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  • How do you hibernate/suspend Ubuntu like Windows or both at the same time?

    - by All Star Geek
    I'm using an ASUS laptop with Windows 7, and I just installed Ubuntu alongside Windows yesterday, using the no-risk option. I noticed, though, that I can't hibernate Ubuntu the way I did with Windows to save time, and, every time I use Ubuntu, I have to shut down to go into Windows, which has a slow boot. Is there any way that I could have Windows and Ubuntu hibernated at the same time so I can access both easily (preferably without having to hit a function key within seconds). When I try to hibernate or suspend Ubuntu with Windows shut down, the screen just turns blue and doesn't shut the computer off like a Windows hibernate or sleep.

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  • Poll Results: Foreign Key Constraints

    - by Darren Gosbell
    A few weeks ago I did the following post asking people – if they used foreign key constraints in their star schemas. The poll is still open if you are interested in adding to it, but here is what the chart looks like as of today. (at the bottom of the poll itself there is a link to the live results, unfortunately I cannot link the live results in here as the blogging platform blocks the required javascript)   Interestingly the results are fairly even. Of the 78 respondents, fractionally over half at least aim to start with referential integrity in their star schemas. I did not want to influence the results by sharing my opinion, but my personal preference is to always aim to have foreign key constraints. But at the same time, I am pragmatic about it, I do have projects where for various reasons some constraints are not defined. And I also have other designs that I have inherited, where it would just be too much work to go back and add foreign key constraints. If you are going to implement foreign keys in your star schema, they really need to be there at the start. In fact this poll was was the result of a feature request for BIDSHelper asking for a feature to check for null/missing foreign keys and I am entirely convinced that BIDS is the wrong place for this sort of functionality. BIDS is a design tool, your data needs to be constantly checked for consistency. It's not that I think that it's impossible to get a design working without foreign key constraints, but I like the idea of failing as soon as possible if there is an error and enforcing foreign key constraints lets me "fail early" if there are constancy issues with my data. By far the biggest concern with foreign keys is performance and I suppose I'm curious as to how often people actually measure and quantify this. I worked on a project a number of years ago that had very large data volumes and we did find that foreign key constraints did have a measurable impact, but what we did was to disable the constraints before loading the data, then enabled and checked them afterwards. This saved as time (although not as much as not having constraints at all), but still let us know early in the process if there were any consistency issues. For the people that do not have consistent data, if you have ETL processes that you control that are building your star schema which you also control, then to be blunt you only have yourself to blame. It is the job of the ETL process to make the data consistent. There are techniques for handling situations like missing data as well as  early and late arriving data. Ralph Kimball's book – The Data Warehouse Toolkit goes through some design patterns for handling data consistency. Having foreign key relationships can also help the relational engine to optimize queries as noted in this recent blog post by Boyan Penev

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  • Motorola NVG510 bridge mode

    - by Blacklight Shining
    I have a Motorola NVG510 modem from AT&T, and I would like to disable all routing functions and use it as just a modem. I have a Time Capsule that's already connected and broadcasting its own wireless network, which is how I've been connecting (it's been reporting a double-NAT error, which I assume is from the NVG510 also acting as a router). I followed the instructions in question six here, and I can connect as I did before, but my Time Capsule still has a double-NAT error. How do I put the NVG510 into bridge mode or otherwise fix the double-NAT error? (No, ignoring it does not count as a fix.)

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  • How do I fix a corrupt calendar cache?

