Search Results

Search found 6209 results on 249 pages for 'composite pattern'.

Page 112/249 | < Previous Page | 108 109 110 111 112 113 114 115 116 117 118 119  | Next Page >

  • Simple Introduction to using the Enterprise Manager SOA/BPM Facade API by Jaideep Ganguli

    - by JuergenKress
    There may be times when you need to expose just a small section of what is displayed in the Enterprise Manager console for SOA/BPM (EM console). A simple example can be where stakeholders on the systems integration or customer teams want to monitor a dashboard of statistics on how many instances of a composite have been created and how many have faulted. You can see this in the EM, as shown below Some of these stakeholders may not have knowledge of  EM console and they just want a quick view into the statistics, without having to navigate EM. This post describes how to use the Oracle Fusion Middleware Infrastructure Management Java API  for Oracle SOA Suite (also called the Facade API)  to build a custom ADF page to display this information. If you want a quick introduction in using the Facade API, this post is for you. Read the complete article here. SOA & BPM Partner Community For regular information on Oracle SOA Suite become a member in the SOA & BPM Partner Community for registration please visit www.oracle.com/goto/emea/soa (OPN account required) If you need support with your account please contact the Oracle Partner Business Center. Blog Twitter LinkedIn Facebook Wiki Technorati Tags: Enterprise Manager,SOA Community,Oracle SOA,Oracle BPM,Community,OPN,Jürgen Kress

    Read the article

  • Don’t string together XML

    - by KyleBurns
    XML has been a pervasive tool in software development for over a decade.  It provides a way to communicate data in a manner that is simple to understand and free of platform dependencies.  Also pervasive in software development is what I consider to be the anti-pattern of using string manipulation to create XML.  This usually starts with a “quick and dirty” approach because you need an XML document and looks like (for all of the examples here, we’ll assume we’re writing the body of a method intended to take a Contact object and return an XML string): return string.Format("<Contact><BusinessName>{0}</BusinessName></Contact>", contact.BusinessName);   In the code example, I created (or at least believe I created) an XML document representing a simple contact object in one line of code with very little overhead.  Work’s done, right?  No it’s not.  You see, what I didn’t realize was that this code would be used in the real world instead of my fantasy world where I own all the data and can prevent any of it containing problematic values.  If I use this code to create a contact record for the business “Sanford & Son”, any XML parser will be incapable of processing the data because the ampersand is special in XML and should have been encoded as &amp;. Following the pattern that I have seen many times over, my next step as a developer is going to be to do what any developer in his right mind would do – instruct the user that ampersands are “bad” and they cannot be used without breaking computers.  This may work in many cases and is often accompanied by logic at the UI layer of applications to block these “bad” characters, but sooner or later someone is going to figure out that other applications allow for them and will want the same.  This often leads to the creation of “cleaner” functions that perform a replace on the strings for every special character that the person writing the function can think of.  The cleaner function will usually grow over time as support requests reveal characters that were missed in the initial cut.  Sooner or later you end up writing your own somewhat functional XML engine. I have never been told by anyone paying me to write code that they would like to buy a somewhat functional XML engine.  My employer/customer’s needs have always been for something that may use XML, but ultimately is functionality that drives business value. I’m not going to build an XML engine. So how can I generate XML that is always well-formed without writing my own engine?  Easy – use one of the ones provided to you for free!  If you’re in a shop that still supports VB6 applications, you can use the DomDocument or MXXMLWriter object (of the two I prefer MXXMLWriter, but I’m not going to fully describe either here).  For .Net Framework applications prior to the 3.5 framework, the code is a little more verbose than I would like, but easy once you understand what pieces are required:             using (StringWriter sw = new StringWriter())             {                 using (XmlTextWriter writer = new XmlTextWriter(sw))                 {                     writer.WriteStartDocument();                     writer.WriteStartElement("Contact");                     writer.WriteElementString("BusinessName", contact.BusinessName);                     writer.WriteEndElement(); // end Contact element                     writer.WriteEndDocument();                     writer.Flush();                     return sw.ToString();                 }             }   Looking at that code, it’s easy to understand why people are drawn to the initial one-liner.  Lucky for us, the 3.5 .Net Framework added the System.Xml.Linq.XElement object.  This object takes away a lot of the complexity present in the XmlTextWriter approach and allows us to generate the document as follows: return new XElement("Contact", new XElement("BusinessName", contact.BusinessName)).ToString();   While it is very common for people to use string manipulation to create XML, I’ve discussed here reasons not to use this method and introduced powerful APIs that are built into the .Net Framework as an alternative.  I’ve given a very simplistic example here to highlight the most basic XML generation task.  For more information on the XmlTextWriter and XElement APIs, check out the MSDN library.

    Read the article

  • Partner Webcast - Oracle WebCenter: Portal Highlights - 31 Oct 2013

    - by Roxana Babiciu
    Oracle WebCenter is the center of engagement for business. In order to succeed in today’s economy, organizations need to engage with information across all channels to ensure customers, partners and employees have access to the right information in the context of the business process in which they are engaged. The latest release of Oracle WebCenter addresses this challenge with updates across its complete portfolio. Nowadays, Portals are multi-channel applications that enable the creation, sharing and distribution of personalized content, as well as access to social networking and self-service capabilities. Web 2.0 and social technologies have already transformed the ways customers, employees, partners, and suppliers communicate and stay informed. The new release of Oracle WebCenter Portal makes it easier and faster for business users to create intuitive portals with integrated application content Streamlining development with an integrated set of tools for web and mobile. Providing out-of-the box templates for common use cases. Expediting the portal creation experience with new development tools empower business users to build and deploy mobile portals and websites with unprecedented speed—without having to wait for IT which leads to a shorter time to market and reduced costs. Join us to discover a Web platform that allows organizations to quickly and easily create intranets, extranets, composite applications, and self-service portals, providing users a more secure and efficient way of consuming information and interacting with applications, processes, and other users – the latest Oracle WebCenter Portal release 11gR1 PS7. Read more here

