the variable initialization

Similar Questions

• Apply the variable definition in the subclass with abstract method

  Hello
  
  It's his practice use? :
  

  public abstract class Base {
      private int importantPrivateVariable = setImportantPrivateVariable();
      protected abstract int setImportantPrivateVariable();
  }

  I want to apply the extension of the class to define a private variable, but there is no variable abstract in java, I can use a method for that.
  
  Thank you
  lemonboston
  
  Edit: the variable can be protected as well, I guess that's not important here, but correct me if I'm wrong

  lemonboston wrote:
  Hello

  It's his practice use? :

  I don't think it's so common, but it's easily understandable code. However, there are several problems with this approach:

  public abstract class Base {
  private int importantPrivateVariable = setImportantPrivateVariable();
  protected abstract int setImportantPrivateVariable();
  }
  

  I want to apply the extension of the class to define a private variable

  This is some what your code implements: your base class requires the subclasses to return an int value, and the Base class uses this value to assign to the variable.

  Therefore, the method should be called to (for example getInitialValueOfImportantVariable()+ to have a consistent naming with his signature (it returns a value, whereas a regular setter must declare a void return type: protected abstract void setImportantPrivateVariable (int someValue);).)

  Edit: the variable can be protected as well, I guess that's not important here.

  Well, Yes, it is 'important' - at least, there is a noticeable difference: the variable is private, the base class is free to treat it as seems it (for example, assign the value at construction time and never change it later). If the variable was protected, the subclass could change in ways and at times not known by the base class.

  but correct me if I'm wrong

  There is a trap in this construction: the method is called in the variable initializer, i.e., behind the scenes, about during execution of the Base, so before the constructor of the sub-class class constructor. For example, you call a method on an object that is not completely initialized (for example some of its attributes may always be null at this point). There is a rule that discourages this kind of situation, which goes something like "no calling private and unofficial constructor methods.

  To avoid this trap, two options:
  -requires an int argument in the constructor of the Base class, as suggested above
  -Don't be and set the value of the important variable in the code of the initializer or the constructor, but a special method in the base class instead:

  public abstract class Base {
      private int importantPrivateVariable; // default value is zero
  // or alternatively:
  //    private int importantPrivateVariable = ...; // Some default value
      protected abstract int getImportantPrivateVariable();
  
      public void initializeImportantPrivateVariable() {
          importantPrivateVariable = getImportantPrivateVariable();
      }
  }
  

  This construction is a degenerate form of a common model known as the model method (where a base class method calls usually several methods of the subclass in a specified order and with a specified sequence, allowing for the subclass to implement the details of the methods).

  The downside is that the client code (the one that uses the Base instance) must know when to call this initialization method, while initialization, a constructor-based allows the free client code of don't like do not at all.

  Much luck,

  J.

• Release of connect-viserver added to the variable - how?

  Hello

  I'm fighting to understand a problem with a script that I write to stop our vSphere & NetApp infrastructure when our UPS battery is critical.  If someone would be so kind help where I am wrong, I would be happy.

  A function connects to vSphere, gets the list of running virtual machines and this output to a csv file.  The value of the csv path is then returned by the function to be used elsewhere in the script.

  The problem I encounter is that the output of the command connect-viserver is being added for the returned data, and so I did not have a clean file to a csv file name more.  When I put a breakpoint on the return line, the value of $RunningVM_File is: C:\Path\To\file.txt, continue the script and check the value of the variable of the function is returned to, and the returned value has changed:

  Port of user name

  ----                           ----  ----

  vCenter_Server_NAme 443 domain\username

  C:\Path\To\file.txt

  Here is the function of the origin of the problem:

  function Initialize-vSphereShutdown

  {

  [CmdletBinding()]

  [OutputType ([string])]

  Param

  (

  # Description helps Param1

  [Parameter (mandatory = $true,)]

  ValueFromPipelineByPropertyName = $true,

  Position = 0)]

  $vSphereServer,

  # Description helps Param2

  [string]

  $BasePath,

  [pscredential]

  $Credential,

  # Description helps Param

  [Parameter]

  [string] $Logfile

  )

  Begin

  {

  #Connect to vSphere

  SE connect-VIServer-Server $vSphereServer - Credential $Credential # - User $UserName - Password $Password

  Write-debug ' connected to: $vSphereServer.