    - by Blacklight Shining
    I was tailing /var/log/system.log and noticed a sudden wall of text. Looking closer, I saw it was an error CalendarAgent got while trying to save something: Nov 18 11:42:45 rainbow-dash.local CalendarAgent[12321]: CoreData: error: (11) Fatal error. The database at /Users/blackl/Library/Calendars/Calendar Cache is corrupted. SQLite error code:11, 'database disk image is malformed' Nov 18 11:42:45 rainbow-dash.local CalendarAgent[12321]: Core Data: annotation: -executeRequest: encountered exception = Fatal error. The database at /Users/blackl/Library/Calendars/Calendar Cache is corrupted. SQLite error code:11, 'database disk image is malformed' with userInfo = { NSFilePath = "/Users/blackl/Library/Calendars/Calendar Cache"; NSSQLiteErrorDomain = 11; } 2 messages repeated several times Nov 18 11:42:49 rainbow-dash.local CalendarAgent[12321]: [com.apple.calendar.store.log.subscription] [WARNING: CalSubscriptionSession :: persistError :: save failed] This entire sequence is repeated many times throughout the log. file said the file in question was a SQLite 3.x database, so I did a bit of searching and came up with a way to check those. blackl% cp -i ~/Library/Calendars/Calendar\ Cache /tmp blackl% sqlite3 /tmp/Calendar\ Cache SQLite version 3.7.12 2012-04-03 19:43:07 Enter ".help" for instructions Enter SQL statements terminated with a ";" sqlite> pragma integrity_check ; *** in database main *** Main freelist: Bad ptr map entry key=863 expected=(2,0) got=(5,21) On page 21 at right child: 2nd reference to page 863 This is followed by a few dozen lines like these: rowid <number> missing from index <name> and then: wrong # of entries in index <name> I'm at a bit of a loss as to what to do now—I couldn't find anything on how to fix the errors that I found. Also, it would probably be a good idea to disable Calendar Agent so it doesn't try to use the database while it's being fixed (that's why I copied it to /tmp before running sqlite3 on it.) How do I disable CalendarAgent and fix its cache?

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  • Why is setuid ignored on directories?

    - by Blacklight Shining
    On Linux systems, you can successfully chmod u+s $some_directory, but instead of forcing the ownership of new subdirectories and files to be the owner of the containing directory (and setting subdirectories u+s as well) as you might expect, the system just ignores the setuid bit. Subdirectories and files continue to inherit the UIDs of their creating processes, and subdirectories are not setuid by default. Why is setuid ignored on directories, and how can I get the system to recognize it?

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  • If I scp a file through an intermediate server, is the file stored temporarily on the server?

    - by Blacklight Shining
    For the sake of simplicity (I find it easier to remember names than arbitrary letters), I will dispense with letters and use names to refer to the machines in this scenario. Say I have two machines, applejack and pinkie-pie, each on their own separate LANs and not in the same physical location. I also have a server, cadance, with a direct Internet-facing connection. I want to copy a file from applejack to pinkie-pie, so to avoid dealing with port forwarding and such, I set up an ssh tunnel from pinkie-pie to cadance (ssh -R etc cadance). Now I can connect to pinkie-pie from anywhere, by connecting to cadance and specifying an alternate port to use. I can also easily copy files to pinkie-pie with scp -P $that_port $some_file cadance:$some_path. My understanding of how it works is this: A secure connection is made from applejack to cadance I am authenticated to cadance A secure connection is made from applejack to pinkie-pie that spans the existing reverse tunnel and the new connection from step 1. I am authenticated to pinkie-pie Files are copied directly from applejack to pinkie-pie over this connection. Am I correct here? How secure is this approach? If I'm wrong…are files copied this way decrypted at cadance before being passed on to pinkie-pie? Is there a possibility that traces of unencrypted data could remain on cadance?

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  • Disallow user from decrypting the startup disk

    - by Blacklight Shining
    When you enable FileVault's full-disk encryption, it asks for the password of each account on the system to allow every user to decrypt the disk. You can simply choose not to have a user enter their password, and they will not be able to decrypt the disk. However, if you create an account after enabling disk encryption, the user is automatically allowed to decrypt the disk. How do I disallow a user from decrypting the startup disk?

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  • Homebrew requires something uninstall-developer-folder removes

    - by Blacklight Shining
    I was having trouble installing irssi (brew install irssi), so I ran brew doctor, which returned a warning mentioning an outdated copy of Xcode and saying I should run /Developer/Library/uninstall-developer-folder. Then I ran brew doctor again and got: Error: No such file or directory - /Developer/SDKs/MacOSX10.6.sdk How do I reinstall the SDK, or is there another way to get Homebrew working again? UPDATE: /Developer actually still exists (despite the obvious implication of uninstall-developer-folder), as does /Developer/SDKs/MacOSX10.7.sdk. Why does Homebrew specifically need Snow Leopard's SDK?

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  • How can I make an encrypted email message into a .p7m file?

