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  • Question regarding the method local innerclasses accesing the local variables of the method

    - by flash
    Hi I was going through the SCJP book about the innerclasses, and found this statement, it goes something like this. "A method local class can only refer to the local variables which are marked final" and in the explanation the reason specified is about the scope and lifetime of the local class object and the local variables on the heap, But I am unable to understand that.am I missing anything here about 'final'??

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  • How do I dispatch to a method based on a parameter's runtime type in C# < 4?

    - by Evan Barkley
    I have an object o which guaranteed at runtime to be one of three types A, B, or C, all of which implement a common interface I. I can control I, but not A, B, or C. (Thus I could use an empty marker interface, or somehow take advantage of the similarities in the types by using the interface, but I can't add new methods or change existing ones in the types.) I also have a series of methods MethodA, MethodB, and MethodC. The runtime type of o is looked up and is then used as a parameter to these methods. public void MethodA(A a) { ... } public void MethodB(B b) { ... } public void MethodC(C c) { ... } Using this strategy, right now a check has to be performed on the type of o to determine which method should be invoked. Instead, I would like to simply have three overloaded methods: public void Method(A a) { ... } // these are all overloads of each other public void Method(B b) { ... } public void Method(C c) { ... } Now I'm letting C# do the dispatch instead of doing it manually myself. Can this be done? The naive straightforward approach doesn't work, of course: Cannot resolve method 'Method(object)'. Candidates are: void Method(A) void Method(B) void Method(C)

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  • calling Overloaded method from a generic method.

    - by asela38
    How to create a generic method which can call overloaded methods? I tried but it gives a compilation error. Test.java:19: incompatible types found : java.lang.Object required: T T newt = getCloneOf(t); ^ import java.util.*; public class Test { private Object getCloneOf(Object s) { return new Object(); } private String getCloneOf(String s) { return new String(s); } private <T> Set<T> getCloneOf(Set<T> set){ Set<T> newSet = null; if( null != set) { newSet = new HashSet<T>(); for (T t : set) { T newt = getCloneOf(t); newSet.add(newt); } } } }

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  • Ruby - Call method passing values of array as each parameter

    - by Markus Orreilly
    I'm currently stuck on this problem. I've hooked into the method_missing function in a class I've made. When a function is called that doesn't exist, I want to call another function I know exists, passing the args array as all of the parameters to the second function. Does anyone know a way to do this? For example, I'd like to do something like this: class Blah def valid_method(p1, p2, p3, opt=false) puts "p1: #{p1}, p2: #{p2}, p3: #{p3}, opt: #{opt.inspect}" end def method_missing(methodname, *args) if methodname.to_s =~ /_with_opt$/ real_method = methodname.to_s.gsub(/_with_opt$/, '') send(real_method, args) # <-- this is the problem end end end b = Blah.new b.valid_method(1,2,3) # output: p1: 1, p2: 2, p3: 3, opt: false b.valid_method_with_opt(2,3,4) # output: p1: 2, p2: 3, p3: 4, opt: true (Oh, and btw, the above example doesn't work for me)

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  • objective-c description method

    - by rocity
    Maybe I'm stupid...and this is my first question so forgive me...but when I run this code, I get the following output: (FROG idle:0 animating:0 rect:(null) position:{{1,2}{3,4}} tongue:{5,6}) This is wrong because it seems to be skipping the rect format string and placing everything displaced by one. So idle and animating are what i expect, then rect is skipped, but the result from NSStringFromCGRect(self.rect) is placed into position, then the result for position is pushed to tongue, then tongue is not displayed at all. I'm at a loss. - (NSString *)description{ return [NSString stringWithFormat:@"(FROG idle:%i animating:%i rect:%@ position:%@ tongue:%@)", self.idleTime, self.animating, NSStringFromCGRect(self.rect), NSStringFromCGPoint(self.position), tongue ]; }

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  • Passing parameters to web service method in c#

    - by wafa.cs1
    Hello I'm developing an android application .. which will send location data to a web service to store in the server database. In Java: I've used REST protocol so the URI is: HttpPost request = new HttpPost("http://trafficmapsa.com/GService.asmx/GPSdata? lon="+Lon+"&Lat="+Lat+"&speed="+speed); In Asp.net (c#) web service will be: [WebMethod] public CountryName GPSdata(Double Lon, Double Lat, Double speed) { after passing the data from android ..nothing return in back .. and there is no data in the database!! Is there any library missing in the CS file!! I cannot figure out what is the problem.

