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• Communication between EJB and Flash possible?

  - by Nitesh Panchal

  Hello, Is it possible to call my ejbs from Flash actionscript? If yes, can anybody give me any link or example to accomplish the same? Also if my ejbs are returning List how will flash come to know about this class? Thanks in advance :)

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• Difference in Auditing and Logging?

  - by GK

  I have been coming across these two words more often but i didn't see much difference in these? I mean want to know are they used interchangeably or there are some differences in those two? Thanks.

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• System.exit in servlet

  - by vaibhav

  What would happen if someone writes System.exit() in a servlet would the server or the application crash?

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• How to unit-test a Wicket component with AbstractAjaxTimerBehavior?

  - by Juha Syrjälä

  I have a Wicket panel that has AbstractAjaxTimeBehavior, that I'd like to unit test. How can I trigger a ajax event during the unit test that end up calling AbstractAjaxTimeBehavior's .onTimer(AjaxRequestTarget target) method? behavior = new AbstractAjaxTimerBehavior(Duration.seconds(pollingPeriodInSeconds)) { protected void onTimer(AjaxRequestTarget target) { // how to unit test this? } } add(behavior);

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• to get columns from Excel files using Apache POI??

  - by posdef

  Hi, In order to do some statistical analysis I need to extract values in a column of an Excel sheet. I have been using the Apache POI package to read from Excel files, and it works fine when one needs to iterate over rows. However I couldn't find anything about getting columns neither in the API (link text) nor through google searching. As I need to get max and min values of different columns and generate random numbers using these values, so without picking up individual columns, the only other option is to iterate over rows and columns to get the values and compare one by one, which doesn't sound all that time-efficient. Any ideas on how to tackle this problem? Thanks,

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• Avoid Spring ApllicationContext instanciation

  - by Ceddoc

  I use Spring 3 to make a simple configuration. I have an XML file called PropertyBeans.xml like that : <bean id="propertyBean" class="com.myapp.PropertyBean"> <property name="rootDirLogPath" value="C:\Users\dede" /> </bean> I have the bean which match this XML and then I want to use this bean with the value injected. Actually I have : ApplicationContext context = new ClassPathXmlApplicationContext("AppPropertyBeans.xml"); PropertyBean obj = (PropertyBean) context.getBean("propertyBean"); String rootDirLogPath = obj.getRootDirLogPath(); This works great but I want to know if there's a way to avoid the instantiation of ApplicationContext at each time I want to use a bean. I've heard about BeanFactory is that a good idea? Which are the others solutions? In other words: Am I supposed to called this Application context instanciation in every Controller in spring MVC?

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• How can I make properties in properties files mandatory in Spring?

  - by Paulo Guedes

  I have an ApplicationContext.xml file with the following node: <context:property-placeholder location="classpath:hibernate.properties, classpath:pathConfiguration.properties" /> It specifies that both properties files will be used by my application. Inside pathConfiguration.properties, some paths are defined, such as: PATH_ERROR=/xxx/yyy/error PATH_SUCCESS=/xxx/yyy/success A PathConfiguration bean has setters for each path. The problem is: when some of those mandatory paths are not defined, no error is thrown. How and where should I handle this problem?

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• Redirected wikipedia request

  - by Le_Coeur

  Hi people, i need to write a program, that can redirect's http://localhost:8080 to en.wikipedia.org, it seems to be easy, but i have some problems(only with wikipedia with another sites works good). I make url to wikipedia: URL url = new URL("http", "en.wikipedia.org", 80, "/wiki"); than URLConnection, extract headers, and when i want connection.getInputStream(), i received message 404 Not Found. So i have tried some hack for host header, because in this way host header is localhost:8080, therefor i have tried to change host header to wikipedia, and it works, but after request in browser http://localhost:8080 wikipedia opens, but url in browser changes to en.wikipedia.org, but i want proceed with localhost :)

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• Killing Mysql processes staying in sleep command.

  - by Shino88

  Hey I am connecting a MYSQL database through hibernate and i seem to have processes that are not being killed after they are finished in the session. I have called flush and close on each session but when i check the server the last processes are still there with a sleep command. This is a new problem which i am having and was not the case yesterday. Is there any way i can ensure the killng of theses processes when i am done with a session. Below is an example of one of my classes. public JSONObject check() { //creates a new session needed to add elements to a database Session session = null; //holds the result of the check in the database JSONObject check = new JSONObject(); try{ //creates a new session needed to add elements to a database SessionFactory sessionFactory = new Configuration().configure().buildSessionFactory(); session = sessionFactory.openSession(); if (justusername){ //query created to select a username from user table String hquery = "Select username from User user Where username = ? "; //query created Query query = session.createQuery(hquery); //sets the username of the query the values JSONObject contents query.setString(0, username); // executes query and adds username string variable String user = (String) query.uniqueResult(); //checks to see if result is found (null if not found) if (user == null) { //adds false to Jobject if not found check.put("indatabase", "false"); } else { check.put("indatabase", "true"); } //adds check to Jobject to say just to check username check.put("justusername", true); } else { //query created to select a username and password from user table String hquery = "Select username from User user Where username = :user and password = :pass "; Query query = session.createQuery(hquery); query.setString("user", username); query.setString("pass", password); String user = (String) query.uniqueResult(); if(user ==null) { check.put("indatabase", false); } else { check.put("indatabase", true); } check.put("justusername", false); } }catch(Exception e){ System.out.println(e.getMessage()); //logg.log(Level.WARNING, " Exception", e.getMessage()); }finally{ // Actual contact insertion will happen at this step session.flush(); session.close(); } //returns Jobject return check; }

