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  • Javascript object dependencies

    - by Anurag
    In complex client side projects, the number of Javascript files can get very large. However, for performance reasons it's good to concatenate these files, and compress the resulting file for sending over the wire. I am having problems in concatenating these as the dependencies are included after they are needed in some cases. For instance, there are 2 files: /modules/Module.js <requires Core.js> /modules/core/Core.js The directories are recursively traversed, and Module.js gets included before Core.js, which causes errors. This is just a simple example where dependencies could span across directories, and there could be other complex cases. There are no circular dependencies though. The Javascript structure I follow is similar to Java packages, where each file defines a single Object (I'm using MooTools, but that's irrelevant). The structure of each javascript file and the dependencies is always consistent: Module.js var Module = new Class({ Implements: Core, ... }); Core.js var Core = new Class({ ... }); What practices do you usually follow to handle dependencies in projects where the number of Javascript files is huge, and there are inter-file dependencies?

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  • jQuery attribute selector inside a jQuery object

    - by chifliiiii
    Im trying to set up a quicksand with multiple filters and the approach im taking in the following which im not sure if its the best. $filteredItems = $containerClone.find('.portfolio-item-marketing').filter(function(index){ if ( $filterA != 'all' && $filterB != 'all' ) { return jQuery(this).find('.portfolio-item-marketing[data-type~=' + $filterA + ']') || jQuery(this).find('.portfolio-item-marketing[data-type~=' + $filterB + ']'); } if ( $filterA != 'all' && $filterB == 'all' ) { return jQuery(this+'[data-type~='+$filterA+']') ; } if ( $filterA == 'all' && $filterB != 'all' ) { return jQuery(this).find('.portfolio-item-marketing[data-type~=' + $filterB + ']'); } if ( $filterA == 'all' && $filterB == 'all' ) { return jQuery(this).find('.portfolio-item-marketing'); } }); As you see in the code i tried 2 different methods ( First "if" and second "if" ). Im not sure if i can use find inside a filter but i also dont know how to get the attribute from the jQuery object. I can not use jQuery(this).attr('data-type') == $filterA Because the attribute maybe contain various filters .Thats why im trying to use jQuery "~=" Should i give up and end using a indexOf ?

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  • Keyboard navigation for jQuery Tabs

