JDeveloper 12.c: POJO DataControl List String

Hi
This might be a silly question but I am struggling to make this simple example work. Basically, I have exposed a POJO as Data Control, and it has on public method to retrieve a list of Strings.
The issue is that the dataControl shows the myList collection and inside just one attribute "element".
I can't manage to iterate over the strings. Even if I drag and drop the collection as a table, when I run the page I get errors like:
Name element not found in the given object: "My Stringssss" - for each string.
I know this is silly but can you help??
Regards

Hi, a String is a data type but not an updateable object. Try public class StringObject( private String name; public void setName(String name){this.name = name;} public String getName(){return this.name;} ) public class MyPojoDC( ArrayList al = new ArrayList(); setter... getter... ) Frank

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Save point with POJO DataControl not saving model state

Hi Guys,
JDEV 11.1.1.6 64bit
I was able to get save points working with ADF BC (AppMod, View & Entity objects)
but when I tried to do the exact same with Pojo DataControls, I won't save
the current state of the model - meaning things are not "selected" to the
proper record when the SP is restored. I don't get any errors, it just
shows the wrong data.
Example:
The BTF is marked as must have transaction(tried either way), but this is Pojo, and doesn't support Trx.
edit-emp-dept.jspx (with BTF Region)
BTF START
    STEP 1: RichTable with bindings to Pojo DataControl (value="#{bindings.allDepts.collectionModel}")
                 (user selects the 3 record => sales department)
    STEP 2: Edit Sales Dept & on click to next step create SP
    STEP 3: View Emps (Rich Table of ALL emps in that DEPT)
    STEP 4: Edit Emp
    FINAL: COMMIT (save to pojo list) or CANCEL (don't save to pojo list)
/BTF END
At STEP 1 -> STEP 2, the SP is created, and when I close the browser at STEP2, 3 or 4, and
restart, and choose SP to restore, it takes me to proper page (STEP 2) but the wrong Department is
selected to edit (it shows "Finance" instead of "Sales") & if I hit my ADF back button, it shows
the table with "finance" selected. In the ADF BC world it works perfectly.
I know the docs say: the ADF Model is saved, so the question is why bindings.allDepts.collectionModel
not "saved" here for Pojo DC and the ADF BC af:table value="#{bindings.DepartmentsView1.collectionModel}"
it is "saved".
Thanks for any insight or work-around.
Sincerely,
Joel
edit-emp-dept.jspx:
<?xml version='1.0' encoding='UTF-8'?>
<jsp:root xmlns:jsp="http://java.sun.com/JSP/Page" version="2.1"
          xmlns:f="http://java.sun.com/jsf/core"
          xmlns:h="http://java.sun.com/jsf/html"
          xmlns:af="http://xmlns.oracle.com/adf/faces/rich">
<jsp:directive.page contentType="text/html;charset=UTF-8"/>
<f:view>
    <af:document id="d1">
      <af:form id="f1">
        <af:region value="#{bindings.btfpojodc1.regionModel}" id="r1"/>
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    </af:document>
</f:view>
</jsp:root>

Hi,
the problem with POJO DC and other non-ADF BC models is that they don't passivate their state. In JDeveloper 12c we allow developers to extend their POJO classes with ADF lifecycle methods that allows them to save the model state themselves. Its a known issue that the transaction state cannot be saved for non-ADF BC models. I checked the bug database for bugs filed against this behavior but could not find one- I can imagine that with 12c we would have a chance to allow developers to handle passivation / activation for non-ADF BC model states. So if this is a feature you need then filing an enhancement request would make sense
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Collect data and post change-events using POJO datacontrol

How can I get users of my POJO datacontrol to get changed data from the datacontrol. The datacontrol will receive new data from some source ? I'm able to create a datacontrol from a POJO java class easy enough. However, is there an example showing how to create a datacontrol that receives data from some source and updates users of the datacontrol?
Thanks
Travis

Yes, I want to push new data to the client without the client specifically requesting the data. I suspect the datacontrol will have to fire an some event and the client has a listener for that event.
The datacontrol will receive data from a device, such as a barcode scanner, in the form of a string of text. The datacontrol will provide the data via one or more attributes (i.e. fields) such as "Product ID", "Expiration Date", etc.

