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  • optimistic locking batch update

    - by Priit
    How to use optimistic locking with batch updates? I am using SimpleJdbcTemplate and for single row I can build update sql that increments version column value and includes version in WHERE clause. Unfortunately te result int[] updated = simpleJdbcTemplate.batchUpdate does not contain rowcounts when using oracle driver. All elements are -2 indicating unknown rowcount. Is there some other, more performant way of doing this than executing all updates individually? These batches contain an average of 5 items (only) but may be up to 250.

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  • Strange behaviour with GregorianCalendar

    - by Spark
    I just encountered a strange behaviour with the GregorianCalendar class, and I was wondering if I really was doing something bad. This only appends when the initialization date's month has an actualMaximum bigger than the month I'm going to set the calendar to. Here is the example code : // today is 2010/05/31 GregorianCalendar cal = new GregorianCalendar(); cal.set(Calendar.YEAR, 2010); cal.set(Calendar.MONTH, 1); // FEBRUARY cal.set(Calendar.DAY_OF_MONTH, cal.getActualMaximum(Calendar.DAY_OF_MONTH)); cal.set(Calendar.HOUR_OF_DAY, cal.getActualMaximum(Calendar.HOUR_OF_DAY)); cal.set(Calendar.MINUTE, cal.getActualMaximum(Calendar.MINUTE)); cal.set(Calendar.SECOND, cal.getActualMaximum(Calendar.SECOND)); cal.set(Calendar.MILLISECOND, cal.getActualMaximum(Calendar.MILLISECOND)); return cal.getTime(); // => 2010/03/03, wtf I know the problem is caused by the fact that the calendar initialization date is a 31 day month ( may ), which mess with the month set to february (28 days). The fix is easy ( just set day_of_month to 1 before setting year and month ), but I was wondering is this really was the wanted behaviour. Any thoughts ?

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  • Table header is not shown

    - by Vivien
    My error is that the table headers of my two tables are not shown. Right now I am setting the header with new JTable(data, columnNames). Here is an example which shows, my problem: public class Test extends JFrame { private static final long serialVersionUID = -4682396888922360841L; private JMenuBar menuBar; private JMenu mAbout; private JMenu mMain; private JTabbedPane tabbedPane; public SettingsTab settings = new SettingsTab(); private void addMenuBar() { menuBar = new JMenuBar(); mMain = new JMenu("Main"); mAbout = new JMenu("About"); menuBar.add(mMain); menuBar.add(mAbout); setJMenuBar(menuBar); } public void createTabBar() { tabbedPane = new JTabbedPane(JTabbedPane.TOP); tabbedPane.addTab("Settings", settings.createLayout()); add(tabbedPane); tabbedPane.setTabLayoutPolicy(JTabbedPane.SCROLL_TAB_LAYOUT); } private void makeLayout() { setTitle("Test"); setLayout(new BorderLayout()); setPreferredSize(new Dimension(1000, 500)); addMenuBar(); createTabBar(); setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); pack(); setVisible(true); } public void start() { javax.swing.SwingUtilities.invokeLater(new Runnable() { public void run() { makeLayout(); } }); } public static void main(String[] args) { Test gui = new Test(); gui.start(); } public class SettingsTab extends JPanel { public JScrollPane createLayout() { JPanel panel = new JPanel(new MigLayout("")); JScrollPane sp = new JScrollPane(panel); sp.setVerticalScrollBarPolicy(ScrollPaneConstants.VERTICAL_SCROLLBAR_ALWAYS); panel.add(table1(), "growx, wrap"); panel.add(Box.createRigidArea(new Dimension(0,10))); panel.add(table2()); // panel.add(Box.createRigidArea(new Dimension(0,10))); return sp; } public JPanel table1() { JPanel panel1 = new JPanel(); String[] columnNames = {"First Name", "Last Name"}; Object[][] data = { {"Kathy", "Smith"}, {"John", "Doe"}, {"Sue", "Black"}, {"Jane", "White"}, {"Joe", "Brown"}, {"John", "Doe"}, {"Sue", "Black"}, {"Jane", "White"}, {"Joe", "Brown"} }; final JTable table = new JTable(data, columnNames); tableProperties(table); panel1.add(table); panel1.setLayout(new BoxLayout(panel1, BoxLayout.Y_AXIS)); return panel1; } public JPanel table2() { JPanel panel1 = new JPanel(); String[] columnNames = {"First Name", "Last Name"}; Object[][] data = { {"Kathy", "Smith"}, {"John", "Doe"}, {"Sue", "Black"}, {"Jane", "White"}, {"Joe", "Brown"}, {"John", "Doe"}, {"Sue", "Black"}, {"Jane", "White"}, {"Joe", "Brown"} }; final JTable table = new JTable(data, columnNames); table.setPreferredScrollableViewportSize(new Dimension(500, 70)); table.setFillsViewportHeight(true); tableProperties(table); panel1.add(table); panel1.setLayout(new BoxLayout(panel1, BoxLayout.Y_AXIS)); return panel1; } public void tableProperties(JTable table) { table.setAutoResizeMode(JTable.AUTO_RESIZE_ALL_COLUMNS); table.repaint(); table.revalidate(); } } } Any recommendations what I am doing wrong?