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  • Java synchronized method lock on object, or method?

    - by wuntee
    If I have 2 synchronized methods in the same class, but each accessing different variables, can 2 threads access those 2 methods at the same time? Does the lock occur on the object, or does it get as specific as the variables inside the synchronized method? Example: class x{ private int a; private int b; public synchronized void addA(){ a++; } public synchronized void addB(){ b++; } } Can 2 threads access the same instance of class x performing x.addA() and x.addB() at the same time?

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  • PHP OOP: Method Chaining

    - by Isis
    I have the following code, <?php class Templater { static $params = array(); public static function assign($name, $value) { self::$params[] = array($name => $value); } public static function draw() { self::$params; } } $test = Templater::assign('key', 'value'); $test = Templater::draw(); print_r($test); How can I alter this script so I could use this? $test = Templater::assign('key', 'value')->assign('key2', 'value2')->draw(); print_r($test);

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  • Hashing a python method to regenerate output when method is modified

    - by Seth Johnson
    I have a python method that has a deterministic result. It takes a long time to run and generates a large output: def time_consuming_method(): # lots_of_computing_time to come up with the_result return the_result I modify time_consuming_method from time to time, but I would like to avoid having it run again while it's unchanged. [Time_consuming_method only depends on functions that are immutable for the purposes considered here; i.e. it might have functions from Python libraries but not from other pieces of my code that I'd change.] The solution that suggests itself to me is to cache the output and also cache some "hash" of the function. If the hash changes, the function will have been modified, and we have to re-generate the output. Is this possible or a ridiculous idea? If this isn't a terrible idea, is the best implementation to write f = """ def ridiculous_method(): a = # # lots_of_computing_time return a """ , use the hashlib module to compute a hash for f, and use compile or eval to run it as code?

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  • mod_rewrite rule to work with get method

    - by Davi
    I'm using this rule: RewriteRule ^(.*)$ public/$1 [L] and in public folder I use: $url = $_GET['url']; when I try to acess something on url using slash or it works fine and I get: /cities/display/45 => Array ( [0] => cities [1] => display [2] => 45) But when I try to submit a form, i'm not able to acces the data: /cities/?field1=value1&field2=value2 => Array ( [0] => cities) How can I solve this? I need a rule that also gets form's submited values Thanks

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  • VSC++, virtual method at bad adress, curious bug

    - by antoon.groenewoud
    Hello, This guy: virtual phTreeClass* GetTreeClass() const { return (phTreeClass*)m_entity_class; } When called, crashed the program with an access violation, even after a full recompile. All member functions and virtual member functions had correct memory adresses (I hovered mouse over the methods in debug mode), but this function had a bad memory adress: 0xfffffffc. Everything looked okay: the 'this' pointer, and everything works fine up until this function call. This function is also pretty old and I didn't change it for a long time. The problem just suddenly popped up after some work, which I commented all out to see what was doing it, without any success. So I removed the virtual, compiled, and it works fine. I add virtual, compiled, and it still works fine! I basically changed nothing, and remember that I did do a full recompile earlier, and still had the error back then. I wasn't able to reproduce the problem. But now it is back. I didn't change anything. Removing virtual fixes the problem. Sincerely, Antoon

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  • Creating a method that is simultaneously an instance and class method

    - by Mike Axiak
    In Python, I'd like to be able to create a function that behaves both as a class function and an instance method, but with the ability to change behaviors. The use case for this is for a set of serializable objects and types. As an example: >>> class Thing(object): #... >>> Thing.to_json() 'A' >>> Thing().to_json() 'B' I know that given the definition of classmethod() in funcobject.c in the Python source, this looks like it'd be simple with a C module. Is there a way to do this from within python? Thanks!

