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How to get a row count for a table that does not display all rows at once?

I have a table that when the page is fully displayed has a row count of 20 rows. However, if there is more than 20, and the user scrolls down additional rows are added. Since it only gets the initial row count, I can never find the element I'm trying to search for.
What I have right now is something along these lines.
boolean isFound = false;
List<WebElement> rowList = webdriver.findElements(By.xpath("//*[contains(#class, 'requestRow')]"));
int rowCount = rowList.size();
String rowNum = null;
for (int i = 1; i <=rowCount+1; i++){
rowNum = Integer.toString(i);
}
Any idea of how I can have the table expanded and capture the new value?

OK, so what I did was create a list based on the current row count.
I then loop through the list incrementing one each time. If the number I'm looking for is found in the table, it does what I need doing. If it gets to a number higher than the current count of rows, I click the load more button, add the new value to my row count, and keep searching.

finding the value pair that has the highest affinity in Java?

Hi I am current working on a algorithm problem set.
Given the below file in a file.txt file,
yahoo,ap42
google,ap42
twitter,thl76
google,aa314
google,aa314
google,thl76
twitter,aa314
twitter,ap42
yahoo,aa314
A web server logs page views in a log file. The log file consists of one line per page view. A page view consists of page id and a user id, separated by a comma. The affinity of a pair of pages is the number of distinct users who viewed both pages. For example in the quoted log file, the affinity of yahoo and google is 2 (because ap42 viewed both and aa314 viewed both).
My requirement is to create an algorithm which will return the pair of pages with highest affinity.
Currently, I have written below code, however, right now it is not returning the pair of pages with highest affinity, any suggest of how I am modify the code to make it work? thanks. :
Scanner in = new Scanner(new File("./file.txt"));
ArrayList<String[]> logList = new ArrayList<String[]>();
while (in.hasNextLine()) {
logList.add(in.nextLine().split(","));
}
String currentPage;
String currentUser;
int highestCount =0;
for (int i = 0; i < logList.size()-1; i++) {
int affinityCount =0;
currentPage = logList.get(i)[0];
currentUser = logList.get(i)[1];
for (int j = logList.size()-1; j > 0; j--) {
if (i != j) {
if (!currentPage.equals(logList.get(j)[0])
&& currentUser.equals(logList.get(j)[1])) {
affinityCount++;
System.out.println("currentPage: "+currentPage+" currentUser: "+ currentUser);
System.out.println("logList.get(j)[0]: "+logList.get(j)[0]+" logList.get(j)[1]): "+ logList.get(j)[1]);
System.out.println(affinityCount);
}
}
}
}

Am going to write the algorithm here . You can convert that into the code.
Traverse the file and create a hashMap of .
After this traversal, you shall get the pages viewed by each user.
Now traverse this dataset. For each user, take out the list of pages he viewed. Make all possible combinations of pair of pages and put it in a max heap with value set to 1. If the combination exists in heap, increment the value.
Make sure you treat - yahoo,google same as google,yahoo while comparing.
At the end of this, the element at top of the heap is your output.

Selenium - How to count the number of rows in a table dynamically?

In my html page there's a table with 10 rows; those rows will display based on filter (dynamically). Let's say, for example, without any filters by default 10 row will be returned.
after applying the filter, less than 10 rows will be returned, depending on the type of filter, so i want to get that dynamic count of table rows (after filter) using selenium web driver.
i tried with driver.findElements(By.xpath("abcd")).size() but this is giving default count 10; however, after applying the filter only 2 rows are appearing.
Please suggest how to get dynamic count (count=2 as appearing 2 rows in UI) .

To find the total number of elements on dynamic webpage we need to use driver.findElements().size() method. But sometimes it's not useful at all.
First get the size of all element matching with the row count. Once we have it then you can use dynamic xpath ie replace row and column number run time to get the data.
{
List<WebElement> rows_table = mytable.findElements(By.tagName("tr"));
//To calculate no of rows In table.
int rows_count = rows_table.size();
//Loop will execute till the last row of table.
for (int row=0; row<rows_count; row++){
//To locate columns(cells) of that specific row.
List<WebElement> Columns_row = rows_table.get(row).findElements(By.tagName("td"));
//To calculate no of columns(cells) In that specific row.
int columns_count = Columns_row.size();
System.out.println("Number of cells In Row "+row+" are "+columns_count);
//Loop will execute till the last cell of that specific row.
for (int column=0; column<columns_count; column++){
//To retrieve text from that specific cell.
String celtext = Columns_row.get(column).getText();
System.out.println("Cell Value Of row number "+row+" and column number "+column+" Is "+celtext);
}
System.out.println("--------------------------------------------------");
}

