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• calling database driver in java app [basically a swing app]

  - by user993250

  I have made a java application that allows a user to choose from certain standards and then allows him to customize those standards according to his needs. Now, the customization [via a swing application] that has been made needs to be persistent. For this we use a database [mysql/access] and hook it to the application so that with each customization made, a table [if non-existent] is created [thus making it runtime and we can not pre-determine the table names or the keys of table etc] and an appropriate entry in the table is made. I have written the driver for this connection. How do I call it in the java application and what approach should I take? I would much appreciate that if somebody can refer me some example that not only shows a sample connection being made via driver but its appropriate calls to the database as well so that i can use it as a guide.

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• Randomly choose value between 1 and 10 with equal number of instances

  - by user1723765

  I would like to generate 2000 random numbers between 1 and 10 such that for each random number I have the same number of instances. In this case 200 for each number. What should be random is the order in which it is generated. I have the following problem: I have an array with 2000 entries but not each with unique values, for example it starts like this: 11112233333333344445667777777777 and consists of 2000 entries. I would like to generate random numbers and assign each UNIQUE value a separate random number but have an entry for each value So my intended result would look like this: original array: 11112233333333344445667777777777 random numbers: 33334466666666699991778888888888

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• What is the absolute fastest way to implement a concurrent queue with ONLY one consumer and one producer?

  - by JohnPristine

  java.util.concurrent.ConcurrentLinkedQueue comes to mind, but is it really optimum for this two-thread scenario? I am looking for the minimum latency possible on both sides (producer and consumer). If the queue is empty you can immediately return null AND if the queue is full you can immediately discard the entry you are offering. Does ConcurrentLinkedQueue use super fast and light locks (AtomicBoolean) ? Has anyone benchmarked ConcurrentLinkedQueue or knows about the ultimate fastest way of doing that? Additional Details: I imagine the queue should be a fair one, meaning the consumer should not make the consumer wait any longer than it needs (by front-running it) and vice-versa.

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• MySQLi String comparisons using keys

  - by asdasd

  I have a table with lets say 2 columns. id number, and value. Value is a string (var char). Lets say i have a number x, and a list of numbers a1, a2, a3, a4, a5..... where x is not in the list. All of these numbers correspond to a unique row in the table. I want to know if the string value for x in the table is contained in one of the string values for any table entry for a1, a2, a3, a4... Lets say i have these rows: x, aaa a1, bbb a2, ccc a3, ddd a4, aaabbbcc then i want somehow a confirmation that yes, the value for x is included in one of the values in my list of numbers (a4 contains x). I know i can do this in a couple queries and shove it down some PHP and get my answer. But can i do this with one query?

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• PHP error logging - can I log all ofg the site's error to a single file?

  - by mawg

  hi, in PHP.INI, I can set the variable "error_log" and it is currently set to "error_log", which manes one file of that name in each directory Do you know ... if I set it to "public_html/error_log" - will I get only one single error log file? Any other way to do so? I really just want a single site-wide error file to check, rather than one on each sub-directory. For bonus marks, can I send myself an email each time a new entry is added to the file? Left as an exercise for the reader - can I ignore some "errors" which aren't really?

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• Conditional CellRenderCombo in pyGTK TreeView

  - by Präriewolf

  I have a two column TreeView attached to a ListStore. Both columns are CellRenderCombo combo boxes. When the user selects an entry in the first box, I need to dynamically load a set of options in the second. For example, the behavior I want is: On row 0, the user selects "Alphabet" in the first column box. The second column box is populated with the letters "A-Z". On row 1, the user selects "Numbers" in the first column box. The second column box is populated with the numbers "0-9". On row 2, the user selects "Alphabet" in the first column box. The second column box is populated with the letters "A-Z". etc. Does anyone know how to do this, or seen any open source pygtk or gtk projects that have similar behavior which I can analyze?

