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  • CSS: Horizontal scrolling with overflow-x

    - by ams
    Hello fellow programmers, I was wondering if there still isn't a good way to get a div to stretch and scroll horizontally, according to the images inside. -After all, it is 2011 now! The mega-width does the trick, but leaves an empty mega-space if not filled with images. If filled too much, images don't display. Same for the jQuery. The situation below is the best I can do after hours of Googling, but it isn't reliable enough. Thanks for your time. Ams * { margin:0; padding:0; } #one { width:200px; height:250px; overflow-x:auto; overflow-y:hidden; } #two { width:10000em; } #two img { float:left; } $(document).ready(function(){ var total=0; $(".calc").each(function(){ total += $(this).outerWidth(true); }); $("#two").css('width',total); alert(total); }); <div id="one"> <div id="two"> <img src="images/testimage3.jpg" width="480" height="192" class="calc"> <img src="images/testimage3.jpg" width="480" height="192" class="calc"> <img src="images/testimage3.jpg" width="480" height="192" class="calc"> <img src="images/testimage3.jpg" width="480" height="192" class="calc"> </div> </div>

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  • Apache CXF REST Services w/ Spring AOP

    - by jconlin
    I'm trying to get Apache CXF JAX-RS services working with Spring AOP. I've created a simple logging class: public class AOPLogger{ public void logBefore(){ System.out.println("Logging Before!"); } } My Spring configuration (beans.xml): <aop:config> <aop:aspect id="aopLogger" ref="test.aop.AOPLogger"> <aop:before method="logBefore" pointcut="execution(* test.rest.RestService(..))"/> </aop:aspect> </aop:config> <bean id="aopLogger" class="test.aop.AOPLogger"/> I always get an NPE in RestService when a call is made to a Method getServletRequest(), which has: return messageContext.getHttpServletRequest(); If I remove the aop configuration or comment it out from my beans.xml, everything works fine. All of my actual Rest services extend test.rest.RestService (which is a class) and call getServletRequest(). I'm just trying to just get AOP up and running based off of the example in the CXF JAX-RS documentation. Does anyone have any idea what I'm doing wrong? Thanks!

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  • "image contains error", trying to create and display images using google app engine

    - by bert
    Hello all the general idea is to create a galaxy-like map. I run into problems when I try to display a generated image. I used Python Image library to create the image and store it in the datastore. when i try to load the image i get no error on the log console and no image on the browser. when i copy/paste the image link (including datastore key) i get a black screen and the following message: The image “view-source:/localhost:8080/img?img_id=ag5kZXZ-c3BhY2VzaW0xMnINCxIHTWFpbk1hcBgeDA” cannot be displayed because it contains errors. the firefox error console: Error: Image corrupt or truncated: /localhost:8080/img?img_id=ag5kZXZ-c3BhY2VzaW0xMnINCxIHTWFpbk1hcBgeDA import cgi import datetime import urllib import webapp2 import jinja2 import os import math import sys from google.appengine.ext import db from google.appengine.api import users from PIL import Image #SNIP #class to define the map entity class MainMap(db.Model): defaultmap = db.BlobProperty(default=None) #SNIP class Generator(webapp2.RequestHandler): def post(self): #SNIP test = Image.new("RGBA",(100, 100)) dMap=MainMap() dMap.defaultmap = db.Blob(str(test)) dMap.put() #SNIP result = db.GqlQuery("SELECT * FROM MainMap LIMIT 1").fetch(1) if result: print"item found<br>" #debug info if result[0].defaultmap: print"defaultmap found<br>" #debug info string = "<div><img src='/img?img_id=" + str(result[0].key()) + "' width='100' height='100'></img>" print string else: print"nothing found<br>" else: self.redirect('/?=error') self.redirect('/') class Image_load(webapp2.RequestHandler): def get(self): self.response.out.write("started Image load") defaultmap = db.get(self.request.get("img_id")) if defaultmap.defaultmap: try: self.response.headers['Content-Type'] = "image/png" self.response.out.write(defaultmap.defaultmap) self.response.out.write("Image found") except: print "Unexpected error:", sys.exc_info()[0] else: self.response.out.write("No image") #SNIP app = webapp2.WSGIApplication([('/', MainPage), ('/generator', Generator), ('/img', Image_load)], debug=True) the browser shows the "item found" and "defaultmap found" strings and a broken imagelink the exception handling does not catch any errors Thanks for your help Regards Bert

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  • Dependency injection and factory

    - by legenden
    Trying to figure out how to best handle the following scenario: Assume a RequestContext class which has a dependency to an external service, such as: public class RequestContext : IRequestContext { private readonly ServiceFactory<IWeatherService> _weatherService; public RequestContext(ServiceFactory<IWeatherService> weatherService, UserLocation location, string query) { _weatherService = weatherService; ... What sort of dependency should I require in the class that will ultimately instantiate RequestContext? It could be ServiceFactory<IWeatherService>, but that doesn't seem right, or I could create an IRequestContextFactory for it along the lines of: public class RequestContextFactory : IRequestContextFactory { private readonly ServiceFactory<IWeatherService> _weatherService; public RequestContextFactory(ServiceFactory<IWeatherService> weatherService) { _weatherService = weatherService; } public RequestContext Create(UserLocation location, string query) { return new RequestContext(_weatherService, location, query); } } And then pass the IRequestContextFactory through constructor injection. This seems like a good way to do it, but the problem with this approach is that I think it hinders discoverability (devs must know about the factory and implement it, which is not really apparent). Is there a better/more discoverable way that I'm missing?

