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  • Spring @PostConstruct function in a @Repository called multiple times

    - by Seth
    I have a DAO that I'm trying to inject into a couple different places: @Repository public class FooDAO { @Autowired private HibernateManager sessionFactory; @PostConstruct public void doSomeDatabaseStuff() throws DataAccessException { ... } } And my application-context.xml is a fairly simple context:component-scan: <beans xmlns="http://www.springframework.org/schema/beans" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:context="http://www.springframework.org/schema/context" xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-2.0.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-2.5.xsd" default-init-method="init" default-destroy-method="destroy"> <context:component-scan base-package="top.level"/> </beans> The DAO is accessed from a couple servlets in my application server through @Autowired properties. As far as I understand, anything annotated with @Repository should default to being a singleton and thus doSomeDatabaseStuff() should only be called once (as is my intention). The problem is that I'm seeing doSomeDatabaseStuff() called multiple times. What's going on here? Have I set something up incorrectly? I'm using spring 3.0.0. Thanks for the help.

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  • The woes of (sometimes) storing "date only" in datetimes

    - by Heinzi
    We have two fields from and to (of type datetime), where the user can store the begin time and the end time of a business trip, e.g.: From: 2010-04-14 09:00 To: 2010-04-16 16:30 So, the duration of the trip is 2 days and 7.5 hours. Often, the exact times are not known in advance, so the user enters the dates without a time: From: 2010-04-14 To: 2010-04-16 Internally, this is stored as 2010-04-14 00:00 and 2010-04-16 00:00, since that's what most modern class libraries (e.g. .net) and databases (e.g. SQL Server) do when you store a "date only" in a datetime structure. Usually, this makes perfect sense. However, when entering 2010-04-16 as the to date, the user clearly did not mean 2010-04-16 00:00. Instead, the user meant 2010-04-16 24:00, i.e., calculating the duration of the trip should output 3 days, not 2 days. I can think of a few (more or less ugly) workarounds for this problem (add "23:59" in the UI layer of the to field if the user did not enter a time component; add a special "dates are full days" Boolean field; store "2010-04-17 00:00" in the DB but display "2010-04-16 24:00" to the user if the time component is "00:00"; ...), all having advantages and disadvantages. Since I assume that this is a fairly common problem, I was wondering: Is there a "standard" best-practice way of solving it? If there isn't, have you experienced a similar requirement, how did you solve it and what were the pros/cons of that solution?

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  • cakephp: Custom Authentication Object authenticate not called

    - by Kristoffer Darj
    The method authenticate in a Custom Authentication Object is never called. Is this a glicth or am I missing something? I don't get anything in the log, I'm just redirected to users/login (or the one I specified) CakeVersion: 2.4.1 <?php //My custom Auth Class //Path: app/Controller/Component/Auth/HashAuthenticate.php App::uses('BaseAuthenticate', 'Controller/Component/Auth'); class HashAuthenticate extends BaseAuthenticate { public function authenticate(CakeRequest $request, CakeResponse $response) { //Seems to not be called CakeLog::write('authenticate'); debug($this); die('gaah'); } } If I add the method getUser() (or unauthenticated() ), those gets called however so at least I know that cake finds the class and so on. It just skips the authenticate-method. The AppController looks like this class AppController extends Controller { public $helpers = array('Html', 'Form', 'Session'); public $components = array('Auth' => array( 'authenticate' => array('Hash'), 'authorize' => array('Controller'), ) ); } I found a similar question here: CakePHP 2.x custom "Authentication adapter &quot;LdapAuthorize&quot; was not found but there the issue was typos.

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  • Create a Desktop Shortcut to an existing FOLDER using WiX

