Search Results

Search found 22641 results on 906 pages for 'use case'.

Page 505/906 | < Previous Page | 501 502 503 504 505 506 507 508 509 510 511 512  | Next Page >

• Different Versions of an application in same java application server

  - by Cem

  Hi, We are utilizing citrix netscalar with more than 20 glassfish java application servers. Unfortunately we have to remove previous application before deploying a new version of it since we have same context for these two different application. This error-prone process leads some problems due to lack of attention in builds or other problems. In an urgent case, we simply want to redirect to all traffic to previous application. What is the best practice to run different version of an application in a substantial number of servers in same time? Thanks

  Read the article

• How to generate C# documentation to a CHM or HTML file?

  - by BrunoLM

  Is there a way to generate a readable document file from the documentation on the code directly from Visual Studio? (also considering 2010) If there isn't, what should I use to create a CHM or HTML file? Code example: /// <summary> /// Convert a number to string /// </summary> /// <param name="number">An integer number to be converted to string</param> /// <returns>Number as string</returns> /// <example> /// <code> /// var s = MyMethod(5); /// </code> /// </example> /// <exception cref="Exception">In case it can't convert</exception> /// <remarks> /// Whatever /// </remarks> public string MyMethod(int number) { return number.ToString(); }

  Read the article

• iPhone switch statement using enum

  - by Boris

  I have defined an enum in a header file of a class : typedef enum{ RED = 0, BLUE, Green } Colors; - (void) switchTest:(Colors)testColor; and in the implementation file I have : - (void) switchTest:(Colors)testColor{ if(testColor == RED){ NSLog(@"Red selected"); } switch(testColor){ case RED: NSLog(@"Red selected again !"); break; default: NSLog(@"default selected"); break; } } My code compiles correctly without warrnings. When calling the switchTest method with RED, the output is : "Red selected" but once the first line of the switch runs, the application quits unexpectedly and without warrnings/errors. I don't mind using if/else syntax but I would like to understand my mistake.

  Read the article

• Windsor Container: How to specify a public property should not be filled by the container?

  - by George Mauer

  When Instantiating a class, Windsor by default treats all public properties of the class as optional dependencies and tries to satisfy them. In my case, this creates a rather complicated circular dependency which causes my application to hang. How can I explicitly tell Castle Windsor that it should not be trying to satisfy a public property? I assume there must be an attribute to that extent. I can't find it however so please let me know the appropriate namespace/assembly. If there is any way to do this without attributes (such as Xml Configuration or configuration via code) that would be preferable since the specific library where this is happening has to date not needed a dependency on castle.

  Read the article

• JS Url GET vars - problem with encoding

  - by Martin

  Hey there! I'm having a bit of trouble here and I was hoping someone throws me a hint :) I'm getting some GET VARS with JS but I have trouble with non-latin charsets: cyrillic for example. The cyrillic var appears correct in the url but when I retrieve it with JS I get some dummy string. I was wondering of a function similar to "unescape" for such a case. Alternatively, if someone knows a way I could convert a cyrillic string to the same dummy string I get from the URL, it will still do me the trick, since all I need is compare. :) Thanks! Martin

  Read the article

• How to add Transactions with a DataSet created using the Add Connection Wizard?

  - by RoguePlanetoid

  I have a DataSet that I have added to my project where I can Insert and Add records using the Add Query function in Visual Studio 2010, however I want to add transactions to this, I have found a few examples but cannot seem to find one that works with these. I know I need to use the SQLClient.SQLTransaction Class somehow. I used the Add New Data Source Wizard and added the Tables/View/Functions I need, I just need an example using this process such as How to get the DataConnection my DataSet has used. Assuming all options have been set in the wizard and I am only using the pre-defined adapters and options asked for in this wizard, how to I add the Transaction logic to my Database. For example I have a DataSet called ProductDataSet with the XSD created for this, I have then added my Stock table as a Datasource and Added an AddStock method with a wizard, this also if a new item calls an AddItem method, if either of these fails I want to rollback the AddItem and AddStock in this case.

  Read the article

• Specification, modeling and programming are principially the same, right?