    - by Binyamin
    How to make Keyboard navigation left/up/right/down (like for photo gallery) feature for jQury Tabs with History? Demo without Keyboard feature in http://dl.dropbox.com/u/6594481/tabs/index.html Needed functions: 1. on keyboardtop/down make select and CSS showactivenested ajax tabs from 1-st to last level 2. on keyboardleft/right changeback/forwardcontent ofactivenested ajax tabs tab 3. an extra option, makeactivenested ajax tab on 'cursor-on' on concrete nested ajax tabs level Read more detailed question with example pictures in http://stackoverflow.com/questions/2975003/jquery-tools-to-make-keyboard-and-cookies-feature-for-ajaxed-tabs-with-history /** * @license * jQuery Tools @VERSION Tabs- The basics of UI design. * * NO COPYRIGHTS OR LICENSES. DO WHAT YOU LIKE. * * http://flowplayer.org/tools/tabs/ * * Since: November 2008 * Date: @DATE */ (function($) { // static constructs $.tools = $.tools || {version: '@VERSION'}; $.tools.tabs = { conf: { tabs: 'a', current: 'current', onBeforeClick: null, onClick: null, effect: 'default', initialIndex: 0, event: 'click', rotate: false, // 1.2 history: false }, addEffect: function(name, fn) { effects[name] = fn; } }; var effects = { // simple "toggle" effect 'default': function(i, done) { this.getPanes().hide().eq(i).show(); done.call(); }, /* configuration: - fadeOutSpeed (positive value does "crossfading") - fadeInSpeed */ fade: function(i, done) { var conf = this.getConf(), speed = conf.fadeOutSpeed, panes = this.getPanes(); if (speed) { panes.fadeOut(speed); } else { panes.hide(); } panes.eq(i).fadeIn(conf.fadeInSpeed, done); }, // for basic accordions slide: function(i, done) { this.getPanes().slideUp(200); this.getPanes().eq(i).slideDown(400, done); }, /** * AJAX effect */ ajax: function(i, done) { this.getPanes().eq(0).load(this.getTabs().eq(i).attr("href"), done); } }; var w; /** * Horizontal accordion * * @deprecated will be replaced with a more robust implementation */ $.tools.tabs.addEffect("horizontal", function(i, done) { // store original width of a pane into memory if (!w) { w = this.getPanes().eq(0).width(); } // set current pane's width to zero this.getCurrentPane().animate({width: 0}, function() { $(this).hide(); }); // grow opened pane to it's original width this.getPanes().eq(i).animate({width: w}, function() { $(this).show(); done.call(); }); }); function Tabs(root, paneSelector, conf) { var self = this, trigger = root.add(this), tabs = root.find(conf.tabs), panes = paneSelector.jquery ? paneSelector : root.children(paneSelector), current; // make sure tabs and panes are found if (!tabs.length) { tabs = root.children(); } if (!panes.length) { panes = root.parent().find(paneSelector); } if (!panes.length) { panes = $(paneSelector); } // public methods $.extend(this, { click: function(i, e) { var tab = tabs.eq(i); if (typeof i == 'string' && i.replace("#", "")) { tab = tabs.filter("[href*=" + i.replace("#", "") + "]"); i = Math.max(tabs.index(tab), 0); } if (conf.rotate) { var last = tabs.length -1; if (i < 0) { return self.click(last, e); } if (i > last) { return self.click(0, e); } } if (!tab.length) { if (current >= 0) { return self; } i = conf.initialIndex; tab = tabs.eq(i); } // current tab is being clicked if (i === current) { return self; } // possibility to cancel click action e = e || $.Event(); e.type = "onBeforeClick"; trigger.trigger(e, [i]); if (e.isDefaultPrevented()) { return; } // call the effect effects[conf.effect].call(self, i, function() { // onClick callback e.type = "onClick"; trigger.trigger(e, [i]); }); // default behaviour current = i; tabs.removeClass(conf.current); tab.addClass(conf.current); return self; }, getConf: function() { return conf; }, getTabs: function() { return tabs; }, getPanes: function() { return panes; }, getCurrentPane: function() { return panes.eq(current); }, getCurrentTab: function() { return tabs.eq(current); }, getIndex: function() { return current; }, next: function() { return self.click(current + 1); }, prev: function() { return self.click(current - 1); } }); // callbacks $.each("onBeforeClick,onClick".split(","), function(i, name) { // configuration if ($.isFunction(conf[name])) { $(self).bind(name, conf[name]); } // API self[name] = function(fn) { $(self).bind(name, fn); return self; }; }); if (conf.history && $.fn.history) { $.tools.history.init(tabs); conf.event = 'history'; } // setup click actions for each tab tabs.each(function(i) { $(this).bind(conf.event, function(e) { self.click(i, e); return e.preventDefault(); }); }); // cross tab anchor link panes.find("a[href^=#]").click(function(e) { self.click($(this).attr("href"), e); }); // open initial tab if (location.hash) { self.click(location.hash); } else { if (conf.initialIndex === 0 || conf.initialIndex > 0) { self.click(conf.initialIndex); } } } // jQuery plugin implementation $.fn.tabs = function(paneSelector, conf) { // return existing instance var el = this.data("tabs"); if (el) { return el; } if ($.isFunction(conf)) { conf = {onBeforeClick: conf}; } // setup conf conf = $.extend({}, $.tools.tabs.conf, conf); this.each(function() { el = new Tabs($(this), paneSelector, conf); $(this).data("tabs", el); }); return conf.api ? el: this; }; }) (jQuery); /** * @license * jQuery Tools @VERSION History "Back button for AJAX apps" * * NO COPYRIGHTS OR LICENSES. DO WHAT YOU LIKE. * * http://flowplayer.org/tools/toolbox/history.html * * Since: Mar 2010 * Date: @DATE */ (function($) { var hash, iframe, links, inited; $.tools = $.tools || {version: '@VERSION'}; $.tools.history = { init: function(els) { if (inited) { return; } // IE if ($.browser.msie && $.browser.version < '8') { // create iframe that is constantly checked for hash changes if (!iframe) { iframe = $("<iframe/>").attr("src", "javascript:false;").hide().get(0); $("body").append(iframe); setInterval(function() { var idoc = iframe.contentWindow.document, h = idoc.location.hash; if (hash !== h) { $.event.trigger("hash", h); } }, 100); setIframeLocation(location.hash || '#'); } // other browsers scans for location.hash changes directly without iframe hack } else { setInterval(function() { var h = location.hash; if (h !== hash) { $.event.trigger("hash", h); } }, 100); } links = !links ? els : links.add(els); els.click(function(e) { var href = $(this).attr("href"); if (iframe) { setIframeLocation(href); } // handle non-anchor links if (href.slice(0, 1) != "#") { location.href = "#" + href; return e.preventDefault(); } }); inited = true; } }; function setIframeLocation(h) { if (h) { var doc = iframe.contentWindow.document; doc.open().close(); doc.location.hash = h; } } // global histroy change listener $(window).bind("hash", function(e, h) { if (h) { links.filter(function() { var href = $(this).attr("href"); return href == h || href == h.replace("#", ""); }).trigger("history", [h]); } else { links.eq(0).trigger("history", [h]); } hash = h; window.location.hash = hash; }); // jQuery plugin implementation $.fn.history = function(fn) { $.tools.history.init(this); // return jQuery return this.bind("history", fn); }; })(jQuery); $(function() { $("#list").tabs("#content > div", {effect: 'ajax', history: true}); });

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  • Cannot create list in SharePoint 2010 using Client Object Model

    - by Boris
    I am trying to utilize SharePoint 2010 Client Object Model to create a List based on a custom template. Here's my code: public void MakeList(string title, string listTemplateGUID, int localeIdentifier) { string message; string listUrl; List newList; Guid template; ListCreationInformation listInfo; Microsoft.SharePoint.Client.ListCollection lists; try { listUrl = title.Replace(spaceChar, string.Empty); template = GetListTemplate((uint)localeIdentifier, listTemplateGUID); listInfo = new ListCreationInformation(); listInfo.Url = listUrl; listInfo.Title = title; listInfo.Description = string.Empty; listInfo.TemplateFeatureId = template; listInfo.QuickLaunchOption = QuickLaunchOptions.On; clientContext.Load(site); clientContext.ExecuteQuery(); lists = site.Lists; clientContext.Load(lists); clientContext.ExecuteQuery(); newList = lists.Add(listInfo); clientContext.ExecuteQuery(); } catch (ServerException ex) { //... } } Now, this particular part, newList = lists.Add(listInfo); clientContext.ExecuteQuery(); the one that is supposed to create the actual list, throws an exception: Message: Cannot complete this action. Please try again. ServerErrorCode: 2130239231 ServerErrorTypeName: Microsoft.SharePoint.SPException Could anyone please help me realize what am I doing wrong? Thanks.

