttpRequest object and an argument containing the HTTP response header. Request( url, { method: 'get', parameters: pars, asynchronous: true, onComplete: showResponse }); } function showResponse(xmlHttpRequest, responseHeader) {//Process Http response and update input form } The showResponse function retrieves the XML response from the server and updates the input form. Request class is listed below.

Failure. failure element is used if the Ajax call fails. The url parameter specifies the url to which the request is sent. Request class. Request options, an insertion class may be specified with insertion property. Bottom(adds HTML as the last child of the element). Updater is evalScripts, which indicates if scripts shall be evaluated when the response is received. Default value of evalScripts is false. Updater to update a form element, userid, with the response HTML. Updater class and is used to update a form element periodically.

4 Configuring Prototype in AJAX Web Application 51 Fig. jsp. jsp. js” type=”text/javascript”> In the Ajax application version without the prototype library, the catalogId field is retrieved with get getElementById() function and the value is retrieved with value attribute. value; Retrieve the catalogId value with prototype function $F(). var catalogId=$F('catalogId'); 52 3 Less JavaScript with Prototype In the non-prototype version, the DOM elements are retrieved with getElementById() function.

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