    - by Blacklight Shining
    This is a bit complicated, so I'll explain what I'm really trying to do here: I have a Debian server, and I want to automatically email myself certain logs every week. I'm going to use cron and a bash script to copy the logs into a tarball shortly after midnight every Monday. A bash script on my home computer will then download the tarball from the server, along with a file to be used as the body of the email, and call an AppleScript to make a new email message. This is where I'm stuck—I can't find a way to encrypt and sign the email using AppleScript and Apple's mail client. I've noticed that if I put a delay in before sending the message, Mail will automatically set it to be encrypted and signed (as it normally does when I compose a message myself). However, there's no way to be sure of this when the script runs—if something goes wrong there, the script will just blindly send the email unencrypted. My solution there would be to somehow manually create a .p7m file with the tarball and message and attach it to the email the AppleScript creates. Then, when I receive it, Mail will treat it just like any other encrypted message with an attachment (right?) If there's a better way to do this, please let me know. ^^ (Ideally, everything would be done from the server, but there doesn't seem to be a way to send mail automatically without storing a password in plaintext.) (The server is running Debian squeeze; my home computer is a Mac running OS X Lion.)

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  • How can I automatically synchronize a directory tree on multiple machines?

    - by Blacklight Shining
    I have two Mac laptops and a Debian server, each with a directory that I would like to keep in sync between the three. The solution should meet the following criteria (in rough order of importance): It must not use any third-party service (e.g. Dropbox, SugarSync, Google whatever). This does not include installing additional software (as long as it's free). It must not require me to use specific directories or change my way of storing things. (Dropbox does this IIRC) It must work in all directions (changes made on /any/ machine should be pushed to the others) All data sent must be encrypted (I have ssh keypairs set up already) It must work even when not all machines are available (changes should be pushed to a machine when it comes back online) It must work even when the /directories/ on some machines are not available (they may be stored on disk images which will not always be mounted) This can be solved for Macs by using launchd to automatically launch and kill (or in some way change the behavior of) whatever daemon is used for syncing when the images are mounted and unmounted. It must be immediate (using an event-based system, not a periodic one like cron) It must be flexible (if more machines are added, I should be able to incorporate them easily) I also have some preferences that I would like to be fulfilled, but do not have to be: It should notify me somehow if there are conflicts or other errors. It should recognize symbolic and hard links and create corresponding ones. It should allow me to create a list of exceptions (subdirectories which will not be synced at all). It should not require me to set up port forwarding or otherwise reconfigure a network. This can be solved by using an ssh tunnel with reverse port forwarding. If you have a solution that meets some, but not all of the criteria, please contribute it in the comments as it might be useful in some way, and it might be possible to meet some of the criteria separately. What I tried, and why it didn't work: rsync and lsyncd do not support bidirectional synchronization csync2 is designed for server clusters and does not appear to work with machines with dynamic IPs DRBD (suggested by amotzg) involves installing a kernel module and does not appear to work on systems running OS X

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  • How can I make a persistent ssh tunnel?

    - by Blacklight Shining
    I have a Mac laptop and would like to have a persistent ssh tunnel so I can always log in from outside the local network. I'm looking for something that will work when the server can't be reached initially (e.g. if I don't have an Internet connection when I boot it), and will automatically start the tunnel when possible. I've tried putting an @reboot autossh line in my crontab, but I've found that sessions started with autossh disconnect every so often, and autossh quits if the first attempt fails. My current workaround is a small script and a cronjob: # crontab /home/blackl/bin/script &! # script #!/bin/sh while true; do ssh -Ngn -R $some_port:localhost:22 $server; sleep 30; done; Is there a better way to do this, or will I just have to be happy with this for now?

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  • How do I make an encrypted disk image on Debian?

    - by Blacklight Shining
    I'm basically looking for an equivalent to OS X's encrypted sparsebundles. The solution should have support for file ACLs and should not force me to specify a size in the beginning (the image should only take up as much space as it needs) or require root access to mount and unmount. Ideally, I should be able to set two different passwords (both for the same data), but that's not too important. (I do have root access to the machine and so can install packages and such, but I would rather not have to sudo just to mount an image.)

