Monthly Archives

Articles indexed in June 2010

facebook twitter digg google delicious technorati stumbleupon myspace wordpress linkedin gmail igoogle windows live tumblr viadeo yahoo buzz yahoo mail yahoo bookmarks favorites email print

Page 1149/1794 | < Previous Page | 1145 1146 1147 1148 1149 1150 1151 1152 1153 1154 1155 1156  | Next Page >

  • about Sorting Algorithms

    - by matin1234
    Hi I want to know that we always use Sorting algorithm like (Insertion Sort or Merge Sort,...) just for lists and arrays?? and we do not use these algorithms for stack or queue ??? thanks

    Read the article

  • EJB failure to update datamodel

    - by Ignacio
    Here my EJB @Entity @Table(name = "modelos") @NamedQueries({ @NamedQuery(name = "Modelos.findAll", query = "SELECT m FROM Modelos m"), @NamedQuery(name = "Modelos.findById", query = "SELECT m FROM Modelos m WHERE m.id = :id"), @NamedQuery(name = "Modelos.findByDescripcion", query = "SELECT m FROM Modelos m WHERE m.descripcion = :descripcion")}) public class Modelos implements Serializable { private static final long serialVersionUID = 1L; @Id @GeneratedValue(strategy = GenerationType.IDENTITY) @Basic(optional = false) @Column(name = "id") private Integer id; @Basic(optional = false) @Column(name = "descripcion") private String descripcion; @OneToMany(cascade = CascadeType.ALL, mappedBy = "idModelo") private Collection produtosCollection; @JoinColumn(name = "id_marca", referencedColumnName = "id") @ManyToOne(optional = false) private Marcas idMarca; public Modelos() { } public Modelos(Integer id) { this.id = id; } public Modelos(Integer id, String descripcion) { this.id = id; this.descripcion = descripcion; } public Modelos(Integer id, Marcas idMarca) { this.id = id; this.idMarca = idMarca; } public Integer getId() { return id; } public void setId(Integer id) { this.id = id; } public String getDescripcion() { return descripcion; } public void setDescripcion(String descripcion) { this.descripcion = descripcion; } public Collection<Produtos> getProdutosCollection() { return produtosCollection; } public void setProdutosCollection(Collection<Produtos> produtosCollection) { this.produtosCollection = produtosCollection; } public Marcas getIdMarca() { return idMarca; } public void setIdMarca(Marcas idMarca) { this.idMarca = idMarca; } @Override public int hashCode() { int hash = 0; hash += (id != null ? id.hashCode() : 0); return hash; } @Override public boolean equals(Object object) { // TODO: Warning - this method won't work in the case the id fields are not set if (!(object instanceof Modelos)) { return false; } Modelos other = (Modelos) object; if ((this.id == null && other.id != null) || (this.id != null && !this.id.equals(other.id))) { return false; } return true; } @Override public String toString() { return "" + descripcion + ""; } } And the method accesing from the Modelosfacade public List findByMarcas(Marcas idMarca){ return em.createQuery("SELECT id, descripcion FROM Modelos WHERE idMarca = "+idMarca.getId()+"").getResultList(); } And the calling method from the controller public String createByMarcas() { //recreateModel(); items = new ListDataModel(ejbFacade.findByMarcas(current.getIdMarca())); updateCurrentItem(); System.out.println(current.getIdMarca()); return "List"; } I do not understand why I keep falling in an EJB exception.

    Read the article

  • Java Servlet connecting to SQL Server tutorial?

    - by phill
    Can anyone recommend a tutorial on how to write a Java Servlet which connects to MS SQL server and manages data? I'm trying to write something which pulls products out of one database and inserts them into a stored procedure located on another database. Thanks in advance.

    Read the article

  • Cannot connect to my VPN Server from another network

    - by SantaC
    ok here is the deal. I have a Windows 2008 R2 server with RRAS installed configured for VPN. I also have DHCP running. On my DC I have AD running and they're connected with my domain. I am only using one NIC though. As a client I have Windows 7. So I tried connecting to my VPN server through my own network, which worked fine, so the setup is correct. However, when I tried connecting to my VPN server on another network, it does not work. I went to my brothers home and tried connecting to my server but it did not pass. So on my VPN server I have ip: 192.168.2.99 At my brothers house, i did the configuration on his windows 7 and it cannot connect to that ip. I am operating on the 192.168.2.1 network and he is operating on the 192.168.0.1 network. So how do I configure his client in order to get it to work? I tried changing his ip to the 192.168.2.x network, but i am not sure you can do that. I need some help here what to do.

