Cast of the SMS class

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• ClassCastException in the custom class loader

  I created a custom class Leon.
  
  CCL ClassLoaderDemo = new ClassLoaderDemo(); assume that it works very well
  CLAS class = ccl.loadClass ('com '' ' MyObject');
  
  com MyObjectSuperClass o1 = (com. MyObjectSuperClass) clas.newInstance ();
  
  Now I want to get the object responsible for MyObjectSuperClass which is super class if MyObject. But I'm getting the following exception
  
  Exception in thread "main" java.lang.ClassCastException: com. Com cannot be cast to MyObject. MyObjectSuperClass
  
  Help, please.

  821458 wrote:
  My requirement is the class MyObject needs to be loaded by my client class loader. If you say that let the superclass (MyObjectSuperClass) be in the class path and let the class system charge charger, then usually it be a problem

  No, it's exactly what you want.

  MyObject loaded by the custom class loader, its super class loaded by the system class loader, I will be able to cast then.

  Yes, you will be able to cast to the upper class, then.

  It is not similar to the statement "MyObject loaded by the class loader and custom class system are different and we cannot throw.

  No, it isn't. your confusion is due to the fact that you don't seem to understand that you can have a class hierarchy that spans the Chargers of classes. This should be obvious because each object hierarchy extends eventually object, which is always in the system class loader. Therefore, you can always convert any instance of any class loader "Object". in the same way, you can have MyObjectClass in your chargers personalized classes and MyObjectSuperClass in the system class loader. You can instantiate an instance of MyObjectClass to aid reflection on your custom class loaders and assign it to a reference of the type MyObjectSuperClass. This is how pretty much any plugin system is implemented (the API is in the 'main' class loader and the implementation is in a nested class or custom ClassLoader).

• Cannot use casting "to more specific class ' function to the parent class of child class

  Hello

  I am using OOP for my request for data acquisition. I have different e/s analog and digital materials. I create a superclass named DAQ.lvclass. This class has four childs: analog in out analog, digital, and Digital Out. I am trying to invoke screws of the child of the parent class's class. For that I am throwing the class parent her child to aid "to a more specific class' function. But I get the below error.

  Error 1448 occurred at the more class specific in DAQ.lvclassMain.vi AQ

  Possible reasons:

  LabVIEW: Bad type cast. LabVIEW does not deal with the run-time value of this class of LabVIEW as an instance of the given class of LabVIEW.

  How can I handle these cases where I have to call child VI of the parent member?

  I have attached two screws 1 snapshot. Main DAQ: it's the class main VI parent who manages all functions. 2. read the analog inputs: this VI trying to set the parent class for its class of the child and child vi reads value of data acquisition task. I get the second error off VI.

  Kindly help.

  Honestly, I have NO idea on what you want to do.

  Inheritance of classes in EACH OOD (object-oriented design) requires to define common ground as the parent class. Children can add things like properties and methods.

  If you set children who have no points in common, you have made a mistake.

  If all children have too many different specific methods, your OOD is absent.

  Example:

  Parent defines the method A.

  1 child adds the B method.

  Child 2 adds method C.

  But method B will not be usable on 2 children while method C will not work with 1 child.

  It is an approach that you want to prevent. In any programming language oriented OBJECT. This adds unnecessary complexity leading to difficult to maintain the code, and it is prone to errors.

  However, if you're going to do, "to more specific class ' is the correct type cast. But your screenshots and error messages, it is obvious that refine you a particular child's casting only. You must extend the code to check the real child, specifically expressed and call the method. That being said, your code increases the complexity you want to add a bunch of case of structures which essentially nihilates all THE BENEFITS of the use of OOP.

  I'm sorry to say that.

  Norbert

• Error 1448. LVOOP: Referring to objects of the child class

  Hi all.

  In a project using LVOOP, I defined a class parent with several attributes. Of this class, there are three classes of children who inherit the attributes of the parent class and also have their own.

  Imagine that I instantiated an object belonging to the parent class and initialize its attributes. So I want this object even belong to a class of the child in particular, and refer to its attributes in the class of the child, of course, keep the values of the parent class. How can I do?

  I tried to use "in a more specific class" tool but I get the following text: "error 1448: bad type cast." LabVIEW does not deal with the run-time value of this class of LabVIEW as an instance of the given class of LabVIEW. »

  Exactly the same problem is committed and solved here http://lavag.org/topic/7473-lvoop-class-variable-as-child/, but because the links are temporarily disabled I can't download and understand the code example, which shows what it says there.

  Thank you very much
  Francisco.

  Hi Francisco,.

