atomic values - Page 218

Java variables -> replace? RAM optimization

- by poeschlorn

Hi guys, I just wanted to know what happens behind my program when I declare and initialize a variable and later initialize it again with other values, e.g. an ArrayList or something similar. What happens in my RAM, when I say e.g. this: ArrayList<String> al = new ArrayList<String>(); ...add values, work with it and so on.... al = new ArrayList<String>(); So is my first ArrayList held in RAM or will the second ArrayList be stored on the same position where the first one has been before? Or will it just change the reference of "al"? If it is not replaced...is there a way to manually free the RAM which was occupied by the first arraylist? (without waiting for the garbage collector) Would it help to set it first =null? Nice greetings, poeschlorn

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INSERT INTO ... SELECT FROM ... ON DUPLICATE KEY UPDATE

- by dnagirl

I'm doing an insert query where most of many columns would need to be updated to the new values if a unique key already existed. It goes something like this: INSERT INTO lee(exp_id, created_by, location, animal, starttime, endtime, entct, inact, inadur, inadist, smlct, smldur, smldist, larct, lardur, lardist, emptyct, emptydur) SELECT id, uid, t.location, t.animal, t.starttime, t.endtime, t.entct, t.inact, t.inadur, t.inadist, t.smlct, t.smldur, t.smldist, t.larct, t.lardur, t.lardist, t.emptyct, t.emptydur FROM tmp t WHERE uid=x ON DUPLICATE KEY UPDATE ...; //update all fields to values from SELECT, except for exp_id, created_by, location, animal, starttime, endtime I'm not sure what the syntax for the UPDATE clause should be. How do I refer to the current row from the SELECT clause?

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Checked equivalent to IllegalArgumentException?

- by jv1975oid

I have a method that takes an enum as a parameter and returns some information dependent on that parameter. However, that enum contains some values which should not be handled, and should raise an error condition. Currently the method throws an IllegalArgumentException but I would like this to be a checked exception to force callers to catch it (and return gracefully, logging an error). Is there something suitable or should I create my own Exception subclass? I'm open to other patterns as well. A reasonable reaction would be that all values of the enum should be handled, but that isn't the case. When a new value is added to the enum, I want to make sure that this method does the right thing - alerting a human is preferable to using some default return value in this case. Thanks for any advice.

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Kohana3 ORM save problem

- by Bob0101

Hi, Can anyone help me with Kohana ORM. I can take out name and value. I can give them new values and I try to save them back to base, but in phpmyadmin i can see still old values for these option attributes. What is wrong with this code (it works and echos right value but i can't see it in db): $option = ORM::factory('draft') ->where('user_id', '=', $user_id) ->find() ->draft_options ->where('name', '=', $_POST['name']) ->find(); $option->name = $_POST['name']; $option->value = $_POST['value']; $option->save(); if ($option->saved()) echo Kohana::debug($option->value);

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.NET Conditional Callback on a type.

- by Mahesh

I have a stock price which changes by nature all the time. And, there will be many users who wants to buy that stock. Let's say that the stock price is started at 10 and let's say, 30 people bid for 10.98, 20 people bid for 7.45, 100 people bid for 8.99. During the day, the stock price can touch any of these values, and if that happens, I want to execute all the orders for users who quoted that price. Technically, I am storing in a List. Whenever the price changes, I am checking against all the values in the list and executing those that satisfy the quoted price. Class Bids { string stockname; double quote; } Is there any better alternative way to callback the satisfied items in the list rather than checking all the items whenever there is a change?? If storing in a list is not right way of doing it, let me know the best way.

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sql select puzzle: remove children when parent is filtered out

- by knicnak32

I have a table essentially: name has_children parent_id row_id values0.....valuesn parent 1 1 1 children 0 1 2 children 0 1 3 parent 0 4 4 parent 1 5 5 children 0 5 6 children 0 5 7 the values for the children can be different than the values for the parent. i want some selects/joins that will filter the table on a value column (i.e. 10) and will return the parent (even if false for the filter) if one of it's children is true for the filter. acceptable return: parent=true all children=false, return just parent parent=false >=1 children=true, return parent and one non-filtered child i'm sure this has been thought about before but i don't have the faintest idea how to phrase the question to find a solution.

