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  • What is the starting point for Ubuntu app development? [closed]

    - by Roshnal
    I'm thinking of developing software for Ubuntu and other related Linux-based distros (like Linux Mint). But currently am at a loss for where to start. Would learning Python be enough/good? And what are the other things I should know about before starting this kind of developing? And will I be able to publish my apps to a software store like Ubuntu store even if I am from outside USA/UK? If not, what are the options I have to make my apps reach the audience? As a lot of users had asked, I intend to build applications only for Linux (I'm thinking of Gnome) that will be a bit business and enterprise oriented. Currently I am an Oracle certified Java developer in J2SE and J2ME. And I know Python a bit.

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  • Brevets : Motorola gagne à son tour contre Microsoft, un tribunal allemand tranche en faveur du constructeur dans l'affaire Android

    Brevets : Microsoft gagne contre Motorola en Allemagne les terminaux Android du constructeur interdits de ventes sur le territoire Les procès Android se poursuivent avec leurs lots de rebondissements, et laissent peu à peu place à des décisions de justice. Après le verdict de l'affaire Google contre Oracle pour violation de brevets Java dans Android, dont le géant de la recherche en est sorti vainqueur, c'est au tour d'un autre gros feuilleton IT qui dure depuis plus d'un an de livrer sa sentence. Un tribunal régional de Munich en Allemagne a arrêté que les téléphones Android de Motorola Mobility violent les brevets de Microsoft. Plus précisément, ces dispositifs empièten...

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  • java.sql.SQLException: OALL8 is in an inconsistent state On weblogic 9

    - by user179056
    Hello, We are getting this error "java.sql.SQLException: OALL8 is in an inconsistent state " when executing our web app on weblogic 9. The jdk used is 1.5 and database is Oracle10.2g We have switched out oracle drivers ojdbc14.jar with ojdbc5.jar. We have also added orai18n.jar. We have ensured that this change of jar occurs with the web app library as well as other weblogic server classpaths where ojdbc14.jar existed. The problem persists Any pointers would help regards Sameer

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  • fsck on LVM snapshots

    - by Alpha01
    I'm trying to do some file system checks using LVM snapshots of our Logical Volumes to see if any of them have dirty file systems. The problem that I have is that our LVM only has one Volume Group with no available space. I was able to do fsck's on some of the logical volumes using a loopback file system. However my question is, is it possible to create a 200GB loopback file system, and saved it on the same partition/logical volume that I'll be taking a snapshot of? Is LVM smart enough to not take a snapshot copy of the actual snapshot? [root@server z]# vgdisplay --- Volume group --- VG Name Web2-Vol System ID Format lvm2 Metadata Areas 1 Metadata Sequence No 29 VG Access read/write VG Status resizable MAX LV 0 Cur LV 6 Open LV 6 Max PV 0 Cur PV 1 Act PV 1 VG Size 544.73 GB PE Size 4.00 MB Total PE 139450 Alloc PE / Size 139450 / 544.73 GB Free PE / Size 0 / 0 VG UUID BrVwNz-h1IO-ZETA-MeIf-1yq7-fHpn-fwMTcV [root@server z]# df -h Filesystem Size Used Avail Use% Mounted on /dev/sda2 9.7G 3.6G 5.6G 40% / /dev/sda1 251M 29M 210M 12% /boot /dev/mapper/Web2--Vol-var 12G 1.1G 11G 10% /var /dev/mapper/Web2--Vol-var--spool 12G 184M 12G 2% /var/spool /dev/mapper/Web2--Vol-var--lib--mysql 30G 15G 14G 52% /var/lib/mysql /dev/mapper/Web2--Vol-usr 13G 3.3G 8.9G 27% /usr /dev/mapper/Web2--Vol-z 468G 197G 267G 43% /z /dev/mapper/Web2--Vol-tmp 3.0G 76M 2.8G 3% /tmp tmpfs 7.9G 92K 7.9G 1% /dev/shm The logical volume in question is /dev/mapper/Web2--Vol-z. I'm afraid if I created the loopback file system in /dev/mapper/Web2--Vol-z and take a snapshot of it, the disk size will be trippled in size, thus running out of disk space available.