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  • Deploying CXF web service in weblogic 10.

    - by Rig Veda
    Earlier I used to create a war file out of web service and manually deploy it in weblogic. But now (somehow) weblogic doesn't recognize the web-service. Though the earlier jars continue to work. The WSDL's in both the cases are same. Any help would be welcome. But my question is how does weblogic find the web-service. Is it the WSDL or soemthing else?

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  • Spring bean creation via deserialization

    - by mdma
    Spring has many different ways of creating beans, but is it possible to create a bean by deserializing a resource? My application has a number of Components, and each manipulates a certain type of data. During test, the data object is instantiated directly and set directly on the component, e.g. component.setData(someDataObject). At runtime, the data is available as a serialized object and read in from the serialized stream by the component. Rather than having each component explicitly deserialize it's data from the stream, it would be more consistent and flexible to have Spring deserialize the data object from a resource. Is there a DeserializerBeanFactory or something similar?

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  • Problem regarding listShuttle component in richFaces ?

    - by Hari
    I am a newbee for Richfaces components, When i am using the <rich:listShuttle> the Arraylist specified in the targetValue is now getting updated with the latest data? Kindly help MyJSF File <a4j:region> <rich:listShuttle sourceValue="#{bean.selectItems}" id="one" targetValue="#{bean.selectItemsone}" var="items" listsHeight="150" sourceListWidth="130" targetListWidth="130" sourceCaptionLabel="Intial Items" targetCaptionLabel="Selected Items" converter="Listconverter"> <rich:column> <h:outputText value="#{items.value}"></h:outputText> </rich:column> </rich:listShuttle> </a4j:region> <a4j:region> <a4j:commandButton value="Submit" action="#{bean.action}" /> </a4j:region> My Managed Bean enter code here private List<String> selectedData; private List<BeanItems> selectItems; private List<BeanItems> selectItemsone; public String action() { System.out.println(selectItems); System.out.println(selectItemsone); System.out.println("Select Item List"); Iterator<BeanItems> iterator = selectItems.iterator(); while (iterator.hasNext()) { BeanItems item = (BeanItems) iterator.next(); System.out.println(item.getValue()); } System.out.println("/nSelect Item one list "); Iterator<BeanItems> iterator2 = selectItemsone.iterator(); while (iterator2.hasNext()) { BeanItems item = (BeanItems) iterator2.next(); System.out.println(item.getValue()); } return ""; } public void setSelectedData(List<String> selectedData) { this.selectedData = selectedData; } public List<String> getSelectedData() { return selectedData; } /** * @return the selectItems */ public List<BeanItems> getSelectItems() { if (selectItems == null) { selectItems = new ArrayList<BeanItems>(); selectItems.add(new BeanItems("value4", "label4")); selectItems.add(new BeanItems("value5", "label5")); selectItems.add(new BeanItems("value6", "label6")); selectItems.add(new BeanItems("value7", "label7")); selectItems.add(new BeanItems("value8", "label8")); selectItems.add(new BeanItems("value9", "label9")); selectItems.add(new BeanItems("value10", "label10")); } return selectItems; } /** * @return the selectItemsone */ public List<BeanItems> getSelectItemsone() { if (selectItemsone == null) { selectItemsone = new ArrayList<BeanItems>(); selectItemsone.add(new BeanItems("value1", "label1")); selectItemsone.add(new BeanItems("value2", "label2")); selectItemsone.add(new BeanItems("value3", "label3")); } return selectItemsone; } My Converter Class enter code here public Object getAsObject(FacesContext context, UIComponent component,String value) { int index = value.indexOf(':'); return new BeanItems(value.substring(0, index), value.substring(index + 1)); } public String getAsString(FacesContext context, UIComponent component,Object value) { BeanItems beanItems = (BeanItems) value; return beanItems.getValue() + ":" + beanItems.getData(); } My BeanItems Class enter code here private String data; //Getter & setter private String value; //Getter & setter public BeanItems() { } public BeanItems(String value, String data) { this.value = value; this.data = data; } public int hashCode() { final int prime = 31; int result = 1; result = prime * result + ((data == null) ? 0 : data.hashCode()); result = prime * result + ((value == null) ? 0 : value.hashCode()); return result; } public boolean equals(Object obj) { if (this == obj) return true; if (obj == null) return false; if (getClass() != obj.getClass()) return false; final BeanItems other = (BeanItems) obj; if (data == null) { if (other.data != null) return false; } else if (!data.equals(other.data)) return false; if (value == null) { if (other.value != null) return false; } else if (!value.equals(other.value)) return false; return true; }