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  • iPhone SDK: Rendering a CGLayer into an image object

    - by codemercenary
    Hi all, I am trying to add a curved border around an image downloaded and to be displayed in a UITableViewCell. In the large view (ie one image on the screen) I have the following: productImageView = [[UIImageView alloc] initWithImage:[UIImage imageNamed:product.image]]; [productImageView setAlpha:0.4]; productImageView.frame = CGRectMake(10.0, 30.0, 128.0, 128.0); CALayer *roundedlayer = [productImageView layer]; [roundedlayer setMasksToBounds:YES]; [roundedlayer setCornerRadius:7.0]; [roundedlayer setBorderWidth:2.0]; [roundedlayer setBorderColor:[[UIColor darkGrayColor] CGColor]]; [self addSubview:productImageView]; In the table view cell, to get it to scroll fast, an image needs to be drawn in the drawRect method of a UIView which is then added to a custom cell. so in drawRect - (void)drawRect:(CGRect)rect { ... point = CGPointMake(boundsX + LEFT_COLUMN_OFFSET, UPPER_ROW_TOP); //CALayer *roundedlayer = [productImageView layer]; //[roundedlayer setMasksToBounds:YES]; //[roundedlayer setCornerRadius:7.0]; //[roundedlayer setBorderWidth:2.0]; //[roundedlayer setBorderColor:[[UIColor darkGrayColor] CGColor]]; //[productImageView drawRect:CGRectMake(boundsX + LEFT_COLUMN_OFFSET, UPPER_ROW_TOP, IMAGE_WIDTH, IMAGE_HEIGHT)]; // [productImageView.image drawInRect:CGRectMake(boundsX + LEFT_COLUMN_OFFSET, UPPER_ROW_TOP, IMAGE_WIDTH, IMAGE_HEIGHT)]; So this works well, but if I remove the comment and try to show the rounded CA layer the scrolling goes really slow. To fix this I suppose I would have to render this image context into a different image object, and store this in an array, then set this image as something like: productImageView.image = (UIImage*)[imageArray objectAtIndex:indexPath.row]; My question is "How do I render this layer into an image?" TIA.

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  • Django Error - AttributeError: 'Settings' object has no attribute 'LOCALE_PATHS'

    - by Randy Simon
    I am trying to learn django by following along with this tutorial. I am using django version 1.1.1 I run django-admin.py startproject mysite and it creates the files it should. Then I try to start the server by running python manage.py runserver but here is where I get the following error. Traceback (most recent call last): File "manage.py", line 11, in <module> execute_manager(settings) File "/Library/Python/2.6/site-packages/django/core/management/__init__.py", line 362, in execute_manager utility.execute() File "/Library/Python/2.6/site-packages/django/core/management/__init__.py", line 303, in execute self.fetch_command(subcommand).run_from_argv(self.argv) File "/Library/Python/2.6/site-packages/django/core/management/base.py", line 195, in run_from_argv self.execute(*args, **options.__dict__) File "/Library/Python/2.6/site-packages/django/core/management/base.py", line 213, in execute translation.activate('en-us') File "/Library/Python/2.6/site-packages/django/utils/translation/__init__.py", line 73, in activate return real_activate(language) File "/Library/Python/2.6/site-packages/django/utils/translation/__init__.py", line 43, in delayed_loader return g['real_%s' % caller](*args, **kwargs) File "/Library/Python/2.6/site-packages/django/utils/translation/trans_real.py", line 205, in activate _active[currentThread()] = translation(language) File "/Library/Python/2.6/site-packages/django/utils/translation/trans_real.py", line 194, in translation default_translation = _fetch(settings.LANGUAGE_CODE) File "/Library/Python/2.6/site-packages/django/utils/translation/trans_real.py", line 172, in _fetch for localepath in settings.LOCALE_PATHS: File "/Library/Python/2.6/site-packages/django/utils/functional.py", line 273, in __getattr__ return getattr(self._wrapped, name) AttributeError: 'Settings' object has no attribute 'LOCALE_PATHS' Now, I can add a LOCAL_PATH atribute set to an empty string to my settings.py file but then it just complains about another setting and so on. What am I missing here?