    Read the article

  • New Online Learning Library (OLL) content

    - by Irina
    Looking to brush up on OAM or OVD skills? Want some help with OIM? Well, have you checked our Online Learning Library (OLL) recently? OLL is a great way to pickup new skills in short blocks of time, and there is an enormous selection, on a diverse set of products. Every month these trainings get hundreds or thousands of hits. It would be worth your while to spend some time just poking around the nooks and crannies for items that interest you.A smattering of new OBEs and other content have recently become available, and if you haven't already, you might want to check them out: Identity Management: Business Scenarios Business and IT – Collaborative Access Review Sign Off and Closed Loop Identity Certification Oracle Identity Governance: End to End integration From Oracle Identity Manager to a Target Webservice Oracle Identity Manager: Configuring SOA Composite Oracle Identity Manager: Web Services Connector - Overview How to do a basic Oracle Virtual Directory (OVD) Setup? How to setup a simple Oracle Virtual Directory (OVD) Join? Installing Oracle Access Manager: Identity Server and WebPass  Also new is an Oracle University 5-day class you might want to investigate: Oracle Access Manager R2: Administration Essentials An OAM Advanced Administration class is in the works and should be available late summer or fall, so keep your calendar clear! Be sure to let us know in the Comments if there is a training you would find useful. Happy Trails :)

    Read the article

  • Ubuntu 13.10. After login, no desktop displayed. Two Nvidia Graphics Cards, Four Monitors

    - by jmerkow
    I am working on an issue with my Ubuntu 13.10 installation. I am attempting to get 4 monitors up and running but I am having some trouble. So far, I installed and updated to the latest NVIDIA drivers (331.20). Initially X would not start (after installation) so I replaced my xorg.conf with xorg.conf.failsafe. This fixed that problem, but then I tried to enable the other 2 monitors (other video card) and xorg fails to start once again (after I login there is no desktop). I am fairly new to linux but I am not a complete beginner, but I'm not comfortable poking around too much on my own to troubleshoot yet.... lspci -nn | grep VGA: 03:00.0 VGA compatible controller [0300]: NVIDIA Corporation GF110 [GeForce GTX 570 Rev. 2] [10de:1086] (rev a1) 05:00.0 VGA compatible controller [0300]: NVIDIA Corporation GF110 [GeForce GTX 580] [10de:1080] (rev a1) It seems that the nvidia-settings tool does not result in a good xorg.conf file. Here it is: # nvidia-settings: X configuration file generated by nvidia-settings # nvidia-settings: version 331.20 (buildmeister@swio-display-x86-rhel47-05) Wed Oct 30 18:20:32 PDT 2013 Section "ServerLayout" Identifier "Default Layout" Screen 0 "Screen0" 0 0 Screen 1 "Screen1" RightOf "Screen0" InputDevice "Keyboard0" "CoreKeyboard" InputDevice "Mouse0" "CorePointer" Option "Xinerama" "1" EndSection ... Section "Monitor" Identifier "Configured Monitor" EndSection Section "Monitor" Identifier "Monitor0" VendorName "Unknown" ModelName "SHARP HDMI" HorizSync 15.0 - 68.0 VertRefresh 55.0 - 76.0 EndSection Section "Monitor" Identifier "Monitor1" VendorName "Unknown" ModelName "Samsung SyncMaster" HorizSync 0.0 - 0.0 VertRefresh 0.0 EndSection Section "Device" Identifier "Configured Video Device" Driver "vesa" EndSection Section "Device" Identifier "Device0" Driver "nvidia" VendorName "NVIDIA Corporation" BoardName "GeForce GTX 570" BusID "PCI:3:0:0" EndSection Section "Device" Identifier "Device1" Driver "nvidia" VendorName "NVIDIA Corporation" BoardName "GeForce GTX 580" BusID "PCI:5:0:0" EndSection Section "Screen" Identifier "Default Screen" Device "Configured Video Device" Monitor "Configured Monitor" EndSection Section "Screen" Identifier "Screen0" Device "Device0" Monitor "Monitor0" DefaultDepth 24 Option "Stereo" "0" Option "nvidiaXineramaInfoOrder" "DFP-1" Option "metamodes" "HDMI-0: nvidia-auto-select +640+0, DVI-I-3: nvidia-auto-select +0+1080" Option "SLI" "Off" Option "MultiGPU" "Off" Option "BaseMosaic" "off" SubSection "Display" Depth 24 EndSubSection EndSection Section "Screen" Identifier "Screen1" Device "Device1" Monitor "Monitor1" DefaultDepth 24 Option "Stereo" "0" Option "metamodes" "DVI-I-2: nvidia-auto-select +0+0" Option "SLI" "Off" Option "MultiGPU" "Off" Option "BaseMosaic" "off" SubSection "Display" Depth 24 EndSubSection EndSection Section "Extensions" Option "Composite" "Disable" EndSection

    Read the article

  • Associate a texture to an object (from a data-model, not graphical point of view).

    - by Raveline
    I'm writing a roguelike where objects and floor can be made of different materials. For instance, let's say we can have a wooden chair, an iron chair, a golden chair, and so on. I've got an Object class (I know, the name is terrible), which is more or less using a composite pattern, and a Material class. Material have different important properties (noise, color...). For the time being, there are 5 different instances of materials, created at the initialization of the game. How would connect an instance of Object with one of the 5 instances of materials ? I see three simple solutions : Using a pointer. Simple and brutal. Using an integer material-id, then get the materials out of a table when engine manipulates the object for various purposes (display, attack analysis, etc.). Not very beautiful, I think, and not very flexible. Using an integer material-id, then get the materials out of a std::map. A bit more flexible, but still not perfect. Do you see other possibilities ? If not, what would you choose (and why) ? Thanks in advance !

    Read the article

  • Java EE 6????????????????! ??????????????????????J2EE??????????J2EE??????JavaOne Tokyo 2012?????