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  • C++, create an instance from a static method

    - by Manux
    Hello, let's say I want my users to use only one class, say SpecialData. Now, this data class would have many methods, and depending on the type of data, the methods do different things, internally, but return externally similar results. Therefore my wanting to have one "public" class and other "private", child classes that would change the behavior of methods, etc... It would be amazingly more simple for some types of data that need to be built to do something like this: SpecialData& sm = SpecialData::new_supermatrix(); and new_supermatrix() would return a SuperMatrix instance, which inherits from most behaviors of SpecialData. my header: static SpecialData& new_supermatrix(); my cpp: SpecialData& SpecialData::new_supermatrix()(){ return SuperMatrix(MATRIX_DEFAULT_MAGNITUDE,1000,1239,FLOAT32,etc...); } The problem is, I get this error, which is probably logical due to the circumstances: invalid initialization of non-const reference of type ‘SpecialData&’ from a temporary of type ‘SpecialData’ So, any ideas?

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  • PHP OOP: method?

    - by Isis
    Hello <?php class Templater { static $params = array(); public static function assign($name, $value) { self::$params[] = array($name => $value); } public static function draw() { self::$params; } } $test = Templater::assign('key', 'value'); $test = Templater::draw(); print_r($test); How to alter this script so I could use this:? $test = Templater::assign('key', 'value')->assign('key2', 'value2')-draw(); print_r($test);

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  • Method to register method to be called when event is raised

    - by zaidwaqi
    I have a Panel which contains 20 PictureBox controls. If a user clicks on any of the controls, I want a method within the Panel to be called. How do I do this? public class MyPanel : Panel { public MyPanel() { for(int i = 0; i < 20; i++) { Controls.Add(new PictureBox()); } } // DOESN'T WORK. // function to register functions to be called if the pictureboxes are clicked. public void RegisterFunction( <function pointer> func ) { foreach ( Control c in Controls ) { c.Click += new EventHandler( func ); } } } How do I implement RegisterFunction()? Also, if there are cool C# features that can make the code more elegant, please share.

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  • Oracle Unified Method (OUM) Release 5.6

    - by user714714
    ORACLE® UNIFIED METHOD RELEASE 5.6 Oracle’s Full Lifecycle Methodfor Deploying Oracle-Based Business Solutions About | Release | Access | Previous Announcements About Oracle is evolving the Oracle® Unified Method (OUM) to achieve the vision of supporting the entire Enterprise IT Lifecycle, including support for the successful implementation of every Oracle product. OUM replaces Legacy Methods, such as AIM Advantage, AIM for Business Flows, EMM Advantage, PeopleSoft's Compass, and Siebel's Results Roadmap. OUM provides an implementation approach that is rapid, broadly adaptive, and business-focused. OUM includes a comprehensive project and program management framework and materials to support Oracle's growing focus on enterprise-level IT strategy, architecture, and governance. Release OUM release 5.6 provides support for Application Implementation, Cloud Application Implementation, and Software Upgrade projects as well as the complete range of technology projects including Business Intelligence (BI) and Enterprise Performance Management (EPM), Enterprise Security, WebCenter, Service-Oriented Architecture (SOA), Application Integration Architecture (AIA), Business Process Management (BPM), Enterprise Integration, and Custom Software. Detailed techniques and tool guidance are provided, including a supplemental guide related to Oracle Tutor and UPK. This release features: Business Process Management (BPM) Project Engineering Supplemental Guide Cloud Roadmap View and Supplemental Guide Enterprise Security View and Supplemental Guide Service-Oriented Architecture (SOA) Governance Implementation Supplemental Guide "Tailoring OUM for Your Project" White Paper OUM Microsoft Project Workplan Template and User's Guide Mappings: OUM to J.D. Edwards OneMethodology, OUM Roles to Task Techniques: Determining Number of Iterations, Managing an OUM Project using Scrum Templates: Scrum Workplan (WM.010), Siebel CRM Enhanced / Updated: Manage Focus Area reorganized by Activities for all Views Oracle Architecture Development Process (OADP) View updated for OADP v3.0 Oracle Support Services Supplemental Guide expanded to include guidance related to IT Change Management Oracle User Productivity Kit Professional (UPK Pro) and Tutor Supplemental Guide expanded guidance for UPK Pro Service-Oriented Architecture (SOA) Application Integration Architecture (AIA) Supplemental Guide updated for SOA Tactical Project Delivery View Service-Oriented Architecture (SOA) Tactical Project Delivery View expanded to include additional tasks Siebel CRM Supplemental Guide expanded task guidance and added select Siebel-specific OUM templates WebCenter View and Supplemental Guide updated for WebCenter Portal and Content Management For a comprehensive list of features and enhancements, refer to the "What's New" page of the Method Pack. Upcoming releases will provide expanded support for Oracle's Enterprise Application suites including product-suite specific materials and guidance for tailoring OUM to support various engagement types. Access Oracle Customers Oracle customers may obtain copies of the method for their internal use – including guidelines, templates, and tailored work breakdown structure – by contracting with Oracle for a consulting engagement of two weeks or longer and meeting some additional minimum criteria. Customers, who have a signed consulting contract with Oracle and meet the engagement qualification criteria, are permitted to download the current release of OUM for their perpetual use. They may also obtain subsequent releases published during a renewable, three-year access period. Training courses are also available to these customers. Contact your local Oracle Sales Representative about enrolling in the OUM Customer Program. Oracle PartnerNetwork (OPN) Diamond, Platinum, and Gold Partners OPN Diamond, Platinum, and Gold Partners are able to access the OUM method pack, training courses, and collateral from the OPN Portal at no additional cost: Go to the OPN Portal at partner.oracle.com. Select the "Partners (Login Required)" tab. Login. Select the "Engage with Oracle" tab. From the Engage with Oracle page, locate the "Applications" heading. From the Applications heading, locate and select the "Oracle Unified Method" link. From the Oracle Unified Method Knowledge Zone, select the "Implement" tab. From the Implement tab, select the "Tools and Resources" link. Locate and select the "Oracle Unified Method (OUM)" link. Previous Announcements Oracle Unified Method (OUM) Release 5.6 Oracle Unified Method (OUM) Release 5.5 Oracle Unified Method (OUM) Release 5.4 Oracle EMM Advantage Retired Retirement of Oracle EMM Advantage Planned for December 01, 2011

