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• When to use primitive and when complex types in java

  - by Gandalf StormCrow

  Hello, In which case should you use primitive types(int) or complex types(Integer)? Ex: http://stackoverflow.com/questions/2508918/why-java-compiler-does-not-like-integer-as-type-for-values-in-hashmap this example works with Integer type. Should we always use Integer as a complex type?

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• g++ compiler complains about conversions between related types (from int to enum, from void* to clas

  - by Slav

  g++ compiler complains about conversions between related types (from int to enum, from void* to class*, from const char* to unsigned char*, etc.). Compiler handles such convertions as errors and won't compile furthermore. It occurs only when I compile using Dev-C++ IDE, but when I compile the same code (using the compiler which Dev-C++ uses) such errors (even warnings) do not appears. How to mute errors of such types?

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• Should Java raw types be deprecated?

  - by Paul Croarkin

  Should a future release of Java deprecate the use of raw types to force the migration to generics? I could also see having raw types not allowed by default but allowing them via a compile flag for legacy code.

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• Unity view Registered Types during debug

  - by Jon Archway

  Possibly a stupid question, but during debug I simply want to see the types that have been registered with my Unity container. I have tried going through the container in the watch window, but can't seem to find what I am looking for? I am expecting there to be a list of registered types somewhere? Thanks in advance

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• Multiple Content Types with overlapping Column Names

  - by copypastecoder

  I have two InfoPath form based content types with overlapping column names. Can I assign these two content types to single list?

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• Axis2 Web Service Client Generation - Types without modifying the client

  - by sstarcher

  Is it possible with Axis2 and Eclipse to generate a Web Service client and have it use java types that you already have in packages instead of creating it's own types. Reason being of course if I have type A already created and it creates it's own Type A I can't just assign variable of type A to variable of type B. The wsdl is being generated from a Web Service deployed to an application server. If it's not possible to generate it from that would it be possible to generate a client from the already existing java files.

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• Append INPUT to TEXTAREA as being types in JQuery

  - by Ricky

  I have an INPUT text box. As someone types into the INPUT text box, i need it to append/add-to a TEXTAREA value. Lets say user types '12345' into the text box. The textarea (default value="Comment: ") will automatically add: 'Comment: 12345'. Adding '12345' as they type.

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• g++ compiler complains about conversions between relative types (from int to enum, from void* to cla

  - by Slav

  g++ compiler complains about conversions between relative types (from int to enum, from void* to class*, from const char* to unsigned char*, etc.). Compiler handles such convertions as errors and won't compile furthermore. It occurs only when I compile using Dev-C++ IDE, but when I compile the same code (using the compiler which Dev-C++ uses) such errors (even warnings) do not appears. How to mute errors of such types?

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• Converting different registry value types to string?

  - by Tom

  Hi, im traversing through the registry, taking the values of the keys and storing them as strings. I have discovered there are many different types. Some of these types are causing my filestream writer to fail. Is it possible to convert all of the below into a string form. The actual data value is not important, just the ability to differentiate between different values. DWORD ExpandString Binary (is this just the same as byte[] ?) MultiString

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• get premitive , complex, ArrayEnumerable types

  - by john

  i have a separate class for each of my database entities and when i create an object of my class to reference the properties of a class it returns a circular reference which contains properties of other entities too that are related via FK ... to remove the circular reference i want to first make a copy of the object through "context proxy object" copy and then get the primitive, complex, arrayEnumerable types of that object and strip off these types from the object and then the object get returned by web service....

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• different types of parsing

  - by kostas_menu

  I have read the tutorial from ibm about xml parsing (http://www.ibm.com/developerworks/opensource/library/x-android/) In this example,there are four types of xml parsing.Dom,Sax,Android Sax and xml_pull.Could you please tell me what's the difference between these four types and when i have to use each one? Also,with every way of xml parsing in this tutorial,the feeds are shown in a listView. What i have to do in order to appear every announcement in a btn for example? thanks for your time!Merry Christmas:D

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• Java constructor using generic types

  - by user37903

  I'm having a hard time wrapping my head around Java generic types. Here's a simple piece of code that in my mind should work, but I'm obviously doing something wrong. Eclipse reports this error in BreweryList.java: The method initBreweryFromObject() is undefined for the type <T> The idea is to fill a Vector with instances of objects that are a subclass of the Brewery class, so the invocation would be something like: BreweryList breweryList = new BreweryList(BrewerySubClass.class, list); BreweryList.java package com.beerme.test; import java.util.Vector; public class BreweryList<T extends Brewery> extends Vector<T> { public BreweryList(Class<T> c, Object[] j) { super(); for (int i = 0; i < j.length; i++) { T item = c.newInstance(); // initBreweryFromObject() is an instance method // of Brewery, of which <T> is a subclass (right?) c.initBreweryFromObject(); // "The method initBreweryFromObject() is undefined // for the type <T>" } } } Brewery.java package com.beerme.test; public class Brewery { public Brewery() { super(); } protected void breweryMethod() { } } BrewerySubClass.java package com.beerme.test; public class BrewerySubClass extends Brewery { public BrewerySubClass() { super(); } public void androidMethod() { } } I'm sure this is a complete-generics-noob question, but I'm stuck. Thanks for any tips!