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• Check if a GtkEntryCompletion is currently visible

  - by Joe

  I have a GtkEntry with a GtkEntryCompletion attached to it. The Entry does something fairly expensive if the user hasn't changed the text in it for a second (to preview search results). However it's very common for the user to stop typing in order to select the correct autocompletion. So I'd like to delay the preview until the user has stopped typing and the GtkEntryCompletion is not currently suggesting anything. GtkEntryCompletion is not a real widget however, and doesn't seem to have any way to get to whatever widget does own the CellRenderers it uses. Is there a way I can detect if it's visible or not?

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• Python code to do csv file row entries comparison operations and count the number of times row value

  - by Venomancer

  have an excel based CSV file with two columns (or rows, Pythonically) that I am working on. What I need to do is to perform some operations so that I can compare the two data entries in each 'row'. To be more precise, one column has constant numbers all the way down, whereas the other column has varying values. So I need to count the number of times the varying column data entry values crosses the constant value on the other column. For example, fro the csv file i have two columns: Varying Column; Constant Column 24 25 26 25 crossed 27 25 26 25 25.5 25 23 25 crossed 26 25 crossed Thus, the varying column data entries have crossed 25 three times. I need to generate a code that can count the number of the crosses. Please do help out, Thanks.

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• JQuery UI (1.8) Select Event not working on Autocomplete

  - by Cyril Gupta

  I am trying to use JQuery UI autocomplete (1.8) for an app. It is set up like this: $('#txtigtags').autocomplete({ serviceUrl: '/tags/searchtags' + $('#txtigtags').val(), minChars: 2, delimiter: ' ', select: function () { alert(''); }, deferRequestBy: 500 }); According to the documentation the select event should fire whenever an entry is selected in the drop-menu and I should get the alert. But the select event is not firing at all. Neither is focus. What am I doing wrong?

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• How to get new logs in an EventLogEntyCollection?

  - by Massimo

  I need to monitor security event logs on very busy domain controllers, which generates hundreds of them each minute. I know how to use EventLog, EventLogEntry and EvenLogEntryCollection to open and read a server's event log, but an EvenLogEntryCollection can contain ~300.000 events, and it wraps around continuously (and very fast), so I can't rely on its index to find new entries. So far, the only thing I was able to come up with is saving the timestamp of the last processed log entry and then iterate above the EventLogEntryCollection until I find an EventLogEntry which TimeGenerated properties is greater than the timestamp I saved; but it's terribly slow to iterate on ~300.000 entries to find the new ones. How can I quickly find the new entries in an big event log?

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• WPF: Menu items and combo boxes don't render in Windows 7 64-bit

  - by lilserf

  I'm trying to use an existing internal WPF application (I do have access to the source), but it was developed on XP and I'm using Windows7 64-bit. When I click (for instance) the File menu, 90% of the time I see no drop-down menu at all. The menu still exists - I can use the arrow keys to navigate up and down and choose an option if I happen to know the order of the options, but nothing renders at all. The other 10% of the time, the menu or some portion of it DOES render, but as I move the cursor up and down I get graphical corruption or disappearing options until I end up back at the "no menu is visible at all" state. This is also true of combo boxes within the application - they show no data when I drop them down, but I can arrow down and choose an entry. Microsoft has some advice about WPF rendering issues here but none of these steps has helped with my issue.

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• content management system

  - by Farax

  I am building a website for a client who needs a content management system to go with it. The client requires features such as content staging, approving process before publishing a page, provision for templates (changing which changes the lay out for the whole website), entry and expiry dates for pages and content search. I am planning to use an existing opensource CMS for the work but I am confused as to which one should it be. I need help in deciding whether this approach is good or should i develop my own CMS? and if I do use an opensource one, which one is extensible and customisable enough using .NET?

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• What is the proper way to check the previous value of a field before saving an object? (Using Django

  - by anonymous coward

  I have a Django Model with updated_by and an approved_by fields, both are ForeignKey fields to the built-in (auth) User models. I am aware that with updated_by, it's easy enough to simply over-ride the .save() method on the Model, and shove the request.user in that field before saving. However, for approved_by, this field should only ever be filled in when a related field (date_approved) is first filled in. I'm somewhat certain that I can check this logically, and fill in the field if the previous value was empty. What is the proper way to check the previous value of a field before saving an object? I do not anticipate that date_approved will ever be changed or updated, nor should there be any reason to ever update the approved_by entry. UPDATE: Regarding forms/validation, I should have mentioned that none of the fields in question are seen by or editable by users of the site. If I have misunderstood, I'm sorry, but I'm not sure how forms and validation apply to my question.