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  • Can I use a property placeholder with Spring EL?

    - by David Easley
    Before upgrading to Spring 3 I had this in my applicationContext.xml file: <bean class="com.northgateis.pole.ws.PolePayloadValidatingInterceptor"> <property name="validateRequest" value="${validateRequest}" /> <property name="validateResponse" value="${validateResponse}" /> </bean> where ${validateRequest) and ${validateRequest) refer to properties that may or may not be defined in my properties file. In Spring 2, if these proeprties were not present in the properties file the setters on the bean were not called and so the defaults hard-coded in PolePayloadValidatingInterceptor were used. After upgrading to Spring 3, it seems the behaviour is different: If the properties are not present in the properties file I get the following exception: SEVERE: Exception sending context initialized event to listener instance of class org.springframework.web.context.ContextLoaderListener org.springframework.beans.factory.BeanDefinitionStoreException: Invalid bean definition with name 'annotationMapping' defined in class path resource [com/northgateis/pole/ws/applicationContext-ws.xml]: Could not resolve placeholder 'validateRequest' at org.springframework.beans.factory.config.PropertyPlaceholderConfigurer.processProperties(PropertyPlaceholderConfigurer.java:272) at org.springframework.beans.factory.config.PropertyResourceConfigurer.postProcessBeanFactory(PropertyResourceConfigurer.java:75) at org.springframework.context.support.AbstractApplicationContext.invokeBeanFactoryPostProcessors(AbstractApplicationContext.java:640) at org.springframework.context.support.AbstractApplicationContext.invokeBeanFactoryPostProcessors(AbstractApplicationContext.java:615) at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:405) at org.springframework.web.context.ContextLoader.createWebApplicationContext(ContextLoader.java:272) I tried dabbling with Spring EL but the following doesn't seem to work: <bean class="com.northgateis.pole.ws.PolePayloadValidatingInterceptor"> <property name="validateRequest" value="${validateRequest?:true}" /> <property name="validateResponse" value="${validateResponse?:false}" /> </bean> The value after the Elvis operator is always used, even when the properties are defined in the proeprties file. Interesting that the syntax is accepted. Any suggestions?

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  • Problems with reading into buffer using boost::asio::async_read

    - by Max
    Good day. I have a Types.hpp file in my project. And within it i have: .... namespace RC { ..... ..... struct ViewSettings { .... }; ..... } In the Server.cpp file I'm including this Types.hpp file, and i have there: class Session { ..... RC::ViewSettings tmp; boost::asio::async_read(socket_, boost::asio::buffer(&tmp, sizeof(RC::ViewSettings)), boost::bind(&Session::Finish_Reading_Data, shared_from_this(), boost::asio::placeholders::error)); ..... } And during the compilation i have an errors: error C2825: 'F': must be a class or namespace when followed by '::' : see reference to class template instantiation 'boost::_bi::result_traits<R,F>' being compiled with [ R=boost::_bi::unspecified, F=void (__thiscall Session::* )(void) ] : see reference to class template instantiation 'boost::_bi::bind_t<R,F,L>' being compiled with [ R=boost::_bi::unspecified, F=void (__thiscall Session::* )(void), L=boost::_bi::list2<boost::_bi::value<boost::shared_ptr<Session>>,boost::arg<1>> ] error C2039: 'result_type' : is not a member of '`global namespace'' And the code like this works in proper way: int w; boost::asio::async_read(socket_, boost::asio::buffer(&w, sizeof(int)), boost::bind(&Session::Handle_Read_Width, shared_from_this(), boost::asio::placeholders::error)); Please, help. What's the problem here? Thanks in advance.

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  • Altering lazy-loaded object's private variables

    - by Kevin Pang
    I'm running into an issue with private setters when using NHibernate and lazy-loading. Let's say I have a class that looks like this: public class User { public int Foo {get; private set;} public IList<User> Friends {get; set;} public void SetFirstFriendsFoo() { // This line works in a unit test but does nothing during a live run with // a lazy-loaded Friends list Users(0).Foo = 1; } } The SetFirstFriendsFoo call works perfectly inside a unit test (as it should since objects of the same type can access each others private properties). However, when running live with a lazy-loaded Friends list, the SetFirstFriendsFoo call silently fails. I'm guessing the reason for this is because at run-time, the Users(0).Foo object is no longer of type User, but of a proxy class that inherits from User since the Friends list was lazy-loaded. My question is this: shouldn't this generate a run-time exception? You get compile-time exceptions if you try to access another class's private properties, but when you run into a situation like this is looks like the app just ignores you and continues along its way.

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  • Applying the Hibernate filter attribute to a Bag with a many-to-many relationship

    - by David P
    Consider the following Hibernate mapping file: <hibernate-mapping ...> <class name="ContentPackage" table="contentPackages"> <id name="Id" column="id" type="int"><generator class="native" /></id> ... <bag name="Clips" table="contentAudVidLinks"> <key column="fk_contentPackageId"></key> <many-to-many class="Clip" column="fk_AudVidId"></many-to-many> <filter name="effectiveDate" condition=":asOfDate BETWEEN startDate and endDate" /> </bag> </class> </hibernate-mapping> When I run the following command: _session.EnableFilter("effectiveDate").SetParameter("asOfDate", DateTime.Today); IList<ContentPackage> items = _session.CreateCriteria(typeof(ContentPackage)) .Add(Restrictions.Eq("Id", id)) .List<ContentPackage>(); The resulting SQL has the WHERE clause on the intermediate mapping table (contentAudVidLinks), rather than the "Clips" table even though I have added the filter attribute to the Bag of Clips. What am I doing wrong?