How can i get also the files in the root directory and how can i for testing add items of IEnumerable FTPListDetail to List string ?

What i get is only the directories and files that in other nodes. But i have also files on the root directory and i never
get them. This is a screenshot of my program after i got the content of my ftp. I'm using treeView to display my ftp content:
You can see two directories from the root but no files on the root it self. And in my ftp server host i have files in the root direcory.
This is the method i'm using to get the directory listing:
public IEnumerable<FTPListDetail> GetDirectoryListing(string rootUri)
var CurrentRemoteDirectory = rootUri;
var result = new StringBuilder();
var request = GetWebRequest(WebRequestMethods.Ftp.ListDirectoryDetails, CurrentRemoteDirectory);
using (var response = request.GetResponse())
using (var reader = new StreamReader(response.GetResponseStream()))
string line = reader.ReadLine();
while (line != null)
result.Append(line);
result.Append("\n");
line = reader.ReadLine();
if (string.IsNullOrEmpty(result.ToString()))
return new List<FTPListDetail>();
result.Remove(result.ToString().LastIndexOf("\n"), 1);
var results = result.ToString().Split('\n');
string regex =
@"^" + //# Start of line
@"(?<dir>[\-ld])" + //# File size
@"(?<permission>[\-rwx]{9})" + //# Whitespace \n
@"\s+" + //# Whitespace \n
@"(?<filecode>\d+)" +
@"\s+" + //# Whitespace \n
@"(?<owner>\w+)" +
@"\s+" + //# Whitespace \n
@"(?<group>\w+)" +
@"\s+" + //# Whitespace \n
@"(?<size>\d+)" +
@"\s+" + //# Whitespace \n
@"(?<month>\w{3})" + //# Month (3 letters) \n
@"\s+" + //# Whitespace \n
@"(?<day>\d{1,2})" + //# Day (1 or 2 digits) \n
@"\s+" + //# Whitespace \n
@"(?<timeyear>[\d:]{4,5})" + //# Time or year \n
@"\s+" + //# Whitespace \n
@"(?<filename>(.*))" + //# Filename \n
@"$"; //# End of line
var myresult = new List<FTPListDetail>();
foreach (var parsed in results)
var split = new Regex(regex)
.Match(parsed);
var dir = split.Groups["dir"].ToString();
var permission = split.Groups["permission"].ToString();
var filecode = split.Groups["filecode"].ToString();
var owner = split.Groups["owner"].ToString();
var group = split.Groups["group"].ToString();
var filename = split.Groups["filename"].ToString();
var size = split.Groups["size"].Length;
myresult.Add(new FTPListDetail()
Dir = dir,
Filecode = filecode,
Group = group,
FullPath = CurrentRemoteDirectory + "/" + filename,
Name = filename,
Owner = owner,
Permission = permission,
return myresult;
And then this method to loop over and listing :
private int total_dirs;
private int searched_until_now_dirs;
private int max_percentage;
private TreeNode directories_real_time;
private string SummaryText;
private TreeNode CreateDirectoryNode(string path, string name , int recursive_levl )
var directoryNode = new TreeNode(name);
var directoryListing = GetDirectoryListing(path);
var directories = directoryListing.Where(d => d.IsDirectory);