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Django Initial for a ManyToMany Field

- by gramware

I have a form that edits an instance of my model. I would like to use the form to pass all the values as hidden with an inital values of username defaulting to the logged in user so that it becomes a subscribe form. The problem is that the normal initial={'field':value} doesn't seem to work for manytomany fields. how do i go about it? my views.py @login_required def event_view(request,eventID): user = UserProfile.objects.get(pk=request.session['_auth_user_id']) event = events.objects.get(eventID = eventID) if request.method == 'POST': form = eventsSusbcribeForm( request.POST,instance=event) if form.is_valid(): form.save() return HttpResponseRedirect('/events/') else: form = eventsSusbcribeForm(instance=event) return render_to_response('event_view.html', {'user':user,'event':event, 'form':form},context_instance = RequestContext( request )) my forms.py class eventsSusbcribeForm(forms.ModelForm): eventposter = forms.ModelChoiceField(queryset=UserProfile.objects.all(), widget=forms.HiddenInput()) details = forms.CharField(widget=forms.Textarea(attrs={'cols':'50', 'rows':'5'}),label='Enter Event Description here') date = forms.DateField(widget=SelectDateWidget()) class Meta: model = events exclude = ('deleted') def __init__(self, *args, **kwargs): super(eventsSusbcribeForm, self).__init__(*args, **kwargs) self.fields['username'].initial = (user.id for user in UserProfile.objects.filter())

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JSF, How to set a property in a different page/backing bean and then navigate to that page?

- by kgrad

I am using JSF 2.0 and attempting to pass values between different pages in my App. The setup is as follows: I have a page called userSelect that has a backing bean userSelectBacking. On this page I display a list of users that can be selected and submit using an h:commandbutton, when the page is submit the navigation goes to a userEdit page. I have a page called userEdit, that has a backing bean userEditBacking which displays the information for a user and allows that user to be edited. I would like to pass the user selected from the userSelect page into the userEdit page. I am currently using f:setPropertyActionListener to set the user in my userEdit backing from the userSelect page, however when I navigate to the userEdit page, it loses the information I set. is there a way that I can pass the values between the two pages/backing beans? thanks

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php retrieving id of the last record inserted and insert it in another table

- by Mauro74

Hi all, I'm trying to retrieve the id of the last record inserted in the table 'authors' and insert the retrieved id in the 'articles' table; here's my code: $title = mysql_real_escape_string($_POST[title]); $body = mysql_real_escape_string($_POST[body]); $category = mysql_real_escape_string($_POST[category]); $insert_author="INSERT INTO authors (name) VALUES ('$title')"; $select_author= mysql_query("SELECT LAST_INSERT_ID()"); $authId = mysql_fetch_array($select_author); $query="INSERT INTO articles (body, date, category, auth_id) VALUES ('$body', '$date_now', '$category', '$authId')"; this doesn't work... Any idea please? Thanks in Advance Mauro

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ASP.NET Chart control - how to make it Smaller or add a scrollbar

- by nCdy

How to make the table column width inside the chart smaller so I can see more values and how to add some scrollbar to see the values that I can't see on right sight . There is no changes in ASP (just added this element) here is a method how I drawing this line : if (dt != null) // dt - my DataTable { string seriesName = "Graph"; Chart1.Series.Add(seriesName); Chart1.Series[seriesName].ChartType = SeriesChartType.Line; Chart1.Series[seriesName].BorderWidth = 3; foreach (DataRow row in dt.Rows) { string columnName = row[0].ToString(); try { double YVal = Convert.ToDouble(row[1]); Chart1.Series[seriesName].Points.AddXY(columnName, YVal); } catch (Exception) { Chart1.Series[seriesName].Points.AddXY(columnName, 0); } } }

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How to merge data from two separate access 2007 databases

- by DiegoMaK

Hi, I have two identical databases with same structure, database a in computer a and database b in computer b. The data of database a*(a.accdb)* and database b*(b.accdb)* are different. then in database a i have for example ID:1, 2, 3 and in database B i Have ID:4,5,6 Then i need merge these databases data in only one database(a or b, doesn't matter) so the final database looks like. ID:1,2,3,4,5,6 I search an easy way to do this. because i have many tables. and do this by union query is so tedious. I search for example for a backup option for only data without scheme as in postgreSQl or many others RDBMS, but i don't see this options in access 2007. pd:only just table could be have duplicate values(I guess that pk doesn't allow copy a duplicate value and all others values will be copied well). if i wrong please correct me. thanks for your help.

