Iterate through the items in the cluster

Similar Questions

• Iterate through the DB using DBcursor-> get with the DB_DBT_USERMEM flag set for DBT

  BDB works in mode TDS. You want to iterate over a database using a DBcursor from beginning to the end. set the flag DB_DBT_USERMEM on the structure of the DBT with data pointing to a block of memory allocated fixed size to organize content in a single record reading. Currently the cursor get fails with DB_BUFFER_SMALL. I guess that's because the cursor-> get retrieves several records.
  
  It is possible to iterate over the DB using the cursor said while allocating memory for only a 1 user database? Each call to cursor-> get with DB_NEXT / DB_PREV / DB_FIRST DB_LAST etc. would be updated of the unique registration entry.

  Hi Kedar,

  No, DBcursor-> get() picked up several key/data elements if you are using the DB_MULTIPLE or DB_MULTIPLE_KEY flags. See "Bulk Retrieval:
  [http://www.oracle.com/technology/documentation/berkeley-db/db/programmer_reference/am_misc_bulk.html#am_misc_bulk_get]
  You want only to retrieve a single record per call, so do not use the above indicators. In this case, the DB_BUFFER_SMALL error indicates that the length of the item requested/retrieved is greater than that specified for the DBT via his "ulen" field
  [http://www.oracle.com/technology/documentation/berkeley-db/db/api_reference/C/dbt.html#dbt_DB_DBT_USERMEM]
  If you want to iterate through all the records in the database (including duplicates, if the database is configured to support), you must use the DB_NEXT flag.
  Note that when the DB_BUFFER_SMALL error returned the field 'Size' of the DBT is on the length needed for the item requested; You can check this value to determine how the size of your buffer provided (or you can know in advance the size of the items in the database).
  Here is an excerpt of the example code to "Retrieve records with a cursor" with the necessary adjustments for the TCD data:
  [http://www.oracle.com/technology/documentation/berkeley-db/db/programmer_reference/am_cursor.html#am_curget]

       DB *dbp;
       DBC *dbcp;
       DBT key, data;
       int close_db, close_dbc, ret;
  
       //...
  
       /* Acquire a cursor for the database. */
       if ((ret = dbp->cursor(dbp, NULL, &dbcp, 0)) != 0) {
            dbp->err(dbp, ret, "DB->cursor");
            goto err;
       }
       close_dbc = 1;
  
       /* Initialize the key/data return pair. */
       memset(&key, 0, sizeof(key));
       memset(&data, 0, sizeof(data));
  
       /* Retrieve data item in user suplied buffer. */
  #define BUFFER_LENGTH 1024
       if ((data.data = malloc(BUFFER_LENGTH)) == NULL)
            return (errno);
       data.ulen = BUFFER_LENGTH;
       data.flags = DB_DBT_USERMEM;
  
       /* You can supply your own buffer for the key as well. */
  
       /* Iterate through the database. */
       while ((ret = dbcp->c_get(dbcp, &key, &data, DB_NEXT)) == 0)
            /* Operate on the retrieved items. */
       if (ret != DB_NOTFOUND) {
            dbp->err(dbp, ret, "DBcursor->get");
            goto err;
       }
  
  err:
       // ...
  

  Kind regards
  Andrei

• Iterate through the objects of the child in components

  I have a custom component named myComp that has three TextInputs. And in the main application there is a button that adds the component dynamically to the VBox named myVBox, I would like to know how iterate through the added components and display the text inside each of the TextInputs in a box of Alret. I'm pretty new to flex and I couldn't find examples for this.

  Thank you

  Code example,

  Custom component

  MyComp1.mxml

  
  http://www.adobe.com/2006/mxml">
       
       
       
  
  

  Application

  
  http://www.adobe.com/2006/mxml"
       layout="absolute"
       creationComplete="init()">
       
            
       
  
       
            
            
            
            
       
  
  

  Hope this helps you

• detect pageitems groups and iterate through the items in each group

  Hello

  I can use some help with a script that I'm trying. The script creates a new layer based on a fill color of objects and then move the item to the new layer.

  What I can't understand is how to check if a pageItem is a group, and if so, scroll through all the objects within the group. What I have so far (snippit) is:

  var doc = app.activeDocument;
  var LayerName = "0";
  var MyArray = new Array;
  
  for ( j=0; j < Counter; j++ ) 
      {
      CurrentItem = doc.pageItems[j];
      if (CurrentItem.typename != "GroupItem" && CurrentItem.typename != "CompoundPathItem" && CurrentItem.parent.typename != "GroupItem" && CurrentItem.parent.typename != "CompoundPathItem") 
         {  
          LayerName = ConstructLayerNameBasedOnFillColor( CurrentItem );
          CurrentItem.move( app.activeDocument.layers.getByName( LayerName ), ElementPlacement.PLACEATBEGINNING );
         }
        else 
         {  
          if (CurrentItem.typename == "GroupItem") //  seems to be wrong as it also returns true for an item within the group
          { 
           myArray = [];
              for ................ // cycle through each item within the group
               {
                LayerName = ConstructLayerNameBasedOnFillColor( CurrentGroupItem );
                MyArray.push(LayerName);
               }
           LayerName = GetMostCommonColor(MyArray);
           ................. // move the group (including all items within the group) to layer LayerName
            }
         } 
      }
  

