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  • Can an Oracle user get a list of its own running sessions without access to v$session?

    - by Nick Pierpoint
    I have an application that runs a process and I only want one process to run at a time. Some options are: Use an object lock to prevent subsequent processes running. This would be fine, but I want the calling session to return immediately and not wait for the running session to complete. Use a custom Y/N to set whether a process is running or not. I set a "Y" flag at the start of the process and set it to "N" when it finishes or fails. Also fine but feels like I'm re-inventing the wheel and doesn't feel like the way to go. It also falls short if the running session is killed as the flag stays at "Y". Use dbms_application_info.set_module This approach seems the most robust, but if I'm to know there's an existing running process I think I need to be able to query v$session and I don't want this application to have such wide access. Any ideas?

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  • Set seed on Math.random()

    - by Kevin
    Hi - I need to write some junit tests on java code that calls Math.random(). I know that I can set the seed if I was instantiating my own Random object to produce repeatable results. Is there a way to do this also for Math.random() ?

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  • Normalized class design and code first

    - by dc7a9163d9
    There are the following two classes. public class Employee { int EmployeeId { get; set; } public string FirstName { get; set; } public string LastName { get; set; } public string Street { get; set; } public string Street2 { get; set; } public string City { get; set; } public string State { get; set; } public string Zip { get; set; } } public class Company { int CompanyId { get; set; } public string Name { get; set; } public string Street { get; set; } public string Street2 { get; set; } public string City { get; set; } public string State { get; set; } public string Zip { get; set; } } In a DDD seminar, the speaker said the better design should be, class PersonName { public string FirstName { get; set; } public string LastName { get; set; } } class Address { public string Street { get; set; } public string Street2 { get; set; } public string City { get; set; } public string State { get; set; } public string Zip { get; set; } } public class Employee { int EmployeeId { get; set; } public PersonName Name { get; set; } [ForeignKey("EmployerAddress")] public int EmployerAddressId { get; set; } public virtual Address EmployerAddress { get; set; } } public class Company { int CompanyId { get; set; } public string Name { get; set; } [ForeignKey("CompanyAddress")] public int CompanyAddressId { get; set; } public virtual Address CompanyAddress { get; set; } } Is it the optimized design? How the code first generate the PersonName table and link it to Employee?

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  • How to store array in session in asp.net mvc?

    - by mary
    Can you please tell me how to store an array in session and how to retrieve that array from session? I am trying to store one array of type Double and assigning values of the same type but it is showing me an error so please can anyone tell me how to assign values to the array which is in session? Thank You

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  • Set background based on SPAN contents

    - by danit
    I need to set a different background image dependant on the contents of a SPAN: <div class="replies"> <span>2</span> </div> If SPAN = 1 background-image: url('reply.png') no-repeat; If SPAN = 'anything other than 1' background-image: url('replies.png') no-repeat; Can this be done in jQuery?

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  • object reference set in java

    - by landon9720
    I need to create a Set of objects. The concern is I do not want to base the hashing or the equality on the objects' hashCode and equals implementation. Instead, I want the hash code and equality to be based only on each object's reference identity (i.e.: the value of the reference pointer). I'm not sure how to do this in Java. The reasoning behind this is my objects do not reliably implement equals or hashCode, and in this case reference identity is good enough.

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  • Set parameter to super view after dismissModalViewControllerAnimated

    - by user536926
    Hi, I have 2 view (view A and view B). In viewA when I touch a button I execute this code to flip a viewB: viewB.modalTransitionStyle = UIModalTransitionStyleFlipHorizontal; [self presentModalViewController:viewB animated:YES]; And now when I came back to viewA I use this code: [self dismissModalViewControllerAnimated: YES]; //here is my problem I need to set same parameters to viewA when I execute dismiss. How can I do it?

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  • How to set default name to GtkComboBox?