  - by Gabriel Šcerbák

  In formal specifications based on abstract algebraic types and equational theory you use formulas of equational theory to specify theory. System which will satisfy those constraints is called in formal logic a model. Modeling is process of creating a model, which abstracts of some aspects, which are unnecessary details for a specific case. So concrete system has to adhere to created model in observed aspects. Programming is a process of creating a program which will have specific behaviour - will perform specific algorithms - and programming languages through different paradigms enable us to think in a certain specific way, which abstracts of some details, usually machine specific ones. So could we be doing all those things at the same time, because they are principially the same? Is declarative programming the nearest attempt to do that? Could we use some sort f programming languages which will be good for programming as well as for modeling and specification?

  Read the article

• Rabbitmq 2.2 not working on Snow Leopard (SSL errors)

  - by ebeland

  When I start rabbitmq, I see the following message. I have Activating RabbitMQ plugins ... WARNING Undefined function crypto:des3_cbc_decrypt/5 WARNING Undefined function crypto:start/0 WARNING Undefined function ssl:close/1 WARNING Undefined function ssl:controlling_process/2 WARNING Undefined function ssl:peercert/1 WARNING Undefined function ssl:peername/1 WARNING Undefined function ssl:recv/3 WARNING Undefined function ssl:send/2 WARNING Undefined function ssl:sockname/1 WARNING Undefined function ssl:ssl_accept/3 0 plugins activated: I followed the advice here to install openssl and recompile erlang with a --with-ssl path set: http://old.nabble.com/2.1.1%3A-no-such-file-or-directory-crypto.app-message-prevents-broker-from-starting-td30011026.html When I recompiled erlang, I used the following .configure: ./configure \ --prefix=/usr/local/erlang/R13B04 \ --enable-smp-support \ --enable-threads \ --enable-darwin-64bit \ --with-ssl=/usr/include/openssl It compiled fine. Then, just in case, I reinstalled rabbit from macports. I still get the error. Am I using the wrong path for --with-ssl? Help?

  Read the article

• Using injected EntityManager in class hierarchies

  - by Emre Sahin

  The following code works: @Stateless @LocalBean public class MyClass { @PersistenceContext(name = "MyPU") EntityManager em; public void myBusinessMethod(MyEntity e) { em.persist(e); } } But the following hierarchy gives a TransactionRequiredException in Glassfish 3.0 (and standard JPA annotations with EclipseLink.) at the line of persist. @Stateless @LocalBean public class MyClass extends MyBaseClass { public void myBusinessMethod(MyEntity e) { super.update(e); } } public abstract class MyBaseClass { @PersistenceContext(name = "MyPU") EntityManager em; public void update(Object e) { em.persist(e); } } For my EJB's I collected common code in an abstract class for cleaner code. (update also saves who did the operation and when, all my entities implement an interface.) This problem is not fatal, I can simply copy update and sister methods to subclasses but I would like to keep all of them together in a single place. I didn't try but this may be because my base class is abstract, but I would like to learn a proper method for such a (IMHO common) use case.

  Read the article

• Is man-in-the-middle attack a security threat during SSH authentication using keys?

  - by JP19

  Hi, I am no expert in network security, so pardon if this question is not very smart :). I am automating logins to some machines using ssh. I am currently avoiding host-key warnings using StrictHostKeyChecking no. I naively understand that someone can impersonate as the server and I risk losing my password to him if that were the case. However, if I am using only public/private Key based authentication ( using PasswordAuthentication no ), can the intruder still cause harm? So basically, with ssh -o "StrictHostKeyChecking no" -o "PasswordAuthentication no" : 1) Can the intruder decipher my private key? 2) Are there any other security threats? regards, JP

  Read the article

• git: programmatically know by how much the branch is ahead/behind a remote branch

  - by Olivier

  I would like to extract the information that is printed after a github status, which looks like: # On branch master # Your branch is ahead of 'origin/master' by 2 commits. Of course I can parse the output of git status but this is not recommended since this human readable output is liable to change. There are two problems: How to know the remote tracked branch? It is often origin/branch but need not be. How to get the numbers? How to know whether it is ahead/behind? By how many commits? And what about the diverged branch case?

  Read the article

• filter to reverse lines of a text file

  - by Greg Hewgill

  I'm writing a small shell script that needs to reverse the lines of a text file. Is there a standard filter command to do this sort of thing? My specific application is that I'm getting a list of Git commit identifiers, and I want to process them in reverse order: git log --pretty=oneline work...master | grep -v DEBUG: | cut -d' ' -f1 | reverse The best I've come up with is to implement reverse like this: ... | cat -b | sort -rn | cut -f2- This uses cat to number every line, then sort to sort them in descending numeric order (which ends up reversing the whole file), then cut to remove the unneeded line number. The above works for my application, but may fail in the general case because cat -b only numbers nonblank lines. Is there a better, more general way to do this?