    - by ??? 03
    Java EE???????Java EE???????????????·????????????Core J2EE Patterns(J2EE????)?????????????????????10???????????????? “????????????”?????????????Java EE??????6?????????WebLogic Server?????????????·???????????????J2EE???????????????????????????????2012?4???????JavaOne Tokyo 2012??????????Java EE 6???J2EE???????????????? ???????????????????????????????J2EE????????????????????Java EE 6??????J2EE???????????????(???)? J2EE???????????3???????????J2EE(J2EE 1.4???Java EE)????????????????????????????????????????J2EE???????????J2EE?????????????????????????????????????????????????????????????????J2EE?????????????·?????????????????????????Core J2EE Patterns??????? ??J2EE?????????10?????????????????????????????Java EE???????????????????????????????????????????????????J2EE?????????????????????/???????????????????????????????J2EE????????????????????3??????????? ?????? ?????????????? ???????????????????1?????????????Java EE 6????????EJB 3.1?JPA(Java Persistence API) 2.0?CDI(Contexts and Dependency Injection) 1.0????????????????????2???????????·????????????????????·?????Java EE????????????????????????3???????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????(??)???????????????????????????????(???) Anemic?“??DOM”??????????????????????????????DOM????????????????????Java EE??????????????????????????????·?????????DOM(Domain Object Model)????????????????????? ?????????·???????????????????????????????????????Anemic(??)???DOM?????????????????????????????????????????????????????????????????????????????????Anemic?DOM??????????????????????????????????????????????????????·????????????????Java EE 6??????????????????????????DOM????????????????????????????????????????????????????????????????·???????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????DOM??????????????????????????????/????????????????????????????????????????????DOM?????????????DOM?Java EE????????????????????????????(???) ???DOM??????????J2EE???Java EE 6??????????????????????????J2EE??????????????????????Anemic???DOM?????????????????????????DOM???????DAO(Data Access Object)?????????????????????????????????DOM???????????????DOM?????????????????????????????????????????????????????????Java EE???Java EE 6??????JPA 2.0????????????DOM??????????????????????????????DOM????????????????????? ???JPA???????????????????????Java EE????J2EE?????????????????Java EE???????????????????????Java EE????????????DOM?????????????????????????????????????????????????????DOM?????????????????????Java EE???????????????????????????(???)????????????3???????????? ?????????????? ????????????? ????? ?????????????????10????????????J2EE?????????????????????????????????????????????????????????????????Session Fac,ade?Application Service?Business Object(Composite Entity)???????????????Transfer Object?Value List Handler?????????????????????????????????????????????????????????????????????Java EE???????????????????????????????????Business Delegate?Service Locator??????????????Java EE??????????????? Session Fac,ade??????????????????????????????????????????????????????????????Session Fac,ade????????Application Service?Business Object????????????????????????????????Java EE 6???????????????(????)??????????????????Session Fac,ade???????????????????·?????????????????????????????????Application Service?????????????????????·????????????????????????Business Object??????????·?????????POJO??????????????????????????????????????????????????????????????????? J2EE??????????????Java EE 6???????????????????????????????????????Java EE???DAO?Domain Store?????????????Service Activator?Web Service Broker???API??????????????????? ????DAO?????·???????????????????????????????????????????1???????????????·???????????????????????????????????????????????????????????????????????(????)?????????????????????????????????DAO??????????EntityManager???????????????????????????????????DAO?????????????????????????????????????????????????????????????Criteria Object????????????????????????DAO??????????????????????DAO?????????????????? ???Service Activator????????????????????????????????????????????????JMS(Java Message Service)?MDB(Message Driven Bean)????????????????Java EE 6??????EJB 3.1????Session Bean?????·????????????@Asynchronous?????????????????????????????????Future?????????????????????????????????????????Java EE 6?????????????????????Service Activator????????????????? ????????·?????????????????????????????????????????????MDB?????????????????????????????????@Asynchronous?????????SLA????????????????????????????????????????????????????????? ??????????????Web???????????????????????????????????????????JSF(Java Server Faces)?????????????????????JSF???????????????????Intercepting Filter??????????????????????????????????JSF???????????? ??????????J2EE???????????????????????????Java EE?????????????????????????????????????Session Fac,ade?Business Object????Application Service??????????????????????????????????????????????Java EE??????????????????????????????????????????????????????????????????????????????????????????????????????????????

    Read the article

  • IE / Facebook Issue : Why Facebook Like box not display in Internet Explorer6 - IE8 ?

    - by Vaibhav Bhalke
    Now My final Application.html file contains are < !DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/DTD/strict.dtd" < html xmlns="http://www.w3.org/1999/xhtml" xmlns:fb="http://www.facebook.com/2008/fbml" < head < meta http-equiv="X-UA-Compatible" content="IE=EmulateIE7" / < /head < body < script type="text/javascript" language="javascript" src="http://static.ak.connect.facebook.com/js/api_lib/v0.4/FeatureLoader.js.php" < /script < script type="text/javascript" FB_RequireFeatures(["Connect"], function(){ var x=1; } ); < /script < script src="http://static.ak.connect.facebook.com/connect.php/en_US" type="text/javascript" < /script < /body < /html My Java code for LIke Box is as follows FBPageFanWidget.java class FBPageFanWidget extends Composite { public FBPageFanWidget() { VerticalPanel mainPanel = new VerticalPanel(); mainPanel .getElement() .setInnerHTML( "< script type='text/javascript' src='http://static.ak.connect.facebook.com/js/api_lib/v0.4/FeatureLoader.js.php/en_US'< /script< script type='text/javascript'FB.init('');< /script< fb:fan profile_id=\"113106068709539\" stream=\"0\" connections=\"10\" logobar=\"0\" width=\"244\" height=\"240\" css='http://127.0.01:8080/webapplicationname/facebook.css?1'< /fb:fan"); initWidget(mainPanel); } } We used proper facebook API_KEY & PAGE_ID It's very important for us to Show Facebook like Box in Our web application Because we have more IE users. If we add FBPageFanWidget.java in our web applicaton then Our Home page is not display in IE because we add Facebook LikeBox so we made changes in Our FBPageFanWidget.java class FBPageFanWidget extends Composite { public FBPageFanWidget() { VerticalPanel mainPanel = new VerticalPanel(); if (!isIE()) { mainPanel.getElement() .setInnerHTML("<script type='text/javascript' src='http://static.ak.connect.facebook.com/js/api_lib/v0.4/FeatureLoader.js.php/en_US'></script><script type='text/javascript'>FB.init('');</script><fb:fan profile_id=\"113106068709539\" stream=\"0\" connections=\"10\" logobar=\"0\" width=\"244\" height=\"240\" css='http://127.0.01:8080/webapplicationname/facebook.css?1'></fb:fan>"); } initWidget(mainPanel); } public native String getUserAgent() /-{ return navigator.userAgent; }-/; private boolean isIE() { return (getUserAgent().indexOf("MSIE") > -1); } } when we did this changes Then Facebook Like Box display in every browser excluding IE6 - IE8 :( and also display Our Home page in IE8 excludeing Facebook Like Box. It means There is probelm in IE ? or what changes i need to do in my html file or java file to show facebook like Box properly with displaying our home page It's very important for us to Show Facebook like Box in Our web application Because we have more IE users. Please Reply ASAP. Hope-for Best Co-operation from your side !!!!

    Read the article

  • IE / Facebook Issue : Why Facebook Like box not display in Internet Explorer 6 - IE8 ?

