... c:\jakarta-tomcat\classes;c:\jakarta-tomcat\lib\ant.jar;c:\jakarta-tomcat\lib\jaxp.jar;c:\jakarta-➥tomcat\lib\servlet.jar;c:\jakarta-tomcat\lib\parser.jar;c:\jakarta-tomcat\lib\we➥bserver.jar;c:\jakarta-tomcat\lib\jasper.jar;c:\jakarta-➥tomcat\lib\xalanservlet.jar;c:\jakarta-tomcat\lib\xerces.jar;c:\jakarta-➥tomcat\lib\xalanj1compat.jar;c:\jakarta-tomcat\lib\aaxalan.jar;c:\jdk1.3\lib\too➥ls.jar2001-05-23 ... CLASSPATH.Using CLASSPATH: c:\jakarta-tomcat\classes;c:\jakarta-tomcat\lib\ant.jar;c:\jakarta-tomcat\lib\jaxp.jar;c:\jakarta-➥tomcat\lib\servlet.jar;c:\jakarta-tomcat\lib\parser.jar;c:\jakarta-tomcat\lib\we➥bserver.jar;c:\jakarta-tomcat\lib\jasper.jar;c:\jakarta-➥tomcat\lib\xalanservlet.jar;c:\jakarta-tomcat\lib\xerces.jar;c:\jakarta-➥tomcat\lib\xalanj1compat.jar;c:\jakarta-tomcat\lib\aaxalan.jar;c:\jdk1.3\lib\too➥ls.jar2001-05-23 ... editor.Congratulations! You now have a new Web application installed. As the chess sayinggoes, “the rest is all a matter of details.”You have what you need: an example ofa Javaservlet calling a JSP page,...
... discussed and heralded in particular as a great benefit in connectinglegacy applications to modern Web-based applications.Within a Web application, passing even one parameter that contains XML data ... Data Flows in Web ApplicationsWe believe that passing XML data within a Web application will turn out to be asimportant as passing XML data between systems and applications.The latter use of XML ... database management systembecause handling chat data is an obvious job.We decided against that for several rea-sons. One is that we did not want to assume that all our readers are familiar...
... contents of the bonForumXML (a ForestHashtable) as a string.Now we decided to make it the input XML stream for the Xalan XSLT processor aspart of our TransformTagclass.Displaying the available ... is that that user then loses thecapability to again be a host of that chat. Having a dual role might be an acceptablefeature, if it worked. Otherwise, the user, in this case, should probably ... remove this watermark.1416.3 Displaying Chat Messagesdatabase grows. Our plan is to iterate only the message pointers that exist within a particular chat element in the XML data.We had to settle...
... Topic■Performing thread synchronization■Synchronizing the XML database■Finding the chat and actor status in Chat■ Rejoining existing chats■Starting a chat■Adding a host actor■ Adding a chat element08 ... “sessionMaxInactiveMinutes”,sessionMaxInactiveMinutes );}As a second example of request parameter handling, see how simply the age valueinput by a bonForum user is made available in the session ... to each JSP-produced page ofa bonForuminstance.The incoming request parameters are validated and made available to the Webapplication in whatever scope is appropriate.We will give two examples...
... If the actor was in the chat, always join it with the previous status; otherwise,warn and ask again.3. If the actor was in the chat, always join as a guest; otherwise, warn and ask again.08 ... database (now a ForestHashtable)nInitializes the XML database for use as a chat Web appnLoads XML files into a database using its methodsnDumps the content of the database as XML ina ... classes, one for Xalan-Java 1 and one for Xalan-Java 2.Simplifying greatly, here are the statements called by the TransformTagclass to getits XML database ina string:private static BonForumStore...
... containerinformation at JSP translation time about tags and the variables they use.These classesare TagAttributeInfo,TagData,TagExtraInfo,TagInfo,TagLibraryInfo, andVariableInfo.The ... will assume as it translates the tag thatthese variables are available as page attributes. Later, when we look at the translatedJava code for a Tag Handler instance, you can see where the value ... de.tarent.forum;import javax.servlet.jsp.tagext.*;public class BonForumTagExtraInfo extends TagExtraInfo {public VariableInfo[] getVariableInfo(TagData data) {return new VariableInfo[] {new VariableInfo(“output”,“String”,true,10...
... without using any tabsor spaces! Thankfully, that bug seems to be gone now—at least, while using the Xalan-Java 1 compatibility JAR or the Xalan-Java 2 JAR.10.8 Displaying the Available bonForumsWe ... system_executes_command.jsp. Note that if you have Xalan-Java-2,you can also set xalanVersionto Xalan Java 1, as long as the compatibility JAR fileis accessible, for example, as TOMCAT_HOME\lib\xalanj1compat.jar.Let’s ... twoclasses to encapsulate the steps required for either Xalan-Java 1or Xalan-Java 2.Theclasses are called Xalan1Transformerand Xalan2Transformer. Each has one methodcalled transform, which...
... this watermark.416Chapter 11 XML Data Storage Class: ForestHashtableattribute to a chat element.We will also try using it to allow a chat host to change therating ofa guest ina chat.WarningThe ... the pathNameHashtable(as an element this time)with a key that is a string containing the pathNamethat was just given as an example.Mapping User Choices to PathName KeysWe can now display ... bonForumcontains actors,actions, and thingsnodes. At initialization, one child of actors, called system, is added. A bonForum’sXML database also contains initially a list of links to other...
... previousstatus, else warn and ask again// 3. if actor was in it, always join as guest, else warnand ask again// All these choices can be modified reactorRestartingCurrentChat value// For ... {if(haveChatItem) {boolean actorIsHostInChat = false;boolean actorIsGuestInChat = false;boolean actorWillRejoinChat = false;// See if chatItem (i.e., subject+topic) exists already as a chat:chatNodeKeyKey ... getParameter(String name, int defaultValue){ int retval = defaultValue;String tmp = getParameter(name);if (tmp != null && tmp.trim() != “”){try {retval = Integer.parseInt(tmp);} catch...
... String naming this node* @param rootNodeAttributes String containing all attributesconcatenated (name=value name=value )* @param rootNodeContent String containing text content of node* @param ... now, caller is responsible for that!)** @param childNodeName String naming this node* @param childNodeAttributes String containing all attributesconcatenated (name=value name=value )* @param ... XML in a string.* @param inXSL String: URL, or XML string that contains"<xsl:stylesheet".* @param outDoc String: "print", "printNormalized",*...
... sees language primarily as a means for establishing and maintaining interpersonal relations and for performing social transactions between individuals. The target of language learning in this ... an integral part of the process of achieving the task goals; they are not being practised singly, ina vacuum.37“ language learning, and therefore language teaching, does not occur ina vacuum; ... integrating tasks within the context of learning and teaching. Findings of the study suggest task integration supports the emergence of language learning and teaching.8Prabhu (1987), one of...