  Read the article

• ERD-CLASS design

  - by Mahesh

  Hello guyz,i am new to daatbase and class diagram.I just get scenarios from internet and try to develop ERD and Class Diagram for them.But the following scenario has caused me some problems, and i am not sure about my design. "Whenever an employee fills leave application form, the leave application should be appeared for approval to his/her team leader. Team Leader has the option to change the date of requested leave and to approve or reject the leave. Employee also has the option to change date of previously unapproved leaves or to cancel any of unapproved leave. In case of team leader, he can approve his own leaves. Management should be able to create categories of leaves like (Casual, Sick, Planned work, etc) and should be able to adjust the days allocated to each type of leave". I have identified these as entities for ERD 1) Employee(I think i dont need to make entity for Technical lead,since he is an employee) 2) LeaveHistory 3) LeaveCategory Plz correct me if the system need more classes or entities

  Read the article

• Firefox DOMContentLoaded event problem

  - by mck89

  Hi, i've created a script that works with the Dom so it has to wait until the Dom is ready before execute every operation. I want that this script can be included in two ways: In the head tag so that it is loaded before the Dom is ready. I've used document.addEventListener("DOMContentLoaded",function(){...},false) for this and it works well Loaded dinamically when the Dom is already loaded. In this case the script doesn't work because for some reasons if the Dom is already loaded the DOMContentLoaded event isn't fired So i want to know, is there a way to check if the Dom is already loaded so that the script can execute the code without using the DOMContentLoaded event?

  Read the article

• adjust selected File to FileFilter in a JFileChooser

  - by amarillion

  I'm writing a diagram editor in java. This app has the option to export to various standard image formats such as .jpg, .png etc. When the user clicks File-Export, you get a JFileChooser which has a number of FileFilters in it, for .jpg, .png etc. Now here is my question: Is there a way to have the extension of the default adjust to the selected file filter? E.g. if the document is named "lolcat" then the default option should be "lolcat.png" when the png filter is selected, and when the user selects the jpg file filter, the default should change to "lolcat.jpg" automatically. Is this possible? How can I do it? edit: Based on the answer below, I wrote some code. But it doesn't quite work yet. I've added a propertyChangeListener to the FILE_FILTER_CHANGED_PROPERTY, but it seems that within this method getSelectedFile() returns null. Here is the code. package nl.helixsoft; import java.awt.event.ActionEvent; import java.awt.event.ActionListener; import java.beans.PropertyChangeEvent; import java.beans.PropertyChangeListener; import java.io.File; import java.util.ArrayList; import java.util.List; import javax.swing.JButton; import javax.swing.JFileChooser; import javax.swing.JFrame; import javax.swing.filechooser.FileFilter; public class JFileChooserTest { public class SimpleFileFilter extends FileFilter { private String desc; private List<String> extensions; private boolean showDirectories; /** * @param name example: "Data files" * @param glob example: "*.txt|*.csv" */ public SimpleFileFilter (String name, String globs) { extensions = new ArrayList<String>(); for (String glob : globs.split("\\|")) { if (!glob.startsWith("*.")) throw new IllegalArgumentException("expected list of globs like \"*.txt|*.csv\""); // cut off "*" // store only lower case (make comparison case insensitive) extensions.add (glob.substring(1).toLowerCase()); } desc = name + " (" + globs + ")"; } public SimpleFileFilter(String name, String globs, boolean showDirectories) { this(name, globs); this.showDirectories = showDirectories; } @Override public boolean accept(File file) { if(showDirectories && file.isDirectory()) { return true; } String fileName = file.toString().toLowerCase(); for (String extension : extensions) { if (fileName.endsWith (extension)) { return true; } } return false; } @Override public String getDescription() { return desc; } /** * @return includes '.' */ public String getFirstExtension() { return extensions.get(0); } } void export() { String documentTitle = "lolcat"; final JFileChooser jfc = new JFileChooser(); jfc.setDialogTitle("Export"); jfc.setDialogType(JFileChooser.SAVE_DIALOG); jfc.setSelectedFile(new File (documentTitle)); jfc.addChoosableFileFilter(new SimpleFileFilter("JPEG", "*.jpg")); jfc.addChoosableFileFilter(new SimpleFileFilter("PNG", "*.png")); jfc.addPropertyChangeListener(JFileChooser.FILE_FILTER_CHANGED_PROPERTY, new PropertyChangeListener() { public void propertyChange(PropertyChangeEvent arg0) { System.out.println ("Property changed"); String extold = null; String extnew = null; if (arg0.getOldValue() == null || !(arg0.getOldValue() instanceof SimpleFileFilter)) return; if (arg0.getNewValue() == null || !(arg0.getNewValue() instanceof SimpleFileFilter)) return; SimpleFileFilter oldValue = ((SimpleFileFilter)arg0.getOldValue()); SimpleFileFilter newValue = ((SimpleFileFilter)arg0.getNewValue()); extold = oldValue.getFirstExtension(); extnew = newValue.getFirstExtension(); String filename = "" + jfc.getSelectedFile(); System.out.println ("file: " + filename + " old: " + extold + ", new: " + extnew); if (filename.endsWith(extold)) { filename.replace(extold, extnew); } else { filename += extnew; } jfc.setSelectedFile(new File (filename)); } }); jfc.showDialog(frame, "export"); } JFrame frame; void run() { frame = new JFrame(); JButton btn = new JButton ("export"); frame.add (btn); btn.addActionListener (new ActionListener() { public void actionPerformed(ActionEvent ae) { export(); } }); frame.setSize (300, 300); frame.pack(); frame.setVisible(true); } public static void main(String[] args) { javax.swing.SwingUtilities.invokeLater(new Runnable() { public void run() { JFileChooserTest x = new JFileChooserTest(); x.run(); } }); } }