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  • error: expected constructor, destructor, or type conversion before '(' token

    - by jonathanasdf
    include/TestBullet.h:12: error: expected constructor, destructor, or type conver sion before '(' token I hate C++ error messages... lol ^^ Basically, I'm following what was written in this post to try to create a factory class for bullets so they can be instantiated from a string, which will be parsed from an xml file, because I don't want to have a function with a switch for all of the classes because that looks ugly. Here is my TestBullet.h: #pragma once #include "Bullet.h" #include "BulletFactory.h" class TestBullet : public Bullet { public: void init(BulletData& bulletData); void update(); }; REGISTER_BULLET(TestBullet); <-- line 12 And my BulletFactory.h: #pragma once #include <string> #include <map> #include "Bullet.h" #define REGISTER_BULLET(NAME) BulletFactory::reg<NAME>(#NAME) #define REGISTER_BULLET_ALT(NAME, CLASS) BulletFactory::reg<CLASS>(NAME) template<typename T> Bullet * create() { return new T; } struct BulletFactory { typedef std::map<std::string, Bullet*(*)()> bulletMapType; static bulletMapType map; static Bullet * createInstance(char* s) { std::string str(s); bulletMapType::iterator it = map.find(str); if(it == map.end()) return 0; return it->second(); } template<typename T> static void reg(std::string& s) { map.insert(std::make_pair(s, &create<T>)); } }; Thanks in advance.

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  • bxSlider-4 text slide pass into the next slide

    - by Martialp
    I use http://bxslider.com/ to slide some content, just simple text. But it seem to have a problem with the text, not the image. I post a simple live exemple : http://jsfiddle.net/Sbt75/324/ As you can see on the exemple, we see the previous text from the previous slide on the left of the active slide. <div class="row"> <div class="large-6 columns"> <ul class="bxslider"> <li><p>Lorem ipsum dolor sit amet, consectetur adipisicing elit. Accusantium, obcaecati, laudantium, blanditiis, adipisci quod eaque porro sapiente eligendi dicta voluptates voluptatum sunt aperiam totam modi quis vitae maxime! Dolor, possimus.</p></li> <li>Lorem ipsum dolor sit amet, consectetur adipisicing elit. Odit, recusandae, delectus amet ipsa voluptate tempora architecto ad blanditiis officia perspiciatis nesciunt at ducimus quas nihil fuga. Qui optio minima accusamus?</li> <li><p class="right"> il etait une fois un grand mechant loupqui s'appelet jean et qui aimer courir dans l'herbe avec une grande harpe pour jouer dvant les enfants Lorem ipsum dolor sit amet, consectetur adipisicing elit. Odit, recusandae, delectus amet ipsa voluptate tempora architecto ad blanditiis officia perspiciatis nesciunt at ducimus quas nihil fuga. Qui optio minima accusamus? </p> </li> </ul> </div> </div> $(document).ready(function(){ $('.bxslider').bxSlider({ auto: false, autoControls: false, nextSelector: '#slider-next', prevSelector: '#slider-prev', nextText: 'Onward ?', prevText: '? Go back' }); });

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  • Connecting to SFTP service via Java Runtime process

    - by ohseekay
    Under my project, I have a Java class file, inside of which I have a routine which executes the following external SFTP script file: #!/bin/sh echo "cd AV/OASIS" >> sftp echo "put $1 $2" >> sftp echo "get AV/OASIS/$2 $3$2" >> sftp echo "bye" >> sftp /usr/local/bin/sftp -b sftp id@domain cat /dev/null > sftp exit 0 The Java code which executes the script file is as below: String script = "full path of script"; Process p = Runtime.getRuntime().exec(script + " " + param1 + " " + param2 + " " + param3); However, I'm not sure why, but the log generated by the class file always shows the error "Host key verification failed. Connection closed." I'd isolated that line in the script which connected to the remote machine, and ran it on the local machine (where this class file and script file are stored), and the command executed successfully I'd manually run the command which the Java class file will execute and it also tested okay: $ script.sh param1 param2 param3 I'd tried to look up the error message on the Internet, and apparently it seems to have something to do with known_hosts. Could this be the reason, or is there something else I'm missing? Thanks so much!