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  • Working with a large data object between ruby processes

    - by Gdeglin
    I have a Ruby hash that reaches approximately 10 megabytes if written to a file using Marshal.dump. After gzip compression it is approximately 500 kilobytes. Iterating through and altering this hash is very fast in ruby (fractions of a millisecond). Even copying it is extremely fast. The problem is that I need to share the data in this hash between Ruby on Rails processes. In order to do this using the Rails cache (file_store or memcached) I need to Marshal.dump the file first, however this incurs a 1000 millisecond delay when serializing the file and a 400 millisecond delay when serializing it. Ideally I would want to be able to save and load this hash from each process in under 100 milliseconds. One idea is to spawn a new Ruby process to hold this hash that provides an API to the other processes to modify or process the data within it, but I want to avoid doing this unless I'm certain that there are no other ways to share this object quickly. Is there a way I can more directly share this hash between processes without needing to serialize or deserialize it? Here is the code I'm using to generate a hash similar to the one I'm working with: @a = [] 0.upto(500) do |r| @a[r] = [] 0.upto(10_000) do |c| if rand(10) == 0 @a[r][c] = 1 # 10% chance of being 1 else @a[r][c] = 0 end end end @c = Marshal.dump(@a) # 1000 milliseconds Marshal.load(@c) # 400 milliseconds Update: Since my original question did not receive many responses, I'm assuming there's no solution as easy as I would have hoped. Presently I'm considering two options: Create a Sinatra application to store this hash with an API to modify/access it. Create a C application to do the same as #1, but a lot faster. The scope of my problem has increased such that the hash may be larger than my original example. So #2 may be necessary. But I have no idea where to start in terms of writing a C application that exposes an appropriate API. A good walkthrough through how best to implement #1 or #2 may receive best answer credit.

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  • Django attribute error: 'module' object has no attribute 'is_usable'

    - by Robert A Henru
    Hi, I got the following error when calling the url in Django. It's working before, I guess it's related with some accidental changes I made, but I have no idea what they are. Thanks before for the help, Robert Environment: Request Method: GET Request URL: http://localhost:8000/time/ Django Version: 1.2 Python Version: 2.6.1 Installed Applications: ['django.contrib.auth', 'django.contrib.contenttypes', 'django.contrib.sessions', 'django.contrib.sites', 'django.contrib.messages', 'django.contrib.admin', 'djlearn.books'] Installed Middleware: ('django.middleware.common.CommonMiddleware', 'django.contrib.sessions.middleware.SessionMiddleware', 'django.middleware.csrf.CsrfViewMiddleware', 'django.contrib.auth.middleware.AuthenticationMiddleware', 'django.contrib.messages.middleware.MessageMiddleware') Traceback: File "/Library/Python/2.6/site-packages/django/core/handlers/base.py" in get_response 100. response = callback(request, *callback_args, **callback_kwargs) File "/Users/rhenru/Workspace/django/djlearn/src/djlearn/../djlearn/views.py" in current_datetime 16. return render_to_response('current_datetime.html',{'current_date':now,}) File "/Library/Python/2.6/site-packages/django/shortcuts/__init__.py" in render_to_response 20. return HttpResponse(loader.render_to_string(*args, **kwargs), **httpresponse_kwargs) File "/Library/Python/2.6/site-packages/django/template/loader.py" in render_to_string 181. t = get_template(template_name) File "/Library/Python/2.6/site-packages/django/template/loader.py" in get_template 157. template, origin = find_template(template_name) File "/Library/Python/2.6/site-packages/django/template/loader.py" in find_template 128. loader = find_template_loader(loader_name) File "/Library/Python/2.6/site-packages/django/template/loader.py" in find_template_loader 111. if not func.is_usable: Exception Type: AttributeError at /time/ Exception Value: 'module' object has no attribute 'is_usable'

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  • auto Focus (Hit Enter) Javascript function is working good in IE7 but not working in IE8

    - by James123
    Hi, I used a javascript FocusChange() in my aspx page. I have couple of controls and I need Hit enter key need to move next control based on tab index. It is working good in IE7 but not working in IE8... Please help me on this.. Thanks for your help in advance. The java script is given below. function FocusChange() { if (window.event.keyCode == 13) { var formLength = document.form1.length; // Get number of elements in the form var src = window.event.srcElement; // Gets the field having focus var currentTabIndex = src.getAttribute('tabindex'); // Gets its tabindex // scroll through all form elements and set focus in field having next tabindex for (var i = 0; i < formLength; i++) { if (document.form1.elements[i].getAttribute('tabindex') == currentTabIndex + 1) { for (var j = i; j <= formLength; j++) { if (document.form1.elements[j].disabled == false) { document.form1.elements[j].focus(); event.returnValue = false; event.cancel = true; return; } } } } } }

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  • NHibernate save / update event listeners: listening for child object saves

    - by James Allen
    I have an Area object which has many SubArea children: public class Area { ... public virtual IList<SubArea> SubAreas { get; set; } } he children are mapped as a uni-directional non-inverse relationship: public class AreaMapping : ClassMap<Area> { public AreaMapping() { HasMany(x => x. SubAreas).Not.Inverse().Cascade.AllDeleteOrphan(); } } The Area is my aggregate root. When I save an area (e.g. Session.Save(area) ), the area gets saved and the child SubAreas automatically cascaded. I want to add a save or update event listener to catch whenever my areas and/or subareas are persisted. Say for example I have an area, which has 5 SubAreas. If I hook into SaveEventListeners: Configuration.EventListeners.SaveEventListeners = new ISaveOrUpdateEventListener[] { mylistener }; When I save the area, Mylistener is only fired once only for area (SubAreas are ignored). I want the 5 SubAreas to be caught aswell in the event listener. If I hook into SaveOrUpdateEventListeners instead: Configuration.EventListeners.SaveOrUpdateEventListeners = new ISaveOrUpdateEventListener[] { mylistener }; When I save the area, Mylistener is not fired at all. Strangely, if I hook into SaveEventListeners and SaveOrUpdateEventListeners: Configuration.EventListeners.SaveEventListeners = new ISaveOrUpdateEventListener[] { mylistener }; Configuration.EventListeners.SaveOrUpdateEventListeners = new ISaveOrUpdateEventListener[] { mylistener }; When I save the area, Mylistener is fired 11 times: once for the area, and twice for each SubArea! (I think because NHIbernate is INSERTing the SubArea and then UPDATING with the area foreign key). Does anyone know what I'm doing wrong here, and how I can get the listener to fire once for each area and subarea?

