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  • JAVA: How to use paint() method to update the previously drawn object?

    - by GamDroid
    How to use paint() such that when repaint() is called the previously drawn object should not get deleted when drawing the new object. That is the drawing area must get UPDATED only and not REDRAWN. In my code when one of many button is clicked, some aplhabet get displayed. I want to have functionality such that when other buttons are clicked the previously drawn alhabets must be present.Take is as if a string of alphabets getting created as the buttons are clicked. Im using Java Swing for coding. Some piece of my code: if(source == btnAlpha[i] ) bollyDraw.repaint(); //bollydraw is an object of a JPanel extended class having implemented the paintComponent(Graphics g) method In the paint() method: if (word[i] == key) { g.drawChars(word, i, 1, x, y); }

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  • Multiple Tables or Multiple Schema

    - by Yan Cheng CHEOK
    http://stackoverflow.com/questions/1152405/postgresql-is-better-using-multiple-databases-with-1-schema-each-or-1-database I am new in schema concept for PostgreSQL. For the above mentioned scenario, I was wondering Why don't we use a single database (with default schema named public) Why don't we have a single table, to store multiple users row? Other tables which hold users related information, with foreign key point to the user table. Can anyone provide me a real case scenario, which single database, multiple schema will be extremely useful, and can't solve by conventional single database, single schema.

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  • How to implement multi relationship in MS SQL?

    - by Ethan
    I’m trying to design a database to use with ASP.net MVC application. Here is the scenario: There are three entities and users can post their comments for each of these different entities. I just wonder how just put one table for Comments and link all other entities to it. Obviously, Comments table needs 3 references (foreign key) to those tables but as you know these foreign keys can’t be null and just one of them can be filled for each row. Is there any better way than implementing three different tables for each entity’s comments? Cheers Ethan

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  • silverlight DataGrid style

    - by Piyush
    my Datagrid is: <data:DataGrid x:Name="dgSearchResults" Style="{StaticResource dgStyle}" Grid.Row="1" ColumnHeaderStyle="{StaticResource dgHeaderStyle}" > I have defined styles in my App.xaml file: <Style x:Key="dgStyle" TargetType="data:DataGrid"> <Setter Property="Background" Value="White"/> <Setter Property="RowBackground" Value="#FFF6F6F6"/> <Setter Property="Foreground" Value="#FF3A3B3B"/> <Setter Property="FontFamily" Value="Verdana"/> <Setter Property="FontSize" Value="13.333"/> </Style> EXCEPTION-- Invalid attribute value data:DataGrid for property TargetType. [Line: 61 Position: 43]

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  • Flowplayer: Clicking on the player forces is to reload.

    - by PaulDavis
    Hey everyone, I've got this damn annoying bug (or wrong setting) that makes the player reload whenever it's clicked. It's set to play when you click, so when you click it, it reloads. The circle begins.... The reloading only happens in Firefox. In Safari (and I assume Chrome), the video opens in its own window. Not ideal, but it still plays. Here's the code for the player: (I can't share the link unfortunately, NDAs etc etc.) flashembed("player", "/flowplayer.commercial-3.0.7.swf", { config: { key: '#@xxxxxx', clip: { autoPlay: false, autoBuffering: true, url: "http://myvid.com/url.mp4", wmode: 'opaque' } } }); This site is full of complete geniuses, I hope one of you can help me out!

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  • Show UIAlertView that is same as UIRemoteNotification when app is running in foreground

    - by Sidwyn Koh
    I understand that we can handle push notifications via the method: - (void)application:(UIApplication *)application didReceiveRemoteNotification:(NSDictionary *)userInfo and we can check if the app was running in the foreground: if (application.applicationState == UIApplicationStateActive ) { ... } How do we show the exact same notification with localisation? NSString *message = [[[userInfo valueForKey:@"aps"] valueForKey:@"alert"] valueForKey:@"loc-key"]; NSString *trueMessage = NSLocalizedString(message, nil); UIAlertView *alertView = [[UIAlertView alloc] initWithTitle:@"Alert" message:trueMessage cancelButtonItem:@"OK" otherButtonItems:@"Show", nil]; [alertView show]; This shows the raw unlocalized text, e.g. "You have a new alert from %1@ on %2@." My question is, how can we place the loc-args inside the UIAlertView as well, when the app is running in the foreground?