    - by Vaibhav Bhalke
    IE / Facebook Issue : Why Facebook Like box not display in Internet Explorer6 - IE8 ? Facebook like box display throgh my web application on every browser excluding IE-IE8 Now final Application.html file contains are < !DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/DTD/strict.dtd"><BR> < html xmlns="http://www.w3.org/1999/xhtml" xmlns:fb="http://www.facebook.com/2008/fbml"> <BR>< head> < meta http-equiv="X-UA-Compatible" content="IE=EmulateIE7" /> < /head><BR> < body> < script type="text/javascript" language="javascript" src="http://static.ak.connect.facebook.com/js/api_lib/v0.4/FeatureLoader.js.php"> < /script> <BR> < script type="text/javascript"> FB_RequireFeatures(["Connect"], function(){ var x=1; } ); < /script> <BR> < script src="http://static.ak.connect.facebook.com/connect.php/en_US" type="text/javascript"> < /script> < /body> < /html> My Java code for LIke Box is as follows FBPageFanWidget.java class FBPageFanWidget extends Composite { public FBPageFanWidget() { VerticalPanel mainPanel = new VerticalPanel(); mainPanel .getElement() .setInnerHTML( "< script type='text/javascript' src='http://static.ak.connect.facebook.com/js/api_lib/v0.4/FeatureLoader.js.php/en_US'>< /script>< script type='text/javascript'>FB.init('');< /script>< fb:fan profile_id=\"113106068709539\" stream=\"0\" connections=\"10\" logobar=\"0\" width=\"244\" height=\"240\" css='http://127.0.01:8080/webapplicationname/facebook.css?1'>< /fb:fan>"); initWidget(mainPanel); } } We used proper facebook API_KEY & PAGE_ID It's very important for us to Show Facebook like Box in Our web application Because we have more IE users. If we add FBPageFanWidget.java in our web applicaton then Our Home page is not display in IE because we add Facebook LikeBox so we made changes in Our FBPageFanWidget.java class FBPageFanWidget extends Composite { public FBPageFanWidget() { VerticalPanel mainPanel = new VerticalPanel(); if (!isIE()) { mainPanel.getElement() .setInnerHTML("<script type='text/javascript' src='http://static.ak.connect.facebook.com/js/api_lib/v0.4/FeatureLoader.js.php/en_US'></script><script type='text/javascript'>FB.init('');</script><fb:fan profile_id=\"113106068709539\" stream=\"0\" connections=\"10\" logobar=\"0\" width=\"244\" height=\"240\" css='http://127.0.01:8080/webapplicationname/facebook.css?1'></fb:fan>"); } initWidget(mainPanel); } public native String getUserAgent() /*-{ return navigator.userAgent; }-*/; private boolean isIE() { return (getUserAgent().indexOf("MSIE") > -1); } } when we did this changes Then Facebook Like Box display in every browser excluding IE6 - IE8 :( and also display Our Home page in IE8 excludeing Facebook Like Box. It means There is probelm in IE ? or what changes i need to do in my html file or java file to show facebook like Box properly with displaying our home page It's very important for us to Show Facebook like Box in Our web application Because we have more IE users. Please Reply ASAP. Hope-for Best Co-operation from your side !!!!

    Read the article

  • Problem with evaluating XPath expression in Java

    - by JSteve
    Can somebody help me find the mistake I am doing in evaluating following XPath expression? I want to get all "DataTable" nodes under the node "Model" in my xml through XPath. Here is my XML doc: <?xml version="1.0" encoding="UTF-8"?> <Root> <Application> <Model> <DataSet name="ds" primaryTable="Members" openRows="1"> <DataTable name="Members" openFor="write"> <DataColumn name="id" type="String" mandatory="true" primaryKey="true" valueBy="user"/> <DataColumn name="name" type="String" mandatory="true" valueBy="user"/> <DataColumn name="address" type="String" mandatory="false" valueBy="user"/> <DataColumn name="city" type="String" mandatory="false" valueBy="user"/> <DataColumn name="country" type="String" mandatory="false" valueBy="user"/> </DataTable> </DataSet> </Model> <View> <Composite> <Grid> <Label value="ID:" row="0" column="0" /> <Label value="Name:" row="1" column="0" /> <Label value="Address:" row="2" column="0" /> <Label value="City:" row="3" column="0" /> <Label value="Country:" row="4" column="0" /> <TextField name="txtId" row="0" column="1" /> <TextField name="txtName" row="1" column="1" /> <TextField name="txtAddress" row="2" column="1" /> <TextField name="txtCity" row="3" column="1" /> <TextField name="txtCountry" row="4" column="1" /> </Grid> </Composite> </View> </Application> </Root> Here the Java code to extract required node list: try { DocumentBuilderFactory domFactory = DocumentBuilderFactory.newInstance(); domFactory.setNamespaceAware(true); domFactory.setIgnoringComments(true); domFactory.setIgnoringElementContentWhitespace(true); DocumentBuilder builder = domFactory.newDocumentBuilder(); Document dDoc = builder.parse("D:\TEST\myFile.xml"); XPath xpath = XPathFactory.newInstance().newXPath(); NodeList nl = (NodeList) xpath.evaluate("//Model//DataTable", dDoc, XPathConstants.NODESET); System.out.println(nl.getLength()); }catch (Exception ex) { System.out.println(ex.getMessage()); } There is no problem in loading and parsing xml file and I can see correct nodes in dDoc. Problem is with xpath that returns nothing on evaluating my expression. I tried many other expressions for testing purpose but every time resulting NodeList "nl" does not have any item

    Read the article

  • java.sql.SQLException: No suitable driver found for jdbc:db2:

    - by Celia
    Im using hibernate to connect to my DB2 database. I got java.sql.SQLException: No suitable driver found for jdbc:db2://ldild4268.mycompany.com:55000/myDB. I have db2jcc.jar, db2jcc_javax.jar, db2jcc_license_cu.jar, db2policy.jar, db2ggjava.jar and db2umplugin.jar added into my Java Build Path. I am able to connect to my database through SQuirrel. database.properties: jdbc.driverClassName=com.ibm.db2.jcc.DB2Driver jdbc.url=jdbc:db2://ldild4268.mycompany.com:55000/myDB jdbc.username=uname jdbc.password=pwd datasource.xml: <bean class="org.springframework.beans.factory.config.PropertyPlaceholderConfigurer"> <property name="location"> <value>/WEB-INF/database.properties</value> </property> </bean> <bean id="dataSource" class="org.springframework.jdbc.datasource.DriverManagerDataSource"> <property name="driverClassName" value="${jdbc.driverClassName}" /> <property name="url" value="${jdbc.url}" /> <property name="username" value="${jdbc.username}" /> <property name="password" value="${jdbc.password}" /> </bean> hibernate.xml: <bean id="sessionFactory" class="org.springframework.orm.hibernate3.LocalSessionFactoryBean"> <property name="dataSource"> <ref bean="dataSource" /> </property> <property name="hibernateProperties"> <props> <prop key="hibernate.dialect">org.hibernate.dialect.DB2Dialect</prop> <prop key="hibernate.show_sql">true</prop> </props> </property> <property name="mappingResources"> <list> <value>/myModel.hbm.xml</value> </list> </property> </bean> myModel.hbm.xml: <hibernate-mapping> <class name="com.myCompany.model.myModel" table="table1" catalog=""> <composite-id> <key-property name="key1" column="key1" length="10"/> <key-property name="key2" column="key2" length="19"/> </composite-id> <property name="name" type="string"> <column name="Name" length="50"/> </property> </class> </hibernate-mapping> myModelDaoImpl: @Repository("myModelDao") public class myModelDaoImpl extends PortfolioHibernateDaoSupport implements myModelDao{ private SessionFactory sessionFactory; public List<Date> getKey1() { return this.sessionFactory.getCurrentSession() .createQuery("select pn.key1 from com.myCompany.model.myModel pn") .list(); } public String getPs() { String query = "select pn.name from com.myCompany.model.myModel pn where pn.key1='2011-09-30' and pn.key2=1049764"; List list = getHibernateTemplate().find(query); } } also, the method getKey1 throws nullPointer exception. How can I use createquery instead of hibernateTemplate? Thanks in advance!

    Read the article

  • MVVM/Presentation Model With WinForms

    - by Erik Ashepa
    Hi, I'm currently working on a brownfield application, it's written with winforms, as a preparation to use WPF in a later version, out team plans to at least use the MVVM/Presentation model, and bind it against winforms... I've explored the subject, including the posts in this site (which i love very much), when boiled down, the main advantage of wpf are : binding controls to properties in xaml. binding commands to command objects in the viewmodel. the first feature is easy to implement (in code), or with a generic control binder, which binds all the controls in the form. the second feature is a little harder to implement, but if you inherit from all your controls and add a command property (which is triggered by an internal event such as click), which is binded to a command instance in the ViewModel. The challenges I'm currently aware of are : implementing a commandmanager, (which will trigger the CanInvoke method of the commands as necessery. winforms only supports one level of databinding : datasource, datamember, wpf is much more flexible. am i missing any other major features that winforms lacks in comparison with wpf, when attempting to implement this design pattern? i sure many of you will recommend some sort of MVP pattern, but MVVM/Presentation model is the way to go for me, because I'll want future WPF support. Thanks in advance, Erik.

    Read the article

  • Axis2 embedded in my web app is not working

    - by Shamik
    OKay I lost alsmost the whole day on this. I have a webapp where I would like to add AXIS2 and start working. I added AxisServlets in the web.xml file like - <servlet> <servlet-name>AxisServlet</servlet-name> <display-name>Apache-Axis Servlet</display-name> <servlet-class>org.apache.axis2.transport.http.AxisServlet</servlet-class> <load-on-startup>2</load-on-startup> </servlet> <servlet-mapping> <servlet-name>AxisServlet</servlet-name> <url-pattern>/services/*</url-pattern> </servlet-mapping> I also added Services.xml file like <service name="ReportViewerService"> <description> This is a sample Web Service for illustrating Attachments API of Axis2 </description> <parameter name="ServiceClass">myclass</parameter> <operation name="getReport"> <actionMapping>urn:getReport</actionMapping> <messageReceiver class="org.apache.axis2.rpc.receivers.RPCMessageReceiver"/> </operation> </service> The directory structure is as mentioned here WEB-ING | - conf | |- axis2.xml |-lib | |- all libs |-services |-ReportViewerService | - META-INF |-services.xml |- web.xml The problem is - after all of these, the service endpoint will not come, I can not see the WSDL file http://localhost:8080/BOReportingServer/services/ReportViewerService?wsdl -- this gives an exception like - Throwable occurred: javax.servlet.ServletException: File &quot;/axis2-web/listSingleService.jsp&quot; not found

    Read the article

  • Unknown Entity namespace alias in symfony2

    - by Zoha Ali Khan
    Hey I have two bundles in my symfony2 project. one is Bundle and the other one is PatentBundle. My app/config/route.yml file is MunichInnovationGroupPatentBundle: resource: "@MunichInnovationGroupPatentBundle/Controller/" type: annotation prefix: / defaults: { _controller: "MunichInnovationGroupPatentBundle:Default:index" } MunichInnovationGroupBundle: resource: "@MunichInnovationGroupBundle/Controller/" type: annotation prefix: /v1 defaults: { _controller: "MunichInnovationGroupBundle:Patent:index" } login_check: pattern: /login_check logout: pattern: /logout inside my controller i have <?php namespace MunichInnovationGroup\PatentBundle\Controller; use Symfony\Component\HttpFoundation\Response; use Symfony\Component\HttpFoundation\Request; use JMS\SecurityExtraPatentBundle\Annotation\Secure; use Symfony\Component\Security\Core\Exception\AccessDeniedException; use Symfony\Bundle\FrameworkBundle\Controller\Controller; use Sensio\Bundle\FrameworkExtraBundle\Configuration\Method; use Sensio\Bundle\FrameworkExtraBundle\Configuration\Route; use Sensio\Bundle\FrameworkExtraBundle\Configuration\Template; use Symfony\Component\Security\Core\SecurityContext; use MunichInnovationGroup\PatentBundle\Entity\Log; use MunichInnovationGroup\PatentBundle\Entity\UserPatent; use MunichInnovationGroup\PatentBundle\Entity\PmPortfolios; use MunichInnovationGroup\PatentBundle\Entity\UmUsers; use MunichInnovationGroup\PatentBundle\Entity\PmPatentgroups; use MunichInnovationGroup\PatentBundle\Form\PortfolioType; use MunichInnovationGroup\PatentBundle\Util\SecurityHelper; use Exception; /** * Portfolio controller. * @Route("/portfolio") */ class PortfolioController extends Controller { /** * Index action. * * @Route("/", name="v2_pm_portfolio") * @Template("MunichInnovationGroupPatentBundle:Portfolio:index.html.twig") */ public function indexAction(Request $request) { $portfolios = $this->getDoctrine() ->getRepository('MunichInnovationGroupPatentBundle:PmPortfolios') ->findBy(array('user' => '$user_id')); // rest of the method } when i try to load localhost/web/app_dev.php/portfolio It says Unknown Entity namespace alias 'MunichInnovationGroupPatentBundle'. I am unable to figure out this error please help me if anyone has any idea I googled it a lot :( Thanks in advance 500 Internal Server Error - ORMException