    - by Sach
    I have the need to create a Desktop Shortcut to an existing FOLDER (NOT to a file) using Wix. To elaborate more, my installer program has a CustomAction program written using C# associated with it. This CustomAction program creates a folder named "BSS" of which the path is selected by user. C:\ProgramData\MT\BSS Now I need to place a Desktop Shortcut to this folder using WiX. However, I encounter a problem since this folder does not have a folder structure within WiX. The closest code I could find was the following. <Directory Id="DesktopFolder" Name="Desktop"/> <Directory Id="CommonAppDataFolder" Name="ProgramDataFolder"/> <Component Id="ComponentBSStrageShortcut" Guid="{8436995c-2e76-4030-b92d-c6b4bc243c43}"> <Shortcut Id="ShortcutBSStrageShortcut" Directory="DesktopFolder" WorkingDirectory="APPLICATIONFOLDER" Target="[CommonAppDataFolder]/MTK/BSStrage" Name="BSStrage" Show="normal"/> <RegistryValue Action="write" Key="SOFTWARE/MTK/BackStreet" Root="HKCU" Type="string" KeyPath="yes" Value="ApplicationFolderName"/> </Component> When I build the installer this way, it actually creates a shortcut on Desktop. However, WiX seems to think that BSStrage is a file/application so it places a shortcut to an imaginary application called BSStrage in the location C:\ProgramData\MT. But double clicking on it dosen't help as there is no program that can be used to open it. Obviously I'm doing it wrong here. Can someone please help me with this, so as how to overcome this problem. Note that I'm extremely new to Wix (it's been only two days) and has never worked with it before. Any code sample would be of great help.

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  • Flex - Flash Builder Design View not showing embedded fonts correctly

    - by Crusader
    Tools: Air 2, Flex SDK 4.1, Flash Builder, Halo component set (NO Spark being used at all) Fonts work perfectly when running the appliction, but not in design view. This effectively makes design view WORTHLESS because it's impossible to properly position components or labels without knowing what the true size is (it changes depending on font...) ... CSS included in root component like so: <fx:Style source="style.css"/> CSS file: /* CSS file */ @namespace mx "library://ns.adobe.com/flex/mx"; global { font-family:Segoe; font-size:14; color:#FFFFFF; } mx|Application, mx|VBox, mx|HBox, mx|Canvas { font-family:Segoe; background-color:#660000; border-color:#222277; color:#FFFFFF; } mx|Button { font-family:Segoe; fill-colors:#660000, #660000, #660000, #660000; color:#FFFFFF; } .... Interestingly (or buggily?), when I try pasting the style tag into a subcomponent (lower than the top level container), I get a bunch of warnings in the subcomponent editor view stating that CSS type selectors are not supported in.. (all the components in the style sheet). Yet, they do work when the application is executed. Huh? This is how I'm embedding the fonts in the root level container: [Embed(source="/assets/segoepr.ttf", fontName="Segoe", mimeType="application/x-font-truetype", embedAsCFF='false')] public static const font:Class; [Embed(source="/assets/segoeprb.ttf", fontName="Segoe", mimeType="application/x-font-truetype", fontWeight="bold", embedAsCFF='false')] public static const font2:Class; So, is there a way to get embedded fonts to work in design view or what?

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  • Managing common components with Fossil CVS

    - by Larry Lustig
    I'm a Fossil (and CVS configuration novice) attempting to create and manage a set of distributed Fossil repositories for a Delphi project. I have the following directory tree: Projects Some Project Delphi Components LookupListView Some Client Some Project For Client Some Other Project For Client Source Code Project Resources Project Database I am setting up Fossil version control in order to version and share Projects\Some Client\Some Other Project For Client\Source Code, which contains Delphi 2010 source for a database project. This project makes use of Projects\Delphi Components\LookupListView which is a Delphi component. I need this code to be included in the versioning system for my project. I will, in theory, need to include it in other Fossil repositories in the future, as well. If I create my Fossil repository at the Source Code or Some Other Project For Client level, I cannot add any code above that level to my repository. What is the proper way to deal with this? The two solutions that occur to me are 1) Creating a separate repository for LookupListView and make sure that everyone who uses a repository for a project that references it "knows" that they must also get the current version of this project as well. This seems to defeat the purpose of being able to obtain a complete, current version of the project with a single checkout. The problem is magnified because there are other common component dependencies in this project. 2) Establishing my Fossil repository in the Projects directory, so I can check in files from various subfolders. This seems to me to involve an awful lot of extra path-typing when doing adds, and also to impose my directory structure (Some Client\Some Other Project For Client\Source) on the other users of the repository -- in this case, the actual client. Any suggestions appreciated.

