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  • Include multiple jars with classpathentry

    - by ripper234
    I have an eclipse's .classpath file that looks like this: <?xml version="1.0" encoding="UTF-8"?> <classpath> <classpathentry kind="src" path="src"/> <classpathentry kind="src" path="test"/> <classpathentry kind="con" path="org.eclipse.jdt.launching.JRE_CONTAINER"/> <classpathentry kind="output" path="bin"/> <classpathentry kind="lib" path="/libraries/jee/servlet-api.jar"/> <classpathentry kind="lib" path="/libraries/junit/junit-4.6.jar"/> <classpathentry kind="lib" path="/libraries/log4j/log4j-1.2.15.jar"/> </classpath> I'd like to add a whole directory of jars to the classpath - I like eclipse (or more precisely, our ant-based build process that uses .classpath format) to know several jars that reside in a single directory, without specifying them directly. How can I do that?

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  • How to create a datastore.Text object out of an array of dynamically created Strings?

    - by Adrogans
    I am creating a Google App Engine server for a project where I receive a large quantity of data via an HTTP POST request. The data is separated into lines, with 200 characters per line. The number of lines can go into the hundreds, so 10's of thousands of characters total. What I want to do is concatenate all of those lines into a single Text object, since Strings have a maximum length of 500 characters but the Text object can be as large as 1MB. Here is what I thought of so far: public void doPost(HttpServletRequest req, HttpServletResponse resp) { ... String[] audioSampleData = new String[numberOfLines]; for (int i = 0; i < numberOfLines; i++) { audioSampleData[i] = req.getReader().readLine(); } com.google.appengine.api.datastore.Text textAudioSampleData = new Text(audioSampleData[0] + audioSampleData[1] + ...); ... } But as you can see, I don't know how to do this without knowing the number of lines before-hand. Is there a way for me to iterate through the String indexes within the Text constructor? I can't seem to find anything on that. Of note is that the Text object can't be modified after being created, and it must have a String as parameter for the constructor. (Documentation here) Is there any way to this? I need all of the data in the String array in one Text object. Many Thanks!

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  • Browser compatibility; Before or after uploading website to server?

    - by Camran
    I am on the stage where I need to make my website cross-browser compatible. I need tips on how to get started. I have developed my website on firefox, so it works great with firefox. I guess I have to download a couple of versions of all major browsers now, right? Then just test each browser one by one? Should I do this before uploading the entire website onto a server or afterwards? All tips and SW which makes this easier is appreciated. BTW, it is a classifieds website using MySql, Solr, PHP, js etc... Thanks

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  • J2ME polish problems when running on the phones

    - by Reza Hasht
    I built an application with j2me polish,it works well on emulator but after installing on phones, I have some basic problems: At first why the size of application is big(in my case 1.5 mb),is there any way to decrease polish apps size(my resources are just 300 kb). For installing it on the phone, I copy the jar file from dist folder; Is my way correct? Important!:arabic words in some SonyEricsson phones are seprated and reversed, I searched the web, but I just found some topics about LWUIT and I coulden't solve it on polish!

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  • Efficiently fill resultset in object model

    - by Zeeshan
    Hi, I have an object model whose structure is Dashboard  List of panels     List of containers       List of widgets If i get whole dashboard, with panels + containers + widgets, from Database then multiple I/O requires I want to get it in one I/O .For this i prepared a query which gives me this resultset. DASHBOARDID   PANELID  CONTAINERID  WIDGETID 13                          11                    5              2 13                          11                    5              3 13                          11                    6              4 13                          11                    6              5 13                          12                    7              6 13                          12                    7              7 13                          12                    8              8 13                          12                    8              9 Using list datastructure this model is able to be filled but it takes time i want to efficiently fill this resultset in above object model. is there nay way ?

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  • out-of-the-box way to get an idmap from hibernate for a given entity?

    - by Geert-Jan
    Over and over again I notive myself getting a list from hibernate, and the first thing next is put it in an idmap like: List<House> entities = s.createCriteria(House.class).list(); Map<String,House> entitymap = new HashMap<String,House>(); for(TA_entity e:entities){ entitymap.put(e.getId(), e); } Is there a way to get this directly out of hibenerate? afterall Hibernate is familiar with the id.

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  • removing comma from string array

    - by sarah
    Hi, I want to execute a query like select ID from "xyz_DB"."test" where user in ('a','b') so the corresponding code is like String s="("; for(String user:selUsers){ s+= " ' " + user + " ', "; } s+=")"; Select ID from test where userId in s; The following code is forming the value of s as ('a','b',) i want to remove the comma after the end of array how to do this ?

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  • What is the security risk of object reflection?

    - by Legend
    So after a few hours of workaround the limitation of Reflection being currently disabled on the Google App Engine, I was wondering if someone could help me understand why object reflection can be a threat. Is it because I can inspect the private variables of a class or are there any other deeper reasons?