    Read the article

  • MVC: Nested Views, and Controllers (for a website)

    - by incrediman
    I'm doing a PHP website using the MVC pattern. I am not using a framework as the site is fairly simple and I feel that this will give me a good opportunity to learn about the pattern directly. I have a couple questions. Question 1: How should I organize my views? I'm thinking of having a Page view which will have the header and footer, and which will allow for a Content view to be nested between them. Question 2: If I have 5 Content pages, should I make 5 different views that can be used as the content that is nested within the Page view? Or, should I make them all extend an abstract view called AbstractContent? Question 3: What about controllers? I think there should be one main controller at least. But then where does the request go from there? To another controller? Or should I just call the Page view and leave it at that? I thought that controllers were supposed to handle input, possibly modify a model, and select a view. But what if one of the views nested within the view that a controller calls requires additional input to be parsed? Question 4: Are controllers allowed to pass parameters into the view? Or should the controller simply modify the model, which will then affect the view? Or is the model only for DB access and other such things?

    Read the article

  • Code Golf: Code 39 Bar Code

    - by gwell
    The challenge The shortest code by character count to draw an ASCII representation of a Code 39 bar code. Wikipedia article about Code 39: http://en.wikipedia.org/wiki/Code_39 Input The input will be a string of legal characters for Code 39 bar codes. This means 43 characters are valid: 0-9 A-Z (space) and -.$/+%. The * character will not appear in the input as it is used as the start and stop characters. Output Each character encoded in Code 39 bar codes have nine elements, five bars and four spaces. Bars will be represented with # characters, and spaces will be represented with the space character. Three of the nine elements will be wide. The narrow elements will be one character wide, and the wide elements will be three characters wide. A inter-character space of a single space should be added between each character pattern. The pattern should be repeated so that the height of the bar code is eight characters high. The start/stop character * (bWbwBwBwb) would be represented like this: # # ### ### # # # ### ### # # # ### ### # # # ### ### # # # ### ### # # # ### ### # # # ### ### # # # ### ### # ^ ^ ^^ ^ ^ ^ ^^^ | | || | | | ||| narrow bar -+ | || | | | ||| wide space ---+ || | | | ||| narrow bar -----+| | | | ||| narrow space ------+ | | | ||| wide bar --------+ | | ||| narrow space ----------+ | ||| wide bar ------------+ ||| narrow space --------------+|| narrow bar ---------------+| inter-character space ----------------+ The start and stop character * will need to be output at the start and end of the bar code. No quiet space will need to be included before or after the bar code. No check digit will need to be calculated. Full ASCII Code39 encoding is not required, just the standard 43 characters. No text needs to be printed below the ASCII bar code representation to identify the output contents. The character # can be replaced with another character of higher density if wanted. Using the full block character U+2588, would allow the bar code to actually scan when printed. Test cases Input: ABC Output: # # ### ### # ### # # # ### # ### # # ### ### ### # # # # # ### ### # # # ### ### # ### # # # ### # ### # # ### ### ### # # # # # ### ### # # # ### ### # ### # # # ### # ### # # ### ### ### # # # # # ### ### # # # ### ### # ### # # # ### # ### # # ### ### ### # # # # # ### ### # # # ### ### # ### # # # ### # ### # # ### ### ### # # # # # ### ### # # # ### ### # ### # # # ### # ### # # ### ### ### # # # # # ### ### # # # ### ### # ### # # # ### # ### # # ### ### ### # # # # # ### ### # # # ### ### # ### # # # ### # ### # # ### ### ### # # # # # ### ### # Input: 1/3 Output: # # ### ### # ### # # # ### # # # # # ### ### # # # # # ### ### # # # ### ### # ### # # # ### # # # # # ### ### # # # # # ### ### # # # ### ### # ### # # # ### # # # # # ### ### # # # # # ### ### # # # ### ### # ### # # # ### # # # # # ### ### # # # # # ### ### # # # ### ### # ### # # # ### # # # # # ### ### # # # # # ### ### # # # ### ### # ### # # # ### # # # # # ### ### # # # # # ### ### # # # ### ### # ### # # # ### # # # # # ### ### # # # # # ### ### # # # ### ### # ### # # # ### # # # # # ### ### # # # # # ### ### # Input: - $ (minus space dollar) Output: # # ### ### # # # # ### ### # ### # ### # # # # # # # # ### ### # # # ### ### # # # # ### ### # ### # ### # # # # # # # # ### ### # # # ### ### # # # # ### ### # ### # ### # # # # # # # # ### ### # # # ### ### # # # # ### ### # ### # ### # # # # # # # # ### ### # # # ### ### # # # # ### ### # ### # ### # # # # # # # # ### ### # # # ### ### # # # # ### ### # ### # ### # # # # # # # # ### ### # # # ### ### # # # # ### ### # ### # ### # # # # # # # # ### ### # # # ### ### # # # # ### ### # ### # ### # # # # # # # # ### ### # Code count includes input/output (full program).

    Read the article

  • How do I configure CI hudson with PHPunit and how do I run phpunit using hudson?