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• Difference between adding MIME types in IIS via Websites vs Local Computer?

  - by Alex Key

  What is the difference between adding MIME types in these 2 different situations? When in IIS 6 manager... Right click on the computer name (local computer) properties mime types Right click on the "Web sites" folder properties http headers mime types I'm guessing that perhaps option 1 adds MIME types for FTP also? However if that were true i'd expect to be able to add MIME types specifically in the properties of FTP (and not just websites). thanks for your help.

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• Lua Alien Module - Trouble using WriteProcessMemory function, unsure on types (unit32)

  - by jefferysanders

  require "alien" --the address im trying to edit in the Mahjong game on Win7 local SCOREREF = 0x0744D554 --this should give me full access to the process local ACCESS = 0x001F0FFF --this is my process ID for my open window of Mahjong local PID = 1136 --function to open proc local op = alien.Kernel32.OpenProcess op:types{ ret = "pointer", abi = "stdcall"; "int", "int", "int"} --function to write to proc mem local wm = alien.Kernel32.WriteProcessMemory wm:types{ ret = "long", abi = "stdcall"; "pointer", "pointer", "pointer", "long", "pointer" } local pRef = op(ACCESS, true, PID) local buf = alien.buffer("99") -- ptr,uint32,byte arr (no idea what to make this),int, ptr print( wm( pRef, SCOREREF, buf, 4, nil)) --prints 1 if success, 0 if failed So that is my code. I am not even sure if I have the types set correctly. I am completely lost and need some guidance. I really wish there was more online help/documentation for alien, it confuses my poor brain. What utterly baffles me is that it WriteProcessMemory will sometimes complete successfully (though it does nothing at all, to my knowledge) and will also sometimes fail to complete successfully. As I've stated, my brain hurts. Any help appreciated.

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• Silverlight WCF service consuming inherited types in datacontract

  - by RemotecUk

  Hi, Im trying to consume a WCF service in silverlight... What I have done is to create two seperate assemblies for my datacontracts... Assembly that contains all of my types marked with data contracts build against .Net 3.5 A Silverlight assembly which links to files in the 1st assembly. This means my .Net app can reference assembly 1 and my silverlight app assembly 2. This works fine and I can communicate across the service. The problems occur when I try to transfer inherited classed. I have the following class stucture... IFlight - an interface for all types of flights. BaseFlight : IFlight - a baseflight flight implements IFlight AdhocFlight : BaseFlight, IFlight - an adhoc flight inherits from baseflight and also implements IFlight. I can successfully transfer base flights across the service. However I really need to be able to transfer objects of IFlight across the interface as I want one operation contract that can transfer many types of flight... public IFlight GetFlightBooking() { AdhocFlight af = new AdhocFlight(); return af; } ... should work I think? However I get the error: "The server did not provide a meaningful reply; this might be caused by a contract mismatch, a premature session shutdown or an internal server error." Any ideas would be appreciated.

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• Haskell Linear Algebra Matrix Library for Arbitrary Element Types

  - by Johannes Weiß

  I'm looking for a Haskell linear algebra library that has the following features: Matrix multiplication Matrix addition Matrix transposition Rank calculation Matrix inversion is a plus and has the following properties: arbitrary element (scalar) types (in particular element types that are not Storable instances). My elements are an instance of Num, additionally the multiplicative inverse can be calculated. The elements mathematically form a finite field (??2256). That should be enough to implement the features mentioned above. arbitrary matrix sizes (I'll probably need something like 100x100, but the matrix sizes will depend on the user's input so it should not be limited by anything else but the memory or the computational power available) as fast as possible, but I'm aware that a library for arbitrary elements will probably not perform like a C/Fortran library that does the work (interfaced via FFI) because of the indirection of arbitrary (non Int, Double or similar) types. At least one pointer gets dereferenced when an element is touched (written in Haskell, this is not a real requirement for me, but since my elements are no Storable instances the library has to be written in Haskell) I already tried very hard and evaluated everything that looked promising (most of the libraries on Hackage directly state that they wont work for me). In particular I wrote test code using: hmatrix, assumes Storable elements Vec, but the documentation states: Low Dimension : Although the dimensionality is limited only by what GHC will handle, the library is meant for 2,3 and 4 dimensions. For general linear algebra, check out the excellent hmatrix library and blas bindings I looked into the code and the documentation of many more libraries but nothing seems to suit my needs :-(. Update Since there seems to be nothing, I started a project on GitHub which aims to develop such a library. The current state is very minimalistic, not optimized for speed at all and only the most basic functions have tests and therefore should work. But should you be interested in using or helping out developing it: Contact me (you'll find my mail address on my web site) or send pull requests.

