There's a lot one can find about this googling a bit but I haven't quite found a workable solution to this problem. Basically what I have is a big CLOB on a particular class that I want to have loaded on demand. The naive way to do this would be: class MyType { // ... @Basic(fetch=FetchType.LAZY) @Lob public String getBlob() ...
i develop java app in 2 different computers ( same souce-code) , which have different jdk versions. is there a way to specify jdk version in the source-code so that ide (e.g netbeans) compile the same source-code on both machines. To be clearer: jdk5: jdbc-interface doesnt support some methods (e.g NClob, XML...) which are available in ...
I have some code in Java as follows: private Object addVertex(String label, int posX, int posY) { Vertex newVertex = new Vertex(); this.getModel().beginUpdate(); try { newVertex = insertVertex(parent, null, label, posX, posY, 80, 30); } finally { this.getModel().endUpdate(); } return newVertex; } That code wont work because...
I have this code down and this working fine from command line ... But when I put this in applet I get following error com.sun.star.lang.IllegalArgumentException at com.sun.star.comp.bridgefactory.BridgeFactory.createBridge(BridgeFactory.java:158) at com.sun.star.comp.urlresolver.UrlResolver$_UrlResolver.resolve(UrlResolver.jav...
Hi, I'm trying to process dynamic attributes in Jsp, but I'm getting display nothing in response. Here's the JSP code: <%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %> <%@ taglib prefix="mine" uri="DiceFunctions" %> <html><body> <mine:advice suggest="yo haa haa" > </mine:advice> </body></html> The TLD file, whic...
I always have trouble with Java layouts, but the main thing bugging me now is that when the content changes, in particular changes it sizes, it's not laid out again properly. Take the example below: package layouttest; import java.awt.event.ActionEvent; import java.awt.event.ActionListener; import javax.swing.JButton; import javax.swi...
Subject to this question, asks it all:How effective is executeBatch method? Is there a performance benchmark, that says.. 'if you have 1000 records to be inserted, using a executeBatch instead of executeUpdate saves you x amount of database cycles?' Or Is this just a convention? EDIT: Here is what I am working with: a DB2 V 8.1 hoste...
While cyclomatic complexity is a worthwhile metric, I tend to find it to be a poor tool for identifying difficult to maintain code. In particular, I tend to find it just highlights certain types of code (e.g. parsers) and misses difficult recursion, threading and coupling problems as well as many of the anti-patterns that have been defi...
I'm trying to do something to track down the problem, but there's not much I can do until paintContents, and everything there looks good through my debugger, but I'll double check to make sure I didn't miss anything. At the very least, I would like to know how to silently handle these (such as catching them and being able to output a mea...
I was asked by my boss to create a module for calculating reverse compound. The question is: if I want to achieve $1.000.000,00 in 24 months with interest rate 18%/year (or 1.5%/month). how much money do I have to save every month? I searched on the internet, but found nothing except people referring to the Excel formula. Do you know ...
In Eclipse, can I find which methods override the method declaration on focus now? Scenario: When I'm viewing a method in a base class (which interface), I would like to know where the method is overriden (or implemented). Now I just make the method final and see where I get the errors, but it is not perfect. Note: I know about class ...
Hi, What is the right way to convert raw array of bytes into Image in Java SE. array consist of bytes, where each three bytes represent one pixel, with each byte for corresponding RGB component. Can anybody suggest a code sample? Thanks, Mike ...
My program has a daily routine, similar to an alarm clock event. Say, when it's 2pm(The time is the system time in my pc), do something for me. What I want to do is to speed up the testing period(I don't really want to wait 4 days looking at the daily routine and check errors.) I read on wiki of Mock object, the writer DID mention alar...
Howdy, My cell phone provider offers a limited number of free text messages on their website. I frequently use the service although I hate constantly having a tab open in my browser. Does anyone know/point me in the right direction of how I could create a jar file/command line utility so I can fill out the appropriate forms on the sit...
Hi there, I am trying to profile my java application with JProbe. I am little confused with Snapshots and 'Set Recording Level' options. I am not able to understand the relation between them. Can somebody please take pain to explain me or point to any online articles which can clarify my confusion. Thank you very much, Chaitanya ...
I don't understand the difference between these methods. Here's what the JavaDoc says: setLine(String) = Line to split into several commandline arguments. setValue(String) = Sets a single commandline argument. My confusion is that I see them being used interchangeably in the code I'm updating. An example: Commandline comma...
Hi, I'm testing a simple DAO layer with mockito but I found a problem, basically a hard to test interface and I was wondering if you could give me some insight... This is the method I want to test: public Person getById(UserId id) { final Person person = new PersonImpl(); gateway.executeQuery(GET_SQL + id.getUserId(), new Resu...
I'm going through some old code and found the following: public class MyClass implements Cloneable { public Object clone() { Object o = null; try { o = super.clone(); } catch (CloneNotSupportedException ex) { } return o; } } I've read the javadocs on Object.clone(), and I'm tr...
Say you're working on a Java project in Eclipse and you're looking at a import statement like: import com.somefirm.somepackage.AClass; and the classpath for the project has a million and one .jars on it. How do you determine where the import is coming from? ...
hello good people.I'm still learning what hibernate can do and this time i'm trying something that seems not to be working. i have 2 tables users and contacts.as you can guess contacts hold the relationship by have user_id as foreign key. here are snippet of the 2 mapping files. this first is from users.hbm.xml <set name="contactsdetail...