  Take a look at this thread: http://forums.ni.com/ni/board/message?board.id=170&message.id=362388&requireLogin=False

  Christian

• Attention impossible to bind to property 'somevar' on the 'Object' class object is not an IEventDispatcher?'

  Hi all

  How to fix under WARNING:

  Attention impossible to bind to property 'somevar' on the 'Object' class object is not an IEventDispatcher

  Thank you

  Sunil Rana

  Hi Paul,.

  I found the solution on the net & here's news

  Cast the data in your itemrenderer as an objectProxy.

  itemRender.mxml

  http://www.Adobe.com/2006/mxml '.

  verticalScrollPolicy = "off".

  horizontalScrollPolicy = "off".

  creationComplete = "init (); » >

  Import mx.utils.ObjectProxy;

  [Bindable]
  public var dataProxy:ObjectProxy;

  private function init (): void {}
  dataProxy = new ObjectProxy (data);
  }
  ]]>
      

  Thank you

  Sunil Rana

• by using the DCDataRow class instead of the oracle.jbo.Row interface

  Hello
  
  The API documentation says that class oracle.adf.model.bean.DCDataRow extends oracle.jbo.server.ViewRowImpl and implements oracle.jbo.Row.
  
  -In the case of a reply in another forum thread, Re: best way to recover an attributeValue of links in a backing bean?:
  ""Btw.: you can cast DCDataRow, which is the super class for data models that do not work with oracle.jbo.Row, ".
  -Also in oct2010-otn-harvest - 183714.pdf it says:
  "As I mentioned earlier, the business can be anything, casting, in which case the line type for the type of business ADF oracle.jbo.Row component may not be a generic solution to use. In this case, the type of line to DCDataRow cast
  DCDataRow vRow = (DCDataRow) vDCIteratorBinding.getCurrentRow (); "
  
  This sample application uses the DCDataRow class instead of the oracle.jbo.Row interface
  at http://www.consideringred.com/files/oracle/2010/Thread1665841AttributeValuesApp-v0.03.zip

    public String getMyNameFromIterator()
    {
      BindingContainer vBindingContainer =
         BindingContext.getCurrent().getCurrentBindingsEntry();
      DCBindingContainer vDCBindingContainer = (DCBindingContainer)vBindingContainer;
      DCIteratorBinding vDCIteratorBinding =
         vDCBindingContainer.findIteratorBinding("findSomeMyRowsIterator");
      DCDataRow vDCDataRow = (DCDataRow)vDCIteratorBinding.getCurrentRow();
      return (String)vDCDataRow.getAttribute("myName");
    }

  question
  -(q1), which would be the more detailed explanation about when and why to make a cast of the class oracle.adf.model.bean.DCDataRow instead of the oracle.jbo.Row of the interface in managed bean code?
  
  Thank you very much
  Jan Vervecken

  Hello

  the answer to that is that I was wrong. DCDataRow is not the super class, but one of the classes of implementation. I'll fix the entrance of the harvest with the next update. Indeed line runs through implementations

  Frank

• RemoteObject does not making a cast to the correct type

  Hello

  I have a Flex/Java project which has 47 of DTO Java and ActionScript 47 VO all, except one of them classified can be passed between flex and java with a problem. I see no significant difference between the problem classes and others. I get this error message: flex.messaging.io.amf.ASObject cannot be cast to com.fujitsu.ad.services.db.dto.UserRole. I note during debugging in java, objects that were received from flex are of type ASObject and Flex side objects that were on a pass from java were of type Object. I've included the two class below in the hope that someone migt be able to see something obvious.

  Thank you

  JJ

  package

  com Fujitsu.ad.services.db.VO

  {

  Import mx.utils.ObjectUtil;

  [

  Bindable ]

  [RemoteClass(alias=)

  "com.fujitsu.ad.services.db.dto.UserRole" )]

  public class UserRole

  {

  public var : number;

  public var name: String;

  public var description: String;

  public function UserRole()

  {

  }

  public function clone(): UserRole

  {

  return ObjectUtil.copy ( this ( ) as Role of the ;

  }

  }

  }

  /**
  * Copyright (c) 2010 Fujitsu Services Ltd.
  */
  package com.fujitsu.ad.services.db.dto;

  /**
  The class applying.
  */
  public class UserRole implements java.io.Serializable {}

  /**
  * serialVersionUID.
  */
  private static final long serialVersionUID = 1 L;

  / * The ID. */
  Private long id;

  / * The name. */
  private String name;

  / * Description. */
  description of the private channel;

  /**
  * Instantiates a new application.
  */
  public UserRole() {}
  }

  /**
  * Gets the ID.
  *
  * @return id
  */
  {} public long getId()
  return this.id;
  }