  Is the part that I need help:

  1:  if (CurrentItem.typename == "GroupItem") //  seems to be wrong as it also returns true for an item within the group
  2:     { 
  3:     myArray = [];
  4:      for ................ // cycle through each item within the group
  5:         {
  6:          LayerName = ConstructLayerNameBasedOnFillColor( CurrentGroupItem );
  7:          MyArray.push(LayerName);
  8:         }
  9:     LayerName = GetMostCommonColor(MyArray);
  10:     ................. // move the group (including all items within the group) to layer LayerName
  11:    }
  

  line 1: how to check if the pageItem is a group

  line 4: scroll all the items in the Group

  line 10: move the group to a new layer

  Any help is appreciated.

  Have you tried running the loop backwards in the case where the index is messed up.

   m=0; m < CurrentItem.pageItems.length-1; m-- 
  

• Iterate through the attributes unknown cluster

  Hello

  I try to write a VI that revieces a unknown cluster (it should work with any cluster) and travels its attributes.

  for each attribute, I run different commands depending on the type.

  I tried to work with variants, but I couldn't get the actual values of the cluster (only the type and name) attributes.

  What would you recommend using a VI like that?

  Thank you!

  
  

• Iterate through the custom Classes?

  Hello

  Suggests, I have a class with public properties as

  Class person {}

  public var address: String;

  public var name: String;

  public var fathername:String;

  etc etc.

  }

  Now I want to iterate over them in a simple way as

  for {(var clé: string en personne)}

  trace ("property is" + key + "and the value is" + person [key]);

  }

  But does not allow it to do with the AS3 Classes

  Now, I want you guys to suggest me what would be the simple and best way to iterate over them, because I don't want to do so much if (else) about it.

  Thank you

  You can try using the describeType() method:

  http://livedocs.Adobe.com/Flash/9.0/ActionScriptLangRefV3/Flash/utils/package.html#describ eType ()

• Need to iterate through the tab order

  I've been an iteration through form fields and Annotations (of type Widget), but now I need to follow the tab order.

  How should I do?

  THX,

  -RFH

  ISO 32000-2 WD, 7.7.3.3, table 30 says that 'W' means 'Order Widget'.  It was originally spec'd in the documentation on the Adobe Extensions ISO 32000-1, level 3.  (more details can be found in these two documents)

• help to loop through the elements of page

  Hello

  I am new to InDesign scripting and I need a way to programmatically iterate through the items on a page in a document and get the entire block of text ID (Using javascript). Once I have a match of the text block I'm looking for, I'll have to update its content. Is there an easy way to do this?

  Thanks in advance!

  -Lloyd

  Hey!

  var myTextFrames = app.activeDocument.textFrames;
  var myTextFramesNo = myTextFrames.length;
  

  Now myTextFramesNo has number of blocks of text in the document and myTextFrames holds text objects frame. Now you can run through the blocks of text and content of the kit for each of them like this:

  myTextFrames[0].contents = "My Frame Contents";
  

  This is for beginning

  --

  tomaxxi

  http://indisnip.WordPress.com/

• How iterate over the attributes of a single entity?

  I'm working on a script of transformation of the logic model. I take a list of entities:

  var = model.getEntitySet () .toArray () entities;

  iterate over the entities:

  for (var e = 0; e < entities.length; e ++) {}

  var = [e] entities entity;

  
  

  and try to get a list of all the attributes of the current entity:

  var attributes = entity.getAttributeSet () .toArray ();

  After that, I try to iterate through the attributes:

  for (var a = 0; a < attributes.length; a ++) {}

  attribute var = attributes [a];

  While performing an iteration on the attributes, I realized that the list is always the same. I always get a list of all the attributes probably of the whole model, even for entities without any attribute.

  How can I get a list of the attributes of a single entity?

  Hello

  Use entity.getAttributes)

• How to determine the index of an item in a cluster?

  I have a small program that I put in place, as I'm just trying to get up to speed on Labview.  I have a boolean cluster buttons and for some reason the top button of the page is coming through as Index 3.  There are four buttons in the cluster, but for some reason, there has been a change.  The top must be Index 0.  How to do the things fixed?  I do not see how to determine the index of each button through properties.

  Thank you

  The order of items in a cluster is the same as the order that you added them. To change the order, just right click and select "rearrange controls in the group. If you use Unbundle by name, you don't care the order.

