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  • Choosing an application server for web application development

    - by harigm
    My manager has asked me to suggest an application server for web application development work. What are the factors that needs to be considered before we select any application server for web application development in Java J2EE development? If I select one now and IN future and I want to change to some other application server, is that minimum effort to change?

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  • Manage multiple UDP calls

    - by rayman
    Hi all, I would like to have an advice for this issue: I am using Jbos 5.1.0, EJB3.0 I have system, which sending requests via UDP'S to remote modems, and suppose to wait for an answer from the target modem. the remote modems support only UDP calls, therefor I o design asynchronous mechanism. (also coz I want to request X modems parallel) this is what I try to do: all calls are retrieved from Data Base, then each call will be added as a message to JMS QUE. let's say i will set X MDB'S on that que, so I can work asynchronous. now each MDB will send UDP request to the IP-address(remote modem) which will be parsed from the que message. so basicly each MDB, which takes a message is sending a udp request to the remote modem and [b]waiting [/b]for an answer from that modem. [u]now here is the BUG:[/u] could happen a scenario where MDB will get an answer, but not from the right modem( which it requested in first place). that bad scenario cause two wrong things: a. the sender which sent the message will wait forever since the message never returned to him(it got accepted by another MDB). b. the MDB which received the message is not the right one, and probablly if it was on a "listener" mode, then it supposed to wait for an answer from diffrent sender.(else it wouldnt get any messages) so ofcourse I can handle everything with a RETRY mechanisem. so both mdb's(the one who got message from the wrong sender, and the one who never got the answer) will try again, to do thire operation with a hope that next time it will success. This is the mechanism, mybe you could tell me if there is any design pattren, or any other effective solution for this problem? Thanks, ray.

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  • Referencing CDI producer method result in h:selectOneMenu

