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  • Design pattern for adding / removing elements

    - by de3
    Wikipedia's definition for Iterator pattern design: the Iterator pattern is a design pattern in which iterators are used to access the elements of an aggregate object sequentially without exposing its underlying implementation. Iterator interface in java provides the following methods hasNext() next() remove() Is there a pattern design, or a java interface for inserting / deleting elements, and getting length of the aggregate object, in addition to iterating them? I know remove() is an optional method that can be used once per call to next(), but I am implementing a circular FIFO array and need a method delete() independent of iterator's next().

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  • Sanitizing DB inputs with XSLT

    - by azathoth
    Hello I've been looking for a method to strip my XML content of apostrophes (') like: <name> Jim O'Connor</name> since my DBMS is complaining of receiving those. By looking at the example described here, that is supposed to replace ' with '', I constructed the following script: <xsl:stylesheet version="1.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform"> <xsl:output omit-xml-declaration="yes" indent="yes" /> <xsl:template match="node()|@*"> <xsl:copy> <xsl:apply-templates select="node()|@*" /> </xsl:copy> </xsl:template> <xsl:template name="sqlApostrophe"> <xsl:param name="string" /> <xsl:variable name="apostrophe">'</xsl:variable> <xsl:choose> <xsl:when test="contains($string,$apostrophe)"> <xsl:value-of select="concat(substring-before($string,$apostrophe), $apostrophe,$apostrophe)" disable-output-escaping="yes" /> <xsl:call-template name="sqlApostrophe"> <xsl:with-param name="string" select="substring-after($string,$apostrophe)" /> </xsl:call-template> </xsl:when> <xsl:otherwise> <xsl:value-of select="$string" disable-output-escaping="yes" /> </xsl:otherwise> </xsl:choose> </xsl:template> <xsl:template match="node()|@*"> <xsl:apply-templates name="sqlApostrophe"/> </xsl:template> </xsl:stylesheet> However, the processor isn't accepting it. What am I missing here? Is there a better way to get rid of the apostrophes? Perhaps another approach for sanitizing DB inputs by using XSLT? Thanks for your help

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  • Timer vs setTimeout

    - by Christophe Herreman
    The docs for flash.utils.setTimeout() state: Instead of using this method, consider creating a Timer object, with the specified interval, using 1 as the repeatCount parameter (which sets the timer to run only once). Does anyone know if there is a (significant) advantage in doing so? Using setTimeout is a lot easier when you only need to delay 1 call.

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  • How do I get the current Cmdlet from another object?

    - by John Vottero
    What's the best way to get the current PowerShell Cmdlet from another object? If I create a helper object that is not a Cmdlet but will be called by Cmdlets, the helper methods may want to call WriteVerbose, WriteDebug etc. What's the best way to get access to that? Is there a static PowerShell method that will return the current Cmdlet or do I need to have the Cmdlet pass itself to the helper?

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  • Clear form button in HTML...do we really need this?

    - by craigmoliver
    I usually add the clear form button to HTML forms by default, but tonight I had what alcholics call a "moment of clarity". Why the hell do we add this? In all my years of using the internet I have never gotten to the end of the form and thought "crap!, I screwed up, I need to reset this!". Is this button actually necessary or a hold over from another time?

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  • Run shell command from jar?

    - by phineas
    The usual way to call a shell command from java is something like that: Process process = Runtime.getRuntime().exec(command); and works usually fine. But now I've exported my project to an executable jar file and callig shell commands doesn't work any more. Are there any explanations, solutions or workarounds for this problem? phineas -- edit: even keyboard interrupts (ctrl+c; ctrl+d) aren't recognized. terminal input won't work after killing java

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  • How to pass username and password for authentication in URL?

    - by Maggie
    Hi there. I need to pass the user name and password in the URL for a REST web services call. I know that if I pass it this way in Firefox, it works: https://{UserName}:{Password}@api.opsourcecloud.net/oec/0.9/myaccount Is there a proper way to pass user name and password aside from the above example? It's a Spring Security Context?

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  • Is there a way to accumulate a commit message with git while examing changes?

    - by carleeto
    I use "git add -p" to stage my changes. What I'd like to be able to do is to accumulate a commit message as I'm examining my changes and then when I call "git commit", it is already filled out for me and allows me to make changes before I commit. Now, its easy to do with git gui by simply examining the changes and editing the commit message text box accordingly, but I'm a command line guy and was wondering if this is possible at the command line.

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  • Reference Object calling function in Javascript

    - by Louis
    I have a makeshift events system in JS and the attacher looks like this: events.attach(events.NEW_TASK,this.update); Where this.update is a callback/handler/function. The problem is, when the dispatcher tries to call this handler, it loses it's original context. How can I bind the handler with the context of the object that calls the attach function without passing this as an argument and using that?

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  • text from a file turned into a variable?

    - by b3y4z1d
    If I made a program that stores strings on a text file using the "list"-function(#include ), and then I want to copy all of the text from that file and call it something(so I can tell the program to type in all of the text I copied somewhere by using that one variable to refer to the text), do I use a string,double,int or what do I declare that chunk of text as? I'm making the program using c++ in a simple console application.

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  • Is arithmetic overflow/underflow generally checked in .Net framework methods?

    - by YWE
    For example, let's use the Add method of the ArrayList class. If I am using the default compiler settings in Visual Studio C# project in which arithmetic overflow is not checked, would ArrayList.Add() throw an OverflowException if I added too many items? Would surrounding the method call with checked or unchecked make any difference? BTW, I would write a test program to determine the answer to this question if I had Visual Studio available to me right now.