  Write-output ((Get-Date-f o) +"- connected to vCenter / ESXi host:"+ $vSphereServer) | out-file $Logfile - Append

  $RunningVM_File = ($BasePath) + "RunningVMs.txt".

  }

  Process of

  {

  If (Test-Path ($RunningVM_File)) {}

  Remove-Item ($RunningVM_File)

  }

  #Return list of all ESXi hosts managed by the host connected/vCenter

  $ESXiSRV = get-VMHost | Select-Object - ExpandProperty name | Out-string

  Write-debug ' following ESXi hosts are available:

  $ESXiSRV write-debug

  Write-output ((Get-Date-f o) +"- the following ESXi hosts are available:"+ $ESXiSRV) | out-file $Logfile - Append

  $vCenterESXiHost = get-VMHost - VM $vSphereServer | Select-Object - ExpandProperty name | Out-string

  $vCenterESXiHost | Out-file ($BasePath + "vCenterESXiHost.txt")

  Write-debug ' vCenter Server running on host: $vCenterESXiHost.

  Write-output ((Get-Date-f o) +' - vCenter Server running on the host: "+ $vCenterESXiHost) | out-file $Logfile - Append

  Debugging of Scripture "implementation of virtual machines.

  $RunningVM = get - VM | Where-Object {$_.} PowerState - eq "Receptor"} | SELECT name, folder, VApp

  $RunningVM | Export-Csv $RunningVM_File - NoTypeInformation

  Write-debug ' list of virtual computers running sauvΘs: $RunningVM_File.

  Write-output ((Get-Date-f o) +' "-list of virtual machines running recorded at:" + $RunningVM_File) | out-file $Logfile - Append

  }

  End

  {

  return $RunningVM_File

  }

  }

  Send the output of the cmdlet COnnect-VIServer into a black hole ;-)

  Like this

  SE connect-VIServer-Server $vSphereServer - Credential $Credential # - User $UserName - Password $Password | Out-Null

• Date format changes in the variable of presentation

  Hello
  I have a problem with the date stored in the variable of presentation.
  
  I have simple guest with the calendar control (default value date is set to session or deposit to the current date variable). Selected date is stored in the variable of presentation PP_DATE.
  I have a simple report with the title to view the contents of the variable PP_DATE.
  
  And now the problem.
  
  When I navigate to the page of dashboard with this report, I will get date of variable PP_DATE in a format (there are difference when I use the variable session or repository). After that I have will push the Start button, I get a different date format of variable PP_DATE.
  
  Screenshots are stored and described in this PDF file: [PDF with screenshots: https://docs.google.com/uc?export=download & id = 0B2LOPOBteIShMDRmYTJlYTItNmYyZC00ODdkLWE5NjktNzI1N2RlNWMwZjBk]
  
  There is difference between session variable and repository. When I use the reference variable I'll get "TIMESTAMP."... "the variable PP_DATE, which is the default initialization in variable Repository Manager. I tried to remove the boot by default, but I automatically added after saving changes.
  What is the default value of crimped guest of session variable, I get another date variable PP_DATE format that refers to DATE_TIME_DISPLAY_FORMAT = "yyyy-mm-dd hh:mi:ss.mss" (from NQSConfig.ini). I changed standard value DATE_TIME_DISPLAY_FORMAT ' yyyy/mm/dd hh' to "yyyy-mm-dd hh:mi:ss.mss" because I am reading data from excel, where dates are stored in the format MSSQL. But this isn't the reason for my problem. I have the same problem also with standard DATE_TIME_DISPLAY_FORMAT.
  