var files = directoryListing.Where(d => !d.IsDirectory);
total_dirs += directories.Count<FTPListDetail>();
searched_until_now_dirs++;
int percentage = 0;
foreach (var dir in directories)
directoryNode.Nodes.Add(CreateDirectoryNode(dir.FullPath, dir.Name, recursive_levl+1));
if (recursive_levl == 1)
TreeNode temp_tn = (TreeNode)directoryNode.Clone();
this.BeginInvoke(new MethodInvoker( delegate
UpdateList(temp_tn);
percentage = (searched_until_now_dirs * 100) / total_dirs;
if (percentage > max_percentage)
SummaryText = String.Format("Searched dirs {0} / Total dirs {1}", searched_until_now_dirs, total_dirs);
max_percentage = percentage;
backgroundWorker1.ReportProgress(percentage, SummaryText);
percentage = (searched_until_now_dirs * 100) / total_dirs;
if (percentage > max_percentage)
SummaryText = String.Format("Searched dirs {0} / Total dirs {1}", searched_until_now_dirs, total_dirs);
max_percentage = percentage;
backgroundWorker1.ReportProgress(percentage, SummaryText);
foreach (var file in files)
TreeNode file_tree_node = new TreeNode(file.Name);
file_tree_node.Tag = "file" ;
directoryNode.Nodes.Add(file_tree_node);
numberOfFiles.Add(file.FullPath);
return directoryNode;
Then updating the treeView:
DateTime last_update;
private void UpdateList(TreeNode tn_rt)
TimeSpan ts = DateTime.Now - last_update;
if (ts.TotalMilliseconds > 200)
last_update = DateTime.Now;
treeViewMS1.BeginUpdate();
treeViewMS1.Nodes.Clear();
treeViewMS1.Nodes.Add(tn_rt);
ExpandToLevel(treeViewMS1.Nodes, 1);
treeViewMS1.EndUpdate();
And inside a backgroundworker do work how i'm using it:
var root = Convert.ToString(e.Argument);
var dirNode = CreateDirectoryNode(root, "root", 1);
e.Result = dirNode;
And last the FTPListDetail class:
public class FTPListDetail
public bool IsDirectory
get
return !string.IsNullOrWhiteSpace(Dir) && Dir.ToLower().Equals("d");
internal string Dir { get; set; }
public string Permission { get; set; }
public string Filecode { get; set; }
public string Owner { get; set; }
public string Group { get; set; }
public string Name { get; set; }
public string FullPath { get; set; }
Now the main problem is that when i list the files and directories and display them in the treeView it dosen't get/display
the files in the root directory. Only in the sub nodes.
I will see the files inside hello and stats but i need also to see the files in the root directory.
1. How can i get and list/display the files of the root directory ?
2. For the test i tried to add to a List<string> the items in var files to see if i get the root files at all.
This is what i tried in the CreateDirectoryNode before it i added:
private List<string> testfiles = new List<string>();
Then after var files i did:
testfiles.Add(files.ToList()
But this is wrong. I just wanted to see in testfiles what items i'm getting in var files in the end of the process.
Both var files and directoryListing are IEnumerable<FTPListDetail> type.
The most important is to make the number 1 i mentioned and then to do number 2.