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  • ICC Cricket World Cup 2011- Free Online Live Streaming, Mobile Apps, TV and Radio Guide

    - by Kavitha
    The ICC Cricket World Cup 2011 will be hosted jointly by Bangladesh, India and Sri Lanka. This 10th edition of World Cup is held between 19 February-2 April 2011. The World Cup drive will be starting in Dhaka on 19 February with the inaugural match between India and Bangladesh. The 43 days long ICC World Cup Cricket 2011 event will host 49 matches, day matches starting as early as 9.30am IST and day-night matches starting at 2.30pm IST. Here is our guide to follow 2011 ICC Cricket World Cup live on your computers, televisions,mobiles and radios Free Live Streaming On The Web (Official & Unofficial) http://espnstar.com will live stream all the matches of World Cup 2011 and they will be available in HD quality as they are the official broadcasters of World Cup 2011 cricket event. This is the first time ever a world cup cricket event is streamed online officially. If you are not able to access the official live streaming of Cricket World Cup due to regional restrictions, point your browser to any of the following unofficial live streams on the web. NOTE: MAKE SURE THAT YOUR ANTIVIRUS and ANTIMALWARE software are up and running before opening any of these sites. crictime.com - this site offers 6 live streaming servers that offer World Cup 2011 Cricket matches streams. Don’t mind the ads that are displayed left,right and center and just enjoy the cricket. Web pages dedicated for the world cup streaming are already live and you can bookmark them for your reference. cricfire.com/live-cricket: cricfire   gathers cricket live streams available around the web and provides them for easy access. Also they provide links for watching highlights and other post match analysis shows. Other sites that provide live streaming videos extracover.net webcric.com Searching for Unofficial Streams On Live Video Streaming Sites One of the best ways to find the unofficial streams is look for live streaming feeds on popular video streaming websites. We can be assured that these sites does not spread malware and spammy ads as they are well established. Here are the queries that you can use to search the popular sites FreedoCast  http://freedocast.com/search.aspx?go=cricket%20world%20cup Justin.tv      http://www.justin.tv/search?q=cricket+world+cup Ustream.tv  http://www.ustream.tv/discovery/live/all?q=cricket%20world%20cup TV Channels That Telecast Cricket World Cup Live Even though web is the place where we spend most of our time for entertainment, TVs are still popular for watching sports events. Mostly 90% of us are going to follow this cricket world cup matches on television sets. Here is the list of TV channels that paid whooping amounts of money for broadcasting rights and going to telecast live cricket Afghanistan – Ariana Television Network: Lemar TV Australia – Nine Network, Fox Sports Bangladesh – Bangladesh Television Canada – Asian Television Network China – ESPN Star Sports Europe (Except UK & Ireland) – Eurosport2 Fiji – Fiji TV India – ESPN Star Sports, Star Cricket, DD National (mostly India matches alone) Ireland – Zee Cafe Jamaica – Television Jamaica Middle East – Arab Radio and Television Network Nepal – ESPN Star Sports New Zealand – Sky Sport Pacific Islands – Sky Pacific Pakistan – GEO Super, Pakistan Television Corporation Pan-Africa – South African Broadcasting Corporation Singapore – Star Cricket South Africa – Supersport, Sabc3 Sport Sri Lanka – Sri Lanka Rupavahini Corporation United Kingdom – Sky Sports HD USA – Willow Cricket, DirecTV, Dish Network West Indies – Caribbean Media Corporation Radio Stations That Provide Live Commentary Don’t we listen to radio? Yes we still listen to radios, especially when we are on the go. Radios are part of our mobiles as well as music players like iPods. Here are the stations that you can tune into for catching live cricket commentary Australia – ABC Local Radio Bangladesh – Bangladesh Betar Canada , Central America – EchoStar India – All India Radio Pakistan, United Arab Emirates – Hum FM Sri Lanka – FM Derana United Kingdom, Ireland – BBC Radio West Indies – Caribbean Media Corporation Watch World Cup Cricket On Your Mobile This section is for Indian users. 3G rollout is happening at very high pace in all part of the India and most of the metros and towns are able to access 3G services. With 3G on your mobile you will be able to watch live ICC world cricket on your Reliance Mobiles and you can read more about it here. Top 10 Cricket Websites Check out our earlier post on top 10 cricket web sites for information. This article titled,ICC Cricket World Cup 2011- Free Online Live Streaming, Mobile Apps, TV and Radio Guide, was originally published at Tech Dreams. Grab our rss feed or fan us on Facebook to get updates from us.