    Read the article

  • Optimal password salt length

    - by Juliusz Gonera
    I tried to find the answer to this question on Stack Overflow without any success. Let's say I store passwords using SHA-1 hash (so it's 160 bits) and let's assume that SHA-1 is enough for my application. How long should be the salt used to generated password's hash? The only answer I found was that there's no point in making it longer than the hash itself (160 bits in this case) which sounds logical, but should I make it that long? E.g. Ubuntu uses 8-byte salt with SHA-512 (I guess), so would 8 bytes be enough for SHA-1 too or maybe it would be too much?

    Read the article

  • complicated inserts

    - by liysd
    I have to do something like this insert into object (name, value, first_node) values ('some_name', 123, 0) @id = mysql_last_insert_id() insert nodes (name, object_id) values ('node_name',@id) @id2 = mysql_last_insert_id() update object set first_node=@id2 where id=@id Is it possible to make it simpler? What if I want to insert more pairs (object, node) with resonable efficency?

    Read the article

  • How can Swing dialogs even work?

    - by Bart van Heukelom
    If you open a dialog in Swing, for example a JFileChooser, it goes somewhat like this pseudocode: swing event thread { create dialog add listener to dialog close event { returnValue = somethingFromDialog } show dialog (wait until it is closed) return returnValue } My question is: how can this possibly work? As you can see the thread waits to return until the dialog is closed. This means the Swing event thread is blocked. Yet, one can interact with the dialog, which AFAIK requires this thread to run. So how does that work?

    Read the article

  • Scala script to copy files

    - by kulkarni
    I want to copy file a.txt to newDir/ from within a scala script. In java this would be done by creating 2 file streams for the 2 files, reading into buffer from a.txt and writing it to the FileOutputStream of the new file. Is there a better way to achieve this in scala? May be something in scala.tools.nsc.io._. I searched around but could not find much.

    Read the article

  • Fluent Nhibernate Mapping Single class on two database tables

    - by nabeelfarid
    Hi guys, I am having problems with Mapping. I have two tables in my database as follows: Employee and EmployeeManagers Employee EmployeeId int Name nvarchar EmployeeManagers EmployeeIdFk int ManagerIdFk int So the employee can have 0 or more Managers. A manager itself is also an Employee. I have the following class to represent the Employee and Managers public class Employee { public virtual int Id { get; set; } public virtual string Name { get; set; } public virtual IList<Employee> Managers { get; protected set; } public Employee() { Managers = new List<Employee>(); } } I don't have any class to represent Manager because I think there is no need for it, as Manager itself is an Employee. I am using autoMapping and I just can't figure out how to map this class to these two tables. I am implementing IAutoMappingOverride for overriding automappings for Employee but I am not sure what to do in it. public class NodeMap : IAutoMappingOverride { public void Override(AutoMapping<Node> mapping) { //mapping.HasMany(x => x.ValidParents).Cascade.All().Table("EmployeeManager"); //mapping.HasManyToMany(x => x.ValidParents).Cascade.All().Table("EmployeeManager"); } } I also want to make sure that an employee can not be assigned the same manager twice. This is something I can verify in my application but I would like to put constraint on the EmployeeManager table (e.g. a composite key) so a same manager can not be assigned to an employee more than once. Could anyone out there help me with this please? Awaiting Nabeel

    Read the article

  • Team Foundation Error: The request ID is incorrect or not recognized

    - by Andrei
    Hello everybody. I'm trying to connect to the Team Foundation Server's ClientService.asmx web services. Over here, the TFS has webservices for retrieving work items, queries, metadata and more...a quite complete and useful set of information to get. My problem is that trying to access these services leads to an error: TF51313: The request ID is incorrect or not recognized I assume it has something to do with the RequestHeader Id structure. I give it a GUID inside the code I'm working on, but I don't know how correct it is...or what value it should have to begin with. Note: I can't use the TFS API/SDK because I am building a mobile application. Also an application on the TFS server side to communicate with the API and expose web services is not an option. Thanks.

    Read the article

  • ipad simulator error after distribution

    - by ghiboz
    Hi all, I developed a test app and I tried to use into the simulator.. all works fine! After, following the document "iPhone_developer_program_user_guide" I made the distribution version of my app (and xcode built it without problems). After this, I couldn't try the distribution 'cause I don't have iPad, but when I selected the debug type and relaunched to the simulator, the simulator starts, become all black and xcode give this error: I sent the .app and the .mobileprovision to my mate that have the iPad (configured with the udid) and retrieve an unknown error (0xE8008001)... thanks in advance!