    - by user953217
    I have a named session scoped bean CustomerRegistration which has a named producer method getNewCustomer which returns a Customer object. There is also CustomerListProducer class which produces all customers as list from the database. On the selectCustomer.xhtml page the user is then able to select one of the customers and submit the selection to the application which then simply prints out the last name of the selected customer. Now this only works when I reference the selected customer on the facelets page via #{customerRegistration.newCustomer}. When I simply use #{newCustomer} then the output for the last name is null whenever I submit the form. What's going on here? Is this the expected behavior as according to chapter 7.1 Restriction upon bean instantion of JSR-299 spec? It says: ... However, if the application directly instantiates a bean class, instead of letting the container perform instantiation, the resulting instance is not managed by the container and is not a contextual instance as defined by Section 6.5.2, “Contextual instance of a bean”. Furthermore, the capabilities listed in Section 2.1, “Functionality provided by the container to the bean” will not be available to that particular instance. In a deployed application, it is the container that is responsible for instantiating beans and initializing their dependencies. ... Here's the code: Customer.java: @javax.persistence.Entity @Veto public class Customer implements Serializable, Entity { private static final long serialVersionUID = 122193054725297662L; @Column(name = "first_name") private String firstName; @Column(name = "last_name") private String lastName; @Id @GeneratedValue() private Long id; public String getFirstName() { return firstName; } public void setFirstName(String firstName) { this.firstName = firstName; } public String getLastName() { return lastName; } public void setLastName(String lastName) { this.lastName = lastName; } @Override public String toString() { return firstName + ", " + lastName; } @Override public Long getId() { return this.id; } } CustomerListProducer.java: @SessionScoped public class CustomerListProducer implements Serializable { @Inject private EntityManager em; private List<Customer> customers; @Inject @Category("helloworld_as7") Logger log; // @Named provides access the return value via the EL variable name // "members" in the UI (e.g., // Facelets or JSP view) @Produces @Named public List<Customer> getCustomers() { return customers; } public void onCustomerListChanged( @Observes(notifyObserver = Reception.IF_EXISTS) final Customer customer) { // retrieveAllCustomersOrderedByName(); log.info(customer.toString()); } @PostConstruct public void retrieveAllCustomersOrderedByName() { CriteriaBuilder cb = em.getCriteriaBuilder(); CriteriaQuery<Customer> criteria = cb.createQuery(Customer.class); Root<Customer> customer = criteria.from(Customer.class); // Swap criteria statements if you would like to try out type-safe // criteria queries, a new // feature in JPA 2.0 // criteria.select(member).orderBy(cb.asc(member.get(Member_.name))); criteria.select(customer).orderBy(cb.asc(customer.get("lastName"))); customers = em.createQuery(criteria).getResultList(); } } CustomerRegistration.java: @Named @SessionScoped public class CustomerRegistration implements Serializable { @Inject @Category("helloworld_as7") private Logger log; private Customer newCustomer; @Produces @Named public Customer getNewCustomer() { return newCustomer; } public void selected() { log.info("Customer " + newCustomer.getLastName() + " ausgewählt."); } @PostConstruct public void initNewCustomer() { newCustomer = new Customer(); } public void setNewCustomer(Customer newCustomer) { this.newCustomer = newCustomer; } } not working selectCustomer.xhtml: <?xml version="1.0" encoding="UTF-8"?> <!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" xmlns:f="http://java.sun.com/jsf/core" xmlns:h="http://java.sun.com/jsf/html" xmlns:ui="http://java.sun.com/jsf/facelets"> <h:head> <title>Auswahl</title> </h:head> <h:body> <h:form> <h:selectOneMenu value="#{newCustomer}" converter="customerConverter"> <f:selectItems value="#{customers}" var="current" itemLabel="#{current.firstName}, #{current.lastName}" /> </h:selectOneMenu> <h:panelGroup id="auswahl"> <h:outputText value="#{newCustomer.lastName}" /> </h:panelGroup> <h:commandButton value="Klick" action="#{customerRegistration.selected}" /> </h:form> </h:body> </html> working selectCustomer.xhtml: <?xml version="1.0" encoding="UTF-8"?> <!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" xmlns:f="http://java.sun.com/jsf/core" xmlns:h="http://java.sun.com/jsf/html" xmlns:ui="http://java.sun.com/jsf/facelets"> <h:head> <title>Auswahl</title> </h:head> <h:body> <h:form> <h:selectOneMenu value="#{customerRegistration.newCustomer}" converter="customerConverter"> <f:selectItems value="#{customers}" var="current" itemLabel="#{current.firstName}, #{current.lastName}" /> </h:selectOneMenu> <h:panelGroup id="auswahl"> <h:outputText value="#{newCustomer.lastName}" /> </h:panelGroup> <h:commandButton value="Klick" action="#{customerRegistration.selected}" /> </h:form> </h:body> </html> CustomerConverter.java: @SessionScoped @FacesConverter("customerConverter") public class CustomerConverter implements Converter, Serializable { private static final long serialVersionUID = -6093400626095413322L; @Inject EntityManager entityManager; @Override public Object getAsObject(FacesContext context, UIComponent component, String value) { Long id = Long.valueOf(value); return entityManager.find(Customer.class, id); } @Override public String getAsString(FacesContext context, UIComponent component, Object value) { return ((Customer) value).getId().toString(); } }

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  • Is it possible to destroy a CDI scope?

    - by Matt Ball
    I'm working on a Java EE application, primarily JAX-RS with a JSF admin console, that uses CDI/Weld for dependency injection with @ApplicationScoped objects. Minor debugging issues aside, CDI has worked beautifully for this project. Now I need some very coarse-grained control over CDI-injected object lifecycles. I need the ability to: Remove an injected object from the application context, or Destroy/delete/clear/reset/remove the entire application context, or Define my own @ScopeType and implementing Context in which I could provide methods to perform one of the two above tasks. I'm fully aware that this is across, if not against, the grain of CDI and dependency injection in general. I just want to know Is this remotely possible? If yes, what is the easiest/simplest/quickest/foolproofiest way to get the job done?

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  • hibernate not picking sessionFactory