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  • automated email downloading and treading similar messages

    - by Michael
    Okay here it is : I have built an c# console app that downloads email, save attachments , and stores the subject, from, to, body to a MS SQL Database. I use aspNetPOP3 Component to do this. I have build a front end ASP.NET application to search and view the messages. Works great. Next Steps (this is where I need help ): Now I want my users (of the asp.net app) to reply to this message send the email to the originator, and tread any additional replies back and forth on from that original message(like basecamp). This would allow my end user not to have to log-in to a system, they just continue using email (our users can as well). The question is what should I use to determine if messages are related? Subject line I think is a bad approach. I believe the best method i've seen so far is way basecamp does it, but I'm not sure how that is done, here is a real example of the reply to address from a basecamp email (I've changed the host name): [email protected] Basecamp obviously are prefixing the pre-pending a tracking id to the email address, however , when I try this with my mail service, it's rejected. Is this the best approach, is there a way I can accomplish this, is there a better approach, or even a better email component tool? Thanks, Mike

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  • Positioning / Scrolling problem with Flex popup.

    - by user284163
    Hi all, I'm trying to work out a specific problem I'm having with positioning in Flex using the PopUpManager. Basically I'm wanting to create a popup which will scroll with the parent container - this is necessary because the parent container is large and if the user's browser window isn't large enough (this will be the case the majority of the time) - they will have to use the scrollbar of the container to scroll down. The problem is that the popup is positioned relative to another component, and it needs to stay by that component. <?xml version="1.0" encoding="utf-8"?> <mx:Application xmlns:mx="http://www.adobe.com/2006/mxml" layout="absolute"> <mx:Script> <![CDATA[ import mx.core.UITextField; import mx.containers.TitleWindow; import mx.managers.PopUpManager; private function clickeroo(event:MouseEvent):void { var popup:TitleWindow = new TitleWindow(); popup.width = 250; popup.height = 300; popup.title = "Example"; var tf:UITextField = new UITextField(); tf.wordWrap = true; tf.width = popup.width - 30; tf.text = "This window stays put and doesn't scroll when the hbox is scrolled (even with using the hbox as parent in the addPopUp method), I need the popup to be local to the HBox."; popup.addChild(tf); PopUpManager.addPopUp(popup, hbox, false); PopUpManager.centerPopUp(popup); } ]]> </mx:Script> <mx:HBox width="100%" height="2000" id="hbox"> <mx:Button label="Click Me" click="clickeroo(event)"/> </mx:HBox> </mx:Application> Could anyone give me any pointers in the right direction? Thanks.

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  • Custom Java ListCellRenderer - Can't click JCheckBox

    - by Spencer
    Made a custom ListCellRenderer: import java.awt.Component; import javax.swing.JCheckBox; import javax.swing.JLabel; import javax.swing.JList; import javax.swing.JPanel; import javax.swing.ListCellRenderer; /** * * @author Spencer */ public class TaskRenderer implements ListCellRenderer { private Task task; private JPanel panel = new JPanel(); private JCheckBox checkbox = new JCheckBox(); private JLabel label = new JLabel(); public TaskRenderer() { panel.add(checkbox); panel.add(label); } public Component getListCellRendererComponent( JList list, Object value, int index, boolean isSelected, boolean cellHasFocus) { task = (Task) value; label.setText(task.getName()); return panel; } } Have a JList with each cell in it rendered using the above class, but the checkboxes in the panels for each cell cannot be clicked. Thought it had to do with it not getting focus. Any ideas? Thanks, Spencer

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  • error : java.lang.String cannot be cast to coldfusion.cfc.CFCBeanProxy anyone know about this ?

    - by faheem
    Hi does anyone know about this error I get when I try to insert a foreign key value in my entry entity using cf9 Hibernate ? java.lang.ClassCastException: java.lang.String cannot be cast to coldfusion.cfc.CFCBeanProxy Root cause :org.hibernate.HibernateException: java.lang.ClassCastException: java.lang.String cannot be cast to coldfusion.cfc.CFCBeanProxy Below is the code for my entity object and then for my user object.. Is there anything wrong with this ? entry.cfc /** * Entries Object */ component output="false" persistent="true"{ property name="entry_id" fieldType="id" generator="uuid"; property name="entryBody" ormType="text"; property name="title" notnull="true" type="string"; property name="time" fieldtype="timestamp"; property name="isCompleted" ormType="boolean" dbdefault="0" default="false"; property name="userID" fieldtype="many-to-one" fkcolumn="userID" cfc="user"; Entry function init() output=false{ return this; } } user.cfc /** * Users Object */ component output="false" persistent="true"{ property name="userID" fieldType="id" generator="uuid"; property name="firstName" notnull="true" type="string"; property name="lastName" notnull="true" type="string"; property name="password" notnull="true" type="string"; property name="userType" notnull="true" type="string"; //property name="entry" fieldtype="one-to-many" type="array" fkcolumn="userID" cfc="entry"; User function init() output=false{ return this; } }