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  • Can't get an IBM xSeries 345 server to load Windows Server 2003 using ServerGuide utility

    - by Kyle Noland
    I have a client that has an IBM xSeries 345 eServer. Per the IBM support website, I have downloaded the ServerGuide Setup 7.4.17 installation ISO and burned a bootable CD. The CD boots fine and loads the utility. I walk through the following screens without any issue: Set the date and Time Detect the IBM ServeRAID card and install the latest firmware Clear the hard disks Set up the RAID array The next step is format the NOS partition. I select my partition size and the utility goes through the following steps: Creating NOS partition Formatting NOS partition (NTFS) Copying W32 files The copying W32 files takes about 10 minutes. I see the CD drive and disks working hard. When the copying is complete, I'm taken to a blank page just NOS Partitioning at the top. At the bottom of the screen are the familiar Back and Exit buttons. I see the place where the Next button should be, and if I click on it I can tell there is something there, but the space is empty. No button is displayed and clicking the empty spot doesn't ever take me to the next screen. I can't load the OS until I get past this part. I have already tried: Burning multiple copies and versions of the ServerGuide CD Letting the final screen just sit there over the weekend thinking it might advance after syncing the drives or something Has anybody else seen this? I'm really at a loss here. EDIT: I found another person who has the exact same problem as me: http://www.ibm.com/developerworks/forums/thread.jspa?messageID=14451763

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  • Raid-1 Western Digital Green AARS, cloning and WD Align Utility

    - by Jaguar
    Hello all, My current setup runs on top of 2x Western Digital 2500KS drives on Raid-1, using the motherboard's 780G raid controller, on WinXP. Everything is fine, but the drives are a bit noisy. I am considering buying 2x WD6400AARS disks which are the 640GB slower 'green' drives, but also feature the Advanced Formatting 4KB sectors. This means that for WinXP the partition will have to be aligned to work properly, else there is a performance penalty. There are 2 questions here: The Green drives from WD are all slower and are (according to WD) susceptible to drop-out's from the controller. Has anyone any experience in this matter? Is there a possibility the controller will drop a drive? If so, can i do anything about it? Secondly, western digital gives a utility to perform the alignment on the partition. The thing is, will the utility see the drives in question as the operating system only sees 1 logical disk? I will be making the transition using a cloning tool (most probably norton ghost) unless i don't find a solution or a clear answer, in which case i'll just buy a win 7 license and make a clean install... thx in advance

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  • Can't get an IBM xSeries 345 server to load Windows Server 2003 using ServerGuide utility