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• Formatting my String

  - by pringlesinn

  I need to write currency values like $35.40 (thirty five dollars and forty cents) and after that, i want to write some "****" so at the end it will be: thirty five dollars and forty cents********* in a maximun of 100 characters I've asked a question about something very likely but I couldn't understand the main command. String format = String.format("%%-%ds", 100); String valorPorExtenso = String.format(format, new Extenso(tituloTO.getValor()).toString()); What do I need to change on format to put *** at the end of my sentence? The way it is now it puts spaces.

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• URL of the website calling Restlet API

  - by Christopher McCann

  I have a Restlet API and the methods exposed on it are called by a PHP web app. This web app is accessible by several domain names and depending on the domain certain aspects of the app are changed (look and feel, content etc). Is there a way for Restlet to determine the URL of the calling web app? I have used getReference() but all I can get is the (internal) IP address of the calling web server (not the domain name). My only other alternative is to pass the URL of the web app with every request to the API but it would be cleaner if Restlet already knew. Thanks

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• Format attribute of <bean:write> tag in Struts

  - by Sushant Taneja

  Hello All, I am developing a web application using Struts 1.2.7 I want to print a list of integers using the tag. I searched and found that the format attribute is used to print the desired result but was unsuccessful. What should I pass as the value in format to print 3 digit integers/floating point numbers. The code sample is as follows: <logic:iterate name="intList" id="integer" > <bean:write name="integer" /> <logic:iterate /> Here intList is a List of int(s) passed as a request attribute to the jsp page under consideration.

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• Log information inside a JUnit Suite

  - by Alex Marinescu

  I'm currently trying to write inside a log file the total number of failed tests from a JUnite Suite. My testsuite is defined as follows: @RunWith(Suite.class) @SuiteClasses({Class1.class, Class2.class etc.}) public class SimpleTestSuite {} I tried to define a rule which would increase the total number of errors when a test fails, but apparently my rule is never called. @Rule public MethodRule logWatchRule = new TestWatchman() { public void failed(Throwable e, FrameworkMethod method) { errors += 1; } public void succeeded(FrameworkMethod method) { } }; Any ideas on what I should to do to achieve this behaviour?

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• Using HeapDumpOnOutOfMemoryError parameter for heap dump for JBoss

  - by EdC

  I was told I can add the -XX:+HeapDumpOnOutOfMemoryError parameter to my JVM start up options to my JBoss start up script to get a heap dump when we get an out of memory error in our application. I was wondering where this data gets dumped? Is it just to the console, or to some log file? If it's just to the console, what if I'm not logged into the unix server through the console? Thanks

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• business object and codelist

  - by feiroox

  Hi How to design a business object? I have a library which returns me an Object which have ten lists of other different objects. I need to store it into database all. List of objects are often like: class Item { private int id; private String name; private double point; } But the name is often the same. Like basic title of the product or code. Containing from 3 characters up to 70characters. Should I make conversion for every Object to: (or something similar) class ConvertedItem { private int id; private int code; private double point; } And have a separated table of codes ( I guess around 60). Or do not bother with duplicated stuff? It's not mission critical app. What would you do in my case? thanks in advance

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• Setting up Matcher for String phrase match in file

  - by randomCoder

  Having trouble figuring out how to match a phrase string to a phrase in file stream. The file I'm dealing with contains random words such as: 3 little pigs built houses and 1 little pig went to the market etc. for many lines Using "little pig" as my pattern and matcher.find() I can locate 2 matches: "little pig" and "little pigs". However, I only want it to match "little pig". What can I do? I thought about using matcher.lookingAt() but I wouldn't know how to set a proper region when I can't rely on the file string phrases I'm matching being on separate lines.

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• android.R.layout.simple_list_item_checked not toggling in ListView

  - by Mohit Deshpande

  Here is my custom adapter: ... @Override public View newView(Context context, Cursor cursor, ViewGroup parent) { LayoutInflater inflater = LayoutInflater.from(context); View v = inflater.inflate(android.R.layout.simple_list_item_checked, parent, false); return v; } ... Now this visually appears to be exactly what I needed. The problem is that I can't get toggle the checked state when I click on the listview item. Any solutions?