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  • Struts2 example, not inserting records in mysql database because connection object is getting null

    - by Jugal
    This Code is working fine with simple application so the drivers are fine. so why the connection object is not able to initialise with drivers. import java.sql.Connection; import java.sql.DriverManager; import java.sql.SQLException; import java.sql.Statement; import com.opensymphony.xwork2.ActionSupport; public class Insert extends ActionSupport { public String execute() throws Exception, SQLException { String sql = ""; String url = "jdbc:mysql://localhost:3306/test"; //String dbName = "test"; String driverName = "org.gjt.mm.mysql.Driver"; String userName = "root"; String password = "root"; Connection con=null; Statement stmt=null; try { Class.forName(driverName).newInstance(); con = DriverManager.getConnection(url, userName, password); stmt = con.createStatement(); } catch (Exception e) { System.out.println(e.getMessage()); } }

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  • Implement System.Web.Caching.Cache Object in a controller to cache specific query

    - by Julien
    Hello World! I'm Julien and I have a question is it correct to implement my caching object like this in my controller : public class HomeController : BaseController { public static Cache cachingControl = new Cache(); ... And I Use it like this : public ActionResult Home() { IndexViewData view = new IndexViewData(); view.UserId = UserId; if (cachingControl.Get("viewHome") != null) { view = (IndexViewData)cachingControl.Get("viewHome"); } else { view.allAdsList = AllAds(5000, 0); if (Request.QueryString["voirTous"] != null) view.loadGeneral(true); else view.loadGeneral(false); cachingControl.Insert("viewHome", view); } view.adsList = SetupSearch(5, false, 0); return View(view); } But When I Call this line : if (cachingControl.Get("viewHome") != null) { They trow me the error NullErrorException But I know it can be null this is why i'm put this condition to Do you have an alternative or a tips for me thank you! P.S.: I Know that the code is weird :P but I must to support it ... Julien

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  • Qt Object Linker Problem " undefined reverence to vtable"

    - by Thomas
    This is my header: #ifndef BARELYSOCKET_H #define BARELYSOCKET_H #include <QObject> //! The First Draw of the BarelySocket! class BarelySocket: public QObject { Q_OBJECT public: BarelySocket(); public slots: void sendMessage(Message aMessage); signals: void reciveMessage(Message aMessage); private: // QVector<Message> reciveMessages; }; #endif // BARELYSOCKET_H This is my class: #include <QTGui> #include <QObject> #include "type.h" #include "client.h" #include "server.h" #include "barelysocket.h" BarelySocket::BarelySocket() { //this->reciveMessages.clear(); qDebug("BarelySocket::BarelySocket()"); } void BarelySocket::sendMessage(Message aMessage) { } void BarelySocket::reciveMessage(Message aMessage) { } I get the Linker Problem : undefined reference to 'vtable for barelySocket' This should mean, i have a virtual Function not implemented. But as you can see, there is non. I comment the vector cause that should solve the Problem, but i does not. The Message is a complex struct, but even converting it to int did not solve it. I searched Mr G but he could not help me. Thank you for your support, Thomas

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  • Jackson object mapping - map incoming JSON field to protected property in base class

    - by Pete
    We use Jersey/Jackson for our REST application. Incoming JSON strings get mapped to the @Entity objects in the backend by Jackson to be persisted. The problem arises from the base class that we use for all entities. It has a protected id property, which we want to exchange via REST as well so that when we send an object that has dependencies, hibernate will automatically fetch these dependencies by their ids. Howevery, Jackson does not access the setter, even if we override it in the subclass to be public. We also tried using @JsonSetter but to no avail. Probably Jackson just looks at the base class and sees ID is not accessible so it skips setting it... @MappedSuperclass public abstract class AbstractPersistable<PK extends Serializable> implements Persistable<PK> { @Id @GeneratedValue(strategy = GenerationType.AUTO) private PK id; public PK getId() { return id; } protected void setId(final PK id) { this.id = id; } Subclasses: public class A extends AbstractPersistable<Long> { private String name; } public class B extends AbstractPersistable<Long> { private A a; private int value; // getter, setter // make base class setter accessible @Override @JsonSetter("id") public void setId(Long id) { super.setId(id); } } Now if there are some As in our database and we want to create a new B via the REST resource: @POST @Consumes(MediaType.APPLICATION_JSON) @Produces(MediaType.APPLICATION_JSON) @Transactional public Response create(B b) { if (b.getA().getId() == null) cry(); } with a JSON String like this {"a":{"id":"1","name":"foo"},"value":"123"}. The incoming B will have the A reference but without an ID. Is there any way to tell Jackson to either ignore the base class setter or tell it to use the subclass setter instead? I've just found out about @JsonTypeInfo but I'm not sure this is what I need or how to use it. Thanks for any help!