    - by Satya
    My application-context.xml is <?xml version="1.0" encoding="UTF-8"?> <!DOCTYPE beans PUBLIC "-//SPRING//DTD BEAN//EN" "http://www.springframework.org/dtd/spring-beans.dtd"> <beans> <bean id="myDataSource" class="org.apache.commons.dbcp.BasicDataSource" destroy-method="close"> <property name="driverClassName"><value>com.mysql.jdbc.Driver</value></property> <property name="url"><value>jdbc:mysql://localhost:3306/myDB</value></property> <property name="username"><value>myUser</value></property> <property name="password"><value>myUser</value></property> </bean> <bean id="mySessionFactory" class="org.springframework.orm.hibernate3.LocalSessionFactoryBean"> <property name="mappingResources"> <property name="dataSource"><ref bean="myDataSource"/></property> <list> <value>com/x/model/config/hibernate/user.hbm.xml</value> </list> </property> <property name="hibernateProperties" > <value> hibernate.dialect=org.hibernate.dialect.MySQLDialect </value> </property> </bean> <bean id="userdao" class="com.x.y.z.UserDao"> <property name="sessionFactory"><ref bean="mySessionFactory"/></property> </bean> </beans> user.hbm.xml is <?xml version="1.0" encoding="UTF-8"?> <!DOCTYPE hibernate-mapping PUBLIC "-//Hibernate/Hibernate Mapping DTD//EN" "http://hibernate.sourceforge.net/hibernate-mapping-3.0.dtd"> <hibernate-mapping package="com.cpt.model"> <class name="User" table="user"> <id name="userId" column="id"> <generator class="native"/> </id> <property name="firstname" column="firstName" /> <property name="lastName" column="lastName"/> <property name="login" column="login"/> <property name="pass" column="pass"/> <property name="superemail" column="superEmail"/> </class> </hibernate-mapping> and the UserDao is package com.x.y.z; import java.sql.Connection; import java.sql.DriverManager; import java.sql.SQLException; import java.sql.Statement; import org.hibernate.HibernateException; import org.hibernate.Session; import org.hibernate.SessionFactory; import org.hibernate.cfg.Configuration; import org.springframework.beans.factory.annotation.Autowired; import org.springframework.orm.hibernate.support.HibernateDaoSupport; import org.springframework.stereotype.Component; import com.x.model.User; @Component public class UserDao { private SessionFactory sessionFactory; public void addUser(User user) { Session session; try { try { session = getSessionFactory().openSession(); // session = sessionFactory.openSession(); session.save(user); } catch (RuntimeException e) { // TODO Auto-generated catch block e.printStackTrace(); } } catch (HibernateException e) { // TODO Auto-generated catch block System.out.println("printing in the catch"); e.printStackTrace(); } } public SessionFactory getSessionFactory() { System.out.println("returning session factory ::: sessionFactory == null :: "+sessionFactory.openSession()); return sessionFactory; } public void setSessionFactory(SessionFactory sessionFactory) { System.out.println("this is setting session factory" + sessionFactory.getClass()); System.out.println("setting session factory ::: sessionFactory == null :: "+sessionFactory==null); this.sessionFactory = sessionFactory; System.out.println("setting session factory ::: sessionFactory == null :: "+this.sessionFactory.openSession().getClass()); System.out.println(getSessionFactory().openSession().isOpen()); } } However, I keep getting 14:45:09,929 INFO [org.hibernate.impl.SessionFactoryImpl] building session fact ory 14:45:09,933 WARN [net.sf.ehcache.config.Configurator] No configuration found. Configuring ehcache from ehcache-failsafe.xml found in the classpath: vfs:/C:/jb /server/default/deploy/C.war/WEB-INF/lib/ehcache-1.1.jar/ehcache-failsafe.xml 14:45:10,007 INFO [org.hibernate.impl.SessionFactoryObjectFactory] Not binding factory to JNDI, no JNDI name configured 14:45:10,008 INFO [org.hibernate.impl.SessionFactoryImpl] Checking 0 named quer ies 14:45:10,017 INFO [STDOUT] this is setting session factoryclass $Proxy178 14:45:10,017 INFO [STDOUT] false 14:45:10,019 INFO [STDOUT] setting session factory ::: sessionFactory == null : : class org.hibernate.impl.SessionImpl 14:45:10,020 INFO [STDOUT] returning session factory ::: sessionFactory == null :: org.hibernate.impl.SessionImpl(PersistentContext[entitiesByKey={}] ActionQue ue[insertions=[] updates=[] deletions=[] collectionCreations=[] collectionRemova ls=[] collectionUpdates=[]]) It is giving sessionFactory null . Any Idea where am I failing ? Thanks

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  • sequence generators are getting ignored