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  • Convert T-SQL function to PL/SQL

    - by llasarov
    can you help me convert following T-SQL funcntion into Oracle. The function converts a string like service|nvretail;language|de;yyyy|2011; to a table. The main problem I have is the usage of the temp table. I could not find any equivalent to it in Oracle. CREATE FUNCTION [dbo].[TF_ConvertPara] ( @parastringNVARCHAR(max) ) RETURNS @para TABLE ( [Key] varchar(max), [Value] varchar(max) ) begin DECLARE @NextString NVARCHAR(40) DECLARE @Pos1 INT DECLARE @Pos2 INT DECLARE @NextPos INT DECLARE @Delimiter1 NCHAR=';' DECLARE @Delimiter2 NCHAR='|' if substring(@paraString, len(@paraString) - 1, 1) <> @Delimiter1 SET @paraString = @paraString + @Delimiter1 SET @Pos1 = charindex(@Delimiter1, @paraString) WHILE (@pos1 <> 0) BEGIN SET @NextString = substring(@paraString, 1, @Pos1 - 1) SET @paraString = substring(@paraString, @pos1 + 1, len(@paraString)) SET @pos1 = charindex(@Delimiter1, @paraString) SET @Pos2 = charindex(@Delimiter2, @NextString) if (@Pos2 > 0) begin insert into @para values (substring(@NextString, 1, @Pos2 - 1), substring(@NextString, @Pos2 + 1, len(@NextString))) end END return; end Thank you in advance.

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  • SQL Server: collect values in an aggregation temporarily and reuse in the same query

    - by Erwin Brandstetter
    How do I accumulate values in t-SQL? AFAIK there is no ARRAY type. I want to reuse the values like demonstrated in this PostgreSQL example using array_agg(). SELECT a[1] || a[i] AS foo ,a[2] || a[5] AS bar -- assuming we have >= 5 rows for simplicity FROM ( SELECT array_agg(text_col ORDER BY text_col) AS a ,count(*)::int4 AS i FROM tbl WHERE id between 10 AND 100 ) x How would I best solve this with t-SQL? Best I could come up with are two CTE and subselects: ;WITH x AS ( SELECT row_number() OVER (ORDER BY name) AS rn ,name AS a FROM #t WHERE id between 10 AND 100 ), i AS ( SELECT count(*) AS i FROM x ) SELECT (SELECT a FROM x WHERE rn = 1) + (SELECT a FROM x WHERE rn = i) AS foo ,(SELECT a FROM x WHERE rn = 2) + (SELECT a FROM x WHERE rn = 5) AS bar FROM i Test setup: CREATE TABLE #t( id INT PRIMARY KEY ,name NVARCHAR(100)) INSERT INTO #t VALUES (3 , 'John') ,(5 , 'Mary') ,(8 , 'Michael') ,(13, 'Steve') ,(21, 'Jack') ,(34, 'Pete') ,(57, 'Ami') ,(88, 'Bob') Is there a simpler way?

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  • MySQL Volleyball Standings

    - by Torez
    I have a database table full of game by game results and want to know if I can calculate the following: GP (games played) Wins Loses Points (2 points for each win, 1 point for each lose) Here is my table structure: CREATE TABLE `results` ( `id` int(10) unsigned NOT NULL auto_increment, `home_team_id` int(10) unsigned NOT NULL, `home_score` int(3) unsigned NOT NULL, `visit_team_id` int(10) unsigned NOT NULL, `visit_score` int(3) unsigned NOT NULL, PRIMARY KEY (`id`) ) ENGINE=MyISAM DEFAULT CHARSET=latin1 AUTO_INCREMENT=7 ; And a few testing results: INSERT INTO `results` VALUES(1, 1, 21, 2, 25); INSERT INTO `results` VALUES(2, 3, 21, 4, 17); INSERT INTO `results` VALUES(3, 1, 25, 3, 9); INSERT INTO `results` VALUES(4, 2, 7, 4, 22); INSERT INTO `results` VALUES(5, 1, 19, 4, 20); INSERT INTO `results` VALUES(6, 2, 24, 3, 26); Here is what a final table would look like: +-------------------+----+------+-------+--------+ | Team Name | GP | Wins | Loses | Points | +-------------------+----+------+-------+--------+ | Spikers | 4 | 4 | 0 | 8 | | Leapers | 4 | 2 | 2 | 6 | | Ground Control | 4 | 1 | 3 | 5 | | Touch Guys | 4 | 0 | 4 | 4 | +-------------------+----+------+-------+--------+