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What to monitor on MSSQL Server

- by user361434

Hi all I have been asked to monitor MSSQL Server (2005 & 2008) and am wondering what are good metrics to look at? I can access WMI counters but am slightly lost as to how much depth is going to be useful. Currently I have on my list: user connections logins per second latch waits per second total latch wait time dead locks per second errors per second Log and data file sizes I am looking to be able to monitor values that will indicate a degradation of performance on the machine or a potential serious issue. To this end I am also wondering at what values some of these things would be considered normal vs problematic? As I reckon it would probably be a really good question to have answered for the general community I thought i'd court some of you DBA experts out there (I am certainly not one of them!) Apologies if a rather open ended question. Ry

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Insert multiple records from a XML string differing on one parameter in SQL SERVER 2008

- by Rohit

Below in a query which inserts records to SimpleDictationProfileMapping table after reading it from a XML string. Now this query inserts a single record in which DictationCaptureProfileID is @dictationCaptureProfileId . Now i want to insert multiple rows in which @dictationCaptureProfileId is different and other 2 values are same. What i want to achieve by this is in case parent changes all child values should also change. INSERT INTO SimpleDictationProfileMapping ( DictationCaptureProfileID, DictationProfileMappingAttributeID, DictationProfileMappingAttributeValue ) SELECT @dictationCaptureProfileId, row.value('@attrId','varchar(max)'), row.value('@value', 'varchar(max)') FROM @simpleDictationCaptureProfileMappings.nodes('/simpleMappingAtribute/attribute') AS d ( row ) ; I want INSERT INTO SimpleDictationProfileMapping ( DictationCaptureProfileID OR (SELECT DictationCaptureProfileID FROM DictationCaptureProfile WHERE SystemDictationCaptureProfileID = @systemDictationCaptureProfileID), DictationProfileMappingAttributeID, DictationProfileMappingAttributeValue ) SELECT @dictationCaptureProfileId , row.value('@attrId','varchar(max)'), row.value('@value', 'varchar(max)') FROM @simpleDictationCaptureProfileMappings.nodes ('/simpleMappingAtribute/attribute') AS d ( row ) ; Please tell how to achieve this.

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crashing out in a while loop python

- by Edward

How to solve this error? i want to pass the values from get_robotxya() and get_ballxya() and use it in a loop but it seems that it will crash after awhile how do i fix this? i want to get the values whithout it crashing out of the while loop import socket import os,sys import time from threading import Thread HOST = '59.191.193.59' PORT = 5555 COORDINATES = [] def connect(): globals()['client_socket'] = socket.socket(socket.AF_INET, socket.SOCK_STREAM) client_socket.connect((HOST,PORT)) def update_coordinates(): connect() screen_width = 0 screen_height = 0 while True: try: client_socket.send("loc\n") data = client_socket.recv(8192) except: connect(); continue; globals()['COORDINATES'] = data.split() if(not(COORDINATES[-1] == "eom" and COORDINATES[0] == "start")): continue if (screen_width != int(COORDINATES[2])): screen_width = int(COORDINATES[2]) screen_height = int(COORDINATES[3]) return def get_ballxy(): update_coordinates() ballx = int(COORDINATES[8]) bally = int(COORDINATES[9]) return ballx,bally def get_robotxya(): update_coordinates() robotx = int(COORDINATES[12]) roboty = int(COORDINATES[13]) angle = int(COORDINATES[14]) return robotx,roboty,angle def print_ballxy(bx,by): print bx print by def print_robotxya(rx,ry,a): print rx print ry print a def activate(): bx,by = get_ballxy() rx,ry,a = get_robotxya() print_ballxy(bx,by) print_robotxya(rx,ry,a) Thread(target=update_coordinates).start() while True: activate() this is the error i get:

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Why is this if statement failing?

- by Rawling

I'm working on an existing class that is two steps derived from System.Windows.Forms.Combo box. The class overrides the Text property thus: public override string Text { get { return this.AccessibilityObject.Value; } set { if (base.Text != value) { base.Text = value; } } } The reason given for that "get" is this MS bug: http://support.microsoft.com/kb/814346 However, I'm more interested in the fact that the "if" doesn't work. There are times where "base.Text != value" is true and yet pressing F10 steps straight to the closing } of the "set" and the Text property is not changed. I've seen this both by just checking values in the debugger, and putting a conditional breakpoint on that only breaks when the "if" statement's predicate is true. How on earth can "if" go wrong? The class between this and ComboBox doesn't touch the Text property. The bug above shouldn't really be affecting anything - it says it's fixed in VS2005. Is the debugger showing different values than the program itself sees?

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How can I find all attributes with single quotes in a Sublime Text 2 document and replace with double quotes?