    - by luvfort
    I'm getting the following error while saving a object. However similar configuration is working for other model objects in my projects. Any help would be greatly appreciated. @Entity @Table(name = "ENROLLMENT_GROUP_MEMBERSHIPS", schema = "LEAD_ROUTING") public class EnrollmentGroupMembership implements Serializable, Comparable,Auditable { @javax.persistence.SequenceGenerator(name = "enrollmentGroupMemID", sequenceName = "S_ENROLLMENT_GROUP_MEMBERSHIPS") @Id @GeneratedValue(strategy = GenerationType.AUTO, generator = "enrollmentGroupMemID") @Column(name = "ID") private Long id; @ManyToOne() @JoinColumn(name = "TIER_WEIGHT_OID", referencedColumnName = "OID", updatable = false, insertable = false) private TierWeight tierWeight; public EnrollmentGroupMembership() { } } Code: @Entity @Table(name = "TIER_WEIGHT", schema = "LEAD_ROUTING") public class TierWeight implements Serializable, Auditable { @SequenceGenerator(name = "tierSequence",sequenceName = "S_TIER_WEIGHT") @Column(name = "OID") @Id @GeneratedValue(strategy = GenerationType.AUTO, generator = "tierSequence") private Long id; @OneToMany @JoinColumn(name = "TIER_WEIGHT_OID", referencedColumnName = "OID") private Set<EnrollmentGroupMembership> memberships; public TierWeight() { } } The logic layer's code is @Override public void createTier(String tierName, float weight) { TierWeight tier = new TierWeight(); tier.setWeight(weight); tier.setTier(tierName); tierWeightDAO.create(tier); } Similar Many-one configuration is working through out the project. I don't know why this one instance is failing. Any help would be greatly appreciated. The following is the error that I'm getting Caused by: org.hibernate.id.IdentifierGenerationException: ids for this class must be manually assigned before calling save(): edu.apollogrp.d2ec.model.TierWeight at org.hibernate.id.Assigned.generate(Assigned.java:3 3) at org.hibernate.event.def.AbstractSaveEventListener. saveWithGeneratedId(AbstractSaveEventListener.java :99) The log file is telling that the sequence generator tierSequence is not getting created. However other sequence generators are getting created. 2010-06-03 11:24:51,834 DEBUG [org.hibernate.cfg.AnnotationBinder:] Processing annotations of edu.apollogrp.d2ec.model.TierWeight.dateCreated 2010-06-03 11:24:51,834 DEBUG [org.hibernate.cfg.AnnotationBinder:] Processing annotations of edu.apollogrp.d2ec.model.TierWeight.dateCreated 2010-06-03 11:24:51,834 DEBUG [org.hibernate.cfg.Ejb3Column:] Binding column DATE_CREATED unique false ....................................... ....................................... 2010-06-03 11:24:51,756 DEBUG [org.hibernate.cfg.AnnotationBinder:] Processing annotations of edu.apollogrp.d2ec.model.CounselorAvailability.id 2010-06-03 11:24:51,756 DEBUG [org.hibernate.cfg.Ejb3Column:] Binding column OID unique false 2010-06-03 11:24:51,756 DEBUG [org.hibernate.cfg.Ejb3Column:] Binding column OID unique false 2010-06-03 11:24:51,756 DEBUG [org.hibernate.cfg.AnnotationBinder:] id is an id 2010-06-03 11:24:51,756 DEBUG [org.hibernate.cfg.AnnotationBinder:] id is an id 2010-06-03 11:24:51,756 DEBUG [org.hibernate.cfg.AnnotationBinder:] Add sequence generator with name: counselorAvailabilityID 2010-06-03 11:24:51,756 DEBUG [org.hibernate.cfg.AnnotationBinder:] Add sequence generator with name: counselorAvailabilityID While debugging, I see that the org.hibernate.impl.SessionFactoryImpl is returning the "Assigned" identifierGenerator. This is horrible. I've specified the identifierGenerator as "Auto". Please see the above code. As a sidenote, I was trying to debug and seeing how the objects are getting retrieved from the database. Looks like the enrollmentgroupmembership records have the tierweight value populated. However if I look at the tierweight object, it doesn't have the enrollmentgroupmembership records. I'm puzzled. I think these two problems must be related. Maddy.

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  • How does one programmatically create a topic w/ hornet q ?

    - by mP
    I have been looking at the org.hornetq.core.server package which seems to have the most interesting low level APIS relating to managing the server. The server session has a few methods labelled something Queue but none include Topic ... ServerSession void createQueue(SimpleString address, SimpleString name, SimpleString filterString, boolean temporary, boolean durable) throws Exception; void deleteQueue(SimpleString name) throws Exception interface QueueFactory Queue createQueue(long persistenceID, final SimpleString address, SimpleString name, Filter filter, boolean durable, boolean temporary); However i could not figure out how to create a topic. Am i missing something is a JMS topic implemented as a queue ?