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  • richfaces progressBar polling

    - by John
    Hi, I've got a progressBar component defined as the following on my webpage: <rich:modalPanel id="pb1Panel"> <rich:progressBar id="pb1" oncomplete="javascript:#{myBean.handleProgressEvent()} closeProgressModalPanel()" value="#{pb1Listener.percentageComplete}" label="#{pb1Listener.percentageComplete} %" minValue="1" maxValue="100" limitToList="true" timeout="3200" interval="1400" enabled="false"/> </rich:modalPanel> and a button: <a4j:commandButton id="actButton" value="action" action="#{myBean.performAction}" immediate="true" ajaxSingle="true" onclick="javascript:Richfaces.showModalPanel('pb1Panel');" reRender="pb1Panel"> <a4j:support event="onClick" value="#{rich:component('pb1')}.enable()" reRender="pb1" /> </a4j:commandButton> which doesn't work. However if I take out the .... enabled="false"/> .... from the progress bar, and the element from the button, everything seems to work just fine. Any suggestion why it's not working? I'm setting enabled="false" initially because I do not want the polling to start unless the button was clicked (to reduce unnecessary polling). The system is building on richfaces/seam. Thanks!

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  • WCF Certificates without Certificate Store

    - by Kane
    My team is developing a number of WPF plug-ins for a 3rd party thick client application. The WPF plug-ins use WCF to consume web services published by a number of TIBCO services. The thick client application maintains a separate central data store and uses a proprietary API to access the data store. The thick client and WPF plug-ins are due to be deployed onto 10,000 workstations. Our customer wants to keep the certificate used by the thick client in the central data store so that they don't need to worry about re-issuing the certificate (current re-issue cycle takes about 3 months) and also have the opportunity to authorise the use of the certificate. The proposed architecture offers a form of shared secret / authentication between the central data store and the TIBCO services. Whilst I don’t necessarily agree with the proposed architecture our team is not able to change it and must work with what’s been provided. Basically our client wants us to build into our WPF plug-ins a mechanism which retrieves the certificate from the central data store (which will be allowed or denied based on roles in that data store) into memory then use the certificate for creating the SSL connection to the TIBCO services. No use of the local machine's certificate store is allowed and the in memory version is to be discarded at the end of each session. So the question is does anyone know if it is possible to pass an in-memory certificate to a WCF (.NET 3.5) service for SSL transport level encryption? Note: I had asked a similar question (here) but have since deleted it and re-asked it with more information.

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  • Windows Forms Event Log

    - by blu
    I am writing to the event log from my Windows Forms application running on Windows 7 and am getting this message in the event log: The description for Event ID X from source Application cannot be found. Either the component that raises this event is not installed on your local computer or the installation is corrupted. You can install or repair the component on the local computer. If the event originated on another computer, the display information had to be saved with the event. The following information was included with the event: Exception Details the message resource is present but the message is not found in the string/message table My logging code is: public void Log(Exception exc) { EventLog.WriteEntry( "Application", exc.ToString(), EventLogEntryType.Error, 100); } My logging on Windows Forms is usually to a DB, but in this case decided to use the event log. I usually use the event log in ASP.NET applications, but those are on XP Pro locally and Windows Server 2003 on the web boxes. Is this a Windows 7 thing or a Windows Forms thing, and what should I do to fix this? Thanks.

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  • What could I add to this code to allow the cell height to dynamically change as I edit the JTextArea

    - by Dr. Plaguey
    The derived classes I am using public class TextAreaRenderer extends JTextArea implements TableCellRenderer { public TextAreaRenderer() { setLineWrap(true); setWrapStyleWord(true); } public Component getTableCellRendererComponent(JTable jTable, Object obj, boolean isSelected, boolean hasFocus, int row, int column) { setText((String)obj); int height_wanted = (int)getPreferredSize().getHeight() + 10; if (height_wanted != rootJTable.getRowHeight(row)) rootJTable.setRowHeight(row, height_wanted); return this; } } class TextEditor extends AbstractCellEditor implements TableCellEditor { protected JTextArea ta; String txt; public TextEditor() { ta = new JTextArea(); } //Implement the one CellEditor method that AbstractCellEditor doesn't. public Object getCellEditorValue() { return ta.getText(); } // Implement the one method defined by TableCellEditor. public Component getTableCellEditorComponent(javax.swing.JTable table, Object value,boolean isSelected, int row, int column) { txt = value.toString(); ta.setText(txt); ta.setLineWrap(true); return new JScrollPane(ta); } public boolean isCellEditable(EventObject anEvent) { return true; } } Set column renderer and editor rootJTable.getColumnModel().getColumn(1).setCellRenderer(new TextAreaRenderer()); rootJTable.getColumnModel().getColumn(1).setCellEditor(new TextEditor());