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  • Using Mapped Memory Files in C# to store reference types

    - by Khash
    I need to store a dictionary to a file as fast as possible. Both key and value are objects and not guaranteed to be marked as Serializable. Also I prefer a method faster than serializing thousands of objects. So I looked into Mapped Memory Files support in .NET 4. However, it seems MemoryMappedViewAccessor only allows storage of structs and not reference types. Is there a way of storing the memory used by a reference type of a file and reconstructing the object from that blob of memory (without binary serialization)?

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  • VS development on FDCC compliant Workstation

    - by paramesh kudlur
    Hi, I have a FDCC compliant workstation with FIPS 140-1 (Level 1) enabled. Now, i cannot run/debug any VS 2005/2008 applications on my machine I get the following error message on my browser Parser Error Message: This implementation is not part of the Windows Platform FIPS validated cryptographic algorithms. the Error points to line no 1 of default.aspx.cs file using system; The only way to successfully debug/run my application is to set the following registry key to 0 HKLM\System\CurrentControlSet\Control\Lsa\fipsalgorithmpolicy I understand that there are some Cryptographic algorithms that are not FIPS compliant on XP SP2 but i am not using cryptography at all. For that matter, the solution contains just default.aspx page with default code in .cs file, and even that fails to run. So my question is why the webpage fails to load, and why the error points to line #1 "using System;" statement? My next question is how can i develop on FIPS compliant locked down maching where i do not have edit rights on registry Thanks kudlur

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  • Invoke a subclass method of an anonymous class

    - by arjacsoh
    I am trying right now to dig into anonymous classes and one question was just arised I 'd prefer not to refer to much details and to pose my question straightforward: How can I invoke the method sizzle() in the following anonymous class: public class Popcorn { public void pop() { System.out.println("popcorn"); } } class Food { Popcorn p = new Popcorn() { public void sizzle() { System.out.println("anonymous sizzling popcorn"); } public void pop() { System.out.println("anonymous popcorn"); } }; public void popIt() { p.pop(); // OK, Popcorn has a pop() method p.sizzle(); // Not Legal! Popcorn does not have sizzle() } } It is known and definite in polymorphism rules that a refernce of a superclass cannot invoke methods of subclass without downcasting (even if it refers to an object of the given subclass). However in the above case what is the "key" to invoke the sizzle() method?

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  • Passing more than one argument in asp.net button in gridview

    - by MarceloRamires
    I have a TemplateField column in a gridview with a button inside of it. There is NO key value (surely that was not designed by me) , but in the other hand there aren't redundancies when comparing each single column, because they are events, and there is "starting date" and "ending date" of something that could not happen twice at the same time. I've already figured selecting with these values and all, but I just want the button to pass about five arguments to a given function. I've tested: <asp:Button CommandArgument='<%# Eval("day")%>' ID="Button2" runat="server" Text="Button" /> And it works properly, the day of the clicked row is passed, and could be retrieved through: e.CommandArgument.ToString(); in the GridView_RowCommand handler. How do I pass more than one argument? I've thought about concatenating with a separating character (wouldn't be that bad) but besides not knowing how to do it yet (didn't want to invest in a poor solution) I want a smarter one.