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  • Crash on replacing map annotations

    - by Alwin
    Solved it, see below code I'm trying to replace annotations on my MapView depending on the distance between user location and annotation. The annotations are getting replaced like they should, but when I touch te mapview my app crashes. This is de code I have so far: NSMutableArray *tempArray = [[NSMutableArray alloc] init]; for (id object in self.mapAnnotations) { if([object isKindOfClass:[ClosedAnnotation class]]) { ClosedAnnotation *ann = (ClosedAnnotation *)object; CLLocation *tempLocation = [[CLLocation alloc] initWithLatitude:ann.coordinate.latitude longitude:ann.coordinate.longitude]; double distance = [self.currentLocation getDistanceFrom: tempLocation] / 1000; [tempLocation release]; if(distance <= 1.0){ [mapView removeAnnotation:object]; OpenAnnotation *openAnnotation = [[OpenAnnotation alloc] initWithLatitude:ann.coordinate.latitude longitude:ann.coordinate.longitude imageSrc:[ann getImageSrcForAnnotation] title:ann.title tekst:[ann getTextForAnnotation] imageSize:[ann getSizeForImage] username:[ann getUserNameForAnnotation] usertext:[ann getUserTextForAnnotation]]; [mapView addAnnotation:openAnnotation]; [tempArray addObject:openAnnotation]; [openAnnotation release]; } else { [tempArray addObject:object]; } } else if([object isKindOfClass:[OpenAnnotation class]]){ OpenAnnotation *ann = (OpenAnnotation *)object; CLLocation *tempLocation = [[[CLLocation alloc] initWithLatitude:ann.coordinate.latitude longitude:ann.coordinate.longitude] autorelease]; double distance = [self.currentLocation getDistanceFrom: tempLocation] / 1000; [tempLocation release]; if(distance > 1.0){ [mapView removeAnnotation:object]; ClosedAnnotation *closedAnnotation = [[ClosedAnnotation alloc] initWithLatitude:ann.coordinate.latitude longitude:ann.coordinate.longitude imageSrc:[ann getImageSrcForAnnotation] title:ann.title tekst:[ann getTextForAnnotation] imageSize:[ann getSizeForImage] username:[ann getUserNameForAnnotation] usertext:[ann getUserTextForAnnotation]]; [mapView addAnnotation:closedAnnotation]; [tempArray addObject:closedAnnotation]; [closedAnnotation release]; } else { [tempArray addObject:object]; } } } [self.mapAnnotations removeAllObjects]; [self.mapAnnotations addObjectsFromArray:tempArray]; [tempArray release]; I solved it by getting rid of the complete "two-class"-structure and handling everything within one annotation class. Works like a charm now.

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  • How do I get the collection of Model State Errors in ASP.NET MVC?

    - by Ryan Montgomery
    How do I get the collection of errors in a view? I don't want to use the Html Helper Validation Summary or Validation Message. Instead I want to check for errors and if any display them in specific format. Also on the input controls I want to check for a specific property error and add a class to the input. P.S. I'm using the Spark View Engine but the idea should be the same. So I figured I could do something like... <if condition="${ModelState.Errors.Count > 0}"> DispalyErrorSummary() </if> ....and also... <input type="text" value="${Model.Name}" class="?{ModelState.Errors["Name"] != string.empty} error" /> .... Or something like that. UPDATE My final solution looked like this: <input type="text" value="${ViewData.Model.Name}" class="text error?{!ViewData.ModelState.IsValid && ViewData.ModelState["Name"].Errors.Count() > 0}" id="Name" name="Name" /> This only adds the error css class if this property has an error.

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  • Reduce size and change text color of the bootstrap-datepicker field

    - by Lisarien
    Programing an Android application based on HTML5/JQuery launching in a web view, I'm using the Eternicode's bootstrap-datepicker. BTW I'm using Jquery 1.9.1 and Bootstrap 2.3.2 with bootstrap-responsive. The picker is working fine but unfortunately I get yet two issues which I was not able to solve at this time: the picker theme is not respected and some dates are not readable (see the attached picture). Some there is css conflict such as the datepicker's font is displayed white on white background. I'm not able to reduce the size of the date picker field such as it holds on alone row. My markup code is: <div class="row-fluid" style="margin-right:0px!important"> <label id="dateId" class="span6">One Date</label> <div id="datePurchase" class="input-append date"> <input data-format="yyyy-MM-dd" type="text" /> <span class="add-on"> <i data-time-icon="icon-time" data-date-icon="icon-calendar"></i> </span> </div> </div> I init the datepicker by Javascript: $("#dateId").datetimepicker({ pickTime: false, format: "dd/MM/yyyy", startDate: startDate, endDate: endDate, autoclose: true }); $("#dateId").on("changeDate", onChangeDate); Do you get any idea about these issues? Thanks very much

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  • jQuery plugin Breaks after ajax call

    - by Jason
    Hello, I am quite a newbie to jQuery/ajax but am having a problem with my site that im making. Basically at first the page loads fine. On the boxes is a fade caption, when the title of the caption is clicked you are brought to an ajax page. Once you use the 'Back' button on browser, or the 'Back to list' button i've made the caption fade plugin no longer works and the box i had previously clicked is no longer clickable. can anyone help? heres my website: http://www.jcianfrone.com/testing jquery: h**p://www.jcianfrone.com/testing/script.js HTML: <div id="pageContent"> <div class="item"><a href="#page6"><img src="images/wrk-kd.jpg" width="286" height="200" alt="Koodikkki"></a><span id="caption"><a href="#">Title</a><p>Description</p></span></div> <div class="item"><a href="#page7"><img src="images/wrk-kd.jpg" width="286" height="200" alt="Koodikkki"></a><span id="caption"><a href="#">Title</a><p>Description</p></span></div> <div class="item"><a href="#page8"><img src="images/wrk-kd.jpg" width="286" height="200" alt="Koodikkki"></a><span id="caption"><a href="#">Title</a><p>Description</p></span></div> <div class="item"><a href="#page9"><img src="images/wrk-kd.jpg" width="286" height="200" alt="Koodikkki"></a><span id="caption"><a href="#">Title</a><p>Description</p></span></div> </div> Many thanks in advance