  /**
  * Sets the id.
  *
  @param the new ID.
  */
  public void setId (long id) {}
  This.ID = id;
  }

  /**
  * Gets the name.
  *
  * @return name
  */
  public String getName() {}
  Return myIdName;
  }

  /**
  * Sets the name.
  *
  @param name new name
  */
  public void setName (String name) {}
  myIdName = name;
  }

  /**
  * Gets the description.
  *
  * @return description
  */
  public String getDescription() {}
  return description;
  }

  /**
  * Sets the description.
  *
  @param description description
  */
  {} public void setDescription (description of the chain)
  This.Description = description;
  }

  /**
  * @see java.lang.Object #hashCode ().
  * @return the hash code
  */
  @Override
  public int hashCode() {}
  first final int = 31;
  int result = 1;
  first = result * result + (int) (id ^ (id > > > 32));
  return the result;
  }

  /**
  * @see java.lang.Object #equals (java.lang.Object).
  @param obj
  * @return true or false
  */
  @Override
  public boolean equals (Object obj) {}
  If (this == obj) {}
  Returns true;
  }

  If (obj == null) {}
  Returns false;
  }

  {If (getClass()! = {obj.getClass ())}
  Returns false;
  }

  UserRole final another obj = (UserRole);

  If (id! = other.id) {}
  Returns false;
  }
  Returns true;
  }

  }

  Sometimes you meet it because the class has not been added to your swf file when it was compiled (because there no reference in the code!)

  If you don't know that everything seems wise good code, try to add a reference to the class (in Flex) that is not strongly typed something like this:

  role: UserRole var = object as UserRole;  (with the usual import, in fact just the import statement can be enough)

  (Make sure to place it in a class that is certainly used, not the VO itself.)

• How do I cast to the ROKU?

  How do I cast to the ROKU?

  Unfortunately, I think that it does not for the moment. In another recent thread:

  Video casting will not work because the Flash is not supported on the Roku playback devices.
  
  Mirroring the screen would work, but as others have said it is not functional [now] because of limitations related to the devices (roku and chromecast).

• Why Firefox requires the SMS permissions?

  I use the beta for android version string and the last update requires SMS permissions but does not explain why. Someone tell me what "characteristic" is for?

  Hello

  You are right, that the SMS permissions should not be asked in Firefox. It was an authorization for the error that has slipped into the beta version and is not designed. It will be removed in our next beta release week. Evolve in http://bugzil.la/728327.

  Sorry for the confusion. Looking for an update this week.

  -Mobile Mozilla QA

• Error "Failed to initialize the raid class" on Equium A100

  Hello peeps

  I seem to have a problem re install the Vista 32 bit product supplied with my A100 - 02L recovery disk. I get a message "unable to initialize the raid class."

  Any ideas of what the problem may be Pls?

  Hi Bfab,

  When you get this error message exactly? You see that at the end of the installation during installation or recovery?

  I used the disk recovery from my laptop, very often, but never had a problem with it. It s still works correctly.
  If recovery disk doesn't work, it could be a malfunction of the equipment.

  Have you tested a normal disc of Microsoft Vista too?

• Watch does not recognize the weight class as exercise-how can you add the duration of activity manually because none of the presets eg elliptical etc. is appropriate. Also does not count calories for example 35 when the rest of the group is around 500

  Look does not recognize the weight class as exercise-how can you add the duration of activity manually because none of the presets etc for example elliptical is appropriate and therefore do not count toward the daily goal. Also does not count calories for example 35 when the average of the others in the group is around 500.

  Hello

  When you use the application of the training session, choose the type of activity that best fits your business. For anything else - like weight - select the other category.

  During the follow-up of one year to the next helps:

  • Activity app will credit the ring of progress of exercise with one minute for every minute of the workout.
  • Active calories will be based on the data recorded by the heart rate sensor or a brisk walk, whichever is greater.

  Note, however, that the heart rate sensor is likely to give better results for the workouts that involve rhythmic (for example running) rather than the irregular movements.

  More information:

  Use of the workout on your Apple Watch - Apple Support

• With the help of the child in the executable class

  I'm kinda stuck and don't know how to solve and could not find a solution online.

  I have a parent class and its children to the class. The child class only overrides a method, but not the run method. I want to compile the executable project, where the run method is called, but the class type is the child, not parent. How to do this?

  I tried three things, but all in vain:

  (1) in the build properties when I select start VI the run method of the parent, I get in the executable the parent, not the child's class class. It's logical. However, I couldn't find the option to use the child as a type's class.

  (2) when I add the run method of the child class and appeal to parents, I get two windows pop up. The run of the parent and the child method. Too many. Even if for the class child run method (see below the block diagram of a child, red run method's parent), I put not to show the façade when it is called in the properties of VI.