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  • Engine finish() causes segmentation fault

    - by Becky
    Hello All - I am using M2Crypto revision 723 from the repository. I am trying to clean up my engine. If I have the pkcs11.finish() line in my script, the script finishes but gets a segmentation fault at the end. Without the finish() line, no segmentation fault occurs. Is there something wrong with the way I'm using finish()? dynamic=Engine.load_dynamic_engine("pkcs11","/usr/local/ssl/lib/engines/engine_pkcs11.so") pkcs11 = Engine.Engine("pkcs11") pkcs11.ctrl_cmd_string("MODULE_PATH", "/usr/lib/libeTPkcs11.so") pkcs11.init() # next few steps which I deleted pass password and grab key & cert off token pkcs11.finish() Engine.cleanup() Thanks!

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  • Dashcode: How to create a custom/new Project Template?

    - by JJBigThoughts
    I'm trying to customize the javascript that Dashcode uses. So that I won't step on Apple's Project Templates, I want to make a custom project template that would appear as a choice after you click "New Project." I have been able to modify one of the existing templates (like, Custom, Browser, Utility, RSS, and Podcast). I can not, however, seem to add a new template to the list, like adding "JJ's Awesome New Cross Platform Template" as a choice. I have tried copying the directory Plugins/TemplateWebCustom.wdgtTemplate and changing in Custom's Info.plist file the com.apple.Dashcode.template.web.custom to, say com.apple.Dashcode.template.web.custom2 and in Resouces/project.plist updating the key value pair: TemplateIdentifier ==>com.apple.Dashcode.template.web.custom Is it possible to add a new Project Template? What the minimum steps? Thanks, JJ

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  • Disabling Task manager using c# in OS Hardened machine

    - by srk
    I am using the below code to disable the task manager for a kiosk application which works perfectly public void DisableTaskManager() { RegistryKey regkey; string keyValueInt = "1"; string subKey = "Software\\Microsoft\\Windows\\CurrentVersion\\Policies\\System"; try { regkey = Registry.CurrentUser.CreateSubKey(subKey); regkey.SetValue("DisableTaskMgr", keyValueInt); regkey.Close(); } catch (Exception ex) { MessageBox.Show("DisableTaskManager" + ex.ToString()); } } But when i run this in OS hardened machine i get the following error, DisableTaskManagerSystem.UnauthorizedAccessException: Access to the registry key 'HKey_Current_User\Software\Mictrosoft\Windows\CurrentVersion\Policies\System' is denied. at Microsoft.win32.RegistryKey.win32Error(int32 errorcode, String str) How can i overcome this ? I need to do this for a Kiosk application.

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  • list-index hibernate ?

    - by kumar kasimala
    Hi I am bit confusion of list index type,my mapping file has like below <list name="transactionItems" cascade="save-update,delete-orphan" lazy="false"> <key column="TRANSACTION_ID" /> <list-index column="IDX" /> <one-to-many class="TransactionItem" /> </list> whenever hibernate load a mapped object,its through exception null index column for collection:transactionItems please suggest me what can be the problem here. can you exaplain a bit about list-index? thanks & Regards kumar kasiamla India,Hyderabad.

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  • Generic Method to find the tuples used for computation in Postgres?

    - by Rahul
    If I have a table col1 | name | pay ------+------------------+------ 1 | Steve Jobs | 1006 2 | Mike Markkula | 1007 3 | Mike Scott | 1978 4 | John Sculley | 1983 5 | Michael Spindler | 1653 The user executes a sum query which sums the pay of people getting paid more than $1500. Is there a way to also implicitly know which tuples have been used which satisfy the condition for sum ? I know you can separately write another query to just return the primary key ids which satisfy the condition. But, Is there any other way to do that in the same query ? probably rewrite the query in some way ? or... any suggestion ?

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  • Why Banks or Financial Companies prefer Oracle than other RDBMS for their "Core" systems?

    - by edwin.nathaniel
    I'd like to know why most Banks or Financial companies prefer Oracle than other RDBMS for their core systems (the absolutely minimum features that a Bank must support). I found a few answers that didn't satisfy me. For example: Oracle has more features. But features for what? Can't you implement that in application level if you were not using Oracle? Could someone please describe a bit more technical but still on high-level overview of what the bank needs and how Oracle would solve it and the others can't or don't have the features yet? I came from the web-app (web 2.0) crowd who normally hear news about MySQL, PostgreSQL or even key-value/column-oriented storage solution. I have almost zero knowledge on how Banks or Financial companies operates from technical perspective. Thank you, Ed

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  • Safari Extension - How to respond to Settings changes?

