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The Configuration Servlet The second example is taken from the world of hierarchical parts configurations This example displays a configuration of a complex piece of machinery This machinery is composed according to a hierarchical structure, in which each part may be broken down into a set of smaller parts, which themselves may be broken down into yet smaller parts Since most people can see only so many details at a time, almost all objects in the real world are broken down into such hierarchical structures Each level is manageable in its own right, and the observer can decide at which level the part(s) should be viewed For example, computer hardware is composed of the motherboard, the network card, the disk, and so on The motherboard is further broken down into the CPU, the memory chips, the controller, and so on Just like computer hardware, software is also composed of parts: modules, procedures, and functions Such a hierarchical view is not limited to information technology (IT)-related issues Everything from projects, to power plants, to aircraft, to cities practically everything is maintained in some hierarchical structure Such a breakdown is usually maintained in a database of some sort, and we, as programmers, are asked to provide a view of this configuration Obviously, we want to display this information as a hierarchy and the best way to do this is to use a tree widget Given some data model representing a hierarchical structure, we are asked to build a Web-enabled interface that will display the hierarchies as trees in a browser This will allow anyone having access to our Web site (and authorized to do so) to view the configurations in a convenient manner Since we need to provide this service from any browser, we will build an HTTP servlet to service these requests The HTTP servlet will receive the request, access the data in the database, and return some user interface to display the hierarchical information Before we begin, a couple of decisions need to be made What will the server model be This part is quite simple (especially after we've seen the title of this chapter) The best fit is an HTTP servlet (surprise, surprise) In this example, we will build a servlet that will accept GET requests Upon receiving such a request (along with a set of parameters required to identify the root of the configuration), the servlet will access the database and get the information regarding the entire tree It will then write this information to the output stream Next question: How should we write the information Should we write it as straight HTML That would be pretty ugly Maybe we can put it in an HTML table and indent the lines based on the depth in the tree That would be slightly better but not by much 375. .net upc-a reader . NET Barcode Reader Library | C# & VB. NET UPC-A Recognition ...
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How to scan and read UPC-A barcode image in . NET windows and web applications using Barcode Reader Component for . NET ; provide APIs for various . NET ... Downloaded from Digital Engineering Library @ McGraw-Hill (wwwdigitalengineeringlibrarycom) Copyright 2004 The McGraw-Hill Companies All rights reserved Any use is subject to the Terms of Use as given at the website highlighting at the summary level, you have to create the same conditions for the summary level cells word aflame upc lubbock, word pdf 417, data matrix code word placement, birt pdf 417, birt code 39, birt report barcode font .net upc-a reader UPC-A . NET Control - UPC-A barcode generator with free . NET ...
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The Universal Product Code ( UPC ) (redundantly: UPC code) is a barcode symbology that is .... read UPC -like labels with his ring wand. In addition to reading regular labels, he read the large two-page centerfold label in the proposal booklet. Actually, since we were asked to provide a dynamic user interface, we need some code to be passed to the browser so that the tree can be displayed and manipulated (that is, its nodes collapsed, opened, and so on) Our selection is therefore much narrower: we can either go with a combination of JavaScript and Dynamic HTML (DHTML) or with a Java applet Since the subject of this book is tightly coupled with Java technology, we'll opt for the latter Then comes the fun part Being lazy in nature, whenever we need to write some code, we always spend a little time on the Web looking for examples we can borrow from or even for code to buy After spending half an hour (isn't the Web great ), we come up with a list of 10 applets that perform precisely the tasks we need After spending a little more time comparing the available packages, we zoom in on a package called Advanced Tree Explorer, available at http://wwwjpoweredcom/tree This is a superb applet that is small, fast, pleasant to look at, and easy to use So we download it (or a 30-day evaluation version) and read the instructions, which takes less than 15 minutes, and we are ready to go Initializing the Servlet First, we build the servlet class and the init method of the servlet, as shown here: package bookwebspherechapter22; import javaxservlet*; import javaxservlethttp*; import javaio*; import javautil*; import javasql*; import javatext*; public class ConfigServlet extends HttpServlet { static ResourceBundle aBundle = null; static String serialFormat; static String nonSerialRootFormat; static String serialRootFormat; static String nonSerialFormat; static String bgImage = ""; static String codebase; static String fontString; public void init(ServletConfig config) throws ServletException { superinit(config); aBundle = ResourceBundlegetBundle("ConfigServlet"); serialFormat = aBundlegetString("serialFormat"); nonSerialFormat = aBundlegetString("nonSerialFormat"); serialRootFormat = aBundlegetString("serialRootFormat"); nonSerialRootFormat = 376 .net upc-a reader C#. NET UPC-A Barcode Reader /Scanner Library | How to Read ...
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Net is a port of ZXing, an open-source, multi-format 1D/2D barcode image processing library ... With the Barcode Reader SDK, you can decode barcodes from. This is also an alternative method for Cognos versions 83 and above as well Here s how to add conditional highlighting to a report in versions of Cognos previous to 83: 1 Navigate to the Condition Explorer and then click the Variables link You need to add the variable condition that is passed to make conditional highlighting work In this example, the work area has changed to display the Condition Explorer work area, as shown next: is intelligent (IFID); ie, it contains a microcomputer and can make many of the decisions otherwise made at the central console This minimizes traf c on the communication link and results in what is called distributed intelligence The general arrangement of an IFID is shown in Fig 863 The most important activity of the IFID is signal 2 In the Insertable Objects pane, double-click the String Variable object The Report Expression window displays 3 In the Expression Definition pane, type the appropriate expression for the conditions you are setting In this example, we use the following expression that returns a string value when one of the criteria is met: aBundlegetString("nonSerialRootFormat"); codebase = aBundlegetString("codebase"); fontString = aBundlegetString("font"); bgImage = aBundlegetString("bgImage"); DBConnectioninit( aBundlegetString("dburl"), aBundlegetString("dbuser"), aBundlegetString("dbpass")); try { Connection conn = DBConnectiongetConnection(); CallableStatement stmt = connprepareCall( "alter YYYY'" ); stmtexecute(); stmtclose(); } catch (Throwable ex) { exprintStackTrace(); } } session set NLS_DATE_FORMAT = 'DD MON Case when then when then when then end [Query1][Gross Profit %] >= 50 'Excellent' [Query1][Gross Profit %] >= 25 and [Query1][Gross Profit %] < 50 'Average' [Query1][Gross Profit %] < 25 'Poor' Downloaded from Digital Engineering Library @ McGraw-Hill (wwwdigitalengineeringlibrarycom) Copyright 2004 The McGraw-Hill Companies All rights reserved Any use is subject to the Terms of Use as given at the website uwp generate barcode, barcode in asp net core, c# .net core barcode generator, .net core barcode generator
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