  Read the article

• C#: access a class property when the property identifier is known as a string

  - by Hans

  Hi, I'm using LINQ to Entities on a database which structure is not known in advance. I use reflection to retrieve the information, and now have a list of strings with all the table names. Because I use LINQ, I also have the datasource encapsulated in a C# class (linqContext), with each table being a property of that class. What I want to achieve is this: Assume one of the strings in the table names list is "Employees". This is known in code, I want to do the following: linqContext.Employees.DoSomethingHere(); Is this possible? I know that if all the propertie were just items in a list, I could use the string as indexer, linqContext["Employees"]. However, this is not the case :(

  Read the article

• Is it safe to catch an access violation in this scenario?

  - by Eloff

  I've read a lot, including here on SO that suggests this is a very bad idea in general and that the only thing you can do safely is exit the program. I'm not sure that this is true. This is for a pooling memory allocator that hands off large allocations to malloc. During pool_free() a pointer needs to be checked it it belongs to a pool or was allocated with malloc. By rounding the address down to the nearest 1MB boundary, I get a pointer to the beginning of a block of memory in the pool, or undefined if malloc was used. In the first case I can easily verify that the block of memory belongs to the pool, but, if it does not I will either fail this verification, or I will get an access violation (note that this is a read-only process). Could I not catch this with SEH (Windows) or handle the signal (POSIX) and simply treat it as a failed verification? (i.e. this is only possible if malloc was used, so pass the ptr to free())

  Read the article

• MPI and C structs

  - by hanno

  I have to admit, I was quite shocked to see how many lines of code are required to transfer one C struct with MPI. Under what circumstances will it work to simply transmit a struct using the predefined dataype MPI_CHAR? Consider the following example: struct particle { double x; double y; long i; }; struct particle p; MPI_Isend(&p, sizeof(particle), MPI_CHAR, tag, MPI_COMM_WORLD, &sendr); In my case, all processes run on the same architecture. Is padding the only issue?

  Read the article

• Easiest way of checking if a string consists of unique characters?

  - by serg555

  I need to check in Java if a word consists of unique letters (case insensitive). As straight solution is boring, I came up with: For every char in a string check if indexOf(char) == lastIndexOf(char). Add all chars to HashSet and check if set size == string length. Convert a string to a char array, sort it alphabetically, loop through array elements and check if c[i] == c[i+1]. Currently I like #2 the most, seems like the easiest way. Any other interesting solutions?