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  • WPF Image change source when button is disabled

    - by Taylor
    Hi, I'm trying to show a different image when the button is disabled. Should be easy with triggers, right?! For some reason, I have not been able to get the images to switch. I've tried setting triggers on both the image and button. What is wrong with what I have below? How can I change the image source when the button is enabled/disabled? Thanks! <Button x:Name="rleft" Command="{Binding Path=Operation}" CommandParameter="{x:Static vm:Ops.OpA}"> <Button.Content> <StackPanel> <Image Width="24" Height="24" RenderOptions.BitmapScalingMode="NearestNeighbor" SnapsToDevicePixels="True" Source="/MyAssembly;component/images/enabled.png"> <Image.Style> <Style> <Style.Triggers> <DataTrigger Binding="{Binding ElementName=rleft, Path=Button.IsEnabled}" Value="False"> <Setter Property="Image.Source" Value="/MyAssembly;component/images/disabled.png" /> </DataTrigger> </Style.Triggers> </Style> </Image.Style> </Image> </StackPanel> </Button.Content> </Button>

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  • WPF Designer has bug with parsing generic control with overrided property

    - by Ivan Laktyunkin
    I've created a generic lookless control with virtual property: public abstract class TestControlBase<TValue> : Control { public static readonly DependencyProperty ValueProperty; static TestControlBase() { ValueProperty = DependencyProperty.Register("Value", typeof(TValue), typeof(TestControlBase<TValue>)); } protected TestControlBase() { Focusable = false; Value = default(TValue); } public virtual TValue Value { get { return (TValue)GetValue(ValueProperty); } set { SetValue(ValueProperty, value); } } } Then I've made a control derived from it and overrided Value property: public class TestControl : TestControlBase<int> { public override int Value { get { return base.Value; } set { base.Value = value; } } } So I use it in a Window XAML: <TestControls:TestControl /> When I open window in designer all is OK, but when I put mouse cursor to this line, or to this control in designer I receive exception: Exception has been thrown by the target of an invocation. at System.RuntimeMethodHandle._InvokeMethodFast(Object target, Object[] arguments, SignatureStruct& sig, MethodAttributes methodAttributes, RuntimeTypeHandle typeOwner) at System.RuntimeMethodHandle.InvokeMethodFast(Object target, Object[] arguments, Signature sig, MethodAttributes methodAttributes, RuntimeTypeHandle typeOwner) at System.Reflection.RuntimeMethodInfo.Invoke(Object obj, BindingFlags invokeAttr, Binder binder, Object[] parameters, CultureInfo culture, Boolean skipVisibilityChecks) at System.Delegate.DynamicInvokeImpl(Object[] args) at System.Windows.Threading.ExceptionWrapper.InternalRealCall(Delegate callback, Object args, Boolean isSingleParameter) at System.Windows.Threading.ExceptionWrapper.TryCatchWhen(Object source, Delegate callback, Object args, Boolean isSingleParameter, Delegate catchHandler) Ambiguous match found. at System.RuntimeType.GetPropertyImpl(String name, BindingFlags bindingAttr, Binder binder, Type returnType, Type[] types, ParameterModifier[] modifiers) at System.Type.GetProperty(String name) at MS.Internal.ComponentModel.DependencyPropertyKind.get_IsDirect() at MS.Internal.ComponentModel.DependencyPropertyKind.get_IsAttached() at MS.Internal.ComponentModel.APCustomTypeDescriptor.GetProperties(Attribute[] attributes) at MS.Internal.ComponentModel.APCustomTypeDescriptor.GetProperties() at System.ComponentModel.TypeDescriptor.TypeDescriptionNode.DefaultExtendedTypeDescriptor.System.ComponentModel.ICustomTypeDescriptor.GetProperties() at System.ComponentModel.TypeDescriptor.GetPropertiesImpl(Object component, Attribute[] attributes, Boolean noCustomTypeDesc, Boolean noAttributes) at System.ComponentModel.TypeDescriptor.GetProperties(Object component) at MS.Internal.Model.ModelPropertyCollectionImpl.GetProperties(String propertyNameHint) at MS.Internal.Model.ModelPropertyCollectionImpl.<GetEnumerator>d__0.MoveNext() at MS.Internal.Designer.PropertyEditing.Model.ModelPropertyMerger.<GetFirstProperties>d__0.MoveNext() at MS.Internal.Designer.PropertyEditing.PropertyInspector.UpdateCategories(Selection selection) at MS.Internal.Designer.PropertyEditing.PropertyInspector.OnSelectionChangedIdle() Who know this problem? Please explain :) I have no ideas except that WPF Designer doesn't like generics. If I replace generics by Object all is OK.

