The JProfiler plugin of my Eclipse IDE (Eclipse 3.5) is configured to work with JProfiler 6.x which is installed on my machine. I'd like to configure my Eclipse to work with JProfiler 4.x which is also installed on my machine. How can I do it through Eclipse UI? Tried to find this option in Run --> 'Profile Configuration' but couldn't ...
Trying to get an understanding on how the RMI is working (I have a simple application that uses RMI and seems to work just fine). My question is : What happens when an rmi call is made? What happens on the way from an rmi client to an rmi server? ...
hi, i am looking for best aproach from perfomance point of view , to show Resultset on webpage partially , lets say by 10 item per page and if user want to see more result, he pressing "next" btn . i think (probablly wrong) it should be new request to the Server when "Next" button is pressed ?? currentlly i trying to learn Java,GWT ...
Hi, I am creating a request string which hast bo be formatted the following way: http://staging.myproject.com?tags=tag1,tag2,tag3 There is an EditText dialog on the form where the user writes the tags. The user however can write the tags in the EditText whatever way he wants, for example using commas: tag1, tag2, tag3 or tag1,tag2,tag...
I have an Order class that has a list of OrderTransactions and I mapped it with a one-to-many Hibernate mapping like so: @OneToMany(targetEntity = OrderTransaction.class, cascade = CascadeType.ALL) public List<OrderTransaction> getOrderTransactions() { return orderTransactions; } These Order's also have a field orderStatus that ar...
Hi I have created many annotation in my life and now came to strange case that i need this annotation to do and dont think it is supported by Java at all. Please someone tell me that i am right or wrong. Here is my annotation : @Retention(RetentionPolicy.RUNTIME) @Target(ElementType.FIELD) public @interface DetailsField { public ...
When there is nothing to implement in the marker interfaces like Serializable . . what is the use of implementing it? ...
My Java program does text extraction on RTF files using the RTFEditorKit. Some of the RTF files contain cyrillic characters (Russian), and depending on the RTF version, the extracted text is either okay or contains gibberish. When it's gibberish, I can use this to get normal text: String text = ... // extracted text String decodedText ...
Hi, I am trying to use a combination of wildcards in the type of the receiver and in the type of an argument to a method in Java. The context is that of defining a container. Now, the type Container should not admit insertions whatsoever, since this type does not specify the type of the contained objects. However, if the underlying data...
Currently I am working on new App Engine application. Unfortunately it seems that my application uses to lot of resources even for relatively small user number. So I need to determine its bottle necks and optimize them. ...
I have to get the message structure of a protobuf message transfered to me without the message's definition. Using UnknownFieldSet methods, I was able to get a string representation of the message as below: 1: "a" 2: { 3:"b" 4:"c" } What data structure does field 2 represent ? Using UnknownFieldSet.Field.getGroupList i was able ...
Hi, I have this code: package math; import java.io.IOException; import java.util.Scanner; public class Main { public static void main(String[] args) throws IOException { System.out.println("Hi, I will beat Java's Math.sqrt(double) method"); System.out.println("Both ways of calculation will be done"); S...
Is there a way to convert the string from a text field to a double in j2me? And what is the name of the string that comes out of the text field? ...
I am writing a screen scraping app that reads out various pages and extracts the data. I'm using the SAXParserFactory go get a SAXParser which in turn gets me an XMLReader. I have configured the Factory like this: spf = SAXParserFactory.newInstance(); spf.setValidating(false); spf.setFeature("http://xml.org/sax/features/validation", fal...
I am not working on an Eclipse plug-in project; however, I use an external library that generates an instance of org.eclipse.jdt.core.dom.CompilationUnit. Is there a way to generate Java bytecode from it? Some searching revealed that CompilationUnit's are typically built by registering a custom builder for the Eclipse project, then lett...
code is below: <select name="merTransactionTypeId" class="cbox" multiple> <!-- <option value="0" <%=request.getParameter("merTransactionTypeId")!=null?"0".equalsIgnoreCase(request.getParameter("merTransactionTypeId"))?"selected":"":""%>>All</option> --> <option value="2" <%=request.getParameter("merTransactionTypeId")!=null?"2...
To the moment I know that compass may handle this work. But indexing with compass looks pretty expensive. Is there any lighter alternatives? ...
I'm trying to figure out the popularity of scala and how many SO users actually use it in the workplace? Here are some scala links ...
Is it possible to save images directly from the webcam of my system to a web server in Java? Maybe it can directly passed to an URL address and can be GET at the server or anything else. ...
I have a perm gen memory leak, that I know. Profiling using jvisualvm shows that when doing hot deployment (e.g. stop and start an application without killing the JVM, in tomcat, WebSphere, WebLogic etc) - the PermGen space is constantly increasing. After reading, using jhat, and other advanced tools I realized that I probably have a re...