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  • C# visually subclass datagridview control VS2005

    - by DRapp
    Maybe its something stupid, but I'm having a problem with a subclass of a DataGridView Control in VS2005 C#. I know I can subclass from almost anything by doing public class MyDataGridView : DataGridView {} no problem, and I put in some things / elements I want applicable globally. Now, I take this gridview and put into a custom user control that will contain other controls too. So I have something like created by the visual designer. I grab some buttons, label, and my derived "MyDataGridView" on it. public partial class MyCompoundDGVPlus : UserControl So, now, I can visually draw, move, change all sorts of settings as needed, no problem. Now, I want this "MyCompoundDGVPlus" class as the basis for other classes, of which I will manipulate settings specific, but want all to have the same look / feel, and otherwise similar flow, hence the derivations. I've even set the "modifiers" setting to public, so I SHOULD be able to modify any of the properties of the controls at any derived level. So, now, I create a new subclass of "MyFirstDetailedDGVPlus" derived from "MyCompoundDGVPlus". Ok visually, all the label, button, datagridview appear. However, now I want to specifically define the columns of the datagridview here in this class visually, but its locked. However, the LABEL on the form, I CAN get all the property settings.... What am I missing.

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  • UIViewTableCell didSelectRowAtIndexPath is calling but not pushing a view controller

    - by Kenneth
    Hi guys, so im having a UIViewController view with a UITableView. So the UIViewController class name is SelectionScreen. The UITableView class name is SelectionScreenTable. Picture: http://img717.imageshack.us/i/screenshot20100609atpm0.png/ I have declared a UITableView *selectionTable in SelectionScreen class and connected it to the xib file of the SelectionScreen what the problem is , is that when i click a row in the table,it stays selected as highlighted blue, it calls the didSelectRowAtIndexPath (checked with NSLog) but not pushing a new view which is called(GraphView). This is the code which i use to call the new controller WHICH WORKS with a normal button GraphView *aSelectionScreenViewController = [[GraphView alloc] initWithNibName:@"GraphView" bundle:nil]; [self presentModalViewController:aSelectionScreenViewController animated: YES]; [aSelectionScreenViewController release]; I searched around and found that I need to set a delegate for the table in the UITableView class itself on the viewload tableview.delegate = self; or self.tableview.delegate = self; But it was not working. the controller was still not being pushed, and yes i have checked the controller is not nil as i tried it with a simple button. So i was thinking whether i should set the delegate of the UITableView at the UIViewController instead, so i tried this code selectionTable.delegate = selectionTable.self; but obviously it did not work =\, it messed up the whole UITableView and caused all the cells to be its predefined settings. So does anybody have any idea on how i can get it to work.

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  • Hibernate and parent/child relations

    - by Marco
    Hi to all, I'm using Hibernate in a Java application, and i feel that something could be done better for the management of parent/child relationships. I've a complex set of entities, that have some kind of relationships between them (one-to-many, many-to-many, one-to-one, both unidirectional and bidirectional). Every time an entity is saved and it has a parent, to estabilish the relationship the parent has to add the child to its collection (considering a one-to-may relationship). For example: Parent p = (Parent) session.load(Parent.class, pid); Child c = new Child(); c.setParent(p); p.getChildren().add(c); session.save(c); session.flush(); In the same way, if i remove a child then i have to explicitly remove it from the parent collection too. Child c = (Child) session.load(Child.class, cid); session.delete(c); Parent p = (Parent) session.load(Parent.class, pid); p.getChildren().remove(c); session.flush(); I was wondering if there are some best practices out there to do this jobs in a different way: when i save a child entity, automatically add it to the parent collection. If i remove a child, automatically update the parent collection by removing the child, etc. For example, Child c = new Child(); c.setParent(p); session.save(c); // Automatically update the parent collection session.flush(); or Child c = (Child) session.load(Child.class, cid); session.delete(c); // Automatically updates its parents (could be more than one) session.flush(); Anyway, it would not be difficult to implement this behaviour, but i was wondering if exist some standard tools or well known libraries that deals with this issue. And, if not, what are the reasons? Thanks

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  • [Java] Nested methods vs "piped" methods, which is better?

    - by Michael Mao
    Hi: Since uni, I've programming in Java for 3 years, although I am not fully dedicated to this language, I have spent quite some time in it, nevertheless. I understand both ways, just curious which style do you prefer. public class Test{ public static void main(String[] args) { System.out.println(getAgent().getAgentName()); } private static Agent getAgent() { return new Agent(); }} class Agent{ private String getAgentName() { return "John Smith"; }} I am pretty happy with nested method calls such like the following public class Test{ public static void main(String[] args) { getAgentName(getAgent()); } private static void getAgentName(Agent agent) { System.out.println(agent.getName()); } private static Agent getAgent() { return new Agent(); }} class Agent { public String getName(){ return "John Smith"; }} They have identical output I saw "John Smith" twice. I wonder, if one way of doing this has better performance or other advantages over the other. Personally I prefer the latter, since for nested methods I can certainly tell which starts first, and which is after. The above code is but a sample, The code that I am working with now is much more complicated, a bit like a maze... So switching between the two styles often blows my head in no time.