  

  (3) when I tried with a separate VI calling the run method of the parent class, but the class type is the child, I get the façade of this separate VI and the run method of the parent. See below (Blue class is child, red of parent).

  

  In both cases 2 and 3, I chose to put the checkbox 'See the façade when it is called' a FAKE, but still the front panels appear.

  Someone don't know either: i) the use in the executable version of the options to generate an executable when a different class method is used, or ii) when you compile an executable file with a certain start VI, to not show this starting VI?

  I understand if I say "you want to configure the RUN method of the class as 'start-up VI' in the EXE file, but it should run the RUN method for a child object"?

  If this is correct, your third approach is the right one. This new boot VI is often used as 'Splash Screen' that covers the task of a demon "spawning" for your application.

  You must simply close this VI once it's over. This can be done using VI server on its own front panel functions.

  hope this helps,

  Norbert

• Substitution of the class, how to create the child class and then the base class

  I started to write a program for a DMM smart, that the problem is all versions of DMM greet the change company communication.

  My idea is to write a child class for each version, DMM and each Subvi child will replace the Subvi base class.

  My problem is, I first want to create a child class and after I see everything is working, start creating the base class. in this way, I'll see if think the right way.

  My question is

  How can I create a child class and then create the base class and configure the Subvi class of the child to be the substitution of the base class?

  I tried searching in the property of the class, but I don't see anything.

  Thank you

  This can be done and I did on occasion.

  You create the base class with the methods of dynamic distribution, you need (Connector components must be identical to those of the class of the child).

  Set then the legacy of the class inherits this base class.  If your method is defined as a dynamic distribution method in the parent, you will probably now have some errors (unless your method of child was already DD, in which case you might be OK already).

  To change the inheritance of a class, right-click on the properties of the class in your project, and then select Properties.  According to me, the tree of estate is at the lower end of the property.  Click on the 'legacy of change' (or something similar) to choose the class from which you now want to inherit.

• Summary of functions (two entries) for classes of brother with a dynamic distribution of entry: the static entry retains the type of the parent class.

  Suppose that in a hypothetical example, I have a superclass (number) with two children (real and complex) classes.

  I would define a function of sum for these classes, using dynamic distribution.

  Real or complex would have its own method of the sum (VI) which would be subject to various operations, such as the real and complex numbers are different.

  As I understand it, the normal way to proceed in OOP is for each of these methods to have an entry of dynamic distribution and a static entry of its own type.

  Problem: Labview doesn't let me do this!

  I first define an input method dynamic-shipping dummy for the numberof the parent class, but only the first entry can be dynamic-Envoy while the other is statically typed as number.

  Then, when I create override methods in my two children classes real and complex, the second entry (static) remains under the number (the type of the parent class). This is not fair, because then I can't access the private data of the child class of type real or complex that will be connected to the second input (static).

  What is the solution to this problem (usually)?

  I think that, in LVOOP, you use only a dynamic terminal or a static terminal to the terminal object.

  You can have several other terminals, but all the dynamics VI (methods with the same name) must have the same API (terminals).

  If you have to understand your preferred mode to pass, use multiple terminals, not used by each method, or use a cluster that contains all the numbers to pass (real or complex, both of which are not used in each method) or you can try a Variant, as shown.

• LVOOP: Common accessor for the child classes?

  I am reletively new to LVOOP and OBJECT oriented programming in general. I used very simple classes as a replacement for clusters several times, and now I have an architecture intended to convert most of my code into classes, dynamic distribution screw and similar.

  However, I run in to an issue, which basically boils down to laziness: I really don't want to do a lot of the same dynamic send screws I want to have a VI parent to be able to write a piece of data common to all children. Preference gives an error if the child does not have this data element.

  I guess it's quite similar to dynamic distribution, but without having to write a DD VI for each class.

  Is it possible to have the VI parent to access the data of the child? If so, how?

  Here is an example of my hierarchy:

  Test.lvclass (parent)

  DC_test.lvlcass (data: test number, 2D, time stampresults)

  Transfer_Curve_test.lvlcass (data: results of tests settings, 1 d, timestamp)

  Breakdown_test.lvlcass (data: test number, 3D, timestampresults)

  ... 28 another test

  As you can see, the data type only common between them is the timestamp. I want to be able to use a VI in the parent class to write data in the child class.

  You have it backwards autour.

  The data that is common belongs to the parent class, not the class of the child.

  Data that are not common may not be processed by the parent class and must be transformed by the child class.

  You don't need to CREATE truly dynamic shipping screws for a common data type.  If you just don't set the VI at all, it will be called the parent instance.

  Shane.