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  • Setting corelocation results to NSNumber object parameters

    - by Dan Ray
    This is a weird one, y'all. - (void)locationManager:(CLLocationManager *)manager didUpdateToLocation:(CLLocation *)newLocation fromLocation:(CLLocation *)oldLocation { CLLocationCoordinate2D coordinate = newLocation.coordinate; self.mark.longitude = [NSNumber numberWithDouble:coordinate.longitude]; self.mark.latitude = [NSNumber numberWithDouble:coordinate.latitude]; NSLog(@"Got %f %f, set %f %f", coordinate.latitude, coordinate.longitude, self.mark.latitude, self.mark.longitude); [manager stopUpdatingLocation]; manager.delegate = nil; if (self.waitingForLocation) { [self completeUpload]; } } The latitude and longitude in that "mark" object are synthesized parameters referring to NSNumber iVars. In the simulator, my NSLog output for that line in the middle there reads: 2010-05-28 15:08:46.938 EverWondr[8375:207] Got 37.331689 -122.030731, set 0.000000 -44213283338325225829852024986561881455984640.000000 That's a WHOLE lot further East than 1 Infinite Loop! The numbers are different on the device, but similar--lat is still zero and long is a very unlikely high negative number. Elsewhere in the controller I'm accepting a button press and uploading a file (an image I just took with the camera) with its geocoding info associated, and I need that self.waitingForLocation to inform the CLLocationManager delegate that I already hit that button and once its done its deal, it should go ahead and fire off the upload. Thing is, up in the button-click-receiving method, I test see if CL is finished by testing self.mark.latitude, which seems to be getting set zero...

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  • android compile error: could not reserve enough space for object heap

    - by moonlightcheese
    I'm getting this error during compilation: Error occurred during initialization of VM Could not create the Java virtual machine. Could not reserve enough space for object heap What's worse, the error occurs intermittently. Sometimes it happens, sometimes it doesn't. It seems to be dependent on the amount of code in the application. If I get rid of some variables or drop some imported libraries, it will compile. Then when I add more to it, I get the error again. I've included the following sources into the application in the [project_root]/src/ directory: org.apache.httpclient (I've stripped all references to log4j from the sources, so don't need it) org.apache.codec (as a dependency) org.apache.httpcore (dependency of httpclient) and my own activity code consisting of nothing more than an instance of HttpClient. I know this has something to do with the amount of memory necessary during compile time or some compiler options, and I'm not really stressing my system while i'm coding. I've got 2GB of memory on this Core Duo laptop and windows reports only 860MB page file usage (haven't used any other memory tools. I should have plenty of memory and processing power for this... and I'm only compiling some common http libs... total of 406 source files. What gives? edit (4/30/2010-18:24): Just compiled some code where I got the above stated error. I closed some web browser windows and recompiled the same exact code with no edits and it compiled with no issue. this is definitely a compiler issue related to memory usage. Any help would be great.... because I have no idea where to go from here. Android API Level: 5 Android SDK rel 5 JDK version: 1.6.0_12 Sorry I had to repost this question because regardless of whether I use the native HttpClient class in the Android SDK or my custom version downloaded from apache, the error still occurs.

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  • android compile error: could not reserve enough space for object heap

    - by moonlightcheese
    I'm getting this error during compilation: Error occurred during initialization of VM Could not create the Java virtual machine. Could not reserve enough space for object heap What's worse, the error occurs intermittently. Sometimes it happens, sometimes it doesn't. It seems to be dependent on the amount of code in the application. If I get rid of some variables or drop some imported libraries, it will compile. Then when I add more to it, I get the error again. I've included the following sources into the application in the [project_root]/src/ directory: org.apache.httpclient (I've stripped all references to log4j from the sources, so don't need it) org.apache.codec (as a dependency) org.apache.httpcore (dependency of httpclient) and my own activity code consisting of nothing more than an instance of HttpClient. I know this has something to do with the amount of memory necessary during compile time or some compiler options, and I'm not really stressing my system while i'm coding. I've got 2GB of memory on this Core Duo laptop and windows reports only 860MB page file usage (haven't used any other memory tools. I should have plenty of memory and processing power for this... and I'm only compiling some common http libs... total of 406 source files. What gives? Android API Level: 5 Android SDK rel 5 JDK version: 1.6.0_12

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  • Objective-C object release and allocation timing