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  • Render 2 images that uses different shaders

    - by Code Vader
    Based on the giawa/nehe tutorials, how can I render 2 images with different shaders. I'm pretty new to OpenGl and shaders so I'm not completely sure whats happening in my code, but I think the shaders that is called last overwrites the first one. private static void OnRenderFrame() { // calculate how much time has elapsed since the last frame watch.Stop(); float deltaTime = (float)watch.ElapsedTicks / System.Diagnostics.Stopwatch.Frequency; watch.Restart(); // use the deltaTime to adjust the angle of the cube angle += deltaTime; // set up the OpenGL viewport and clear both the color and depth bits Gl.Viewport(0, 0, width, height); Gl.Clear(ClearBufferMask.ColorBufferBit | ClearBufferMask.DepthBufferBit); // use our shader program and bind the crate texture Gl.UseProgram(program); //<<<<<<<<<<<< TOP PYRAMID // set the transformation of the top_pyramid program["model_matrix"].SetValue(Matrix4.CreateRotationY(angle * rotate_cube)); program["enable_lighting"].SetValue(lighting); // bind the vertex positions, UV coordinates and element array Gl.BindBufferToShaderAttribute(top_pyramid, program, "vertexPosition"); Gl.BindBufferToShaderAttribute(top_pyramidNormals, program, "vertexNormal"); Gl.BindBufferToShaderAttribute(top_pyramidUV, program, "vertexUV"); Gl.BindBuffer(top_pyramidTrianlges); // draw the textured top_pyramid Gl.DrawElements(BeginMode.Triangles, top_pyramidTrianlges.Count, DrawElementsType.UnsignedInt, IntPtr.Zero); //<<<<<<<<<< CUBE // set the transformation of the cube program["model_matrix"].SetValue(Matrix4.CreateRotationY(angle * rotate_cube)); program["enable_lighting"].SetValue(lighting); // bind the vertex positions, UV coordinates and element array Gl.BindBufferToShaderAttribute(cube, program, "vertexPosition"); Gl.BindBufferToShaderAttribute(cubeNormals, program, "vertexNormal"); Gl.BindBufferToShaderAttribute(cubeUV, program, "vertexUV"); Gl.BindBuffer(cubeQuads); // draw the textured cube Gl.DrawElements(BeginMode.Quads, cubeQuads.Count, DrawElementsType.UnsignedInt, IntPtr.Zero); //<<<<<<<<<<<< BOTTOM PYRAMID // set the transformation of the bottom_pyramid program["model_matrix"].SetValue(Matrix4.CreateRotationY(angle * rotate_cube)); program["enable_lighting"].SetValue(lighting); // bind the vertex positions, UV coordinates and element array Gl.BindBufferToShaderAttribute(bottom_pyramid, program, "vertexPosition"); Gl.BindBufferToShaderAttribute(bottom_pyramidNormals, program, "vertexNormal"); Gl.BindBufferToShaderAttribute(bottom_pyramidUV, program, "vertexUV"); Gl.BindBuffer(bottom_pyramidTrianlges); // draw the textured bottom_pyramid Gl.DrawElements(BeginMode.Triangles, bottom_pyramidTrianlges.Count, DrawElementsType.UnsignedInt, IntPtr.Zero); //<<<<<<<<<<<<< STAR Gl.Disable(EnableCap.DepthTest); Gl.Enable(EnableCap.Blend); Gl.BlendFunc(BlendingFactorSrc.SrcAlpha, BlendingFactorDest.One); Gl.BindTexture(starTexture); //calculate the camera position using some fancy polar co-ordinates Vector3 position = 20 * new Vector3(Math.Cos(phi) * Math.Sin(theta), Math.Cos(theta), Math.Sin(phi) * Math.Sin(theta)); Vector3 upVector = ((theta % (Math.PI * 2)) > Math.PI) ? Vector3.Up : Vector3.Down; program_2["view_matrix"].SetValue(Matrix4.LookAt(position, Vector3.Zero, upVector)); // make sure the shader program and texture are being used Gl.UseProgram(program_2); // loop through the stars, drawing each one for (int i = 0; i < stars.Count; i++) { // set the position and color of this star program_2["model_matrix"].SetValue(Matrix4.CreateTranslation(new Vector3(stars[i].dist, 0, 0)) * Matrix4.CreateRotationZ(stars[i].angle)); program_2["color"].SetValue(stars[i].color); Gl.BindBufferToShaderAttribute(star, program_2, "vertexPosition"); Gl.BindBufferToShaderAttribute(starUV, program_2, "vertexUV"); Gl.BindBuffer(starQuads); Gl.DrawElements(BeginMode.Quads, starQuads.Count, DrawElementsType.UnsignedInt, IntPtr.Zero); // update the position of the star stars[i].angle += (float)i / stars.Count * deltaTime * 2 * rotate_stars; stars[i].dist -= 0.2f * deltaTime * rotate_stars; // if we've reached the center then move this star outwards and give it a new color if (stars[i].dist < 0f) { stars[i].dist += 5f; stars[i].color = new Vector3(generator.NextDouble(), generator.NextDouble(), generator.NextDouble()); } } Glut.glutSwapBuffers(); } The same goes for the textures, whichever one I mention last gets applied to both object?