  The result of this strange behavior is that I get errors when I do some calculations (e.g. TimeStampDiff) to the variable PP_DATE. I get the error when I am accessing the dashboard page. Everything is ok after that I will push the Start button.
  
  You have some tips?
  
  Thank you

  Kishore Guggilla wrote:

  But I need sometimes current day default value in the command prompt, sometimes first day of the month etc...

  How do you manage that using variables to repository then?

  I have a block of initialization to initialize a few variables to repository.
  Initialization block a 1 day refresh interval.

  Select trunc (sysdate, 'mm'),
  LAST_DAY (trunc (sysdate, 'MM')),
  trunc (sysdate, 'DD'),
  trunc (sysdate, 'YYYY'),
  TO_DATE (' 31,12' | to_char (sysdate, 'YYYY')),
  TO_NUMBER (to_char (sysdate, 'YYYY')),
  TO_NUMBER (to_char (sysdate, 'MM')),
  TO_NUMBER (to_char (sysdate, 'DD')),
  trunc (ADD_MONTHS (sysdate-1), 'MM'),
  trunc (LAST_DAY (ADD_MONTHS (sysdate-1))),
  trunc (ADD_MONTHS (sysdate-2), 'MM'),
  trunc (LAST_DAY (ADD_MONTHS (sysdate-2))),
  trunc (ADD_MONTHS (sysdate,-3), 'MM'),
  trunc (LAST_DAY (ADD_MONTHS (sysdate,-3)))
  of the double

• How to create a group/list of the variables in the box for display in the text field, in the format in annex

  I need to identify a series of variables single-response checkbox and display links selected (as a group) in a text field in an annex (comma, space) format. Last week, you provided a small script for a similar requirement by using the list box (multiple response) variables. This time, I need to know how to identify the variables of the box officially and, presumably, use a similar script to display the results in a comma, space format.

  You've been a great help.

  Thank you

  Here's the script for this situation. It assumes there are ten boxes named cb1, cb1, cb2,... cb10.

  // Custom Calculate script for text field
  (function () {
  
      // Initialize the string
      var v, s = "";
  
      // Loop through the check boxes to build up a string
      for (var i = 1; i < 11; i++) {
  
          // Get the value of the current check box
          v = getField("cb" + i).value;
  
          if (v !== "Off") {
              if (s) s += ", ";  // Add a comma and a space if needed
              s += v;  // Add the selected value
          }
      }
  
      // Set this field value to the string
      event.value = s;
  
  })();
  

  You will have to change the name of the field and start/end numbers to match your form.

• Dynamic repository default Variable initialization

  Using Oracle BI (10.1.3.3.2) administration tool, I created a repository Variable Init block, the Data Source, the set as default initialization string:
  
  Select cast (trunc (sysdate)-1 date) of the double
  
  and associated with a target Variable, dynamic repository Variable, default initializer, generator expressions, the Variable defined without any error message like:
  
  DATE ' 2008-12-11.
  
  Whenever I have save the repository using the administration tool, this definition of the variable converts without warning to:
  
  TIMESTAMP ' 2008-12-11 00:00:00 '
  
  How can I stop the conversion of TIMESTAMP DATE in the default initializer?

  Use to_char in your sql instead of using the cast function. For tank allows you to mention the format.

  Select double To_Char(Sysdate-1,'MM/DD/YYYY').

  -Madan

• ORACLE ADMINISTRATION TOOLS - MANAGE SECURITY AND THE VARIABLE - PROBLEM

  To manage security, I use an external "DIM_DMT_PRIVILEGE" table with 3 columns: user, Type and value
  
  I created a block of initialization in the variable management section named 'CATEGORY' by the next expression of inititialisation:
  
  SELECT "CATEGORY", DMT_VALUE_CD
  OF DIM_DMT_PRIVILEGE T
  WHERE T.DMT_TYPE_CD = 'CT '.
  AND)
  High (T.DMT_USER_CD) = upper ('VALUEOF (NQ_SESSION.) THE USER) ")"
  OR T.DMT_USER_CD in ('VALUEOF (NQ_SESSION.) (GROUP)')
  
  The problem is that the initialization state * "upper (T.DMT_USER_CD) = upper ('VALUEOF (NQ_SESSION.)" "USER)") "* success but the other *" or T.DMT_USER_CD in ('VALUEOF (NQ_SESSION.) GROUP) ")" * don't.
  