- by Brandon Durham

I'm feeling particularly nit-picky today. I'm working in some HTML docs that have single quotes around all attribute values through the docs, like this: <div class='classone classtwo'> I'd love to be able to do a find-and-replace in each doc and replace with double quotes, like this: <div class="classone classtwo"> Many elements in the document will have multiple attributes: <div class='classone classtwo' data-scripts='lazyload'> And some will have the correct double quotes: <div class='classone classtwo' data-scripts="lazyload"> What's the best way to replace all single quotes wrapping values with double?

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Binding key/value pairs loaded from xml

- by Hichem

I want to load key/values configuration pairs stored in XML file. To bind a collection of data i know i need to use the ArrayList class, but the problem is that i want to be able to bind the loaded values using their corresponding keys and not by their indexes in the ArrayList object. For example i want to be able to do this : <mx:Text id="errorText" text="{Config.params['someKey']}" /> instead of : <mx:Text id="errorText" text="{Config.params[0]}" /> where Config.params is ArrayList (obviously i couldn't use ArrayList since it doesn't allow selecting a value by key) So the question is how to bind the key/value pairs loaded form XML. I don't want to go manually set variables, i want to bind them so when they are loaded the are set automatically. Did anyone had to do something like that ?

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How to skip all the column names in MySQL when the table has auto increment primary key?

- by Jian Lin

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I get "An error occurred while Windows was synchronizing with [name of time server]." when trying t

- by ChrisF

Prompted by the answers to this question I decided to give the Windows built in time synchronisation another go. However, no matter what time server I use I get this error: "An error occurred while Windows was synchronizing with [name of time server]." The help suggests the following as reasons for failure: You are not connected to the Internet. Establish an Internet connection before you attempt to synchronize your clock. Your personal or network firewall prevents clock synchronization. Most corporate and organizational firewalls will block time synchronization, as do some personal firewalls. Home users should read the firewall documentation for information about unblocking network time protocol (NTP). You should be able to synchronize your clock if you switch to Windows Firewall. The Internet time server is too busy or is temporarily unavailable. If this is the case, try synchronizing your clock later, or update it manually by double-clicking the clock on the taskbar. You can also try using a different time server. The time shown on your computer is too different from the current time on the Internet time server. Internet time servers might not synchronize your clock if your computer's time is off by more than 15 hours. To synchronize the time properly, ensure that the date and time settings are set close to your current time in the Date and Time Properties in Control Panel. Now the first reason is clearly wrong - I am connected to the internet. I can see the 2nd being the most likely cause. I have Sygate Personal Firewall running, but it normally asks if something it trying to connect for the first time. Does anyone know I can unblock the NTP protocol - or at least check if it is blocked?. I don't think it's #3 or #4 as I've tried a number of different servers including the one currently used by Atomic Clock Sync. Though if someone knows the address of a UK time server I can double check this.

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"Data type mismatch in criteria expression"

- by simon

Hey guys ! I have a problem when i want to insert values from textboxes to my access database ! When i want to save i get that error ("Data type mismatch in criteria expression") The code: string conString = "Provider=Microsoft.Jet.OLEDB.4.0;" + "Data Source=C:\Users\Simon\Desktop\test5\test5\test5\save.mdb"; OleDbConnection empConnection = new OleDbConnection(conString); string insertStatement = "INSERT INTO aktivnosti_save " + "([ID_uporabnika],[ID_aktivnosti],[kalorij]) " + "VALUES (@ID_uporabnika,@ID_aktivnosti,@kalorij)"; OleDbCommand insertCommand = new OleDbCommand(insertStatement, empConnection); insertCommand.Parameters.Add("@ID_uporabnika", OleDbType.Char).Value = textBox3.Text; insertCommand.Parameters.Add("@ID_zivila", OleDbType.Char).Value = iDTextBox.Text; insertCommand.Parameters.Add("@kalorij", OleDbType.Char).Value = textBox2.Text; empConnection.Open(); try { int count = insertCommand.ExecuteNonQuery(); } catch (OleDbException ex) { MessageBox.Show(ex.Message); } finally { empConnection.Close(); textBox1.Clear(); textBox2.Clear(); } }

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Before after select event validation and results with jquery

- by richbyte

I am using a javascript function (F) (jquery )which uses 3 select values selected by the user to calculates a value - R(result) R is a number ranging from (1 through 9), (11) and (22); I need 2 extra steps one before the calculation and one after. a. Before calculation takes place: Make sure all three select values are changed before function(F) takes place. If not prompt the user with a notice ( create dom element/ I am using jquery) b. After the value R is calculated show an element corresponding to the result e.g. if R is 1 show an element ( a predetermined "link" element corresponding to each result value) thanks a lot.