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  • Renaming the argument name in JAX-WS

    - by user182944
    I created a web service using JAX-WS in RSA 7.5 and Websphere 7 using bottom-up approach. When I open the WSDL in SOAP UI, then the arguments section is appearing like this: <!--Optional--> <arg0> <empID>?</empId> </arg0> <!--Optional--> <arg1> <empName>?</empName> </arg1> <!--Optional--> <arg2> <empAddress>?</empAddress> </arg2> <!--Optional--> <arg3> <empCountry>?</empCountry> </arg3> The service method takes the above 4 elements as the parameters to return the employee details. 1) I want to rename this arg0, arg1, and so on with some valid names. 2) I want to remove the <!--optional--> present above the arg tags. (For removing the <!--optional--> from elements name, I used @XMLElement(required=true)). But I am not sure where exactly to use this annotation in this case :( Please help. Regards,

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  • Is this Leftist Tree piece of code from Wikipedia correct?

    - by they changed my name
    Link public Node merge(Node x, Node y) { if(x == null) return y; if(y == null) return x; // if this was a max height biased leftist tree, then the // next line would be: if(x.element < y.element) if(x.element.compareTo(y.element) > 0) { // x.element > y.element Node temp = x; x = y; y = temp; } x.rightChild = merge(x.rightChild, y); if(x.leftChild == null) { // left child doesn't exist, so move right child to the left side x.leftChild = x.rightChild; x.rightChild = null; x.s = 1; } else { // left child does exist, so compare s-values if(x.leftChild.s < x.rightChild.s) { Node temp = x.leftChild; x.leftChild = x.rightChild; x.rightChild = temp; } // since we know the right child has the lower s-value, we can just // add one to its s-value x.s = x.rightChild.s + 1; } return x; } What makes me ask this question is: if(x.element.compareTo(y.element) > 0) { // x.element > y.element Node temp = x; x = y; y = temp; } Isn't that just not gonna work, since the references are only switched inside the method?

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  • Select SWT Library depending on OS

    - by phineas
    How do I ensure when I distribute a JAR-file that the proper SWT-library (either the windows, the linux or mac version) is loaded an ready to use? It would be very helpful because then you can do one export and your application can run on any platform like Swing apps usually do. Thanks a lot

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  • Cannot submit form when disabling JSF page

    - by Steve
    Simple submit button. <h:commandButton actionListener="#{regBean.findReg}" action="#{regBean.navigate}" value="Search" /> The form tag is displayed like so: <h:form onsubmit="this.disabled=true;busyProcess();return true;"> This is so if the submit button is pressed, the page shows a "busy" icon until request is processed. The problem is, the request is never submitted and it never reaches the backend. However, if I instead take out the "disabled" call like so: <h:form onsubmit="busyProcess();return true;"> Everything works. Any ideas?

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  • When should I define an hash code function for my types?

    - by devoured elysium
    Is there any other reason for implementing an hash code function for my types other than allowing for good use of hash tables? Let's say I am designing some types that I intend to use internally. I know that types are "internal" to the system, and I also know I will never use those types in hash tables. In spite of this, I decide I will have to redefine the equals() method. Theory says I should also redefine the hash code method, but I can't see any reason why, in this case, I should do it. Can anyone point me out any other reason? This question can be rephrased to : in which situations should we implement a hash code method in our types. PS : I am not asking how to implement one. I am asking when.

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  • Hibernate 1:M relationship ,row order, constant values table and concurrency

    - by EugeneP
    table A and B need to have 1:M relationship a and b are added during application runtime, so A created, then say 4 B's created. Each B instance has to come in order, so that I could later extract them in the same order as I added them. The app will be a web-app running on Tomcat, so 10 instances may work simultaneously. So my question are: 1) How to preserve inserting order, so that I could extract B instances that A references in the same order as I persisted them. That's tricky, because we add to a Collection and then it gets saved (am I right?). So, it depends on how Hibernate saves it, what if it changes the order in what we added instances? I've seen something like LIST instead of SET when describing relationships, is that what I need? 2) How to add a 3-rd column to B so that I could differentiate the instances, something like SEX(M,F,U) in B table. Do I need a special table, or there's and easy way to describe constants in Hibernate. What do you recommend? 3) Talking about concurrency, what methods do you recommend to use? There should be no collisions in the db and as you see, there might easily be some if rows are not inserted (PK added) right where it is invoked without delays ?

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  • Best practice for an application with GUI

    - by chronosphenomena
    Hi, I'm about to start an application which will have both console and GUI interfaces. What I wan't to achieve is COMPLETE decoupling of application logic from interface. In future, I may also add web interface, and I don't want to change anything in my application. Is there a good example (perhaps some open source project) where I can learn how this should be done properly.... also I'd appreciate advices/guidelines on how to do this. Thanks

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  • Project to learn J2EE technologies.

    - by Chandra
    Attended a 2 week j2EE course and learnt the concepts. Want to try in a simple project and wanted ideas on what that could be? PetStore or Small Business App are so boring... Anything interesting that can be done to learn the breadth but at the same time it not being a full fledged project?

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