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• Obtain all keys of a Neo4j index

  - by MattiSG

  I have a Neo4j database whose content is generated dynamically from a big dataset. All “entry points” nodes are indexed on a named index (IndexManager.forNodes(…)). I can therefore look up a particular “entry point” node. However, I would now like to enumerate all those specific nodes, but I can't know on which key they were indexed. Is there any way to enumerate all keys of a Neo4j Index? If not, what would be the best way to store those keys, a data type that is eminently non-graph-oriented? UPDATE (thanks for asking details :) ): the list would be more than 2 million entries. The main use case would be to never update it after an initialization step, but other use cases might need it, so it has to be somewhat scalable. Also, I would really prefer avoiding killing my current resilience abilities, so storing all keys at once, as opposed to adding them incrementally, would be a last-resort solution.

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• Javascript/Jquery - Reset text box view area after tab

  - by JK

  I don't know what this is called so its hard to google for it. If you have a plain html input type=text with a small width eg 20 and then type more characters than can be displayed, it shows the last characters you type. And the first ones are scrolled out of view: This is my long text // this is the whole string my long string // this is what is actually visible in the input box How do I make it so that when you hit tab, the view area resets so that the start of the string is visible and the end is hidden? my long string // this is what is visible in the input box when typing This is my // this is what is I want to be visible in the input box after you hit tab What do you call this, and how do you do it?

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• How do I select an option using Spring's form:select tag?

  - by Dave

  I'm using Spring 3.1.1.RELEASE. Using the form:select tag, how do I specify which option should be selected? I want the first one to be selected, but when I put <form:select path="parentOrganization"> <form:option value="" label="Select an Org Type or Parent Org" /> <form:options items="${orgTypesWoParents}" itemValue="id" itemLabel="description" /> <form:option value="" label="=======================" /> </form:select> the last one is selected. I want to preserve the order of how everything is displayed, which is why I've arranged things in this way.

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• Forcibly clear memory in java

  - by MBennett

  I am writing an application in java that I care about being secure. After encrypting a byte array, I want to forcibly remove from memory anything potentially dangerous such as the key used. In the following snippet key is a byte[], as is data. SecretKeySpec secretKeySpec = new SecretKeySpec(key, "AES"); Cipher cipher = Cipher.getInstance("AES"); cipher.init(Cipher.ENCRYPT_MODE, secretKeySpec); byte[] encData = cipher.doFinal(data, 0, data.length); Arrays.fill(key, (byte)0); As far as I understand, the last line above overwrites the key with 0s so that it no longer contains any dangerous data, but I can't find a way to overwrite or evict secretKeySpec or cipher similarly. Is there any way to forcibly overwrite the memory held by secretKeySpec and cipher, so that if someone were to be able to view the current memory state (say, via a cold boot attack), they would not get access to this information?

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• How to force SQL Server 2008 to not change AUTOINC_NEXT value when IDENTITY_INSERT is ON ?

  - by evilek

  Hello, I got question about IDENTITY_INSERT. When you change it to ON, SQL Server automatically changes AUTOINC_NEXT value to the last inserted value as identity. So if you got only one row with ID = 1 and insert row with ID = 100 while IDENTITY_INSERT is ON then next inserting row will have ID = 101. I'd like it to be 2 without need to reseed. Such behaviour already exists in SQL Server Compact 3.5. Is it possible to force SQL Server 2008 to not change AUTOINC_NEXT value while doing insert with IDENTITY_INSERT = ON ?

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• Subsonic : Same column name different tables

  - by John Transformer

  Hi, I have a query where I need to do a "Where" clause for two different columns in two different tables but subsonic creates the same parametrized parameter name for both which is causing an issue. How can I fix this? string _RawSql = new Select() .From(Tables.Table1) .InnerJoin(Tables.Table2) .InnerJoin(Table3.SidColumn, Table2.Table3SidColumn) .Where(Table1.SidColumn).IsEqualTo(2) .And(Table3.SidColumn).IsEqualTo(1) .BuildSqlStatement(); The query this is creating is SELECT .... FROM [dbo].[Table1] INNER JOIN [dbo].[Table2] ON [dbo].[Table1].[Table2Sid] = [dbo].[Table2].[Sid] INNER JOIN [dbo].[Table3] ON [dbo].[Table2].[Table3Sid] = [dbo].[Table3].[Sid] WHERE [dbo].[Table1].[Sid] = @Sid AND [dbo].[Table3].[Sid] = @Sid Note that in the last two lines its using @Sid for both Table1 and Table3. How go I do it so it uses @Sid0 and @Sid1? Any help would be appreciated. Thanks