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  • PHP autoloader: ignoring non-existing include

    - by Bart van Heukelom
    I have a problem with my autoloader: public function loadClass($className) { $file = str_replace(array('_', '\\'), '/', $className) . '.php'; include_once $file; } As you can see, it's quite simple. I just deduce the filename of the class and try to include it. I have a problem though; I get an exception when trying to load a non-existing class (because I have an error handler which throws exceptions). This is inconvenient, because it's also fired when you use class_exists() on a non-existing class. You don't want an exception there, just a "false" returned. I fixed this earlier by putting an @ before the include (supressing all errors). The big drawback with this, though, is that any parser/compiler errors (that are fatal) in this include won't show up (not even in the logs), resulting in a hard to find bug. What would be the best way to solve both problems at once? The easiest way would be to include something like this in the autoloader (pseudocode): foreach (path in the include_path) { if (is_readable(the path + the class name)) readable = true; } if (!readable) return; But I worry about the performance there. Would it hurt a lot? (Solved) Made it like this: public function loadClass($className) { $file = str_replace(array('_', '\\'), '/', $className) . '.php'; $paths = explode(PATH_SEPARATOR, get_include_path()); foreach ($paths as $path) { if (is_readable($path . '/' . $file)) { include_once $file; return; } } }

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  • SimpleModal can't bind event onShow

    - by Higgs Boson
    Hi All I can't seem to get this working, some help would be greatly appreciated. I have a page with the following code: $('.editname').click(function (e) { var src = "test.html"; $.modal('<iframe src="' + src + '" height="480" width="640" style="border:0">', { closeHTML:"<div class='no simplemodal-close'>Close</div>", containerCss:{ backgroundColor:"#fff", border:"10px solid #333", height:480, padding:"10px", width:640 }, opacity:50, overlayCss: {backgroundColor:"#fff"}, onShow: function (dialog) { $('.saveit', dialog.data[0]).click(function () { // close the dialog $.modal.close(); }); } }); }); The code for test.html (the contents of the modal window) is: <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml"> <head> <meta http-equiv="Content-Type" content="text/html; charset=UTF-8" /> <title>Untitled Document</title> <link href="css/reset.css" rel="stylesheet" type="text/css" /> <link href="css/layout.css" rel="stylesheet" type="text/css" /> <link href="css/text.css" rel="stylesheet" type="text/css" /> </head> <body> <h1>Test</h1> <div class='pointer spacertop'><a href="#" class="saveit">Save</a></div> </body> </html> The modal window appears, however clicking on the Save button (class saveit) in the modal window does not fire the click function. It does nothing. Please help. Thank you in advance.

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  • AssertionFailure: "null identifier" - FluentNH + SQLServerCE

    - by Stefan
    The code fails at session.Save(employee); with AssertionFailure "null identifier". What am I doing wrong? using FluentNHibernate.Cfg; using FluentNHibernate.Cfg.Db; using FluentNHibernate.Mapping; using NHibernate; using NHibernate.Cfg; using NHibernate.Tool.hbm2ddl; namespace FNHTest { public class Employee { public virtual int Id { get; private set; } public virtual string Name { get; set; } public virtual string Surname { get; set; } } public class EmployeeMap : ClassMap { public EmployeeMap() { Id(e = e.Id); Map(e = e.Name); Map(e = e.Surname); } } public class DB { private static ISessionFactory mySessionFactory = null; private static ISessionFactory SessionFactory { get { if (mySessionFactory == null) { mySessionFactory = Fluently.Configure() .Database(MsSqlCeConfiguration.Standard .ConnectionString("Data Source=MyDB.sdf")) .Mappings(m = m.FluentMappings.AddFromAssemblyOf()) .ExposeConfiguration(BuildSchema) .BuildSessionFactory(); } return mySessionFactory; } } private static void BuildSchema(Configuration configuration) { SchemaExport schemaExport = new SchemaExport(configuration); schemaExport.Execute(false, true, false); } public static ISession OpenSession() { return SessionFactory.OpenSession(); } } public class Program { public static void Main(string[] args) { var employee = new Employee { Name = "John", Surname = "Smith" }; using (ISession session = DB.OpenSession()) { session.Save(employee); } } } }

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  • Velocity framework servlet

    - by GustlyWind
    I have a module written in servlets and needs to be recently moved to velocity framework So in the process I am rewriting the web.xml to create velocity servlet object whcih calls our original servlet . Now if this has to be moved to <servlet> <servlet-name>VeloServlet</servlet-name> <servlet-class>org.apache.velocity.tools.view.servlet.VelocityViewServlet</servlet-class> </servlet> How can we acheive this and what are all changes need to use the existing servlet as it is. My Existing servlet looks like <servlet-name>DataBridgeServlet</servlet-name> <servlet-class>com.jda.pwm.databridge.framework.common.DataBridgeServlet</servlet-class> <init-param> <param-name>jda.databridge.config.path</param-name> <param-value>d:/usr/databridge/conf</param-value> </init-param> This is loaded using the url http://localhost:8080/databridge/databridgeservlet So in the newer case how velocity servlet calls this servlet

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  • Displaying music list using custom lists instead of array adapters