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  • How to recreate the UITabBarItem image filter?

    - by boliva
    Hi, I'm writing a custom UITabBar replacement, and I would like to know how to recreate the filter that the built-in implementation does with the UITabBarItem image - that blue shining on selected tabs and gray gradient on unselected ones. I guess it's a matter of using the source image alpha value as a mask and overlay it with a pre-made blue (or whatever color) shining image and another one grayed out, but I would like to know what is the best approach from a code point of view. Best,

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  • JCP Awards 10 Year Retrospective

    - by Heather VanCura
    As we celebrate 10 years of JCP Program Award recognition in 2012,  take a look back in the Retrospective article covering the history of the JCP awards.  Most recently, the JCP awards were  celebrated at JavaOne Latin America in Brazil, where SouJava was presented the JCP Member of the Year Award for 2012 (won jointly with the London Java Community) for their contributions and launch of the Global Adopt-a-JSR Program. This is also a good time to honor the JCP Award Nominees and Winners who have been designated as Star Spec Leads.  Spec Leads are key to the Java Community Process (JCP) program. Without them, none of the Java Specification Requests (JSRs) would have begun, much less completed and become implemented in shipping products.  Nominations for 2012 Start Spec Leads are now open until 31 December. The Star Spec Lead program recognizes Spec Leads who have repeatedly proven their merit by producing high quality specifications, establishing best practices, and mentoring others. The point of such honor is to endorse the good work that they do, showcase their methods for other Spec Leads to emulate, and motivate other JCP program members and participants to get involved in the JCP program. Ed Burns – A Star Spec Lead for 2009, Ed first got involved with the JCP program when he became co-Spec Lead of JSR 127, JavaServer Faces (JSF), a role he has continued through JSF 1.2 and now JSF 2.0, which is JSR 314. Linda DeMichiel – Linda thus involved in the JCP program from its very early days. She has been the Spec Lead on at least three JSRs and an EC member for another three. She holds a Ph.D. in Computer Science from Stanford University. Gavin King – Nominated as a JCP Outstanding Spec Lead for 2010, for his work with JSR 299. His endorsement said, “He was not only able to work through disputes and objections to the evolving programming model, but he resolved them into solutions that were more technically sound, and which gained support of its pundits.” Mike Milikich –  Nominated for his work on Java Micro Edition (ME) standards, implementations, tools, and Technology Compatibility Kits (TCKs), Mike was a 2009 Star Spec Lead for JSR 271, Mobile Information Device Profile 3. David Nuescheler – Serving as the CTO for Day Software, acquired by Adobe Systems, David has been a key player in the growth of the company’s global content management solution. In 2002, he became Spec Lead for JSR 170, Content Repository for Java Technology API, continuing for the subsequent version, JSR 283. Bill Shannon – A well-respected name in the Java community, Bill came to Oracle from Sun as a Distinguished Engineer and is still performing at full speed as Spec Lead for JSR 342, Java EE 7,  as an alternate EC member, and hands-on problem solver for the Java community as a whole. Jim Van Peursem – Jim holds a PhD in Computer Engineering. He was part of the Motorola team that worked with Sun labs on the Spotless VM that became the KVM. From within Motorola, Jim has been responsible for many aspects of Java technology deployment, from an independent Connected Limited Device Configuration (CLDC) and Mobile Information Device Profile (MIDP) implementations, to handset development, to working with the industry in defining many related standards. Participation in the JCP Program goes well beyond technical proficiency. The JCP Awards Program is an attempt to say “Thank You” to all of the JCP members, Expert Group Members, Spec Leads, and EC members who give their time to contribute to the evolution of Java technology.