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• How to determine on which file system a file was created in Java

  - by rafrafUk

  Hi Everyone! I get files in different formats coming from different systems that I need to import into our database. Part of the import process it to check the line length to make sure the format is correct. We seem to be having issues with files coming from UNIX systems where one character is added. I suspect this is due to the return carriage being encoded differently on UNIX and windows platform. Is there a way to detect on which file system a file was created, other than checking the last character on the line? Or maybe a way of reading the files as text and not binary which I suspect is the issue? Thanks Guys !

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• Search server 2008 express working with WSS 3.0 (error when crawl second web application (website) s

  - by tberube

  My search server 2008 express crawls 3 sharepoint servers and 1 windows file server. The file server and 2 other sharepoint server crawl all content and master and sub sites just fine. On the 3rd sharepoint server the default site crawl just fine...The second web application site (content database) crawls the top site and crawls all sub sites BUT The subsites get the below error in the crawl log. Deleted by the gatherer (The start address or content source that contained this item was deleted and hence this item was deleted.) I have checked the security rights (OK) I have checked the setting to crawl a SharePoint site (if wrong the top site would not work)... ???? Last part = I can crawl 3 other sharepoint sites (web applications/other content databases) on the same server...It seems to be just this one site...

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• Table Adaptor Error when trying update

  - by JasonMc92

  Hi, I have a rather perplexing issue. I am using VB.net and SQL for my project. I have a database, to which the connection works. I also have a data table and data adaptor, both of which I know work. I am trying to update something in the database, yet it isn't working. Assume everything listed is declared correctly. What am I doing wrong? teacher_control_table.Rows(0)("DATA_TeacherLockPasscode") = txtPasscode1.Text table_adaptor2.Update(teacher_control_table) That last line throws the following exception: InvalidOperationException was unhandled. update requires a valid UpdateCommand when passed DataRow collection with modified rows.

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• C: Recursive function for inverting an int

  - by Jorge

  I had this problem on an exam yesterday. I couldn't resolve it so you can imagine the result... Make a recursive function: int invertint( int num) that will receive an integer and return it but inverted, example: 321 would return as 123 I wrote this: int invertint( int num ) { int rest = num % 10; int div = num / 10; if( div == 0 ) { return( rest ); } return( rest * 10 + invert( div ) ) } Worked for 2 digits numbers but not for 3 digits or more. Since 321 would return 1 * 10 + 23 in the last stage. Thanks a lot! PS: Is there a way to understand these kind of recursion problems in a faster manner or it's up to imagination of one self?

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• Why is std::tr1::shared_ptr<>.reset() so expensive?

  - by Paul Oyster

  Profiling some code that heavily uses shared_ptrs, I discovered that reset() was surprisingly expensive. For example: struct Test { int i; Test() { this->i = 0; } Test(int i) { this->i = i; } } ; ... auto t = make_shared<Test>(1); ... t.reset(somePointerToATestObject); Tracing the reset() in the last line (under VC++ 2010), I discovered that it creates a new reference-counting object. Is there a cheaper way, that reuses the existing ref-count and does not bother the heap?

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• How messages flows between computers connected with Internet or LAN ?

  - by Praveen

  Hi All, I have been doing Windows programming in .Net since last two years. Now I am shifting to web programming so I just stuck in understanding the fundamentals of web programming, after googling I came to StackOverflow to learn from all of you great guys. My confusion is about how messages flow between systems in distributed enviornment ? I mean suppose I want to send a message "Hello" to a system connected to LAN or Internet, then what will be the steps taken to send the message. Second thing is suppose my system is "A" and I wana send message to system "B" which is connected via a wire, so how the message flows on wire and how system "B" reads it from the wire ? Please someone explain me in a layman terms. Thank you all in advance.