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Parsing a CSV File to a Rails Database

- by Schroedinger

G'day guys, I'm using fasterCSV and a rake script to parse a csv with about 30 columns into my rails db for a 'Trade' item. The script works fine when all of the values are set to strings, but when I change it to a decimal, int or other value, everything goes to hell. Wondering if fasterCSV has built in int etc parsing or whether I'll have to manage these within my model. Basically, I'm given a giant amount of trades data, need to import it, and then need to provide feedback with say the average trade volume, the times, etc. I understand I can do that all with the wonderful records provided to me by activeRecord but wondered if there was an easier way to populate a rather large Database with a given CSV? Several of the fields don't have values for certain rows, fasterCSV seems to work perfectly when they're all strings, but not when I try to get decimal or other.

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Selecting a date value from a dynamically generated listbox.

- by ziggy

Hi All, I have a listbox whose values are generated dynamically. The list box contains months and years and when generated looks like this. <select name="arr_dtm_mon_year" tabindex="150" class="input"> <option value=""></option> <option value="NOV 09">Nov 09</option> <option value="DEC 09">Dec 09</option> <option value="JAN 10">Jan 10</option> <option value="FEB 10">Feb 10</option> <option value="MAR 10">Mar 10</option> <option value="APR 10">Apr 10</option> <option value="MAY 10">May 10</option> <option value="JUN 10" selected>Jun 10</option> <option value="JUL 10">Jul 10</option> <option value="AUG 10">Aug 10</option> <option value="SEP 10">Sep 10</option> <option value="OCT 10">Oct 10</option> </select> The element in the listbox that is by default selected is the current month. When i use selenium IDE to select from this listbox it works fine. Here are example commands i use to select from the listbox. <tr> <td>select</td> <td>arr_dtm_mon_year</td> <td>label=Oct 10</td> </tr> <tr> <td>select</td> <td>arr_dtm_mon_year</td> <td>label=May 10</td> </tr> Now the problem i have is the values in the listbox is dynamically generated. In the above example i selected the option for "May 10". The values that are generated is a list of all previous six months and a list of all future six months. This basically means that if i rerun the test 6 months from now "May 10" will not be available from the list. Is it possible to select the value dynamically. For example can i first calculate the current month and select the value with that is current month + 1 (i.e. next month). And also how can i build the value to be selected after i have determined what the next month is. Any help will be greatly appreciated.

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Force CL-Lex to read whole word

- by Flávio Cruz

I'm using CL-Lex to implement a lexer (as input for CL-YACC) and my language has several keywords such as "let" and "in". However, while the lexer recognizes such keywords, it does too much. When it finds words such as "init", it returns the first token as IN, while it should return a "CONST" token for the "init" word. This is a simple version of the lexer: (define-string-lexer lexer (...) ("in" (return (values :in $@))) ("[a-z]([a-z]|[A-Z]|\_)" (return (values :const $@)))) How do I force the lexer to fully read the whole word until some whitespace appears?

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Optimal way to generate list of PHP object properties with delimiter character, implode()?

- by Kris

I am trying to find out if there is a more optimal way for creating a list of an object's sub object's properties. (Apologies for the crude wording, I am not really much of an OO expert) I have an object "event" that has a collection of "artists", each artist having an "artist_name". On my HTML output, I want a plain list of artist names delimited by a comma. PHP's implode() seems to be the best way to create a comma delimited list of values. I am currently iterating through the object and push values in a temporary array "artistlist" so I can use implode(). That is the shortest I could come up with. Is there a way to do this more elegant? $artistlist = array(); foreach ($event->artists as $artist) { $artistlist[] = $artist->artist_name; } echo implode(', ', $artistlist);

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Search found 18028 results on 722 pages for 'atomic values'.

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- by poeschlorn

- by dnagirl

- by jv1975oid

- by Bob0101

- by Mahesh

- by knicnak32

- by gramware

- by kgrad

- by Mauro74

- by nCdy

- by DiegoMaK

- by user361434

- by Rohit

- by Edward

- by Rawling

- by Brandon Durham

- by Hichem

- by Jian Lin

- by ChrisF

- by simon

- by richbyte

- by Schroedinger

- by ziggy

- by Flávio Cruz

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