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  • Difficulty in Understanding Slideshow script

    - by shining star
    I have taken slide show script from net. But There some functions i cannot understand here is script <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd" > <html lang="en"> <head> <title></title> <script> var interval = 1500; var random_display = 0; var imageDir = "my_images/"; var imageNum = 0; imageArray = new Array(); imageArray[imageNum++] = new imageItem(imageDir + "01.jpg"); imageArray[imageNum++] = new imageItem(imageDir + "02.jpg"); imageArray[imageNum++] = new imageItem(imageDir + "03.jpg"); imageArray[imageNum++] = new imageItem(imageDir + "04.jpg"); imageArray[imageNum++] = new imageItem(imageDir + "05.jpg"); var totalImages = imageArray.length; function imageItem(image_location) { this.image_item = new Image(); this.image_item.src = image_location; return this.image_item.src; } function get_ImageItemLocation(imageObj) { return(imageObj.image_item.src) } alert(imageArray[imageNum].image_item.src); function randNum(x, y) { var range = y - x + 1; return Math.floor(Math.random() * range) + x; } function getNextImage() { if (random_display) { imageNum = randNum(0, totalImages-1); } else { imageNum = (imageNum+1) % totalImages; } var new_image = get_ImageItemLocation(imageArray[imageNum]); //alert(new_image) return(new_image); } function getPrevImage() { imageNum = (imageNum-1) % totalImages; var new_image = get_ImageItemLocation(imageArray[imageNum]); return(new_image); } function prevImage(place) { var new_image = getPrevImage(); document[place].src = new_image; } function switchImage(place) { var new_image = getNextImage(); document[place].src = new_image; var recur_call = "switchImage('"+place+"')"; timerID = setTimeout(recur_call, interval); } </script> </head> <body onLoad="switchImage('slideImg')"> <img name="slideImg" src="27.jpg" width=500 height=375 border=0> <a href="#" onClick="switchImage('slideImg')">play slide show</a> <a href="#" onClick="clearTimeout(timerID)"> pause</a> <a href="#" onClick="prevImage('slideImg'); clearTimeout(timerID)"> previous</a> <a href="#" onClick="switchImage('slideImg'); clearTimeout(timerID)">next </a> </body> </html> here exactly i dont know what does acctually function of get_ImageItemLocation(imageObj) and imageItem(image_location) what does these two functions seperately? Thanks in advance for attention

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  • open Fancybox in tabs

    - by Prashant
    Hello all. I am using PHP + jQuery + Fancybox in my project. I have multiple tabs that get created dynamically. I have got a star icon on every tab header and on clicking them I want to open a fancybox. My tabs are basically ul-li with following dynamic code. $("#tabs").append("<li class='current'><a class='tab' id='tab_" + tabCnt + "<a href='#loginBox_div' class='login_link'> <img src='star.png' style='cursor:pointer'/> </a>" + "<a href='javascript:void(0);' class='remove'>x</a></li>"); in my index file : $(document).ready(function() { $("a.login_link").fancybox({ 'titlePosition' : 'inside', 'transitionIn' : 'none', 'transitionOut' : 'none' }); }); The problem is that when I click on star icon of first tab, the loginBox_div (fancybox) opens properly. But when my second tab is created and when I click on its star icon, the fancybox is not opening although the class is applied in second and successive tabs. No javascript errors too. Please show me the way. Thank you.

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  • How to draw shadows that don't suck?