    - by Vinesh
    Hi, I am getting following error mentioned below. Help is much needed for this... kindly go through the errors. Started by an SCM change Updating https://suppliesguys.unfuddle.com/svn/suppliesguys_frontend2/Frontend-Texity/src U sites\all\modules\print\print_pdf\print_pdf.pages.inc At revision 1134 [workspace] $ sh -xe C:\WINDOWS\TEMP\hudson6292587174545072503.sh The system cannot find the file specified FATAL: command execution failed java.io.IOException: Cannot run program "sh" (in directory "E:\Projects\Hudson.hudson\jobs\TSG\workspace"): CreateProcess error=2, The system cannot find the file specified at java.lang.ProcessBuilder.start(Unknown Source) at hudson.Proc$LocalProc.(Proc.java:149) at hudson.Proc$LocalProc.(Proc.java:121) at hudson.Launcher$LocalLauncher.launch(Launcher.java:636) at hudson.Launcher$ProcStarter.start(Launcher.java:271) at hudson.Launcher$ProcStarter.join(Launcher.java:278) at hudson.tasks.CommandInterpreter.perform(CommandInterpreter.java:83) at hudson.tasks.CommandInterpreter.perform(CommandInterpreter.java:58) at hudson.tasks.BuildStepMonitor$1.perform(BuildStepMonitor.java:19) at hudson.model.AbstractBuild$AbstractRunner.perform(AbstractBuild.java:584) at hudson.model.Build$RunnerImpl.build(Build.java:174) at hudson.model.Build$RunnerImpl.doRun(Build.java:138) at hudson.model.AbstractBuild$AbstractRunner.run(AbstractBuild.java:416) at hudson.model.Run.run(Run.java:1244) at hudson.model.FreeStyleBuild.run(FreeStyleBuild.java:46) at hudson.model.ResourceController.execute(ResourceController.java:88) at hudson.model.Executor.run(Executor.java:122) Caused by: java.io.IOException: CreateProcess error=2, The system cannot find the file specified at java.lang.ProcessImpl.create(Native Method) at java.lang.ProcessImpl.(Unknown Source) at java.lang.ProcessImpl.start(Unknown Source) ... 17 more Publishing Javadoc Publishing Clover coverage report... No Clover report will be published due to a Build Failure [xUnit] Starting to record. [xUnit] [PHPUnit] - Use the embedded style sheet. [xUnit] [ERROR] - No test report file(s) were found with the pattern 'build/logs/phpunit.xml' relative to 'E:\Projects\Hudson.hudson\jobs\TSG\workspace' for the testing framework 'PHPUnit'. Did you enter a pattern relative to the correct directory? Did you generate the result report(s) for 'PHPUnit'? [xUnit] Stopping recording. Finished: FAILURE

    Read the article

  • log4j:WARN No appenders could be found for logger in web.xml

    - by cometta
    I already put the log4jConfigLocation in web.xml, but still, i get warning log4j:WARN No appenders could be found for logger (org.springframework.web.context.ContextLoader). log4j:WARN Please initialize the log4j system properly. what did i missed out? <context-param> <param-name>contextConfigLocation</param-name> <param-value> /WEB-INF/applicationContext.xml </param-value> </context-param> <context-param> <param-name>log4jConfigLocation</param-name> <param-value>/WEB-INF/classes/log4j.properties</param-value> </context-param> <listener> <listener-class>org.springframework.web.util.Log4jConfigListener</listener-class> </listener> <listener> <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class> </listener> <servlet> <servlet-name>suara2</servlet-name> <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class> </servlet> <servlet-mapping> <servlet-name>suara2</servlet-name> <url-pattern>/*</url-pattern> </servlet-mapping>

    Read the article

  • Configuring xUnit test output in Hudson

    - by graham.reeds
    I have a simple PoC project in Hudson. The PoC has unit tests written via UnitTest++ and outputs the results as XML for consumption by xUnit to munge into jUnit format. Here are the salient relevant I have my project configured to use MSBuild to build the 2008 solution. The project contains both the dll it is to build and the unit tests which are run as a post-build step. My workspace in Hudson is set to c:\develop\money (Money is the name of the project) and in the Hudson console I can see the workspace folders, the solution file and output folders (/bin, /doc, etc). The test console app outputs its file 'money_unit_tests.xml' to the folder 'reports' (making c:\develop\money\reports). I've restarted Hudson since installing xUnit and setting the workspace. However when I start Hudson building I am given the following message: [xUnit] Starting to record. [xUnit] [UnitTest] - Use the embedded style sheet. [xUnit] [ERROR] - No test report file(s) were found with the pattern 'reports/money_unit_tests.xml' relative to 'C:\.hudson\jobs\Money\workspace' for the testing framework 'UnitTest'. Did you enter a pattern relative to the correct directory? Did you generate the result report(s) for 'UnitTest'? [xUnit] Stopping recording. Finished: FAILURE Why does Hudson seem to think the workspace is in C:.hudson... and not C:\Develop...? What can I do change it? If I can't change it, what can I do to mitigate these changes? (I don't exactly want to hardcode the output for the xml to C:.hudson...)

    Read the article

  • How to let Tomcat publish WSDL for the WS it provides (CXF 2.2, Spring 3, Tomcat6)

    - by Zwei Steinen
    Hi, I am trying to implement a simple web service provider using Tomcat6, CXF 2.2, Spring 3, and actually the service itself runs fine (I can call web methods using the original WSDL and SoapUI). However, Tomcat returns a blank page on "?wsdl" requests. Also, when I try to manipulate the (would-be) published WSDL by adding a publishedEndpointURL property to the jaxws:endpoint element, Tomcat will issue a XML parse exception (something like property publishedEndpointURL is not allowed in element jaxws:endpoint) <jaxws:endpoint id="service" implementor="org.sample.ServiceImpl" implementorClass="org.sample.ServiceImpl" address="/service" publishedEndpointURL="http://localhost:8080/MyService/service"> I used "contract first" style. EDIT: What I did so far: Setup tomcat6 with Spring3 Generate CXF implementation class by using maven Provide web.xml (only relevant part shown) <listener> <listener-class>org.springframework.web.context.ContextLoaderListener </listener-class> </listener> <servlet> <servlet-name>cxf</servlet-name> <servlet-class> org.apache.cxf.transport.servlet.CXFServlet </servlet-class> <load-on-startup>1</load-on-startup> </servlet> <servlet-mapping> <servlet-name>cxf</servlet-name> <url-pattern>/*</url-pattern> </servlet-mapping> Provide applicationContext.xml (only relevant part is shown) Package generated stuff into war and deploy

    Read the article

  • Is HttpContextWrapper all that....useful?