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  • RichFaces Toolbargroup centering a group

    - by Jeremiah
    Hello there I am trying use a toolbar so that it has three parts part A is aligned left part B is aligned Center part C is aligned right both the right and left i can use the location attribute ... but since there is no center attribute i am not able to center part b. I can use a rich:spacer but this makes the toolbar rigid and when the screen size is reduced the toolbar gets overlapped ... is there any i can center this without the toolbar getting over lapped. Any suggestions or workarounds is welcome cheers

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  • Using Nuxeo, how do I lock down a page so that it redirects to the login page if the user is unauthe

    - by Aaron Chambers
    I have been put on to a project using Nuxeo, late in it's lifecycle and need to change a few things before it goes live. I am having trouble finding out where I need to look to lock down a Nuxeo based application so that a user is redirected to the login page if they are unauthorised and access a restricted page. Can someone please shoot my some direction on where this sort of logic is kept or defined?

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  • Unique constraint not created in JPA

    - by homaxto
    I have created the following entity bean, and specified two columns as being unique. Now my problem is that the table is created without the unique constraint, and no errors in the log. Does anyone have an idea? @Entity @Table(name = "cm_blockList", uniqueConstraints = @UniqueConstraint(columnNames = {"terminal", "blockType"})) public class BlockList { @Id @GeneratedValue(strategy = GenerationType.AUTO) private int id; @ManyToOne(cascade = CascadeType.PERSIST) @JoinColumn(name="terminal") private Terminal terminal; @Enumerated(EnumType.STRING) private BlockType blockType; private String regEx; }

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  • JSR-299 (CDI) configuration at runtime

    - by nsn
    I need to configure different @Alternatives, @Decorators and @Injectors for different runtime environments (think testing, staging and production servers). Right now I use maven to create three wars, and the only difference between those wars are in the beans.xml files. Is there a better way to do this? I do have @Alternative @Stereotypes for the different environments, but even then I need to alter beans.xml, and they don't work for @Decorators (or do they?) Is it somehow possible to instruct CDI to ignore the values in beans.xml and use a custom configuration source? Because then I could for example read a system property or other environment variable. The application exclusively runs in containers that use Weld, so a weld-specific solution would be ok. I already tried to google this but can't seem to find good search terms, and I asked the Weld-Users-Forums, but to no avail. Someone over there suggested to write my own custom extension, but I can't find any API to actually change the container configuration at runtime. I think it would be possible to have some sort of @ApplicationScoped configuration bean and inject that into all @Decorators which could then decide themselves whether they should be active or not and then in order to configure @Alternatives write @Produces methods for every interface with multiple implementations and inject the config bean there too. But this seems to me like a lot of unnecessary work to essentially duplicate functionality already present in CDI?

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  • bounce multiple servers using ant

    - by Angrezy
    Hi All, This is restart target code which is defined in build.xml target name="restart" propertycopy name="remote.host" from="deploy.${target.env}.host.${remote.id}" propertycopy name="remote.port" from="deploy.${target.env}.port.${remote.id}" sshexec trust="true" host="${remote.host}" port="${remote.port}" username="${scm.user}" keyfile="${scm.user.key}" command="sudo /usr/local/bin/bounce_jboss" target server information is defined in build.properties. The above code is working fine, but the restarting process is very late bcas its stopping-starting server one and later its stopping-starting another server, Is there a way where i can restart both servers parallely with a time frame of 45 seconds.

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  • getResourceAsStream() is always returning null

    - by Andreas Grech
    I have the following structure in a Java Web Application: TheProject -- [Web Pages] -- -- [WEB-INF] -- -- -- abc.txt -- -- index.jsp -- [Source Packages] -- -- [wservices] -- -- -- WS.java In WS.java, I am using the following code in a Web Method: InputStream fstream = this.getClass().getResourceAsStream("abc.txt"); But it is always returning a null. I need to read from that file, and I read that if you put the files in WEB-INF, you can access them with getResourceAsStream, yet the method is always returning a null. Any ideas of what I may be doing wrong? Btw, the strange thing is that this was working, but after I performed a Clean and Build on the Project, it suddenly stopped working :/

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  • Does it mean JVM Suspended?

    - by Joe.wang
    When my application run . I got a message says : Ping: Timed out waiting for signal from JVM. The JVM was launched with debug options so this may be because the JVM is currently suspended by a debugger. Any future timeouts during this JVM invocation will be silently ignored. What does that mean? It seems it will block any web request from outside? because when I upload a file to it, it failed. help me .