    - by mystify
    A CAShapeLayer uses a CGPathRef to draw it's stuff. So I have a star path, and I want a smooth drop shadow with a radius of about 15 units. Probably there is some nice functionality in some new iPhone OS versions, but I need to do it myself for a old aged version of 3.0 (which most people still use). I tried to do some REALLY nasty stuff: I created a for-loop and sequentially created like 15 of those paths, transform-scaling them step by step to become bigger. Then assigning them to a new created CAShapeLayer and decreasing it's alpha a little bit on every iteration. Not only that this scaling is mathematically incorrect and sucks (it should happen relative to the outline!), the shadow is not rounded and looks really ugly. That's why nice soft shadows have a radius. The tips of a star shouldn't appear totally sharp after a shadow size of 15 units. They should be soft like cream. But in my ugly solution they're just as s harp as the star itself, since all I do is scale the star 15 times and decrease it's alpha 15 times. Ugly. I wonder how the big guys do it? If you had an arbitrary path, and that path must throw a shadow, how does the algorithm to do that work? Probably the path would have to be expanded like 30 times, point-by-point relative to the tangent of the outline away from the filled part, and just by 0.5 units to have a nice blending. Before I re-invent the wheel, maybe someone has a handy example or link?

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  • SQL database testing: How to capture state of my database for rollback.

    - by Rising Star
    I have a SQL server (MS SQL 2005) in my development environment. I have a suite of unit tests for some .net code that will connect to the database and perform some operations. If the code under test works correctly, then the database should be in the same (or similar) state to how it was before the tests. However, I would like to be able to roll back the database to its state from before the tests run. One way of doing this would be to programmatically use transactions to roll back each test operation, but this is difficult and cumbersome to program; it could easily lead to errors in the test code. I would like to be able to run my tests confidently knowing that if they destroy my tables, I can quickly restore them? What is a good way to save a snapshot of one of my databases with its tables so that I can easily restore the database to it's state from before the test?

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  • Applications are being opened by IE instead of running normally

    - by Star
    I rewrote the Question to add everything that i tried so far. Many of my applications are being opened by Internet Explorer. (not all) For example when I run Firefox.exe (from shortcut) I get IE run instead, with the following URL http: // %22d/ Browser/firefox.exe%22 (I added spaces to prevent link creation) the shortcut target is: "D:\Browser\firefox.exe" when I attempted to open firefox.exe from it's folder the results were the same as the previous one I attempted to open it by cmd, so i navigated with cmd to the FF path then wrote: firefox.exe the was the same except that the URL was: http: // Firefox.exe/ when i jsut write firefox the result URL was: http: // Firefox/ (is it some kind of parameter or something??) trying the same with chrome resulted the same results as the previous tests. I tried creating a new user (adminstartor) but the problem still there. I tried every registry key with exe on it (not sure if i tried them all) no change I tried removing IE but came back by itself somehow, meanwhile IE is removed, FF and its fellow apps gave me open with window I tried reinstalling the applications but it just no use. Time Line: (as requested from @Daredev) I don't know when it happened because the computer is for the company i work for and it was like that since i got it. (The IT there gave up on the problem lon time ago!). applications were installed already are "firefox" and "XPS viewer" . applications were working after the problem everything except what uses browsing (MS help viewer, XPS viewer, firefox-even I've re installed it-, opera, chrome) that what I thought but after installing Maxthon , comodoDragon this theory was blown away. system info: 1- windows xp professional service pack 3 2- system fully patched: Yes 3- anti-virus up to date: Yes 4- same behavior when booting into safe mode: Yes

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  • What are the most likely reasons an application would fail on only one of my servers?

    - by Rising Star
    I have several servers to test new code on. I primarily push out asp.NET web applications. Last week, I had an issue where I installed a newly developed web application on three servers. The three servers all run in separate environments. The application worked fine on two of them, but consistently crashed on the third server with each web request. The problem was eventually traced to an in-house developed .dll file being out of date on the third server. I'm certain that this kind of thing happens all the time. However, there are numerous things that could go wrong to cause this kind of behavior. I spent quite a bit of time tracing this problem. I would like to make a list of things to be suspicious of next time this happens. What are the most likely reasons that a web application would crash on one of my servers while identical code runs fine on another server?

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  • "Access denied" to C:\Documents and Settings after removing malware?

    - by Rising Star
    My Windows 7 PC became infected with the so-called "Malware Protection designed to protect" trojan while I was at work the other day. I managed to kill the process so that the malware is no longer running. The removal instructions specify to delete the following file: c:\documents and settings\all users\application data\defender.exe However, when I click to c:\documents and settings, it says "Access denied". Prior to this malware infection, I've never had any trouble accessing "Documents and Settings" or "Application Data." I read that in Windows 7, c:\documents and settings is a psudonym for c:\users, but I still cannot find the file defender.exe. Suggestions?

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