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  • Full-text search error during full-text index population : Error Code '0x80092003'

    - by user360074
    Dear All, I have problem with Full-Text Search service in production environment. Each time I rebuild full-text catalog, there is no error in User Interface, but there is no data in Full-Text Catalog Item Count : 0 Catalog size : 0 MB OS : Windows Server 2003 R2 Standard Edition Service Pack2 SQL Server Version : Microsoft SQL Server 2005 - 9.00.1399.06 (Intel X86) Oct 14 2005 00:33:37 Copyright (c) 1988-2005 Microsoft Corporation Standard Edition on Windows NT 5.2 (Build 3790: Service Pack 2) It work on dev server (windows xp professional version 2002 service pack 3) but error on prod server (Windows Server 2003 R2 Standard Edition Service Pack2) This is error log. Scrawl Log: 2010-06-02 03:51:31.06 spid24s Informational: Full-text Full population initialized for table or indexed view '[test1].[dbo].[test]' (table or indexed view ID '37575172', database ID '9'). Population sub-tasks: 1. 2010-06-02 03:51:31.06 spid24s Error '0x80092003' occurred during full-text index population for table or indexed view '[test1].[dbo].[test]' (table or indexed view ID '37575172', database ID '9'), full-text key value 0x00000006. Attempt will be made to reindex it. 2010-06-02 03:51:31.06 spid24s The component 'MSFTE.DLL' reported error while indexing. Component path 'D:\Program Files\Microsoft SQL Server\MSSQL.1\MSSQL\Binn\MSFTE.DLL'. 2010-06-02 03:51:31.06 spid24s Error '0x80092003' occurred during full-text index population for table or indexed view '[test1].[dbo].[test]' (table or indexed view ID '37575172', database ID '9'), full-text key value 0x00000005. Attempt will be made to reindex it.

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  • Seperation of game- and rendering logic

    - by Qua
    What is the best way to seperate rendering code from the actually game engine/logic code? And is it even a good idea to seperate those? Let's assume we have a game object called Knight. The Knight has to be rendered on the screen for the user to see. We're now left with two choices. Either we give the Knight a Render/Draw method that we can call, or we create a renderer class that takes care of rendering all knights. In the scenario where the two is seperated the Knight should the knight still contain all the information needed to render him, or should this be seperated as well? In the last project we created we decided to let all the information required to render an object be stored inside the object itself, but we had a seperate component to actually read those informations and render the objects. The object would contain information such as size, rotation, scale, and which animation was currently playing and based on this the renderer object would compose the screen. Frameworks such as XNA seem to think joining the object and rendering is a good idea, but we're afraid to get tied up to a specific rendering framework, whereas building a seperate rendering component gives us more freedom to change framework at any given time.

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  • AStar in a specific case in C#

    - by KiTe
    Hello. To an intership, I have use the A* algorithm in the following case : the unit shape is a square of height and width of 1, we can travel from a zone represented by a rectangle from another, but we can't travel outside these predifined areas, we can go from a rectangle to another through a door, represented by a segment on corresponding square edge. Here are the 2 things I already did but which didn't satisfied my boss : 1 : I created the following classes : -a Door class which contains the location of the 2 separated squares and the door's orientation (top, left, bottom, right), -a Map class which contains a door list, a rectangle list representing the walkable areas and a 2D array representing the ground's squares (for additionnal infomations through an enumeration) - classes for the A* algorithm (node, AStar) 2 : -a MapCase class, which contains information about the case effect and doors through an enumeration (with [FLAGS] attribute set on, to be able to cummulate several information on each case) -a Map classes which only contains a 2D array of MapCase classes - the classes for the A* algorithm (still node an AStar). Since the 2 version is better than the first (less useless calculation, better map classes architecture), my boss is not still satisfied about my mapping classes architecture. The A* and node classes are good and easily mainainable, so I don't think I have to explain them deeper for now. So here is my asking : has somebody a good idea to implement the A* with the problem specification (rectangle walkable but with a square unit area, travelling through doors)? He said that a grid vision of the problem (so a 2D array) shouldn't be the correct way to solve the problem. I wish I've been clear while exposing my problem .. Thanks KiTe