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  • Youtube video download URL

    - by Snigger
    Hi Before this I could download Youtube videos in my application by URLs like this: http://www.youtube.com/get_video?video_id=g1SADcP5g1o&t=vjVQa1PpcFPdtzEqgjY9XznEG3_WlkhS1xMugBP5eJ8= But currently this doesn't work (at least in most of tries) How can I get video download URL? Thanks

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  • Get Criteria by associationPath

    - by niklassaers
    Hi guys, Every so often, I get a "org.hibernate.QueryException: duplicate association path: myAssociation". This is because the complex criteria I'm working with can define the same path in many places. I'd love to do something like Criteria association = myCriteria.getAssociation("wax"); if(association == null) association = myCriteria.createCriteria("wax"); Is there any such way that I can check if an association is already in place? Cheers Nik

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  • Printing with an Eclipse RCP program

    - by Raven
    Hi, I am looking for a good, standard way to generate "output" in my RCP programm and print it. This should work as it works on Windows, Mac OS and Linux with the standard print dialog. I am aware of the Birt project, but I could not find any hints about how to implement it within a RCP programm and how to invoke the standard print dialog and how to pass the Birt generated report to the printer. Happy for all hints.

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  • XSL-stylesheet URI using JAX-WS and Glassfish v3.

    - by Tony
    Hi there. I'm trying to use XSL-stylesheets in order to transform some generated XML-data to HTML-output. The architecture that I'm using is as follows: [Client Side] Web-Browser = [Server Side: Glassfish v3] JSP-pages - Web-Services. My web service generates some XML-data, then I want to format it with XSL-stylesheet, pass the result to JSP-page and show to user. I'm using JAXP for XSL-transformations and I want to create a javax.xml.transform.stream.StreamSource object with XSL-file stream for the javax.xml.transform.Transformer object, but I'm having a difficulty with specifying the path/URL for the XSL-file. So the question is: where should I put my XSL-stylesheets in a project and how should I access them from code? I'm using Glassfish v3 and NetBeans 6.8. Thanks.

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  • What happens to my PriorityQueue if my Comparator throws an exception while it's busy bubbling up or

    - by nieldw
    Hi, I'm trying order pairs of integers ascendantly where a pair is considered less than another pair if both its entries are strictly less than those of the other pair, and larger than the other pair if both its entries are strictly larger than those of the other pair. All other cases are considered incomparable. They way I want to solve this is by defining a Comparator that implements the above, but will throw an exception for incomparable cases, and provide that to a PriorityQueue. Of course, while inserting a pair the priority queue does several comparisons while bubbling the new entry up to its correct position in the heap, and many of these will be comparable. But it may happen during the bubbling process that a pair is encountered with which this new pair is incomparable, and an exception will be thrown. If this happens, what will be the state of the PriorityQueue? Will the pair I was trying to insert sit in the heap at the last position it was in before the exception was thrown? If I use the PriorityQueue's remove(Object o) method, will the PriorityQueue be restored to a consistent state? Thanks

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  • Replacing ORM schema without dropping the entire data

    - by Udi
    Hey, I'm using OpenJPA as a JPA provider. Is there a way in which I can recreate the database tables (When an entity changes) without dropping the entire data? When an entity changes, I drop and create every table in the store, and obviously lose the data within. Is there a tool or product to keep the data somehow? Thanks, Udi

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  • problem with JMF !