I'll prefix this with the fact that I'm not a Java dev but I use a lot of webdriver in other languages.
The best way to setup tests is to wait for the outcome of the action that your testing. Sometimes you can get away without doing waits, or timed waits, but then you go and run your tests on a slower grid box and everything falls in a heap.
Things like "div exists", "div has class", whatever your outcome may be. In your case, it sounds like you may not be able to test for a div to be rendered but you can probably use your size test as the outcome to wait for.
Selenium can use any ExpectedCondition or you can specify a function
WebDriverWait wait = new WebDriverWait(getDriver(), 5);
wait.until(new ExpectedCondition<Boolean>() {
public Boolean apply(WebDriver driver) {
int elementCount = driver.findElement(By.xpath("xxxx")).size();
if (elementCount == 2)
return true;
else
return false;
}
});
Code from https://sqa.stackexchange.com/a/8701

GWT extract all value from a row in a flextable

i have a flextable with many row and 5 colums, i need to extract all value from a specific row when i select one. The value must appears on a window. How can i do?

You can get access to contents of any table td element using the code below:
flexTable.getFlexCellFormatter().getElement(row, column).getInnerHTML()

If you know the row number ,you can get each element by using
flexTable.getWidget(rowNum,colNum ).getelement().getInnerHtml();//will give with html tags
You can iterate throughout the flex table also like below .
Iterator<Widget> widgetiterator = flexTable.iterator();
while (widgetiterator.hasNext()){
Widget childWidget = widgetiterator.next();
if (childWidget instanceof RadioButton) { //Example
((RadioButton) childWidget).getValue();
}
}
And
Widget w flexTable.getWidget(rowNum,colNum );
if (w instanceof TextBox) {
//TO Do get value

Preserve selected model row in sorted JTable across model update

I'm having difficulties getting the following code to preserve the logically selected row in the model if the JTable has been sorted.
It works as intended when no sorting is applied.
private void updateAccountTable() {
accountsTable = guiFrame.getAccountsTable();
// Preserve selected model row
String accountNumber = "";
int selectedRow = accountsTable.getSelectedRow();
if(selectedRow >= 0){
accountNumber = (String)accountsTable.getValueAt(selectedRow, 0);
}
// Preserve sort order
// Keep eclipse happy. better way??
List <? extends SortKey> keys = accountsTable.getRowSorter().getSortKeys();
// Update displayed accounts
DefaultTableModel model = (DefaultTableModel) accountsTable.getModel();
model.getDataVector().clear();
Object[][] tableContents = accountList.getAccountsAsArray(true);
model.setDataVector(tableContents, tableHeaders);
model.fireTableDataChanged();
// reset sort order
accountsTable.getRowSorter().setSortKeys(keys);
// If updated model contains previously selected account, reselect
if (!accountNumber.equals("") && null != accountList.getAccount(accountNumber)){
for (int row=0; row<accountsTable.getRowCount(); row++){
String an = (String)accountsTable.getValueAt(row, 0);
if (an.equalsIgnoreCase(accountNumber)){
accountsTable.setRowSelectionInterval(row, row);
break;
}
}
}
else {
accountsTable.clearSelection();
}
}
Unfortunately setRowSelectionInterval() doesn't updated the selected row as expected, despite being called with the correct view row number. It seems to do nothing.
.....So,
Why is setRowSelectionInterval() failing to updated the selection, or what have I missed?

The row obtained from getSelectedRow() is in view coordinates, while the model coordinates have been changed by the intervening update. Quoting from the relevant tutorial section:
This distinction does not matter unless your viewed data has been rearranged by sorting, filtering, or user manipulation of columns.
You will need to use the conversion methods described near the end of Sorting and Filtering, which suggests:
When using a sorter, always remember to translate cell coordinates.

When you click on Jtable header to sort it, and click on a row (ex. 3rd row), you will get the value of unsorted JTable's row. To avoid this situation, use this LOC.(ik this is irrelvant to what you're trying to do but for others w/ similar problems)
int row = tblUser.getSelectedRow();
//Without below line, the value you get would be the row before sorting
int correctModel = tblUser.convertRowIndexToModel(row);
//Get username and use it to find its corresponding tuple
String username = (tblUser.getModel().getValueAt(correctModel, 1)).toString();
My table looks like this and Im trying to get the username of the selected row and w/o the 2nd LOC, I'd get the unsorted JTable's row value even after sorting it:
---------------------
| id | username |
---------------------
| | |