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  • pooling with Windsor

    - by AlonEl
    I've tried out the pooling lifestyle with Windsor. Lets say I want multiple CustomerTasks to work with a pool of ILogger's. when i try resolving more times than maxPoolSize, new loggers keeps getting created. what am i missing and what exactly is the meaning of min and max pool size? the xml configuration i use is (demo code): <component id="customertasks" type="WindsorTest.CustomerTasks, WindsorTestCheck" lifestyle="transient" /> <component id="logger.console" service="WindsorTest.ILogger, WindsorTestCheck" type="WindsorTest.ConsoleLogger, WindsorTestCheck" lifestyle="pooled" initialPoolSize="2" maxPoolSize="5" /> Code is: public interface ILogger { void Log(string message); } public class ConsoleLogger : ILogger { private static int count = 0; public ConsoleLogger() { Console.WriteLine("Hello from constructor number:" + count); count++; } public void Log(string message) { Console.WriteLine(message); } } public class CustomerTasks { private readonly ILogger logger; public CustomerTasks(ILogger logger) { this.logger = logger; } public void SaveCustomer() { logger.Log("Saved customer"); } }

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  • how to update the table in sql database from a Paradox DB table using delphi

    - by Sreenath Krishnakumar
    I am doing a project in Delphi6 which enables the user to update the table in SQL server database ; if there is any changes in the table of Paradox DB. An update button has been created and whenever the user clicks it, all the changes made in the paradox db table have to be updated in the SQL server table. Only if there is any changes the table need to be updated else ; it should close automatically. For that I have created a table, "Schedule" ,both in Paradox DB and SQL server. But I am stuck with this Paradox DB thing. Which component can I drop in the form for connecting the table in Paradox DB ? For SQL server I used ado table component. For this Paradox also can I use that ? I am not a regular programmer so I am not well versed this Delphi6 also. So I am seeking a help for this. Can anybody give me an example coding also ?

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  • Draw LINE_STRIP with Unity

    - by Boozzz
    For a new project I am thinking about whether to use OpenGL or Unity3d. I have a bit of experience with OpenGL, but I am completely new to Unity. I already read through the Unity documentation and tutorials on the Unity Website. However, I could not find a way to draw a simple Line-Strip with Unity. In the following example (C#, OpenGL/SharpGL) I draw a round trajectory from a predifined point to an obstacle, which can be imagined as a divided circle with midpoint [cx,cy] and radius r. The position (x-y coordinates) of the obstacle is given by obst_x and obst_y. Question 1: How could I do the same with Unity? Question 2: In my new project, I will have to draw quite a lot of such geometric primitives. Does it make any sense to use Unity for those things? void drawCircle(float cx, float cy, float r, const float obst_x, const float obst_y) { float theta = 0.0f, pos_x, pos_y, dist; const float delta = 0.1; glBegin(GL_LINE_STRIP); while (theta < 180) { theta += delta; //get the current angle float x = r * cosf(theta); //calculate the x component float y = r * sinf(theta); //calculate the y component pos_x = x + cx; //calculate current x position pos_y = y + cy; //calculate current y position //calculate distance from current vertex to obstacle dist = sqrt(pow(pos_x - obst_x) + pow(pos_y - obst_y)); //check if current vertex intersects with obstacle if dist <= 0 { break; //stop drawing circle } else { glVertex2f(pos_x, pos_y); //draw vertex } } glEnd(); }

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  • Exception loading CustomMeta from Tridion Broker Service (2009 SP1)