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  • Looking for cheap Wireless router, with USB for attached USB disk drive

    - by geoffc
    I have a 802.11b router at home (DLink DI-614+ (B rev)) and it is working perfectly well for me. I want to replace it though, since it is out of updates, and now several years old and heck, I want a new toy to configure! I was trying to decide what to get. I could care less about 802.11g or n support, since B is fast enough, but every device in my house is now B/G, so G would be fine for me. N buys me little to nothing. (Small enough house that range is a non-issue). The features I realized I want are a USB port for sharing a USB hard drive. I would like to have a central device I could store files on. I do not want to waste the power of an always running PC to do this, so a router seems like the place to go. I would love it, if it could support Vonage VOIP as well, then I could ditch a power brick from a second device (I have the small DLink Vonage VOIP box). All the current examples of this router (with USB drive, yet to find one with VOIP too!) are in the $100+ range, and N and silly, when a B/G is in the $30 range around here.

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  • How to map XMLType with JPA/Hibernate

    - by Moorthy
    How to persist XMLType column via JPA/Hibernate? As per oracle documentation, there are two ways in declaring storage clause for XMLType. They are, LOB and Object-Relational. I dont want to go with LOB. I have schema and register into database. I have not have example on how to design my Entity for XMLType. Does any one know please share it?

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  • Fast file search algorithm for IP addresses

    - by Dave Jarvis
    Question What is the fastest way to find if an IP address exists in a file that contains IP addresses sorted as: 219.93.88.62 219.94.181.87 219.94.193.96 220.1.72.201 220.110.162.50 220.126.52.187 220.126.52.247 Constraints No database (e.g., MySQL, PostgreSQL, Oracle, etc.). Infrequent pre-processing is allowed (see possibilities section) Would be nice not to have to load the file each query (131Kb) Uses under 5 megabytes of disk space File Details One IP address per line 9500+ lines Possible Solutions Create a directory hierarchy (radix tree?) then use is_dir() (sadly, this uses 87 megabytes)

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  • Why would Windows use slower network interface despite route metrics?

    - by tim11g
    On my previous notebook, the Dell/Broadcom wireless adapter had an option to automatically disable wireless when a wired network is connected, so I never dealt with multiple active interfaces. My current system has an Intel wireless adapter, and they apparently haven't figured out how to turn it off when there is a wired connection. Unless I explicitly remember to disable wireless when docked, the connection is active. That shouldn't be a problem (in theory), since the route metric will cause traffic to go over the fastest network (as indicated by the lowest metric in the routing table). Apparently not - I'm running a backup and seeing the throughput at 25Mbps or so (which is consistent with 802.11g) when a perfectly good Gigabit Ethernet interface is also connected. IPv4 Route Table =========================================================================== Active Routes: Network Destination Netmask Gateway Interface Metric 0.0.0.0 0.0.0.0 192.168.1.254 192.168.1.104 10 0.0.0.0 0.0.0.0 192.168.1.254 192.168.1.109 25 127.0.0.0 255.0.0.0 On-link 127.0.0.1 306 127.0.0.1 255.255.255.255 On-link 127.0.0.1 306 127.255.255.255 255.255.255.255 On-link 127.0.0.1 306 Windows has correctly identified the Ethernet interface (.104) and assigned it the lower (preferred) metric. So the Ethernet interface should be used exclusively, right? Why is the Ethernet connection not being used? What other factors are involved? (This is with Windows 7 if it makes a difference)

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  • How to find the file format from binary data

    - by acadia
    Hello, We have a Oracle 9i database and OrderDetails table which has a column to store binary data for product images. These images can be viewed only using a 3rd party tool. I have no idea which 3rd party tool. and I have no idea of the format of the image. Is there anyway from the binary data we can find what format is the image? Thanks

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  • JPA/EJB3 Relationship

    - by sdoca
    I have been reading about JPA and EJB3 and would like to confirm that my understanding of their relationship is correct. Here's what I think I know... JPA is a specification that has been implemented by a number of vendors including: JBoss/Hibernate Oracle/TopLink Essentials (now EclipseLink) Apache/OpenJPA EJB3 is a specification that is implemented in Application Servers including: Glassfish JBoss Is this correct?

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  • SQL Server 2008 Splitting string variable number of token per line

    - by josephj1989
    I have a fairly simple requirement -I have a table with the following (relevant) structure. with cte as( select 1 id,'AA,AB,AC,AD' names union all select 2,'BA,BB' union all select 3,'CA,CB,CC,CD,CE' union all select 4,'DA,DB,DC' ) i would like to create a select statement which will split each "names" column into multiple rows. For example the first row should produce 1,'AA' 1,'AB' 1,'AC' 1,'AD' Can we do it using only SQL. This is failry easy to do in Oracle.