Risa no.
What i mean is this. This is a screenshot of my ftp server at my host(ipage.com).
Now this is a screenshot of my program and you can see that in my program i have only the directories hello stats test but i don't have the files in the root: htaccess.config swp txt 1.txt 2.png....all this files i don't have it on my treeView.
What i want it to be is that on my program on the treeView i will also display the files like in my ftp server.
I see in my program only the directories and the files in the directories but i don't see the files on the root directory/node.
I need it to be like in my ftp server i need to see in my program the htaccess 1.txt 2.png and so on.
So what i wrote in my main question is that in the var files i see this files of the root directory i just don't know to add and display them in my treeView(my treeView is treeViewMS1).
I know i checked in my program in the method CreateDirectoryNode i see in the first iteration of the recursive that var files contain this root files i just dont know how to add and display them in my treeView.
On the next iterations when it does the recursive it's adding the directories hello stats test and the files in this directories but i need it to first add the root files.

How to use List String in JSP page?

Hello All,
I am having problem using List<String> in my JSP page. Below is my JSP code.
<%@ page import="java.util.*, java.io.*"%>
<html>
<body>
<h1 align="center">Beer Recommendations JSP</h1>
<p>
<%
List<String> beerBrands = (List<String>)request.getAttribute("styles");
Iterator<String> it = beerBrands.iterator();
while(it.hasNext()){
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%>
</body>
</html>
When I compile the above JSP code in Eclipse 3.4 (using JBoss 4.2 as my Application Server), I get the following Warning.
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Syntax error, annotations are only available if source level is 5.0
7: <p>
8:
9: <%
10: @SuppressWarnings("unchecked")
11: List<String> beerBrands = (List<String>)request.getAttribute("styles");
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The type List is not generic; it cannot be parameterized with arguments <String>
8:
9: <%
10: @SuppressWarnings("unchecked")
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13: while(it.hasNext()){
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An error occurred at line: 11 in the jsp file: /BeerAdvice.jsp
Syntax error, parameterized types are only available if source level is 5.0
8:
9: <%
10: @SuppressWarnings("unchecked")
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Thank you for your help.
Thanks,
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Hi anotherAikman,
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{color:#800000}java version "1.6.0_17"
Java(TM) SE Runtime Environment (build 1.6.0_17-b04)
Java HotSpot(TM) Client VM (build 14.3-b01, mixed mode, sharing)
{color:#000000}{color:#000000}Does it mean I have Java SE Version 6 Update 17 and you are suggesting me to download the Java EE Version 6?{color} If this is correct, can you please let me know what difference does it make?
I am now going to install the Java EE 6 and try this out.
Thank you for your help.{color}
{color:#000000}Thanks,
Chubha{color}
{color}

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Anyone familiair with this line:
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So if someone knows its true meaning and/or has a nice URL for me to glance through some nice documentation...
Thanks in advance!
Tensos

too late, it already did... seeing the code below (encountered in the general
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Message was edited by:
arjundg

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I have a List<string> with 8000 elements.
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Example:
list.Skip(1000).Take(1000)
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You'd just need to increase the amount skipped with each call
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here.

Statements like 'List String .class' cause error.

Consider the following simple code:
Class<List<String>> cl;
cl=List<String>.class;The first line is valid but the second one causes the "illegal start of expression" error.
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string.getClass().equals(ArrayList.class);
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Edited by: user7976113 on Jan 22, 2010 7:51 PM
Edited by: user7976113 on Jan 22, 2010 7:51 PM

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Traversing var of type List List String

hello all,
i hope someone can help me with this little problem.
im still a newbie on java devt.
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and i am trying to display it on a table. but i am having some issues
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================================
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================================
thanks,
doods

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//            String custId = row.get(0);
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    }sorry bout the code formatting.
i have already tried using the iterator but it doesn't work.
is this the right way to use the iterator?
i commented it out already.
basically, the searchResult returns 3 rows,
when i try to print the records on the table, it displays 3 rows
but the info on those 3 rows are all from the first row.
ex: row1 = doods, 123, aaa
row2 = doodies, 333, bbb
row3 = doodles, 444, ccc
whats printed on the table:
doods, 123, aaa
doods, 123, aaa
doods, 123, aaa

C# SSIS Script component - Save List String to Object package-scope variable and read it in Script Task

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Any way to assign value for variable of type Class List String ?

I'm puzzled why I can declare a variable:
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clazz = List<String>.class;The compiler also complains about
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return unSetable.getName();
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Hello chymes,
there is no way to get an instance of Class<List<String>> without at least one unchecked warning. Otherwise you could get away with the following:
List<Integer> ints = new ArrayList<Integer>();
Class<List<String>> clazz = List<String>.class;
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strings.add("No Good");
int i = ints.get(0); // CCETherefore the only way to get it is via unchecked cast:
Class<List<String>> clazz = (Class<List<String>>) (Object) List.class;With kind regards
Ben

JDeveloper 12.c: POJO DataControl List String

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