    - by bakasan
    I've been going through the process of cleaning up our controller code to make each action as testable. Generally speaking, this hasn't been too difficult--where we have opportunity to use a fixed object, like say FormsAuthentication, we generally introduce some form of wrapper as appropriate and be on our merry way. For reasons not particularly germaine to this conversation, when it came to dealing with usage of HttpContext, we decided to use the newly created HttpContextWrapper class rather than inventing something homegrown. One thing we did introduce was the ability to swap in a HttpContextWrapper (like say, for unit testing). This was wholly inspired by the way Oren Eini handles unit testing with DateTimes (see article, a pattern we also use) public static class FooHttpContext { public static Func<HttpContextWrapper> Current = () => new HttpContextWrapper(HttpContext.Current); public static void Reset() { Current = () => new HttpContextWrapper(HttpContext.Current); } } Nothing particularly fancy. And it works just fine in our controller code. The kicker came when we go to write unit tests. We're using Moq as our mocking framework, but alas var context = new Mock<HttpContextWrapper>() breaks since HttpContextWrapper doesn't have a parameterless ctor. And what does it take as a ctor parameter? A HttpContext object. So I find myself in a catch 22. I'm using the prescribed way to decouple HttpContext--but I can't mock a value in because the original HttpContext object was sealed and therefore difficult to test. I can map HttpContextBase, which both derive from--but that doesn't really get me what I'm after. Am I just missing the point somewhere with regard to HttpContextWrapper? I can find ways to work around the issue, but we are kind of fond of remaining consistent in decoupling using the Function delegate pattern--but it seems like we're not fully grokking intent of the wrapper.

    Read the article

  • Websphere 7 simple realm (like tomcat-users.xml)

    - by Heavy Bytes
    I am trying to port a J2EE app from Tomcat to Websphere and I'm not too familiar with Websphere. The only problem I am having is authorization (I use basic-authentication in my web.xml). In Tomcat I use the tomcat-users.xml file to define my users/passwords and to what roles they belong. How do I do this "simply" in Websphere? When deploying the EAR to Websphere it also asks me to map my role from web.xml to a user or group. Do I have to set up some sort of realm? Custom user registry? Thanks. UPDATE: I configured a Standalone custom registry, however I can't get a log-in prompt for username/password. It works just fine in Tomcat, and it doesn't in Websphere. Code from web.xml <security-constraint> <web-resource-collection> <web-resource-name>basic-auth security</web-resource-name> <url-pattern>/*</url-pattern> </web-resource-collection> <auth-constraint> <role-name>HELLO_USER</role-name> </auth-constraint> <user-data-constraint>NONE</user-data-constraint> </security-constraint> <login-config> <auth-method>BASIC</auth-method> </login-config> <security-role> <role-name>HELLO_USER</role-name> </security-role>

    Read the article

  • jax-ws on glassfish3 init method

    - by Alex
    Hi all, I've created simple jax-ws (anotated Java 6 class to web service) service and deploied it on glassfish v3. The web.xml <?xml version="1.0" encoding="ISO-8859-1"?> <web-app> <servlet> <servlet-name>MyServiceName</servlet-name> <description>Blablabla</description> <servlet-class>com.foo-bar.somepackage.TheService</servlet-class> <load-on-startup>1</load-on-startup> </servlet> <servlet-mapping> <servlet-name>MyServiceName</servlet-name> <url-pattern>/MyServiceName</url-pattern> </servlet-mapping> <session-config> <session-timeout>30</session-timeout> </session-config> </web-app> There is no sun-jaxws.xml in the war. The service works fine but I have 2 issues: I'm using apache common configuration package to read my configuration, so i have init function that calls configuration stuff. 1. How can I configure init method for jaxws service (like i can do for the servlets for example) 2. the load on startup parameter is not affecting the service, I see that for every request init function called again (and c-tor). How can I set scope for my service? Thanks a lot,

    Read the article

  • Atomic UPSERT in SQL Server 2005

    - by rabidpebble
    What is the correct pattern for doing an atomic "UPSERT" (UPDATE where exists, INSERT otherwise) in SQL Server 2005? I see a lot of code on SO (e.g. see http://stackoverflow.com/questions/639854/tsql-check-if-a-row-exists-otherwise-insert) with the following two-part pattern: UPDATE ... FROM ... WHERE <condition> -- race condition risk here IF @@ROWCOUNT = 0 INSERT ... or IF (SELECT COUNT(*) FROM ... WHERE <condition>) = 0 -- race condition risk here INSERT ... ELSE UPDATE ... where will be an evaluation of natural keys. None of the above approaches seem to deal well with concurrency. If I cannot have two rows with the same natural key, it seems like all of the above risk inserting rows with the same natural keys in race condition scenarios. I have been using the following approach but I'm surprised not to see it anywhere in people's responses so I'm wondering what is wrong with it: INSERT INTO <table> SELECT <natural keys>, <other stuff...> FROM <table> WHERE NOT EXISTS -- race condition risk here? ( SELECT 1 FROM <table> WHERE <natural keys> ) UPDATE ... WHERE <natural keys> (Note: I'm assuming that rows will not be deleted from this table. Although it would be nice to discuss how to handle the case where they can be deleted -- are transactions the only option? Which level of isolation?) Is this atomic? I can't locate where this would be documented in SQL Server documentation.

    Read the article

  • Improving long-polling Ajax performance

    - by Bears will eat you
    I'm writing a webapp (Firefox-compatible only) which uses long polling (via jQuery's ajax abilities) to send more-or-less constant updates from the server to the client. I'm concerned about the effects of leaving this running for long periods of time, say, all day or overnight. The basic code skeleton is this: function processResults(xml) { // do stuff with the xml from the server } function fetch() { setTimeout(function () { $.ajax({ type: 'GET', url: 'foo/bar/baz', dataType: 'xml', success: function (xml) { processResults(xml); fetch(); }, error: function (xhr, type, exception) { if (xhr.status === 0) { console.log('XMLHttpRequest cancelled'); } else { console.debug(xhr); fetch(); } } }); }, 500); } (The half-second "sleep" is so that the client doesn't hammer the server if the updates are coming back to the client quickly - which they usually are.) After leaving this running overnight, it tends to make Firefox crawl. I'd been thinking that this could be partially caused by a large stack depth since I've basically written an infinitely recursive function. However, if I use Firebug and throw a breakpoint into fetch, it looks like this is not the case. The stack that Firebug shows me is only about 4 or 5 frames deep, even after an hour. One of the solutions I'm considering is changing my recursive function to an iterative one, but I can't figure out how I would insert the delay in between Ajax requests without spinning. I've looked at the JS 1.7 "yield" keyword but I can't quite wrap my head around it, to figure out if it's what I need here. Is the best solution just to do a hard refresh on the page periodically, say, once every hour? Is there a better/leaner long-polling design pattern that won't put a hurt on the browser even after running for 8 or 12 hours? Or should I just skip the long polling altogether and use a different "constant update" pattern since I usually know how frequently the server will have a response for me?

    Read the article

< Previous Page | 108 109 110 111 112 113 114 115 116 117 118 119  | Next Page >