  Read the article

• File.mkdir is not working and I can't understand why

  - by gotch4

  Hello, I've this brief snippet: String target = baseFolder.toString() + entryName; target = target.substring(0, target.length() - 1); File targetdir = new File(target); if (!targetdir.mkdirs()) { throw new Exception("Errore nell'estrazione del file zip"); } doesn't mattere if I leave the last char (that is usually a slash). It's done this way to work on both unix and windows. The path is actually obtained from the URI of the base folder. As you can see from baseFolder.toString() (baseFolder is of type URI and is correct). The base folder actually exists. I can't debug this because all I get is true or false from mkdir, no other explanations.The weird thing is that baseFolder is created as well with mkdir and in that case it works. Now I'm under windows. the value of target just before the creation of targetdir is "file:/C:/Users/dario/jCommesse/jCommesseDB" if I cut and paste it (without the last entry) in windows explore it works...

  Read the article

• Why does an onclick property set with setAttribute fail to work in IE?

  - by Aeon

  Ran into this problem today, posting in case someone else has the same issue. var execBtn = document.createElement('input'); execBtn.setAttribute("type", "button"); execBtn.setAttribute("id", "execBtn"); execBtn.setAttribute("value", "Execute"); execBtn.setAttribute("onclick", "runCommand();"); Turns out to get IE to run an onclick on a dynamically generated element, we can't use setAttribute. Instead, we need to set the onclick property on the object with an anonymous function wrapping the code we want to run. execBtn.onclick = function() { runCommand() }; BAD IDEAS: You can do execBtn.setAttribute("onclick", function() { runCommand() }); but it will break in IE in non-standards mode according to @scunliffe. You can't do this at all execBtn.setAttribute("onclick", runCommand() ); because it executes immediately, and sets the result of runCommand() to be the onClick attribute value, nor can you do execBtn.setAttribute("onclick", runCommand);

  Read the article

• shell script passing subset of arguments

  - by arav

  From the wrapper shell scripts i am calling the Java program. I want the Unix shell script to pass all the arguments to java program except the EMAIL argument. HOW Can i remove the EMAIL argument and pass the rest of the arguments to the java program. EMAIL argument can come at any position. valArgs() { until [ $# -eq 0 ]; do case $1 in -EMAIL) MAILFLAG=Y shift break ;; esac done } main() { valArgs "$@" $JAVA_HOME/bin/java -d64 -jar WEB-INF/lib/test.jar "$@"

  Read the article

• How to regex match a string of alnums and hyphens, but which doesn't begin or end with a hyphen?

  - by Shahar Evron

  I have some code validating a string of 1 to 32 characters, which may contain only alpha-numerics and hyphens ('-') but may not begin or end with a hyphen. I'm using PCRE regular expressions & PHP (albeit the PHP part is not really important in this case). Right now the pseudo-code looks like this: if (match("/^[\p{L}0-9][\p{L}0-9-]{0,31}$/u", string) and not match("/-$/", string)) print "success!" That is, I'm checking first that the string is of right contents, doesn't being with a '-' and is of the right length, and then I'm running another test to see that it doesn't end with a '-'. Any suggestions on merging this into a single PCRE regular expression? I've tried using look-ahead / look-behind assertions but couldn't get it to work.

  Read the article

• How do you get subversion diff summary to ignore mergeinfo properties?

  - by tolomea

  I have subversion 1.6.5 client and 1.5.4 server. And I mostly only care about diffs on fully repository paths, not working copies. When diffing branches ones that have been merged already show up as identical except for the mergeinfo properties. This is a touch annoying for a human who has to then look through the changes looking for anything that might be a real change. However it's somewhat worse in out use case as we have scripts that run around checking on the merge state of various things and the mergeinfo properties cause them to highlight a lot of things as being out of sync when they aren't. Is there a way to get the diff summary to ignore the mergeinfo properties?

  Read the article

• Jquery find next/prev elements of a certain class but not necessarily siblings

  - by Gnuffo1

  The next, prev, nextAll and prevAll methods are very useful, but not if the elements you are trying to find are not in the same parent element. What I want to do is something like this: <div><span id="click">hello</span></div> <div><p class="find">world></p></div> When the span with the id "click" is pressed, I want to match the next element with the class "find", which in this case is not a sibling of the clicked element so next or nextAll won't work.

  Read the article

< Previous Page | 501 502 503 504 505 506 507 508 509 510 511 512  | Next Page >