    Read the article

  • UIViewController remove subview

    - by ghiboz
    Hi all! I add a view as subview of my uiviewcontroller like this: // into my ViewController: UIImageView *imView =[[UIImageView alloc] initWithImage:[UIImage imageNamed:@"img.jpg"]]; imView.frame = CGRectMake(2, 46, 1020, 720); [self.view addSubview:imView]; now, with another button I wish remove the imView from the subview chain.. how can I do to do this?? thanks

    Read the article

  • javascript splice() indexing problem

    - by markzzz
    hello! i have to add some value into an array. code for example : temp[0]=new Array("0","0"); temp[1]=new Array("0","0"); temp[2]=new Array("0","0"); temp[3]=new Array("0","0"); temp[4]=new Array("0","0"); vt=new Array("1","0"); temp.splice(3, 0, vt); temp.splice(4, 0, vt); temp[3][1]="R"; i aspect this output : 1 - 0,0 2 - 0,0 3 - 0,0 4 - 1,R 5 - 1,0 6 - 0,0 7 - 0,0 but the output is : 1 - 0,0 2 - 0,0 3 - 0,0 4 - 1,R 5 - 1,R 6 - 0,0 7 - 0,0 any idea? i think it's a indexing problem with splice() function! cheers

    Read the article

  • not case sensitive query in mysql

    - by Mac Taylor
    hey guys i need to query my database and find results : mysql_query("select * from ".ALU_TABLE." where username like '%$q%' or name like '%$q%'"); if i have a name in my table such as Book and i enter book in search box it wont show the Book i need to query my database as not to be case sensitive.

    Read the article

  • Saving an Object for use later

    - by Eclipsed4utoo
    As part of my widget, I use an instance of the Camera object. This is what I want to do. The user will click on my widget, I get an instance of the Camera(if it's not already stored), use it, then store it. If they click the widget again, I want to use that same instance that I used previously. Is this possible?

    Read the article

  • When do you use a circular slider/knob in a good user interface?

    - by Koning Baard
    As I am familiar with some synthesizers, I often user real life circular sliders (e.g. to control the master volume), also called knobs. Like this one: Sometimes I also find these controls in virtual applications (yes I like extreme minimalism =P): But most of them are irritating, confusing or just wrong, and simple sliders could be used instead, making the UI much better. What are the advantages of circular sliders like the one in the screenshot above? And when do you use them? Thanks

    Read the article

  • Javascript looping only through defined properties of array. How?

    - by Beck
    For example if i'm keeping array of references via id like that: if(typeof channel_boards[misc.channel_id] == 'undefined') { channel_boards[misc.channel_id] = $('<div class="channel" channel_id="'+misc.channel_id+'"></div>').appendTo('#board'); } And then i'm looping through array to find required reference. I'm looping through undefined properties as well. Is it possible to loop only through defined properties? for(i=0;i<channel_boards.length;i++) { if(channel_boards[i] != undefined) { if(channel_boards[i].attr('channel_id') != visible) {channel_boards[i].addClass('hidden_board');} else {channel_boards[i].removeClass('hidden_board');} } } Maybe i should change the way i'm storing references? Via object for example, but how i'll be able to find proper reference via id number.

    Read the article

  • Embedded Lua on iPhone. What's new and what does it mean?

    - by John Smith
    Apparently Apple has changed some term in the agreement again. From http://www.appleoutsider.com/2010/06/10/hello-lua/ section 3.3.2 is now Unless otherwise approved by Apple in writing, no interpreted code may be downloaded or used in an Application except for code that is interpreted and run by Apple’s Documented APIs and built-in interpreter(s). Notwithstanding the foregoing, with Apple’s prior written consent, an Application may use embedded interpreted code in a limited way if such use is solely for providing minor features or functionality that are consistent with the intended and advertised purpose of the Application. instead of the original No interpreted code may be downloaded or used in an Application except for code that is interpreted and run by Apple’s Documented APIs and built-in interpreter(s). I am more interested in embedding Lua, but other people have other embeddings they want to make. I am wondering how you ask for permission, and what they mean by the terms "minor features" and "consistent" and how will Apple interpret this section? It seems to have enough loopholes to drive a real firetruck through.

    Read the article

facebook twitter digg google delicious technorati stumbleupon myspace wordpress linkedin gmail igoogle windows live tumblr viadeo yahoo buzz yahoo mail yahoo bookmarks favorites email print

< Previous Page | 1145 1146 1147 1148 1149 1150 1151 1152 1153 1154 1155 1156  | Next Page >