    - by Rahul Varma
    Hi, I have displayed the music list in a list view. The list is obtained from a website. I have done this using Arraylist. Now, i want to iterate the same program using custom lists and custom adapters instead of array list. The code i have written using array lists is... public class MusicListActivity extends Activity { MediaPlayer mp; File mediaFile; TextView tv; TextView albumtext; TextView artisttext; ArrayList<String> al=new ArrayList<String>(); //ArrayList<String> al=new ArrayList<String>(); ArrayList<String> node=new ArrayList<String>(); ArrayList<String> filepath=new ArrayList<String>(); ArrayList<String> imgal=new ArrayList<String>(); ArrayList<String> album=new ArrayList<String>(); ArrayList<String> artist=new ArrayList<String>(); ListView lv; Object[] webImgListObject; String[] stringArray; XMLRPCClient client; String loginsess; HashMap<?, ?> siteConn = null; //ImageView im; Bitmap img; String s; int d; int j; StreamingMediaPlayer sm; int start=0; Intent i; @Override protected void onCreate(Bundle savedInstanceState) { // TODO Auto-generated method stub super.onCreate(savedInstanceState); setContentView(R.layout.openadiuofile); lv=(ListView)findViewById(R.id.list1); al=getIntent().getStringArrayListExtra("titles"); //node=getIntent().getStringArrayListExtra("nodeid"); filepath=getIntent().getStringArrayListExtra("apath"); imgal=getIntent().getStringArrayListExtra("imgpath"); album=getIntent().getStringArrayListExtra("album"); artist=getIntent().getStringArrayListExtra("artist"); // ArrayAdapter<String> aa=new ArrayAdapter<String>(this,R.layout.row,R.id.text2,al); //lv.setAdapter(aa); try{ lv.setAdapter( new styleadapter(this,R.layout.row, R.id.text2,al)); }catch(Throwable e) { Log.e("openaudio error",""+e.toString()); goBlooey(e); } lv.setOnItemClickListener(new OnItemClickListener(){ @Override public void onItemClick(AdapterView<?> arg0, View arg1, int arg2, long arg3){ j=1; try{ d=arg2; String filep=filepath.get(d); String tit=al.get(d); String image=imgal.get(d); String singer=artist.get(d); String movie=album.get(d); sendpath(filep,tit,image,singer,movie); // getpath(n); }catch(Throwable t) { goBlooey(t); } } }); } @Override protected void onPause() { // TODO Auto-generated method stub super.onPause(); if(j==0) {i=new Intent(this,gorinkadashboard.class); startActivity(i);} } @Override protected void onResume() { // TODO Auto-generated method stub super.onResume(); j=0; } @Override public boolean onKeyDown(int keyCode, KeyEvent event) { if (keyCode==KeyEvent.KEYCODE_SEARCH) { Log.i("go","go"); return true; } return(super.onKeyDown(keyCode, event)); } public void sendpath(String n,String nn,String image,String singer,String movie) { Intent ii=new Intent(this,MusicPlayerActivity.class); ii.putExtra("path",n); ii.putExtra("titletxt",nn); //ii.putStringArrayListExtra("playpath",filepath); ii.putExtra("pos",d); ii.putExtra("image",image); ii.putStringArrayListExtra("imagepath",imgal); ii.putStringArrayListExtra("filepath", filepath); ii.putStringArrayListExtra("imgal", imgal); ii.putExtra("movie" ,movie ); ii.putExtra("singer",singer); ii.putStringArrayListExtra("album", album); ii.putStringArrayListExtra("artist",artist); ii.putStringArrayListExtra("tittlearray",al); startActivity(ii); } class styleadapter extends ArrayAdapter<String> { Context context=null; public styleadapter(Context context, int resource, int textViewResourceId, List<String> objects) { super(context, resource, textViewResourceId, objects); this.context=context; } @Override public View getView(int position, View convertView, ViewGroup parent) { final int i=position; LayoutInflater inflater = ((Activity) context).getLayoutInflater(); View v = inflater.inflate(R.layout.row, null); tv=(TextView)v.findViewById(R.id.text2); albumtext=(TextView)v.findViewById(R.id.text3); artisttext=(TextView)v.findViewById(R.id.text1); tv.setText(al.get(i)); albumtext.setText(album.get(i)); artisttext.setText(artist.get(i)); final ImageView im=(ImageView)v.findViewById(R.id.image); s="http://www.gorinka.com/"+imgal.get(i); // displyimg(s,v); // new imageloader(s,im); String imgPath=s; AsyncImageLoaderv asyncImageLoaderv=new AsyncImageLoaderv(); Bitmap cachedImage = asyncImageLoaderv.loadDrawable(imgPath, new AsyncImageLoaderv.ImageCallback() { public void imageLoaded(Bitmap imageDrawable, String imageUrl) { im.setImageBitmap(imageDrawable); } }); im.setImageBitmap(cachedImage); return v; } } public class imageloader implements Runnable{ private String ss; //private View v; //private View v2; private ImageView im; public imageloader(String s, ImageView im) { this.ss=s; //this.v2=v2; this.im=im; Thread thread = new Thread(this); thread.start(); } public void run(){ try { // URL url = new URL(ss); // URLConnection conn = url.openConnection(); // conn.connect(); HttpGet httpRequest = null; httpRequest = new HttpGet(ss); HttpClient httpclient = new DefaultHttpClient(); HttpResponse response = (HttpResponse) httpclient.execute(httpRequest); HttpEntity entity = response.getEntity(); BufferedHttpEntity bufHttpEntity = new BufferedHttpEntity(entity); InputStream is = bufHttpEntity.getContent(); // BufferedInputStream bis = new BufferedInputStream(is); Bitmap bm = BitmapFactory.decodeStream(is); Log.d("img","img"); // bis.close(); is.close(); im.setImageBitmap(bm); // im.forceLayout(); // v2.postInvalidate(); // v2.requestLayout(); } catch (Exception t) { Log.e("bitmap url", "Exception in updateStatus()", t); //goBlooey(t); // throw new RuntimeException(t); } } } private void goBlooey(Throwable t) { AlertDialog.Builder builder=new AlertDialog.Builder(this); builder .setTitle("Exception!") .setMessage(t.toString()) .setPositiveButton("OK", null) .show(); } } I have created the SongList.java, SongsAdapter.java and also SongsAdapterView.java. Their code is... public class SongsList { private String titleName; private String movieName; private String singerName; private String imagePath; private String mediaPath; // Constructor for the SongsList class public SongsList(String titleName, String movieName, String singerName,String imagePath,String mediaPath ) { super(); this.titleName = titleName; this.movieName = movieName; this.singerName = singerName; this.imagePath = imagePath; this.mediaPath = mediaPath; } public String gettitleName() { return titleName; } public void settitleName(String titleName) { this.titleName = titleName; } public String getmovieName() { return movieName; } public void setmovieName(String movieName) { this.movieName = movieName; } public String getsingerName() { return singerName; } public void setsingerName(String singerName) { this.singerName = singerName; } public String getimagePath() { return imagePath; } public void setimagePath(String imagePath) { this.imagePath = imagePath; } public String getmediaPath() { return mediaPath; } public void setmediaPath(String mediaPath) { this.mediaPath = mediaPath; } } public class SongsAdapter extends BaseAdapter{ private Context context; private List<SongsList> listSongs; public SongsAdapter(Context context, List<SongsList> listPhonebook){ this.context = context; this.listSongs = listSongs; } public int getCount() { return listSongs.size(); } public Object getItem(int position) { return listSongs.get(position); } public long getItemId(int position) { return position; } public View getView(int position, View view, ViewGroup viewGroup) { SongsList entry = listSongs.get(position); return new SongsAdapterView(context,entry); } } public SongsAdapterView(Context context, SongsList entry) { super(context); this.setOrientation(VERTICAL); this.setTag(entry); // TODO Auto-generated constructor stub View v = inflate(context, R.layout.row, null); TextView tvTitle = (TextView)v.findViewById(R.id.text2); tvTitle.setText(entry.gettitleName()); TextView tvMovie = (TextView)v.findViewById(R.id.text3); tvTitle.setText(entry.getmovieName()); TextView tvSinger = (TextView)v.findViewById(R.id.text1); tvTitle.setText(entry.getsingerName()); addView(v); } } Can anyone please tell me how to display the list using custom lists and custom adapters using the code above???