    - by Razan
    Hi.. I have windows vista OS.. I Installed JMF to work with it.. but it seems I'm having some conflicts between Sound and JMF.. because after I installed JMF my projects that use Sound.. midi.. sequences.. are giving exceptions that they don't have some sound classes and so.. and when I removed JMF every thing went OK !! so what I'm gonna do?

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  • How do I write JPA QL statements that hints to the runtime to use the DEFAULT value ?

    - by Jacques René Mesrine
    I have a table like so: mysql> show create table foo; CREATE TABLE foo ( network bigint NOT NULL, activeDate datetime NULL default '0000-00-00 00:00:00', ... ) In the domain object, FooVO the activeDate member is annotated as Temporal. If I don't set activeDate to a valid Date instance, a new record is inserted with NULLs. I want the default value to take effect if I don't set the activeDate member. Thanks.

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  • Is it a good way to close a thread?

    - by Roman
    I have a short version of the question: I start a thread like that: counter.start();, where counter is a thread. At the point when I want to stop the thread I do that: counter.interrupt() In my thread I periodically do this check: Thread.interrupted(). If it gives true I return from the thread and, as a consequence, it stops. And here are some details, if needed: If you need more details, they are here. From the invent dispatch thread I start a counter thread in this way: public static void start() { SwingUtilities.invokeLater(new Runnable() { public void run() { showGUI(); counter.start(); } }); } where the thread is defined like that: public static Thread counter = new Thread() { public void run() { for (int i=4; i>0; i=i-1) { updateGUI(i,label); try {Thread.sleep(1000);} catch(InterruptedException e) {}; } // The time for the partner selection is over. SwingUtilities.invokeLater(new Runnable() { public void run() { frame.remove(partnerSelectionPanel); frame.add(selectionFinishedPanel); frame.invalidate(); frame.validate(); } }); } }; The thread performs countdown in the "first" window (it shows home much time left). If time limit is over, the thread close the "first" window and generate a new one. I want to modify my thread in the following way: public static Thread counter = new Thread() { public void run() { for (int i=4; i>0; i=i-1) { if (!Thread.interrupted()) { updateGUI(i,label); } else { return; } try {Thread.sleep(1000);} catch(InterruptedException e) {}; } // The time for the partner selection is over. if (!Thread.interrupted()) { SwingUtilities.invokeLater(new Runnable() { public void run() { frame.remove(partnerSelectionPanel); frame.add(selectionFinishedPanel); frame.invalidate(); frame.validate(); } }); } else { return; } } };

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  • In an ExpandableListView, how can I show one additional line at the end of the child results?

    - by fiXedd
    I have created a custom ExpandableListAdapter and everything works properly. What I'd like to be able to do is in each of the groups add a different type of child to the end. I have tried adding 1 to the getChildrenCount() number and then testing isLastChild in the getChildView() method, but that doesn't seem to work. If a group has three children what I have working looks like this: Group NormalChild NormalChild NormalChild But I'd really like something like this: Group NormalChild NormalChild NormalChild AlternateChild The idea being that the AlternateChild could be a link to more info about the group. Any Ideas? EDIT: ListView has addFooterView() which will allow you to add a footer to a whole ListView... wonder how to add them to the ExpandableListView's children, or if it's even possible

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  • Spring 3 MVC - how to turn a form into a query string?

    - by caerphilly
    I have a simple Spring form that gets bound to a form object on post. The http POST handler does some work, and then needs to redirect to a new URL, passing the form data as querystring parameters. So, assuming I have a form backing object with properties "param1" and "param2", I want to build a string that looks something like this: redirect:/app/new/page?param1=value;param2=value Now, Spring will automatically bind values FROM a querystring or a form post into my form object, but I want to GENERATE a querystring with values taken from the form object. Obviously it's trivial to do this manually but since I'm going to have lots of different form backing objects, is there some built-in facility in Spring to generate a query string from a form object, suitable for building into a URL? Thanks.

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  • Why encodeXxx methods in UIComponent accept FacesContext parameter?

    - by Roman
    I haven't ever before created custom component in jsf so I've noticed it only now that methods like encodeBegin(), encodeEnd() etc accept FacesContext parameter. FacesContext instance can usually be received with FacesContext.getCurrentInstance(). So, I wonder whether these methods have FacesContext parameter just for convenience or some different objects can be passed there (maybe from external resources..). If the latter is possible then could you give an example pls.

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