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• Getting Popular Topics on a Custom Made Forum

  - by Navarr

  For this website we're working on, we're trying to get the most popular topics (based on how many posts have been made in them within the last 24 hours). We have a medium to large based forum, and the current MySQL query looks like this: SELECT `forums_topics`.*, ( SELECT COUNT(`id`) FROM `forums_posts` WHERE `postdate` > (UNIX_TIMESTAMP()-60*60*24) AND `topicid`=`forums_topics`.`id` ) AS `trendy_threads` FROM `forums_topics` WHERE `deleted`=0 ORDER BY `trendy_threads` DESC,`postdate` DESC LIMIT 3 This unfortunately causes an SQL timeout with just one query and Error 500's. How can we get this information as quickly and as efficiently as possible?

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• Displaying same icon in 2 different sizes on c#

  - by ET

  My goal is to display the same icon twice, but each time in different size. I tried the following: FileStream fs = new FileStream("name_of_the_icon_file.ico", FileMode.Open); Icon ico = new Icon(fs, 32, 32); //create an in-memory instance of the icon, size 32x32 Icon ico2 = new Icon(fs, 16, 16); //create an in-memory instance of the icon, size 16x16 ... Graphics.DrawIcon(ico, /*some point*/); Graphics.DrawIcon(ico2, /*some other point*/); The last line throws an ArgumentException: Value does not fall within the expected range. Can some one explain me whats wrong and whats the way to do this right?

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• Can VBScript determine the most recently modified (or added) file in a particular folder?

  - by Jimminy

  Hello, I have a script (or more accurately WILL have a script) that checks a folder and copies a file from this folder to a different location (will run once per day). The fileName that I'd like to copy from, however, changes based on the date. Basically, instead of setting the "strFilePath" to "C:\somePath\somePath2\myFile.txt" I would like to simply take the most recently modified (or added - does this make a difference in terms of the script??) in the "somePath2" folder and copy it to the destination. Bonus (but not completely necessary) would be to check in the script if the file was modified/added in the last 24 hours and only copy it over in that case. Thanks for your help!

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• How do I reference the other object in django models

  - by UserZero

  Hi, first post here.In Django, I want to have many files be associated with a particular model, so I'm doing a seperate model called files and have model 'A' 'have many' files. But I want my files to be saved in director named by model 'A'. So For example I want something like this: class Show(models.Model): name = models.CharField() showfolder = models.FilePathField() class Episode(models.Model): show = models.ForeignKey(Show) name = models.CharField() files = models.ManyToManyField(mp3) class Mp3(models.Model): file = FileField(upload_to=Episode.show.showfolder) So hopefully that last line expresses what I WANT it to do(get the folder name from Show object associated with the episode). The question is how would I really write that?(besides jumping through hoops in the controller.) Thanks.

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• htaccess not working as it should

  - by hsn

  well, ofcourse its not working, im still a n00b :) this is the code that i have : Options +FollowSymLinks RewriteEngine on RewriteRule (.*)\.css - [S=7] RewriteRule (.*)\.jpg - [S=6] RewriteRule ^gallery gallery.html [L] RewriteRule (.*)/(.*)/ index.html?page=$2 [L] RewriteRule (.*)/(.*) index.html?page=$2 [L] RewriteRule (.*)/ index.html?page=$1 [L] RewriteRule (.*) index.html?page=$1 [L,QSA] Now, this works fine, if i try localhost/abc but it wont work if i try localhost/abc/ also, when i try localhost/abc/def (or localhost/abc/def/ for that matter) the css file isnt being included properly. i get an error saying /abc/def/style.css does not exist. :( however, the code doesnt work if i remove the QSA flag from the last rule. this is the code that ive come up with after a lot of googling and reading SO. if anyone can help out i'll be extremely grateful. thanks!

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• Business web application platform structure

  - by VoodooRider

  Hi, I would like to develop a web application in java/spring/hibernate serving as a business platform that I could connect plugins to (i.e. CRM plugin, ware plugin, sales plugin). Those plugins could be dependent of other plugins in a tree manner. The parent project would be packaged as war having all the basic configuration and looks (spring configs, css, scripts), ready to go user and group management, security settings, etc. All together I would like it to behave and look a bit like Joomla, but built using different tools for different purposes. And I have a few questions concerning that project: Do you know of any open source projects offering such a platform ready to go? If not is maven applicable for managing those plugins? What is the best way to package and deploy those plugins? And the last but not least, basically is this the right way to go or is a dead end and it would be better to create a separate web app for those business needs?