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• how do i round/trucate a number without using methods like math.round or %3f?

  - by user2923875

  So far I need to round a number that I inputted and get it to 3 decimal places without those methods. if(number !=(int)number){ number*=1000; number=(int)number; number=(double)number; number/=1000; System.out.println("-"+ number); } if(number ==(int)number){ System.out.println("-"+ number + "00"); } With that above, it will work for any input except the ones with 2 decimal places, like 12.34 . How do I make it work if i type 12.34 and displays 12.340?

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• Getting the class of an n dimensional array of an runtime supplied class name

  - by MeBigFatGuy

  Given a fully qualified class name, and a number of dimensions, i would like to get the Class name for this class. I believe i can do this like such public Class<?> getArrayClass(String className, int dimensions) throws ClassNotFoundException { Class<?> elementType = Class.forName(className); return Array.newInstance(elementType, new int[dimensions]).getClass(); } However this requires me to create an unneeded instance of the class. Is there a way to do this without creating the instance? It does not appear that Class.forName("[[[[Ljava/lang/String;") (or a algorithmically generated version) works correctly in all instances from various blog posts i've seen.

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• How to stop expanding an infinite SWT Tree upon pressing "*"

  - by Lóránt Pintér

  I have an SWT Tree in my application that contains an infinite data structure. Upon expanding an item, I generate its children. On Windows though, users can press "*", triggering an "expand all descendants" action, and my application hangs. There are two acceptable behaviors for me when the user presses "*": Expand all children of the selected element, but only to the next level Do nothing In either case, I will still need to be able to expand items as deep as required (by clicking on the [+] icon, or by pressing "+"), so limiting the tree depth is not a solution. Is there another way that I can achieve either of the above without modifying SWT classes?

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• TextField Listener

  - by coubeatczech

  Hi, there's a swing JTextField, and I want to add a listener, so whenever the users types a single letter, there's an event. There's a ValueChanged event in scala api, but I don't get it what's it's peer. So which one Listener should I use? KeyListener and implement reasonably just one method?

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• Disposing a dialog in touch devices in lwuit

  - by MANISH

  I am displaying a dialog when a user touches the screen and want the dialog to dispose when the user touches anywhere outside the dialog.i have set setDisposeWhenPointerOutOfBounds() to true though by default it is...n hav written the following code in pointerReleased() event but whenever the user touches the screen outside of dialog the dialog disposes but not without executing the code that shud be executed only wen the x,y are within the dialog....plz help me out....ne1... public void pointerReleased(int x, int y) { dispose(); if (contains(x, y)) { actionCommand((cmds[l.getSelectedIndex()])); } }

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• Use PermGen space or roll-my-own intern method?

  - by Adamski

  I am writing a Codec to process messages sent over TCP using a bespoke wire protocol. During the decode process I create a number of Strings, BigDecimals and dates. The client-server access patterns mean that it is common for the client to issue a request and then decode thousands of response messages, which results in a large number of duplicate Strings, BigDecimals, etc. Therefore I have created an InternPool<T> class allowing me to intern each class of object. Internally, the pool uses a WeakHashMap<T, WeakReferemce<T>>. For example: InternPool<BigDecimal> pool = new InternPool<BigDecimal>(); ... // Read BigDecimal from in buffer and then intern. BigDecimal quantity = pool.intern(readBigDecimal(in)); My question: I am using InternPool for BigDecimal but should I consider also using it for String instead of String's intern() method, which I believe uses PermGen space? What is the advantage of using PermGen space?

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• Rounding up milliseconds when printing with Joda Time

  - by RoToRa

  I'm implementing a count-down using Joda Time. I only need a display accuracy of seconds. However when printing the time, the seconds are displayed as full seconds, so when the count down reaches, for example, 900ms, then "0" seconds is printed, but as a count-down it would make more sense to display "1" second, until the time actually reaches 0ms. Example: void printDuration(Duration d) { System.out.println( d.toPeriod(PeriodType.time()).toString( new PeriodFormatterBuilder().printZeroAlways().appendSeconds().toFormatter() ) ); } printDuration(new Duration(5000)); // Prints "5" => OK printDuration(new Duration(4900)); // Prints "4" => need "5" printDuration(new Duration(1000)); // Prints "1" => OK printDuration(new Duration(900)); // Prints "0" => need "1" printDuration(new Duration(0)); // Prints "0" => OK Basically I need to the seconds to be display rounded up from milliseconds and not rounded down. Is there a way to achieve this with Joda without needing to write my own formatter?

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• Message Sent time incorrect using javax mail

  - by sword101

  greetings all i have a problem that when sending an email from the server to the client using javax mail and set the sentDate to message.setSentDate(new Date()); the email is sent in the server time and the client receive the email immediately with time 5 hours ago ???? how to fix this to send and receive in correct timing ?

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