    - by PP
    I want to set my GtkComboBox to have some default value/name, on it as follows: +---------------+---+ | Image Options | X | +---------------+---+ | Image Option 1 | +-------------------+ | Image Option 2 | +-------------------+ | Image Option 3 | +-------------------+ "Image Options" will be just a Title and it will disappear once user selects any option from list. when user click on the list and selects "Image Option 3" then it will display selected value insted of "Image Options". "Image Options" will not be a part of option list.

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  • is it possible to get the class of the interface <Set>

    - by user1164885
    Am having some arguments say (String a, Treeset b, Set c) and i try to get the class by arguments[i].getClass(); of the above arguments.. is it possible to get the class of the interface . ex., Class[] argumentTypes = new Class [arguments.length]; for (int i = 0 ; i < arguments.length ; i++) { argumentTypes[i] = arguments[i].getClass(); }

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  • Extracting array with set::class utility

    - by Sabourinov
    Is there a way to extract the array for a specified id with the set::class utiliy? I can't figure out the XPath. I.E. I would like to extract the array where the id = 1 [Document] = Array ( [0] = Array ( [id] = 1 [filename] = 1.txt ) [1] = Array ( [id] = 2 [filename] = 2.txt ) [2] = Array ( [id] = 3 [filename] = 3.txt ) )

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  • Can't start managed server in Oracle Weblogic 10.3.2

    - by Neuquino
    I installed Oracle SOA Suite 11g. I start the NodeManager successfully. I start the AdminServer successfully. When I go to start the soa serve (soa_server1) I get this output: NMProcess: <Mar 15, 2010 3:33:30 PM> <WARNING> <Exception while starting server 'soa_server1'> NMProcess: java.io.IOException: Server failed to start up. See server output log for more details. NMProcess: at weblogic.nodemanager.server.ServerManager.start(ServerManager.java:331) NMProcess: at weblogic.nodemanager.server.Handler.handleStart(Handler.java:541) NMProcess: at weblogic.nodemanager.server.Handler.handleCommand(Handler.java:116) NMProcess: at weblogic.nodemanager.server.Handler.run(Handler.java:70) NMProcess: at java.lang.Thread.run(Thread.java:619) NMProcess: NMProcess: Mar 15, 2010 3:33:30 PM weblogic.nodemanager.server.Handler handleStart NMProcess: WARNING: Exception while starting server 'soa_server1' NMProcess: java.io.IOException: Server failed to start up. See server output log for more details. NMProcess: at weblogic.nodemanager.server.ServerManager.start(ServerManager.java:331) NMProcess: at weblogic.nodemanager.server.Handler.handleStart(Handler.java:541) NMProcess: at weblogic.nodemanager.server.Handler.handleCommand(Handler.java:116) NMProcess: at weblogic.nodemanager.server.Handler.run(Handler.java:70) NMProcess: at java.lang.Thread.run(Thread.java:619) Error Starting server soa_server1: weblogic.nodemanager.NMException: Exception while starting server 'soa_server1' In the log file I've got this: Enter username to boot WebLogic server:Enter password to boot WebLogic server: There are 1 nested errors: weblogic.management.ManagementException: Booting as admin server, but servername, soa_server1, does not match the admin server name, AdminServer at weblogic.management.provider.internal.RuntimeAccessService.start(RuntimeAccessService.java:67) at weblogic.t3.srvr.ServerServicesManager.startService(ServerServicesManager.java:461) at weblogic.t3.srvr.ServerServicesManager.startInStandbyState(ServerServicesManager.java:166) at weblogic.t3.srvr.T3Srvr.initializeStandby(T3Srvr.java:749) at weblogic.t3.srvr.T3Srvr.startup(T3Srvr.java:488) at weblogic.t3.srvr.T3Srvr.run(T3Srvr.java:446) at weblogic.Server.main(Server.java:67) > <Mar 15, 2010 3:33:30 PM ART> <Notice> <WebLogicServer> <BEA-000365> <Server state changed to FAILED> <Mar 15, 2010 3:33:30 PM ART> <Error> <WebLogicServer> <BEA-000383> <A critical service failed. The server will shut itself down> <Mar 15, 2010 3:33:30 PM ART> <Notice> <WebLogicServer> <BEA-000365> <Server state changed to FORCE_SHUTTING_DOWN> <Mar 15, 2010 3:33:30 PM> <FINEST> <NodeManager> <Waiting for the process to die: 31144> <Mar 15, 2010 3:33:30 PM> <INFO> <NodeManager> <Server failed during startup so will not be restarted> <Mar 15, 2010 3:33:30 PM> <FINEST> <NodeManager> <runMonitor returned, setting finished=true and notifying waiters> Do you have any clue of what is happening? If you need more info, just ask for it. thanks in advance