    - by ryanjm.mp
    The code for this question is too long to be of any use. But I'm pretty sure my problem has to do with releasing a class. I have a helper class, ConnectionHelper.h/.m, that handles a NSURLConnection for me. Basically, I give it the URL I want and it returns the data (it happens to do a quick json parse on it too). It has a delegate which I set to the calling class (in this case: DownloadViewController). When it finishes the download, it calls [delegate didFinishParseOf:objectName withDictionary:dictionary];. Then in DownloadViewController I release ConnectionHelper and alloc a new one in order to download the next object. My problem is, I do this once, and then it creates the connection for the second one, and then my program just crashes. After this call: [[NSHTTPCookieStorage sharedHTTPCookieStorage] setCookieAcceptPolicy:NSHTTPCookieAcceptPolicyNever]; NSURLConnection *theConnection=[[NSURLConnection alloc] initWithRequest:theRequest delegate:self]; Then I don't think any of the following methods are called: - (NSCachedURLResponse *)connection:(NSURLConnection *)connection willCacheResponse:(NSCachedURLResponse *)cachedResponse - (void)connection:(NSURLConnection *)connection didReceiveResponse:(NSURLResponse *)response - (void)connection:(NSURLConnection *)connection didReceiveData:(NSData *)data - (void)connection:(NSURLConnection *)connection didFailWithError:(NSError *)error - (void)connection:(NSURLConnection *)connection didReceiveAuthenticationChallenge:(NSURLAuthenticationChallenge *)challenge So am I right in that I'm not releasing something? When I release it the first time, the dealloc function isn't being called. Is there a way I can "force" it to deallocate? Do I need to force it to? I didn't think it would matter since I allocating a new ConnectionHelper for the new call. How else would they overlap / conflict with each other? Thank you.

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  • Can't submit new object to WCF DataService because of Primary Key constraint

    - by Rob
    I've got a SQL database that uses Guid's for PK's and upon insert, it generates a NewId(). I have an EF data context setup pointing to that database with the primary keys setup with the Entity key:true, Setter:private and StoreGeneratedPattern:Identity because I want the DB to manage the keys and not have code set the PK property. I have an OData (System.Web.Data.Services.DataService) endpoint to access this data (just like: Hanselman did. I have another app that has a service reference to this service. Upon trying to create a new object from this reference (i.e. Product), the ProductId Primary Key is being defaulted to Guid.Empty when doing var serviceEntities = new ServiceEntities(serviceUri); //OData endpoint var product = new Product(); product.Name = "New Product"; serviceEntities.AddToProducts(product); serviceEntities.SaveChanges(); // error happens here When debugging, I look at the Product.ProductId property and it's set to Guid.Empty. When called SaveChanges, I do not want the ProductId field to be sent to the service. The response I get is: Error processing request stream. Property 'ProductId' is a read-only property and cannot be updated. Please make sure that this property is not present in the request payload. Is there a way to do this or what can I do to get this setup correctly and still have the DB generated the keys. Here is the same setup as the Product example above.

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  • Dynamic controls not creating with RSS reader function

    - by TuxMeister
    Hello, I am working on a test project for an RSS reader. I am using Chilkat's module for .NET 3.5. What I am trying to do is this: For each item in the RSS feed, I want to dynamically create some controls (labels) that contain stuff like the title, the link and the publication date. The problem is that only the first control comes up "rssTitle", but not the rest and it's definitely not creating the rest, nor cycling through the RSS items. Any ideas where I'm wrong in my code? Imports Chilkat Public Class Form1 Dim rss As New Chilkat.Rss Dim success As Boolean Dim rssTitle As New Label Dim rssLink As New Label Dim rssPubDate As New Label Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click success = rss.DownloadRss("http://www.engadget.com/rss.xml") If success <> True Then MessageBox.Show(rss.LastErrorText) Exit Sub End If Dim rssChannel As Chilkat.Rss rssChannel = rss.GetChannel(0) If rssChannel Is Nothing Then MessageBox.Show("No channel found.") Exit Sub End If Dim numItems As Long numItems = rssChannel.NumItems Dim i As Long For i = 0 To numItems - 1 Dim rssItem As Chilkat.Rss rssItem = rssChannel.GetItem(i) Me.Controls.Add(rssTitle) With rssTitle .Name = "rssTitle" & Me.Controls.Count.ToString + 1 .Text = "Title: " & rssItem.GetString("title") .Left = 12 .Top = 12 End With Me.Controls.Add(rssLink) With rssLink .Name = "rssLink" & Me.Controls.Count.ToString + 1 .Text = "Link: " & rssItem.GetString("link") .Left = 12 .Top = 12 End With Me.Controls.Add(rssPubDate) With rssPubDate .Name = "rssPubDate" & Me.Controls.Count.ToString + 1 .Text = "Pub date: " & rssItem.GetString("pubDate") .Left = 12 .Top = 12 End With Next End Sub End Class I'm grateful for any help. Thanks!

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  • [URGENT] IE: ‘nodeType’ is null or not an object

    - by Patrick
    hi, I'm having this issue on my website in IE (6,7,8): ‘nodeType’ is null or not an object The error refers to "f.nodeType" property. Basically f is undefined, so the issue is before, but I cannot fix it. Could you give me some help ? www.donatellabernardi.ch/drupal (from IE developer toolbar debug it appears to be this line that is throwing the error) (autocolumn.min.js line 13 expanded below for readability) function split($putInHere,$pullOutHere,$parentColumn,height){ if($pullOutHere.children().length){ $cloneMe=$pullOutHere.children(":first"); $clone=$cloneMe.clone(true); if($clone.attr("nodeType")==1&&!$clone.hasClass("dontend")){ ^^^^^^^^^^^^^^^^^^^^^^^^^^ Chokes on $putInHere.append($clone); if($clone.is("img")&&$parentColumn.height()<height+20){ $cloneMe.remove(); }else if(!$cloneMe.hasClass("dontsplit")&&$parentColumn.height()<height+20){ $cloneMe.remove(); }else if($clone.is("img")||$cloneMe.hasClass("dontsplit")){ $clone.remove(); }else{ $clone.empty(); if(!columnize($clone,$cloneMe,$parentColumn,height)){ if($cloneMe.children().length){ split($clone,$cloneMe,$parentColumn,height); } } if($clone.get(0).childNodes.length==0){ $clone.remove(); } } } } } Thanks