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  • How to change src (ajax ref in options (events: 'href') when calling refetchEvents

    - by Martin Glynn
    My site is for listing theatrical productions (http://theaterOnline.com) I want to use a drop down list to enable users to filter the listings by location or genre. The following code refreshes the screen: $("#cfilter").change(function() { $('#calendar').fullCalendar('refetchEvents' ) }) but I need to be able to change SRC in the ajax call below: $.ajax({ url: src, dataType: 'json', data: params, cache: options.cacheParam || false, success: reportEventsAndPop}) which is a passed parameter from eventSources[1] TIA for anyone who can help!

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  • Graceful Degradation with JSON.Parse

    - by Steve
    If a browser doesn't support JSON.parse, would it make sense to include json.js and call parseJSON in lieu? So the code would looks something like: var z; if (JSON.parse) z = JSON.parse(yada); else z = JSON.parseJSON(yada);

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  • use of ajax in django

    - by tazim
    Hi, I am new to ajax and django. I have written own XMLHttpRequest call on browser side I will have to manually set the header request.META['HTTP_X_REQUESTED_WITH'] to string XMLHttpRequest . How can I access these headers on browser side

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  • C++ function pointer as parameter

    - by Roland Soós
    Hello, I try to call a function which passed as function pointer with no argument, but I can't make it work. void *disconnectFunc; void D::setDisconnectFunc(void (*func)){ disconnectFunc = func; } void D::disconnected(){ *disconnectFunc; connected = false; }

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  • How to attach Gtk::Menu to Gtk::Widget

    - by krokoziabla
    Gtk::Menu has void Gtk::Menu::attach_to_widget(Widget& attach_widget, GtkMenuDetachFunc detacher) void Gtk::Menu::attach_to_widget (Widget& attach_widget) wrapper methods for void gtk_menu_attach_to_widget(GtkMenu *menu, GtkWidget *attach_widget, GtkMenuDetachFunc detacher) But why are they protected? If I want to make a pop-up menu on a widget, how, then, can I get access to it from the menu's activate call-back if not via these methods?

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  • AES and CBC in PHP

    - by Kane
    I am trying to encrypt a string in php using AES-128 and CBC, but when I call mcrypt_generic_init() it returns false. $cipher = mcrypt_module_open(MCRYPT_RIJNDAEL_128, '',MCRYPT_MODE_CBC, ''); $iv_size = mcrypt_enc_get_iv_size($cipher); $iv = mcrypt_create_iv($iv_size, MCRYPT_RAND); $res = mcrypt_generic_init($cipher, 'aaaa', $iv); //'aaaa' is a test key Can someone tell me why is returning 0/false? I read the php documentation and seems correct (http://us.php.net/manual/en/mcrypt.examples.php)

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  • Reset selection of wx.lib.calendar.Calendar control?

    - by Joseph
    I have a wx.lib.calendar.Calendar control (not wx.lib.calendar.CalendarCtrl!). I am selecting a number of days using the following function call: self.cal.AddSelect([days], 'green', 'white') This works, and draws the days highlighted. However, I cannot work out how to reverse this (i.e., clear the selection so the days go back to their normal colouring). Any hints, please?

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  • Get data from aspx.cs page to aspx page.

    - by Brad8118
    So I am using a jquery plug in that allows me to change the order of things in a list by dragging and dropping them. So my goal is to be able to grab a list of my objects (AlertInfo) and using it in a javascript function. I was able to use a json webservice call in a test project to pass the data to the page. But we don't have a webservice page now so I tried to grab it from a aspx.cs page and it hasn't worked. ///Aspx page: $.ajax({ type: "POST", url: "~/Alerts/GetAlerts", data: "{}", contentType: "application/json; charset=utf-8", dataType: "json", success: function (msg) { var data = eval("(" + msg.d + ")"); jQuery.each(data, function (rec) { AlertList[AlertList.length] = new objAlert(this.id, this.title, this.details, JSONDateSerializationFix(this.startdate), JSONDateSerializationFix(this.enddate)); UpdateDisplayList(); }) }, error: function (msg) { alert("BRAD" + msg); } The issue is that the Alerts page in "URL /Alerts/GetAlerts" is Alerts.aspx.cs. I can't figure out if I can use this ajax command to call a method in a aspx.cs page. //Code behind page aspx.cs [WebMethod] //[ScriptMethod(ResponseFormat = ResponseFormat.Json)] public string GetAlerts() { List list = AlertInfo.GetTestAlerts(); return new JavaScriptSerializer().Serialize(list); } public List GetAlertsList() { List list = AlertInfo.GetTestAlerts(); return list; ; } So I was hoping that I could load data into an asp control (dataList) and then grab the data //code behind page protected void Page_Load(object sender, EventArgs e) { dataListAlertList.DataSource = GetAlertsList(); dataListAlertList.DataBind(); } public static List<AlertInfo> GetTestAlerts() { List<AlertInfo> list = new List<AlertInfo>(); list.Add(new AlertInfo("0", "Alert 1 Title", "Alert 1 Detail", "10/10/2010", "10/10/2011")); list.Add(new AlertInfo("1", "Alert 2 Title", "Alert 2 Detail", "10/10/2010", "10/10/2011")); return list; } //.aspx page $(document).ready(function () { var a1 = $("#dataListAlertList").val(); // do fun stuff now. } But I keep getting undefined....

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