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  • How to: mirror a staging server from a production server

    - by Zombies
    We want to mirror our current production app server (Oracle Application Server) onto our staging server. As it stands right now, various things are out of sync, and what may work in testing/QA can easily fail in production because of settings/patch/etc inconsistencies. I was thinking what would be best is to clone the entire disk daily and push it onto the staging server... Would this be the best method...?

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  • scjp certification future validity

    - by abson
    Is this the right time to go for a scjp certification?With Oracle being the authority won't SCJP lose its value as and when OCJP gets announced instead of the former? my worry is will one be able to go for the next level like SCWCD?

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  • What speed are Wi-Fi management and control frames sent at?

    - by Bryce Thomas
    There are a bunch of different 802.11 Wi-Fi standards, e.g. 802.11a, 802.11b, 802.11g, 802.11n etc. that all support different speeds. Wi-Fi frames are generally categorised as one of the following: Data frames - carry the actual application data Control frames - coordinate when its safe to send/reduce collisions Management frames - handle connection discovery/setup/tear down (e.g. AP discovery, association, disassociation) My question is about whether all these frames, and specifically management frames, are transmitted at the fastest supported speed available, or whether certain classes of frames are transmitted at some lowest common denominator speed. I have noticed that when I put an 802.11b/g only device into monitor mode and capture traffic over the air, I still see management frames (e.g. association/disassociation) being transmitted between my phone and AP which are both 802.11n, even though 802.11n has a higher transfer rate. So I am imagining one of two possibilities: My 802.11n phone/AP had to negotiate a slower speed for some reason and that's why I can see their frames on my 802.11b/g monitoring device. Management frames (and perhaps control frames also?) are sent at a lower speed, and it's only data frames that are transmitted faster with newer 802.11 standards. The reason I would like to know which one of these two possibilities (or perhaps a third possibility) is the case is that I want to capture management frames, and need to know whether using an 802.11b/g card is going to lead to me missing some frames sent at higher speeds than the monitoring card can observe. If management frames are indeed sent at a slower rate, then it's all good. If I just happen to be seeing the management frames because my phone/AP have negotiated a slower rate though, then I need to reconsider what card I use for packet capture.

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  • Reverse proxy apache to weblogic problem

    - by Zlatoroh
    Hello I have apache 2.2 server and welogic 11g running on web server. Apache is set for revers proxy on port 8080, weblogic serves two web pages and it's on port :7001 first page: localhost:7001/e-SPP/app second page: localhost:7001/e-sprejem/app I would like to access this two pages with apache like so: localhost:8080/e-SPP/app localhost:8080/e-sprejem/app Listen 8080 ServerName localhost:8080 <Proxy *> Order deny,allow Allow from all </Proxy> ProxyRequests Off ProxyPreserveHost On RewriteEngine On <Location /e-SPP/app> ProxyPass localhost:7001/e-SPP/app ProxyPassReverse localhost:7001/e-SPP/app </Location> <Location /e-sprejem/app> ProxyPass localhost:7001/e-sprejem/app ProxyPassReverse localhost:7001/e-sprejem/app </Location> This configuration opens my pages bust it's black anw white because CSS and JS aren't loaded! Path to the css over proxy looks like this : localhost:8080/e-SPP/css/style.css which doesn't open the CSS if I change the port to 7001 the it works !!! localhost:7001/e-SPP/css/style.css What should I do that CSS and JS are loaded? Interesting is favicon which is being loaded http://localhost:8080/e-SPP/images/new/favicon.gif Thanks for your help!

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  • JSplitPane giving wrong resize cursor with GTK LAF?

    - by carneades
    Running the official JSplitPane demo http://java.sun.com/docs/books/tutorial/uiswing/components/splitpane.html on my Ubuntu system gives a resize cursor like -- over the divider. The behavior of native split panes gives <-- resize cursors. Does this qualify as a bug that should be reported to Sun (eh, Oracle)? Is there a workaround?

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  • Mixed launch mode not supported: [Profile]

    - by Imran
    Friends, I need to debug a application. The using Oracle Workshop for weblogic 10.3, I have downloaded plugins for TPTP. when i tested working of TPTP in a sample Java Standard-alone application it worked. but when i tried to use it for Web-app which uses Weblogic, it prompting me the above error[in the subject]. Please help.

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