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  • Extracting bool from istream in a templated function

    - by Thomas Matthews
    I'm converting my fields class read functions into one template function. I have field classes for int, unsigned int, long, and unsigned long. These all use the same method for extracting a value from an istringstream (only the types change): template <typename Value_Type> Value_Type Extract_Value(const std::string& input_string) { std::istringstream m_string_stream; m_string_stream.str(input_string); m_string_stream.clear(); m_string_stream >> value; return; } The tricky part is with the bool (Boolean) type. There are many textual representations for Boolean: 0, 1, T, F, TRUE, FALSE, and all the case insensitive combinations Here's the questions: What does the C++ standard say are valid data to extract a bool, using the stream extraction operator? Since Boolean can be represented by text, does this involve locales? Is this platform dependent? I would like to simplify my code by not writing my own handler for bool input. I am using MS Visual Studio 2008 (version 9), C++, and Windows XP and Vista.

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  • ifstream Open function not working

    - by Dave Swersky
    I've been all over the ifstream questions here on SO and I'm still having trouble reading a simple text file. I'm working with Visual Studio 2008. Here's my code: // CPPFileIO.cpp : Defines the entry point for the console application. // #include "stdafx.h" #include <fstream> #include <conio.h> #include <iostream> #include <string> using namespace std; int _tmain(int argc, _TCHAR* argv[]) { ifstream infile; infile.open("input.txt", ifstream::in); if (infile.is_open()) { while (infile.good()) cout << (char) infile.get(); } else { cout << "Unable to open file."; } infile.close(); _getch(); return 0; } I have confirmed that the input.txt file is in the correct "working directory" by checking the value of argv[0]. The Open method just won't work. I'm also having trouble debugging- should I not be able to set a watch on "infile.good()" or "infile.is_open()"? I keep getting "Error: member function not present." EDIT: Updated code listing with full code from .CPP file. UPDATE: The file was NOT in the Current Working Directory. This is the directory where the project file is located. Moved it there and it works when debugging in VS.NET.

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  • C++ help with getline function with ifstream

    - by John
    So I am writing a program that deals with reading in and writing out to a file. I use the getline() function because some of the lines in the text file may contain multiple elements. I've never had a problem with getline until now. Here's what I got. The text file looks like this: John Smith // Client name 1234 Hollow Lane, Chicago, IL // Address 123-45-6789 // SSN Walmart // Employer 58000 // Income 2 // Number of accounts the client has 1111 // Account Number 2222 // Account Number ifstream inFile("ClientInfo.txt"); if(inFile.fail()) { cout << "Problem opening file."; } else { string name, address, ssn, employer; double income; int numOfAccount; getline(inFile, name); getline(inFile, address); // I'll stop here because I know this is where it fails. When I debugged this code, I found that name == "John", instead of name == "John Smith", and Address == "Smith" and so on. Am I doing something wrong. Any help would be much appreciated.

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  • How to prepopulate an Outlook MailItem and avoiding a com Exception from the object model guard

    - by torrente
    Hi, I work for a company that develops a CRM tool and offers integration with MS Office(2003 & 2007) from windows XP to 7. (I'm working using Win7) My task is to call an Outlook instance (using C#) from this CRM tool when the user wants to send an email and prepopulate with data of the CRM tool (email, recipient, etc..) All of this already works just fine. The problem I'm having is that Outlook's "object model guard" is throwing com Exception (Operation aborted (Exception from HRESULT: 0x80004004 (E_ABORT))) the moment I try to read a protected value from the mailItem (such as mail.bodyHTML). Example Snippet: using MSOutlook = Microsoft.Office.Interop.Outlook; //untrusted Instance _outlook = new MSOutlook.Application(); MSOutlook.MailItem mail = (MSOutlook.MailItem)_outlook.CreateItem(MSOutlook.OlItemType.olMailItem); //this where the Exception occurs string outlookStdHTMLBody = mail.HTMLBody; I've done quite a bit of reading and know that my Outlook Instance (derived by using new Application) is considered untrusted and therefore the "omg" kicks in. I do have a workaround for development: I'm running VS2010 as Administrator and if I run Outlook as Administrator as well - all is good. I suppose this is due to them having the same integrity levels(high) and the UAC(?) is not complaining. But that just ain't the way to go for deployment. Now the question is: Is there a way to obtain a trusted instance of Outlook so that I can avoid this exception? I've already read that when developing an Office Add-In using VSTO one can obtain a trusted Instance from the OnComplete event and/or using "ThisAddin" But I "merely" want to start an outlook instance and preopulate it, and do not want to develop an Add-In since this is not the requirement. And to make it clear - I have no problem with pop ups informing the user that outlook is being accessed - I just want to get rid of the exception! So how can I get around this problem using code? Any help is highly appreciated! Thomas

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