  In the external table, the column user contain users and groups of users, security groups, and users.
  
  Thanks for your help,
  
  Kevin

  Hello

  In your select statement, you must use the name of the database table columns and not the names of the variables defined in the initialization block.

  Looks like you used the names of variables in a query, if I understand correctly.

  According to my understnading, you must use...

  SELECT DMT_TYPE_CD, DMT_VALUE_CD
  OF DIM_DMT_PRIVILEGE T
  WHERE T.DMT_TYPE_CD = 'CT '.
  AND)
  High (T.DMT_USER_CD) = upper ('VALUEOF (NQ_SESSION.) THE USER) ")"
  OR T.DMT_USER_CD in ('VALUEOF (NQ_SESSION.) (GROUP)')

  It will store these values corresponding to you first two variables defined in the initialization block.

• HP - 50g RPN - how to increase the size of the variable icon in the command screen in the RPN

  Greetings.

  How can I increase the size of the icons 'F' keys for variables in the RPN command line window?

  My reason for this is to be able to see the full name of the variable.

  Thank you.

  Edit: Perhaps sizes of keys to function 'F' is what determines the size of the variable icon. Does this mean that it cannot be increased?

  If you press SHIFT RIGHT and then press the ARROW KEY down, you can see more than 5 characters that are currently displayed for the softkey text.

  a second solution to think abou... to help the CSE function and custom designed GROBs.

  (However, take into account the current size of the police... how small it really is possible and stay legible-

  You must take account of the resolution of the screen of 50 G... it's not a 'Tablet' hi-res-like display)

  See the example on page 20-4 of the 50G users guide.

  a copy of the user guide can be downloaded here:

  http://h20000.www2.HP.com/bizsupport/TechSupport/DocumentIndex.jsp?ContentType=SupportManual & lang = to & CC = US & docIndexId = 64179 & TaskID = 120 & prodTypeId = 215348 & prodSeriesId = 3235173

  Here is the example used on page 20-4

  % HP: T (3) A (R) F (.);
  { {
  21 8 00000EF908FFF900FFF9B3FFF9A2FFF9A3FFF9A0FFF388FF GROB
  "hp"}}

  the list above on the battery... run

  MENU

  If you try to increase the amount of visible characters when running programs, you can use INFORMATION or an application like GUIPLUS located here:

  http://www.HPCalc.org/search.php?query=guiplus

• Automator: use the variable & selected as parameters for shell files

  I rarely use Automator, but it is useful to create services.

  I have a shell script that the tags of the files, and in a service, he travels the files selected in the Finder.

  What I can't get my head is the way to ask the user for the tag to be applied (either as a literal or choose from the list) and then pass this as the file list for the shell as a parameter.

  You're talking about text tags?

  You can use Ask for the text, and then set the Variable, then before run you Script Shell, Get Variable.  If this is the only variable passed, then it will be '$1 '.

  If you click on the [results] in the action before to run the Shell Script, you can see the order of the variables passed:

  

  Note: $1 should be quoted: echo "$1"

• Is there a way to disable the melody and the optimization of the variables?

  There are moments where you want to disable all the variables TUNE because when all are active, it is quite difficult to find the desired height variable and it may be lag sometimes.

  If I want to disable all the TUNE and or optimization of the variables at once, is there a way?

  A quick way to access to * all * the Tune and the optimization variables is through the DISPLAY VARIABLE BROWSER or SHIFT + F7 menu item.

  The first picture shows the sample LPF_lumped project variables unsorted.

  Left-click on the column header will sort and pull all verified variables to the top where they can be easily selected.  A second click will reverse the sort.

  The second photo shows the columns sorted and ready for clearing.

  Please try this and see if it works for you.