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• GTK+ (2.0) - signal "clicked" on GtkEntry?

  - by Lght

  i'm testing some signals with Gtk+ 2.0. Actually, i'm looking for a way to get the signal emitted when i click on a GtkEntry. if (widgets_info[i].action & IG_INPUT) { widget->frame[i] = gtk_entry_new_with_max_length(MAX_INPUT_LENGTH); gtk_entry_set_text(widget->frame[i], widgets_info[i].text); catch_signal(widget->frame[i], MY_SIGNAL, &change_entry, widget); } I have a pre-selected text in my entry (widgets_info[i].text) and i want this text to disappear if the user click on my GtkEntry. Does someone knows what is this signal ? Sincerely, Lght (sorry for my english)

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• MySQL get content from web page (or other network resource)

  - by Rescommunes

  Is it possible to open a curl like object in MySQL? What I would like to do is create procedure which would check to see if a certain value is returned from a specific URL like http://example.com/inschedule?id=200&time=20m. The returned result would be a simple string like 1 or 0. I know it is better to have a script do this by putting a entry into a table etc. However, it would be much less complex for me to be able to do it this way. Thanks

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• Optimize MySQL database query

  - by rajeeesh

  I had a commenting application in my web site. The comments will store in a MySQL table . table structure as follows id | Comment | user | created_date ------------------------------------------------------ 12 | comment he | 1245 | 2012-03-30 12:15:00 ------------------------------------------------------ I need to run a query for listing all the comments after a specific time. ie .. a query like this SELECT * FROM comments WHERE created_date > "2012-03-29 12:15:00" ORDER BY created_date DESC Its working fine.. My question is if I got a 1-2 lakh entry in this table is this query is sufficient for the purpose ? or this query will take time to execute ? In most cases I have to show last 2 days data + periodically ( interval of 10 mins ) checking for updates with ajax from this table ... Please help Thanks

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• MYSQL to UPDATE table if row with 2 specific columns exist or INSERT new row if it does not exist

  - by user2509541

  I have a MYSQL table that looks as follows: id id_jugador id_partido team1 team2 1 2 1 5 2 2 2 2 1 1 3 1 2 0 0 I need to create a query to either INSERT new rows in the table or UPDATE the table. The condition is based on id_jugador and id_partido, meaning that if I wanted to insert id_jugador = 2 and id_partido = 1, then it should just UPDATE the existing row with the new team1 and team2 values I am sending. And dont duplicate the row. However, if I have an entry id_jugador=2 and id_partido=3, since this combination does not exist yet, it should add the new row. I read about the REPLACE INTO but it seems to be unable to check combination of UNIQUE KEYS.

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• I need to count the lines from matching config file entries, preferably with 'grep'.

  - by Chris

  I have a configuration file that has entries for various devices, with each entry separated by a blank line. I need to search the file for all instances of a given device type, and count the number of non-blank lines following the occurrence, stopping at the first blank. For example: Server=foo config line 1 config line 2 config line 3 Server=bar config line 1 config line 2 Server=foo config line 1 If I wanted to know how many total "config lines" were associated with server "foo", I should get four. Can you please help?