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  • Django aggregate query generating SQL error

    - by meepmeep
    I'm using Django 1.1.1 on a SQL Server 2005 db using the latest sqlserver_ado library. models.py includes: class Project(models.Model): name = models.CharField(max_length=50) class Thing(models.Model): project = models.ForeignKey(Project) reference = models.CharField(max_length=50) class ThingMonth(models.Model): thing = models.ForeignKey(Thing) timestamp = models.DateTimeField() ThingMonthValue = models.FloatField() class Meta: db_table = u'ThingMonthSummary' In a view, I have retrieved a queryset called 'things' which contains 25 Things: things = Thing.objects.select_related().filter(project=1).order_by('reference') I then want to do an aggregate query to get the average ThingMonthValue for the first 20 of those Things for a certain period, and the same value for the last 5. For the first 20 I do: averageThingMonthValue = ThingMonth.objects.filter(turbine__in=things[:20],timestamp__range="2009-01-01 00:00","2010-03-00:00")).aggregate(Avg('ThingMonthValue'))['ThingMonthValue__avg'] This works fine, and returns the desired value. For the last 5 I do: averageThingMonthValue = ThingMonth.objects.filter(turbine__in=things[20:],timestamp__range="2009-01-01 00:00","2010-03-00:00")).aggregate(Avg('ThingMonthValue'))['ThingMonthValue__avg'] But for this I get an SQL error: 'Only one expression can be specified in the select list when the subquery is not introduced with EXISTS.' The SQL query being used by django reads: SELECT AVG([ThingMonthSummary].[ThingMonthValue]) AS [ThingMonthValue__avg] FROM [ThingMonthSummary] WHERE ([ThingMonthSummary].[thing_id] IN (SELECT _row_num, [id] FROM ( SELECT ROW_NUMBER() OVER ( ORDER BY [AAAA].[id] ASC) as _row_num, [AAAA].[id] FROM ( SELECT U0.[id] FROM [Thing] U0 WHERE U0.[project_id] = 1 ) AS [AAAA]) as QQQ where 20 < _row_num) AND [ThingMonthSummary].[timestamp] BETWEEN '01/01/09 00:00:00' and '03/01/10 00:00:00') Any idea why it works for one slice of the Things and not the second? I've checked and the two slices do contain the desired Things correctly.

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