  Best regards

  Vivek.

• Maybe stupid question from new user: that can be done to get the variables displayed in the information tab variables?

  I've been a user of LabVIEW (2011) for about 1.5 years now and just got ahold of TestStand 2014 to try future test as a structure for our needs.

  I am using on and off for about 3 days and there is something that has been driving me nuts.  When I launch a sequence, and that the report comes at the end, there are three tabs on it: report, steps and Variables.  Report and the steps are exactly what I expect to see.   However, the Variables tab is always empty.  Nothing that I found via my technique of checking everything in menus that looks vaguely related and right click things on many items and these menus for other vaguely related things as well.

  I tried looking for references to it, and all I get is the "Main" variable tab you see when you change the sequence, not the one that appears on the report.

  See arrow in the image below:

  

  I suspect there is something incredibly obvious that I'm missing, but it's driving me crazy here...

  You won't see that filled when a run is complete. The variables are useless at this time here.

  If you want to see this populous tab to suspend execution in the middle.  Or a breakpoint.  Then you can watch the variables at run time.

  Kind regards

• Change the order of the variable by number

  Working in 2013 Teststand on equipment that is shared by several developers.  It seems that something has changed with the way in which the variables are classified in the Variables pane, but cannot identify how to change back, or who may have changed.

  I have a list of FileGlobals which are numbered sequentially, (Test0, Test1, Test2, etc.).  Previously, they have been displayed in the pane in the same sequential order.  Now, the variables are classified based on the first digit (Test0, Test100, Test10, Test11... Test18 Test19, Test1, Test20...).  It is more difficult to go through the list in the order during debugging, especially since there are more than 100 of them.  Any ideas of how this could have been changed and how to change it back?  Thank you.

  GSinMN

  Not sure if it of right or not, but at the top of your variable component for each column, you can click on the column header.  It will change the order.  There are 3 modes.  If an arrow appears that means that the column is sorted from A to Z.  If an arrow appears it means that the column is sorted Z.-a.  If you do not see an arrow, it means that the column is sorted according to the index in which the variable exists in the file.  You can click on the column heading to change to each mode.

  Hope this helps,

• Retrieves the name of the variable

  Hello

  I'm trying to change the OpenG changed? Subvi (see below) so that he will write the new value of the variable sent to 'Variant' if changed on the disk (using the following config VI). To do this, I need to somehow extract the variable name of the variable (any type) which was connected to the entrance of variant of the changed? Sub - VI by VI calling so that I can use it as a key name. Is this possible? This information is still transmitted to the Subvi?

  

  If you use openg, there is a "Get the name of data" function that retrieves the name of the data passed in the Variant.

• Update of the variables of the container

  Hello

  in 4.1.0 TestStand I noticed that, when I change a container type by adding new elements that the variables of this type automatically receive new items, but without their default values (I use it as a replacement for constant values that TestStand does not). Instead, the new elements are set to 0 (they are all numbers).

  Following questions:

  • Are variables inside the sequence of files automatically updated when loading the sequence file? or only the sequence currently in memory files when the type is changed?
  • Is that the behavior of use 0 as a default value instead of the default value in the definition of type of design or a bug?

  and a request: I think it would be good to have constants to TestStand, that is, definitions of the same type in a TypePalette-INI-file, which can be used without an instance of a variable.

  Concerning

  Peter

  Hello

  I spoke to a colleague and I think his Merry is very good (see the attachment).

  Concerning

  Rüdiger

• TestStand 2012 keeps the value of the variable

  I have a problem with TestStand 2012 that preserves the value of the variable. I have a step and its parameters in the string variable. I use the expression step as Step.Settings += "00". I run the sequence under sequential model and the problem is that Step.Settings is equal to "00" on the first run, '0000' on the second throw, '000000' on the third race and so forth, but it must rest '00' on each race. I can't find the root cause. Anyone has the same problem and can advice how to solve?

  Try to uncheck the properties of the sequence > optimize reentrant calls to this sequence to the sequence that contains the step.