• set items in the cluster of typedef double tables

  Hello

  I have a cluster of type def. This group includes 16 double tables, the size of the arrays are identical, but can change during execution.

  I would like to write data from table to this cluster in a loop, where I get the berries during the iterations of a PDM file. If the loop will iterate 16 times and every time I should put something in the cluster preceding the recent read double table.

  What would be the easiest solution here, since I can't use the 'Cluster to table' here and cluster table saw... ?

  Thank you!

  I don't know if it's necessarily easier, but if you change the typedef cluster so that it instead contains 16 clusters and each cluster contains a single element which is a 1 d array, then you will be able to use the Cluster to table and table to the Cluster, although you'll have to do an additional unbundling/package inside the loop for.

• Update only one item in the cluster while avoiding race conditions

  I have a cluster called "Inputs" that has a bunch of data within all kinds of data types.

  I have several loops in the code I want each of them to update a specific element within the cluster.

  I have to get the cluster use this Bundle by name on the specific item and then rewrite in the cluster.

  This way I have racing conditions because two loops can 'be' the cluster at the same time, but when they rewrite a wiil overwrites the other.

  How can I avoid these race conditions?

  I am familiar with Globals functional if it is connected to a possible solution (I have the feeling that it is..)

  Thank you!

  I still think that my suggestion to use the value of data references would be easier. The structure of the International preliminary examination will block the concurrent access to the data cluster: no race condition.

  

  The last loop (option) shows how to query the State of the heap of data.

• Can I send value cluster through the shared variable?

  Hi every1,

  I want to send a cluster through the shared variable. While creating a shared variable, there are options to choose the type of data, but there is no option to Cluster.

  But there is an option of "custom control". How to use it?

  Hi, Germain,.

  Create your control and save it as a file on your disk *.ctl. If you use the "custom control" option, and then select your control. If this does not work for your control, you can use the function 'flatten in string' to send a string.

  Mike

• Writing only to certain parts of the cluster in an array by reference

  Hello

  I have an array of clusters that I use as well to view and enter data, i.e. elements of the cluster are unmodifiable (disabled) controls used as indicators of "false" (numeric values, strings, LEDs) and some are normal witnesses (numerical values, buttons).

  The "indicator" part of this cluster table must be constantly updated (for example with the positions of the engines), normally by replacing the elements according to cluster in a loop and writing in the table. This can lead to conditions of race with the part 'control': If the user enters data in a 'bad' timing control, it gets immediately replaced by the old value - in this case the update process began just before the user input and completed just after the entrance of (which may be a simple click is enough) , so the old values of controls are rewritten on user controls, as the table should be rewritten as a whole.

  Now, I'm looking for a solution to this critical race condition without changing this 'mixed' approach of control/indicator (e.g. by control and indicator tables separated next to each other and paired scrolling or so - which would make it much more horrible GUI design, among other disadvantages). I know that it is possible to change the value of an element in the cluster without having to rewrite the entire cluster using the element reference. However, it's more complicated if you have an array of clusters, because you want the cluster to a certain index table and to my knowledge, there is no such property that gives you for example the reference to the item table located in an index of certain (who is a lack of long date in the table of Labview manipulation). If you change the 'value' of an element of the cluster property in a table, it seems to affect the 'last active' element of the array, at least it is correlated with the array element that was clicked on last. Maybe there's a way somehow programmatically set that ' last active ' array element and browse the table in this way (setting the flag "correspondent" elements of the cluster by reference) or maybe someone knows a solution 'Nice' and elegant?

  I hope you understand what I mean

  Thanks in advance!

  To avoid such conditions of race, make sure what you write on the Board in the same place change you and write only the data for the indicators. Practically, this means that if you have an event for the control change value, you must have another case of event in the same structure of update of the indicators (timeout or a user event) and make sure that the indicator event takes the rest of the data of the current value (for example through a terminal or a local variable or the DVR suggested Steve). Similarly, you can use the terminal control to the current value of the control for the indicators rather than depend on the event containing the correct value.

• Access and manipulate elements of the cluster

  I have a group of 4 elements. One of the elements is a ring with 4 data entry. Is it possible to manipulate these entires 4 data based on a condition?
  For example, when a condition = 1; then 3 ring entries will be disabled and grayed out. When not, all 4 entries must be enabled.

  Is it possible to get the local variable for those inputs of the ring in a cluster. or ideas?

  

  Hello

  When you right-click the control of the ring, you will have a Create-> property Node-> disabled]

  AS LONG AS you call the command is not strictly Type Def or the cluster that contains the control of the ring is not strictly of Type defined, you can use property "Disabled items []" to get the behavior programmatically.

  When a condition is true, the index numbers of items that need to be disabled for this hardware node of wire.

  Edit: I see that dan_u already answered, but I couldn't open the dan_u vi, I LV 2010.

  then attached the vi according to my explanation.