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  • Varnish default.vcl grace period

    - by Vladimir
    These are my settings for a grace period (/etc/varnish/default.vcl) sub vcl_recv { .... set req.grace = 360000s; ... } sub vcl_fetch { ... set beresp.grace = 360000s; ... } I tested Varnish using localhost and nodejs as a server. I started localhost, the site was up. Then I disconnected server and the site got disconnected in less than 2 min. It says: Error 503 Service Unavailable Service Unavailable Guru Meditation: XID: 1890127100 Varnish cache server Could you tell me what could be the problem? sub vcl_fetch { if (beresp.ttl < 120s) { ##std.log("Adjusting TTL"); set beresp.ttl = 36000s; ##120s; } # Do not cache the object if the backend application does not want us to. if (beresp.http.Cache-Control ~ "(no-cache|no-store|private|must-revalidate)") { return(hit_for_pass); } # Do not cache the object if the status is not in the 200s if (beresp.status >= 300) { # Remove the Set-Cookie header #remove beresp.http.Set-Cookie; return(hit_for_pass); } # # Everything below here should be cached # # Remove the Set-Cookie header ####remove beresp.http.Set-Cookie; # Set the grace time ## set beresp.grace = 1s; //change this to minutes in case of app shutdown set beresp.grace = 360000s; ## 10 hour - reduce if it has negative impact # Static assets - browser caches tpiphem for a long time. if (req.url ~ "\.(css|js|.js|jpg|jpeg|gif|ico|png)\??\d*$") { /* Remove Expires from backend, it's not long enough */ unset beresp.http.expires; /* Set the clients TTL on this object */ set beresp.http.cache-control = "public, max-age=31536000"; /* marker for vcl_deliver to reset Age: */ set beresp.http.magicmarker = "1"; } else { set beresp.http.Cache-Control = "private, max-age=0, must-revalidate"; set beresp.http.Pragma = "no-cache"; } if (req.url ~ "\.(css|js|min|)\??\d*$") { set beresp.do_gzip = true; unset beresp.http.expires; set beresp.http.cache-control = "public, max-age=31536000"; set beresp.http.expires = beresp.ttl; set beresp.http.age = "0"; } ##do not duplicate these settings if (req.url ~ ".css") { set beresp.do_gzip = true; unset beresp.http.expires; set beresp.http.cache-control = "public, max-age=31536000"; set beresp.http.expires = beresp.ttl; set beresp.http.age = "0"; } if (req.url ~ ".js") { set beresp.do_gzip = true; unset beresp.http.expires; set beresp.http.cache-control = "public, max-age=31536000"; set beresp.http.expires = beresp.ttl; set beresp.http.age = "0"; } if (req.url ~ ".min") { set beresp.do_gzip = true; unset beresp.http.expires; set beresp.http.cache-control = "public, max-age=31536000"; set beresp.http.expires = beresp.ttl; set beresp.http.age = "0"; } ## If the request to the backend returns a code other than 200, restart the loop ## If the number of restarts reaches the value of the parameter max_restarts, ## the request will be error'ed. max_restarts defaults to 4. This prevents ## an eternal loop in the event that, e.g., the object does not exist at all. if (beresp.status != 200 && beresp.status != 403 && beresp.status != 404) { return(restart); } if (beresp.status == 302) { return(deliver); } # Never cache posts if (req.url ~ "\/post\/" || req.url ~ "\/submit\/" || req.url ~ "\/ask\/" || req.url ~ "\/add\/") { return(hit_for_pass); } ##check this setting to ensure that it does not cause issues for browsers with no gzip if (beresp.http.content-type ~ "text") { set beresp.do_gzip = true; } if (beresp.http.Set-Cookie) { return(deliver); } ##if (req.url == "/index.html") { set beresp.do_esi = true; ##} ## check if this is needed or should be used # return(deliver); the object return(deliver); } sub vcl_recv { ##avoid leeching of images call hot_link; set req.grace = 360000s; ##2m ## if one backend is down - use another if (req.restarts == 0) { set req.backend = cache_director; ##we can specify individual VMs } else if (req.restarts == 1) { set req.backend = cache_director; } ## post calls should not be cached - add cookie for these requests if using micro-caching # Pass requests that are not GET or HEAD if (req.request != "GET" && req.request != "HEAD") { return(pass); ## return(pass) goes to backend - not cache } # Don't cache the result of a redirect if (req.http.Referer ~ "redir" || req.http.Origin ~ "jumpto") { return(pass); } # Don't cache the result of a redirect (asking for logon) if (req.http.Referer ~ "post" || req.http.Referer ~ "submit" || req.http.Referer ~ "add" || req.http.Referer ~ "ask") { return(pass); } # Never cache posts - ensure that we do not use these strings in our URLs' that need to be cached if (req.url ~ "\/post\/" || req.url ~ "\/submit\/" || req.url ~ "\/ask\/" || req.url ~ "\/add\/") { return(pass); } ## if (req.http.Authorization || req.http.Cookie) { if (req.http.Authorization) { /* Not cacheable by default */ return (pass); } # Handle compression correctly. Different browsers send different # "Accept-Encoding" headers, even though they mostly all support the same # compression mechanisms. By consolidating these compression headers into # a consistent format, we can reduce the size of the cache and get more hits. # @see: http:// varnish.projects.linpro.no/wiki/FAQ/Compression if (req.http.Accept-Encoding) { if (req.url ~ "\.(jpg|png|gif|gz|tgz|bz2|tbz|mp3|ogg|ico)$") { # No point in compressing these remove req.http.Accept-Encoding; } else if (req.http.Accept-Encoding ~ "gzip") { # If the browser supports it, we'll use gzip. set req.http.Accept-Encoding = "gzip"; } else if (req.http.Accept-Encoding ~ "deflate") { # Next, try deflate if it is supported. set req.http.Accept-Encoding = "deflate"; } else { # Unknown algorithm. Remove it and send unencoded. unset req.http.Accept-Encoding; } } # lookup graphics, css, js & ico files in the cache if (req.url ~ "\.(png|gif|jpg|jpeg|css|.js|ico)$") { return(lookup); } ##added on 0918 - check if it causes issues with user specific content if (req.request == "GET" && req.http.cookie) { return(lookup); } # Pipe requests that are non-RFC2616 or CONNECT which is weird. if (req.request != "GET" && req.request != "HEAD" && req.request != "PUT" && req.request != "POST" && req.request != "TRACE" && req.request != "OPTIONS" && req.request != "DELETE") { ##closing connection and calling pipe return(pipe); } ##purge content via localhost only if (req.request == "PURGE") { if (!client.ip ~ purge) { error 405 "Not allowed."; } return(lookup); } ## do we need this? ## return(lookup); }

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  • I'm trying to connect to a user session who's using remote desktop on my windows server 2003

    - by hitham
    I'm trying to connect to a user session who's using remote desktop on my windows server 2003 × 2024, from task manager users but it comes up with Connect Password Required. I tried his password that he uses to log on to RD but it wont work, i tried every password i know of and nothing. How do I connect to his session? What password do i use and if that's the one why wont it work? Thanks.

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