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• What does this C++ code mean

  - by Markus Orreilly

  I was trying to understand how webkit parses urls, and I'm having a hard time making heads or tails of this: Vector<char, 4096> buffer(fragmentEnd * 3 + 1); This line is on line 1214 (you can see it here: http://trac.webkit.org/browser/trunk/WebCore/platform/KURL.cpp#L1214). I get that it's making a vector of type char, with each entry being an array of char 4096 bytes large, but I don't get the buffer(fragmentEnd * 3 + 1) part. I think that it confuses me most b/c I can't find where the buffer variable is instantiated anywhere (shouldn't it be something more like Vector<char, 4096> buffer = new Vector<char, 4096>(...)? Thanks in advance

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• Transforming a TXT file in a list, getting wrong

  - by Mike

  I have a txt plain file that has a list of numbers. One number per line, like: 978-972-722-649-8 978-972-722-646-7 978-972-722-627-6 978-972-722-625-2 978-972-722-594-1 etc. This list is on a file called file.txt, was created and saved on TextEdit using Western (ISO Latin 1) encoding. Now I am trying to use Applescript to read this file and transform it on a list. I have this script set myDirectory to path to desktop folder as string set myFile to myDirectory & "file.txt" try set open_file to ¬ open for access file myFile without write permission set myList to read open_file using delimiter return close access open_file on error try close access file open_file end try end try after running this script, myList contains just ONE item and this item is "97" (I suppose that is the first two numbers of the first entry). What is going on? Thanks.

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• Reporting Services URL parameter problems

  - by GxG

  I have an URL to a location on the server where it can find teh report. The report works just fine if i manually refresh it. I tried using rc:ClearSession=TRUE and i also tried sending a random parameter, but the report is still not being refreshed. Any ideas? The main scenario: User eneters the page(with a grid view) User clicks on Export User sees the Report User deletes an entry from the page - grid view User clicks on Export again User sees the exact same report P.S. : The report query returns the data that should be displayed but the report returns the previous data.

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• Importing data from a text file using python

  - by Will

  I have a text file containing data in rows and columns (~17000 rows in total). Each column is a uniform number of characters long, with the 'unused' characters filled in by spaces. For example, the first column is 11 characters long, but the last four characters in that column are always spaces (so that it appears to be a nice column when viewed with a text editor). Sometimes it's more than four if the entry is less than 7 characters. The columns are not otherwise separated by commas, tabs, or spaces. They are also not all the same number of characters (the first two are 11, the next two are 8 and the last one is 5 - but again, some are spaces). What I want to do is import the entires (which are numbers) in the last two columns if the second column contains the string 'OW' somewhere in it. Any help would be greatly appreciated.

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• Retrieve Access Control List of Documents for Specific User on Google Docs?

  - by viatropos

  I have a large website at www.mydomain.com. There are 1000 new documents per month and 100 new users per week lets say. I need to be able to programmatically do the following: user goes to www.mydomain.com/documents user sees list of all documents they have access to (not ALL of the docs) I know you can retrieve an ACL for each document individually. But is there a way to retrieve an ACL for each "user", a list of all the documents they have access to, in one HTTP request? Something like this, but for Docs (and not just for document "owners"): Retrieving only calendars that a user owns. I'd love to know, because it seems like I'd have to parse 10,000 document "entry" tags, find the ACL, see if user is in ACL... That seems crazy. What am I missing? Thanks!

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• Custom Tag Issue

  - by user1304570

  I got a problem in making custom tag in jsf2.0 for authentication.Actually I made a sample it get run successfully But When i am merging it with my project Its component class get skipped out.But When I remove Follwing entry from web.xml <context-param> <param-name> org.jboss.jbossfaces.JSF_CONFIG_NAME </param-name> <param-value>MyFaces-2.0</param-value> </context-param> It get run success fully .But It show a red line text in every page of my project i.e One or more resources have the target of 'head', but no 'head' component has been defined within the view.**

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• AJAX Autocomplete appears at a random vertical position, not touching the textbox

  - by Tim

  Hi, I am using the AJAX Autocomplete extender for ASP.NET 2. Everything works fine...I am calling a webservice which gets me the values to fill the drop down with after 3 letters are typed into certain es. I have set the maxheight attribute and am using a scrollbar in case there are more entries than would fit that height. However, I notice that in some cases, the drop down appears at a random position on the screen, i.e. rather than connected to the relevant textbox, sometimes it appears with its entries above the textbox, not touching it at all. Sometimes it would have just one entry and it would appear in the middle of the screen vertically above the textbox it is associated to. Is there a reason why this is happening?

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