    - by Martin Marlow
    Hi, I'm currently working on an Extension for Safari 5 and I want to run a listener function whenever Settings changes are made. Apple provides an example for that, but it doesn't work for me. I currently have this listener function in my global html file: function numberChanged() { if(event.key == "number") alert("Number has changed!"); } safari.self.addEventListener("change", numberChanged, false); I hope somebody can help me. Does somebody know what I'm doing wrong?

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  • Hiding a value in an Android application

    - by Ewan
    Hi, I need to hide a value in a mobile (Android OS) application. As far as I can see, encrypting the value is of no use as the key to the encryption mechanism must be available to the program and is thus available to an attacker reverse-engineering the code. So, it seems that the only "solution" is to hide the secret value in the application as well as possible, obviously not ideal. Any comments? Am I missing something? If not, what's the best way to hide the value? Thanks for your ideas! Ewan

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  • Bind the value of a parameter in an ObjectDataProvider in WPF

    - by Andrei Rinea
    I would like to be able to be doing this : <ObjectDataProvider x:Key="dataProvider" ObjectInstance="uiRoot:App.Current.Controller" MethodName="GetMyViewModel"> <ObjectDataProvider.MethodParameters> <system:Int32>{Binding Id}</system:Int32> </ObjectDataProvider.MethodParameters> </ObjectDataProvider> The emphasis being on <system:Int32>{Binding Id}</system:Int32> I can't get around this. Any ideas? :(

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  • How to maintain tabs when pasting in Vim

    - by Ant Wilson
    I use the tab key to indent my python code in Vim, but whenever I copy and paste a block Vim replaces every tab with 4 spaces, which raises an IndentationError I tried setting :set paste as suggested in related questions but it makes no difference Other sites suggest pasting 'tabless' code and using the visual editor to re-indent, but this is asking for trouble when it comes to large blocks Are there any settings I can apply to vim to maintain tabs on copy/paste? Thanks for any help with this :) edit: I am copying and pasting within vim using the standard gnome-terminal techniques (ctrl+shift+c / mouse etc.) my .vimrc is: syntax on set ts=4 if has("terminfo") let &t_Co=8 let &t_Sf="\e[3%p1%dm" let &t_Sb="\e[4%p1%dm" else let &t_Co=8 let &t_Sf="\e[3%dm" let &t_Sb="\e[4%dm" endif I looked up that ts - Sets tab stops to n for text input, but don't know what value would maintain a tab character

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  • In need of a SaaS solution for semantic thesaurus matching

    - by Roy Peleg
    Hello, I'm currently building a web application. In one of it's key processes the application need to match short phrases to other similar ones available in the DB. The application needs to be able to match the phrase: Looking for a second hand car in good shape To other phrases which basically have the same meaning but use different wording, such as: 2nd hand car in great condition needed or searching for a used car in optimal quality The phrases are length limited (say 250 chars), user generated & unstructured. I'm in need of a service / company / some solution which can help / do these connections for me. Can anyone give any ideas? Thanks, Roy

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  • Use of Java constructors in persistent entities

    - by Mr Morgan
    Hello I'm new to JPA and using persistence in Java anyway and I have two questions I can't quite work out: I have generated tags as: @JoinColumn(name = "UserName", referencedColumnName = "UserName") @ManyToOne(optional = false) private User userName; @JoinColumn(name = "DatasetNo", referencedColumnName = "DatasetNo") @ManyToOne(optional = false) private Dataset datasetNo; But in one of the constructors for the class, no reference is made to columns UserName or DatasetNo whereas all other columns in the class are referenced in the constructor. Can anyone tell me why this is? Both columns UserName and DatasetNo are 'foreign keys' on the entity Visualisation which corresponds to a database table of the same name. I can't quite work out the ORM. And when using entity classes, or POJO, is it better to have class variables like: private User userName; Where an instance of a class is specified or simply the key of that class instance like: private String userName; Thanks Mr Morgan.

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