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• Combining multiple content types into a single search result with Drupal 6 and Views 2

  - by Chaulky

  Hi all, I need to create a somewhat advanced search functionality for my Drupal 6 site. I have a one-to-many relationship between two content types and need to search them, respecting that relationship. To make things more clear... I have content types TypeX and TypeY. TypeY has a node reference CCK field that relates it to a single node of TypeX. So, many nodes of TypeY reference the same node of TypeX. I want to use Views 2 to create a search page for these nodes. I want each search result to be a node of TypeX, along with all the nodes of TypeY that reference it. I know I could just theme the individual results and use a view to add the nodes of TypeY to the single node of TypeX... but that won't allow users to actually search TypeY... it would only search TypeX and merely display some nodes of TypeY along with it. Is there anyway to get the search to account for content in nodes of both content types, but merge the TypeY results into the "parent" node of TypeX? In database terms, it seems like I need to do a join, then filter by the search terms. But I can't figure out how to do this in Views. Thanks for any help i can get!!!

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• Service reference not generating client types

  - by Cranialsurge

  I am trying to consume a WCF service in a class library by adding a service reference to it. In one of the class libraries it gets consumed properly and I can access the client types in order to generate a proxy off of them. However in my second class library (or even in a console test app), when i add the same service reference, it only exposes the types that are involved in the contract operations and not the client type for me to generate a proxy against. e.g. Endpoint has 2 services exposed - ISvc1 and ISvc2. When I add a service reference to this endpoint in the first class library I get ISvc1Client andf ISvc2Client to generate proxies off of in order to use the operations exposed via those 2 contracts. In addition to these clients the service reference also exposes the types involved in the operations like (type 1, type 2 etc.) this is what I need. However when i try to add a service reference to the same endpoing in another console application or class library only Type 1, Type 2 etc. are exposed and not ISvc1Client and ISvc2Client because of which I cannot generate a proxy to access the operations I need. I am unable to determine why the service reference gets properly generated in one class library but not in the other or the test console app.

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• Fluently.Configure without explicitly entering types.

  - by user86431

  I'm trying to take my fluent mapping past the basic stuff that I've found here: http://wiki.fluentnhibernate.org/Fluent_configuration Where they explicitly add each type like this: ISessionFactory localFactory = Fluently.Configure() .Database( ObjectFactory.GetInstance<SybaseConfiguration>().GetSybaseDialect( "BLAH" ) ) .Mappings( m => { m.HbmMappings .AddFromAssemblyOf<StudTestEO>(); m.FluentMappings .AddFromAssemblyOf<StudTestEO>() .AddFromAssemblyOf<StudTestEOMap>(); } ) .BuildSessionFactory(); .BuildSessionFactory(); and trying to be able to take the assembly, get a list of it's types and pass that in instead kindf like this string FullEoAssemblyFName = webAccessHdl.GetMapPath(EoAssemblyFName); string FullMapAssemblyFName = webAccessHdl.GetMapPath(MapAssemblyFName); string FullConfigFileName = webAccessHdl.GetMapPath("~/" + NHibernateConfigFileName); if (!File.Exists(FullEoAssemblyFName)) throw new Exception("GetFactoryByConfigFile, EoAssemblyFName does not exist>" + FullEoAssemblyFName + "<"); if (!File.Exists(FullMapAssemblyFName)) throw new Exception("GetFactoryByConfigFile, MapAssemblyFName does not exist>" + FullMapAssemblyFName + "<"); if (!File.Exists(FullConfigFileName)) throw new Exception("GetFactoryByConfigFile, ConfigFile does not exist>" + FullConfigFileName + "<"); Configuration configuration = new Configuration(); Assembly EoAssembly = Assembly.LoadFrom(webAccessHdl.GetMapPath(EoAssemblyFName)); Assembly MapAssembly = Assembly.LoadFrom(webAccessHdl.GetMapPath(MapAssemblyFName)); Type[] EoType = EoAssembly.GetTypes(); Type[] MapType = MapAssembly.GetTypes(); ISessionFactory localFactory = fluent.Mappings( m => { // how do i add all the types from type array here? m.FluentMappings.Add(MapAssembly).AddFromAssembly(EoAssembly); } ) .BuildSessionFactory(); To get it to load the types genericly instead of explicitly.. has anyone done this, or see any good links to articles I should look at? Thanks, E-

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• WPML is not detecting Wordpress custom post types