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• SQL Query That Should Return Least two days record

  - by Aryans

  I have a table "abc" where i store timestamp having multiple records let suppose 1334034000 Date:10-April-2012 1334126289 Date:11-April-2012 1334291399 Date:13-April-2012 I want to build a sql query where I can find at first attempt the records having last two day values and so second time the next two days . . . Example: Select *,dayofmonth(FROM_UNIXTIME(i_created)) from notes where dayofmonth(FROM_UNIXTIME(i_created)) > dayofmonth(FROM_UNIXTIME(i_created)) -2 order by dayofmonth(FROM_UNIXTIME(i_created)) this query returns all the records date wise but we need very most two days record. Please suggest accordingly. Thanks in advance

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• How to see "anti if" movement and its gaol?

  - by Vijay Shanker

  I have a developer for last 3 years, have been using if-else or if-else if statements a lot in my programing habit. And today, I found This link. One obvious sample i put here public void doSomthing(String target, String object){ //validate requests if(target != null && target.trim().length() < 1){ //invalid request; } //further logic } Now, I have seen this sort of check all over the places, libraries. So, I wanted to have a discussion about the worthiness of such a movement. Please let me know your views.

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• document.getElementById("tweetform").submit is not a function?

  - by Abs

  Hello all, I am using Firefox and I've been reading some forums claiming this doesn't work in firefox but it has been working for me for the last few days but has stopped working and I can not figure out why. I make a AXAX POST Request using an IFrame. When I get the response I use this: function startLoad(){ $.get("update.php", function(data){ if(data==''){ startLoad(); } else{ document.getElementById("tweetform").submit(); } }); } However, from firebug, I get this: document.getElementById("tweetform").submit is not a function [Break on this error] document.getElementById("tweetform").submit(); I know submit exists, but what is going on? Thanks all

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• Delete current row in a <table> with jQuery

  - by omgkurtnilsen

  I have a table that lists a bunch of customers. The last cell is an ajax delete button. I want the row containing the deleted customer to be deleted through jQuery. <table> <tr><td>Customer info 1</td><td><a href="javascript:deleteCustomer(1);">Delete</a></td> <tr><td>Customer info 2</td><td><a href="javascript:deleteCustomer(2);">Delete</a></td> function deleteCustomer(customerId) { $.post("somepage.php", {cid:customerId}, function(data){ //...delete the row that called the function... }

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• Getting Top (starting no , Ending no) rows from sqlserver

  - by Krishna Thota

  I'm using Grid view in my asp.net page and I'm fetching data from SQL Server and placing in my grid view. Now my problem is, I'm using paging and placing 50 rows per page in Grid view. I would like to fetch top 50 rows from database in the start up and bind to the Grid View and when i click on next page, then again go to the database and fetch Second Top 50 rows and bind to GV. and this process hasto continue until last row is fetched from Database. Can you tell me How to write Query in achieving this??

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• different for lusses java

  - by Ayrton

  Hi I'm having some difficulties with the following problem: I'm making a little game where you're at a specific spot and each spot has each some possible directions. The available directions are N(ord),E(ast),S,W . I use the function getPosDirections to get the possible directions of that spot. The function returns the directions into an ArrayList e.g. for spot J3: [E,W] Now the game goes like this: 2 dices will be rolled so you get a number between 2 and 12, this number represents the number of steps you can make. What I want is an ArrayList of all the possible routes e.g.: I throw 3 and I'm currently at spot J3: [[E,N,E],[E,N,S],[E,S,E],[E,S,S],[W,N,E],[W,N,S],[W,S,E],[W,S,S]] How would obtain the last mentioned Array(list) Thanks in advance

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• C++, Get text from a website, part 3

  - by pure841

  So, thanks for all the help guys, I am just have one last problem, I am putting the website source in a char var, and then reading the product title (I have gotten that), however it only works if I take part of the source, or only the html from one of the featured products on neweggs page. I think the program is crashing, because it doesnt know which title to pick when I need to get all three titles and put them into an array. Any ideas? Thanks. Here is the parser code: http://paste2.org/p/809045 Any solution is greatly appreciated.

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