    - by Rob Stevenson-Leggett
    I am trying to load some Custom Meta from a component which is published into the Tridion Broker. This is 2009 SP1 I can see the component in the Custom_Meta table with a query like: SELECT * FROM [Tridion_Broker].[dbo].[CUSTOM_META] WHERE ITEM_ID = 204221 However using the below code, I get a Java Runtime exception. string queryStringId = HttpUtility.UrlDecode(Request.QueryString["component_uri"]); string pageId = ((BasePage) Page).PageTcmId; int publicationId = int.Parse(pageId.Split(':')[1].Split('-')[0]); using (var cmf = new ComponentMetaFactory(publicationId)) { IComponentMeta cm = cmf.GetMeta(queryStringId); if(cm != null) { VideoId = cm.CustomMeta.GetValue("video_url").ToString(); } else { litMessage.Visible = true; } } Stack trace: [RuntimeException] Codemesh.JuggerNET.NTypeValue.Throw(Int64 inst) +351 Codemesh.JuggerNET.JavaClass.ThrowTypedException(Int64 inst) +1278 Codemesh.JuggerNET.JavaMethod.CallObject(JavaProxy jpo, JavaMethodArguments args) +551 Codemesh.JuggerNET.JavaMethod.CallObject(JavaProxy jpo, Type declaredType, Boolean bLeaf, JavaMethodArguments jargs) +50 Com.Tridion.Meta.ComponentMetaFactory.GetMeta(Int32 componentId) +118 Tridion.ContentDelivery.Meta.ComponentMetaFactory.GetMeta(Int32 componentId) +16 ASP._controls_video_ascx.Page_Load(Object sender, EventArgs args) in c:\Inetpub\wwwroot\borland\us\_controls\Video.ascx:18 System.Web.Util.CalliHelper.EventArgFunctionCaller(IntPtr fp, Object o, Object t, EventArgs e) +14 System.Web.Util.CalliEventHandlerDelegateProxy.Callback(Object sender, EventArgs e) +35 System.Web.UI.Control.OnLoad(EventArgs e) +99 System.Web.UI.Control.LoadRecursive() +50 System.Web.UI.Control.LoadRecursive() +141 System.Web.UI.Control.LoadRecursive() +141 System.Web.UI.Control.LoadRecursive() +141 System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +627

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  • What does stdole.dll do?

    - by rc1
    We have a large C# (.net 2.0) app which uses our own C++ COM component and a 3rd party fingerprint scanner library also accessed via COM. We ran into an issue where in production some events from the fingerprint library do not get fired into the C# app, although events from our own C++ COM component fired and were received just fine. Using MSINFO32 to compare the loaded modules on a working system to those on a failing system we determined that this was caused by STDOLE.DLL not being in the GAC and hence not loaded into the faulty process. Dragging this file into the GAC caused events to come back fine from the fingerprint COM library. So what does stdole.dll do? It's 16k in size so it can't be much... is it some sort of link to another library like STDOLE32? How come its absence causes such odd behavior? How do we distribute stdole.dll? This is an XCOPY deploy app and we don't use the GAC. Should we package it as a resource and use the System.EnterpriseServices.Internal.Publish.GacInstall to ensure it's in the GAC?

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  • Best practices on using URIs as parameter value in REST calls.

    - by dafmetal
    I am designing a REST API where some resources can be filtered through query parameters. In some cases, these filter values would be resources from the same REST API. This makes for longish and pretty unreadable URIs. While this is not too much of a problem in itself because the URIs are meant to be created and manipulated programmatically, it makes for some painful debugging. I was thinking of allowing shortcuts to URIs used as filter values and I wonder if this is allowed according to the REST architecture and if there are any best practices. For example: I have a resource that gets me Java classes. Then the following request would give me all Java classes: GET http://example.org/api/v1/class Suppose I want all subclasses of the Collection Java class, then I would use the following request: GET http://example.org/api/v1/class?has-supertype=http://example.org/api/v1/class/collection That request would return me Vector, ArrayList and all other subclasses of the Collection Java class. That URI is quite long though. I could already shorten it by allowing hs as an alias for has-supertype. This would give me: GET http://example.org/api/v1/class?hs=http://example.org/api/v1/class/collection Another way to allow shorter URIs would be to allow aliases for URI prefixes. For example, I could define class as an alias for the URI prefix http://example.org/api/v1/class/. Which would give me the following possibility: GET http://example.org/api/v1/class?hs=class:collection Another possibility would be to remove the class alias entirely and always prefix the parameter value with http://example.org/api/v1/class/ as this is the only thing I would support. This would turn the request for all subtypes of Collection into: GET http://example.org/api/v1/class?hs=collection Do these "simplifications" of the original request URI still conform to the principles of a REST architecture? Or did I just go off the deep end?

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