  - by janoChen

  I learned how to make custom post types with the following tutorial: http://sixrevisions.com/wordpress/wordpress-custom-post-types-guide/ It basically consist in adding this code to function.php: add_action( 'init', 'create_events' ); function create_events() { $labels = array( 'name' => _x('Events', 'post type general name'), 'singular_name' => _x('Event', 'post type singular name'), 'add_new' => _x('Add New', 'Event'), 'add_new_item' => __('Add New Event'), 'edit_item' => __('Edit Event'), 'new_item' => __('New Event'), 'view_item' => __('View Event'), 'search_items' => __('Search Events'), 'not_found' => __('No Events found'), 'not_found_in_trash' => __('No Events found in Trash'), 'parent_item_colon' => '' ); $supports = array('title', 'editor', 'custom-fields', 'revisions', 'excerpt'); register_post_type( 'event', array( 'labels' => $labels, 'public' => true, 'supports' => $supports ) ); } The WPML plugin help you to translate posts to different langauges. But this option doesn't appear in the custom post types. Any suggestions?

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• List of Lists of different types

  - by themarshal

  One of the data structures in my current project requires that I store lists of various types (String, int, float, etc.). I need to be able to dynamically store any number of lists without knowing what types they'll be. I tried storing each list as an object, but I ran into problems trying to cast back into the appropriate type (it kept recognizing everything as a List<String>). For example: List<object> myLists = new List<object>(); public static void Main(string args[]) { // Create some lists... // Populate the lists... // Add the lists to myLists... for (int i = 0; i < myLists.Count; i++) { Console.WriteLine("{0} elements in list {1}", GetNumElements(i), i); } } public int GetNumElements(int index) { object o = myLists[index]; if (o is List<int>) return (o as List<int>).Count; if (o is List<String>) // <-- Always true!? return (o as List<String>).Count; // <-- Returning 0 for non-String Lists return -1; } Am I doing something incorrectly? Is there a better way to store a list of lists of various types, or is there a better way to determine if something is a list of a certain type?

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• How do tools like Hiphop for PHP deal with heterogenous arrays?

  - by Derek Thurn

  I think HipHop for PHP is an interesting tool. It essentially converts PHP code into C++ code. Cross compiling in this manner seems like a great idea, but I have to wonder, how do they overcome the fundamental differences between the two type systems? One specific example of my general question is heterogeneous data structures. Statically typed languages don't tend to let you put arbitrary types into an array or other container because they need to be able to figure out the types on the other end. If I have a PHP array like this: $mixedBag = array("cat", 42, 8.5, false); How can this be represented in C++ code? One option would be to use void pointers (or the superior version, boost::any), but then you need to cast when you take stuff back out of the array... and I'm not at all convinced that the type inferencer can always figure out what to cast to at the other end. A better option, perhaps, would be something more like a union (or boost::variant), but then you need to enumerate all possible types at compile time... maybe possible, but certainly messy since arrays can contain arbitrarily complex entities. Does anyone know how HipHop and similar tools which go from a dynamic typing discipline to a static discipline handle these types of problems?

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• Windows 7 - File Type config

  - by Peter Boughton

  In XP, I could go ToolsOptionsFile Types and modify descriptions, icons and actions. Does this still exist in Windows 7? I'm not finding anything explicitly saying so, but there are lots of recommendations to download assorted random software to do it. There must be a way to change this without having to use third party stuff?

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• SQLite data-types

  - by Alan Harris-Reid

  Hi there, When creating a table in SQLite3, I get confused when confronted with all the possible datatypes which imply similar contents, so could anyone tell me the difference between the following data-types? INT, INTEGER, SMALLINT, TINYINT DEC, DECIMAL LONGCHAR, LONGVARCHAR DATETIME, SMALLDATETIME Is there some documentation somewhere which lists the min./max. capacities of the various data-types? For example, I guess smallint holds a larger maximum value than tinyint, but a smaller value than integer, but I have no idea of what these capacities are. Any help would be appreciated. Alan Harris-Reid

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• SQlite: Column format for unix timestamp; Integer types

  - by SF.

  Original problem: What is the right column format for a unix timestamp? The net is full of confusion: some posts claim SQLite has no unsigned types - either whatsoever, or with exception of the 64bit int type (but there are (counter-)examples that invoke UNSIGNED INTEGER). The data types page mentions it only in a bigint example. It also claims there is a 6-byte integer but doesn't give a name for it. Of course standard INTEGER being 4-byte signed signed stores unix timestamps as negative numbers. I've heard that some systems return 64-bit timestamps too. OTOH I'm not too fond of wasting 4 bytes to store 1 extra bit (top bit of timestamp), and even if I have to pick a bigger data format, I'd rather go for the 6-byte one. I've even seen a post that claims SQLite unix timestamp is of type REAL... Complete problem: Could someone please clarify that mess?

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