    - by Kyle Noland
    I have a client that has an IBM xSeries 345 eServer. Per the IBM support website, I have downloaded the ServerGuide Setup 7.4.17 installation ISO and burned a bootable CD. The CD boots fine and loads the utility. I walk through the following screens without any issue: Set the date and Time Detect the IBM ServeRAID card and install the latest firmware Clear the hard disks Set up the RAID array The next step is format the NOS partition. I select my partition size and the utility goes through the following steps: Creating NOS partition Formatting NOS partition (NTFS) Copying W32 files The copying W32 files takes about 10 minutes. I see the CD drive and disks working hard. When the copying is complete, I'm taken to a blank page just NOS Partitioning at the top. At the bottom of the screen are the familiar Back and Exit buttons. I see the place where the Next button should be, and if I click on it I can tell there is something there, but the space is empty. No button is displayed and clicking the empty spot doesn't ever take me to the next screen. I can't load the OS until I get past this part. I have already tried: Burning multiple copies and versions of the ServerGuide CD Letting the final screen just sit there over the weekend thinking it might advance after syncing the drives or something Has anybody else seen this? I'm really at a loss here.

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  • sort utility on cyrillic text

    - by Anton
    I have to sort some lines of cyrillic characters and I want to use the sort utility (on MAC OS X 10.6). The problem is that result is incorrect. I take the text into clipboard, then run pbpaste | sort This is plaintext data, and I also tried passing a file to the sort command. My source data is ??????? ????? ???? ???? ?????? ??????? ???????? ?????? ? ????? ??????????????? ?????????? ???? ?????? And after sorting I get ???? ???? ???? ????? ?????? ?????? ?????? ? ????? ??????????????? ??????? ??????? ???????? ?????????? Theese lines aren’t even grouped by first letter. I tried option -d, but then I get an error sort: string comparison failed: Illegal byte sequence sort: Set LC_ALL='C' to work around the problem. sort: The strings compared were \320\321\321\321' and\320\320\320\321\321\320’. Exporting the variable as recommended doesn’t solve the problem. What can I do to use the sort utility for such a task? Any additional info is necessary?

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  • How to disable Utility Manager (Windows Key + U)

    - by Skizz
    How do I disable the Windows + U hotkey in Windows XP? Alternatively, how do I stop the utility manager from being active? The two are related. The utilty manager is currently providing a potential security hole and I need to remove it[1]. The system I'm developing uses a custom Gina to log in and start a custom shell. This removes most Windows Key hotkeys but the Win + U still pops up the manager app. Update: Things I've tried and don't work: NoWinKeys registry setting - this only affects explorer hotkeys; Renaming utilman.exe - program reappears next login; Third party software - not really an option, these machines are audited by the clients and additional, third party software would be unlikely to be accepted. Also, the proedure needs to be reasonably straightforward - this has to be done by field service engineers to existing machines (machines currently in Russia, Holland, France, Spain, Ireland and USA). [1] The hole is via the internet options in the help viewer the utility app links to.

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  • Method binding to base method in external library can't handle new virtual methods "between"

    - by Berg
    Lets say I have a library, version 1.0.0, with the following contents: public class Class1 { public virtual void Test() { Console.WriteLine( "Library:Class1 - Test" ); Console.WriteLine( "" ); } } public class Class2 : Class1 { } and I reference this library in a console application with the following contents: class Program { static void Main( string[] args ) { var c3 = new Class3(); c3.Test(); Console.ReadKey(); } } public class Class3 : ClassLibrary1.Class2 { public override void Test() { Console.WriteLine("Console:Class3 - Test"); base.Test(); } } Running the program will output the following: Console:Class3 - Test Library:Class1 - Test If I build a new version of the library, version 2.0.0, looking like this: public class Class1 { public virtual void Test() { Console.WriteLine( "Library:Class1 - Test V2" ); Console.WriteLine( "" ); } } public class Class2 : Class1 { public override void Test() { Console.WriteLine("Library:Class2 - Test V2"); base.Test(); } } and copy this version to the bin folder containing my console program and run it, the results are: Console:Class3 - Test Library:Class1 - Test V2 I.e, the Class2.Test method is never executed, the base.Test call in Class3.Test seems to be bound to Class1.Test since Class2.Test didn't exist when the console program was compiled. This was very surprising to me and could be a big problem in situations where you deploy new versions of a library without recompiling applications. Does anyone else have experience with this? Are there any good solutions? This makes it tempting to add empty overrides that just calls base in case I need to add some code at that level in the future...

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