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  • Java's getResourceAsStream() is always returning null

    - by Andreas Grech
    I have the following structure in a Java Web Application: TheProject -- [Web Pages] -- -- [WEB-INF] -- -- -- abc.txt -- -- index.jsp -- [Source Packages] -- -- [wservices] -- -- -- WS.java In WS.java, I am using the following code in a Web Method: InputStream fstream = this.getClass().getResourceAsStream("abc.txt"); But it is always returning a null. I need to read from that file, and I read that if you put the files in WEB-INF, you can access them with getResourceAsStream, yet the method is always returning a null. Any ideas of what I may be doing wrong?

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  • What is "Task" in the output of "apt-cache show package_name"?

    - by vasa1
    When I run apt-cache show inkscape, the bottom of the output has: Description-md5: fed6589659211fb40b80d03dda6e5675 Homepage: http://www.inkscape.org/ Description-md5: fed6589659211fb40b80d03dda6e5675 Bugs: https://bugs.launchpad.net/ubuntu/+filebug Origin: Ubuntu Supported: 9m Task: ubuntu-usb, edubuntu-desktop-gnome, edubuntu-usb, ubuntustudio-video, ubuntustudio-graphics But when I run apt-cache show pdfgrep, the line beginning with Task is absent: Description-md5: 8c8a5397f782d81d957740280eb8f352 Homepage: http://pdfgrep.sourceforge.net/ Description-md5: 8c8a5397f782d81d957740280eb8f352 Bugs: https://bugs.launchpad.net/ubuntu/+filebug Origin: Ubuntu Why is the line beginning with Task present for some packages and not for others?

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  • Rails Counter Cache and its implementation

    - by Ishu
    Hello All, I am trying to get hold of rails counter cache feature but not able to grasp it completely. Let's say that We have 3 models A B C A belongs to B or C depending upon a field key_type and key_id. key_type tells whether A belongs to B or C so if key_type="B" then the record belongs to B otherwise it belongs to C. In my model a.rb, I have defined following associations: belongs_to :b, :counter_cache => true, :foreign_key => "key_id" belongs_to :c, :counter_cache => true, :foreign_key => "key_id" and in b and c model files has_many :as , :conditions => {:key_type => "B"} has_many :as , :conditions => {:key_type => "C"} Both B and C Models have a column as as_count The problem is every time an object of a is created count is increased in the both the models b and c. Any help is appreciated. Initially i thought that this may work: belongs_to :b, :counter_cache => true, :foreign_key => "key_id", :conditions => {:key_type => "B"} belongs_to :c, :counter_cache => true, :foreign_key => "key_id", :conditions => {:key_type => "C"} But this does not help. Thanks

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  • .NET assembly cache / ngen / jit image warm-up and cool-down behavior

    - by Mike Jiang
    Hi, I have an Input Method (IME) program built with C#.NET 2.0 DLL through C++/CLI. Since an IME is always attaching to another application, the C#.NET DLL seems not able to avoid image address rebasing. Although I have applied ngen to create a native image of that C#.NET 2.0 DLL and installed it into Global Assembly Cache, it didn't improved much, approximately 12 sec. down to 9 sec. on a slow PIII level PC. Therefore I uses a small application, which loads all the components referenced by the C#.NET DLL at the boot up time, to "warm up" the native image of that DLL. It works fine to speed up the loading time to 0.5 sec. However, it only worked for a while. About 30 min. later, it seems to "cool down" again. Is there any way to control the behavior of GAC or native image to be always "hot"? Is this exactly a image address rebasing problem? Thank you for your precious time. Sincerely, Mike

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  • SQL Cache Dependency not working with Stored Procedure

    - by pjacko
    Hello, I can't get SqlCacheDependency to work with a simple stored proc (SQL Server 2008): create proc dbo.spGetPeteTest as set ANSI_NULLS ON set ANSI_PADDING ON set ANSI_WARNINGS ON set CONCAT_NULL_YIELDS_NULL ON set QUOTED_IDENTIFIER ON set NUMERIC_ROUNDABORT OFF set ARITHABORT ON select Id, Artist, Album from dbo.PeteTest And here's my ASP.NET code (3.5 framework): -- global.asax protected void Application_Start(object sender, EventArgs e) { string connectionString = System.Configuration.ConfigurationManager.ConnectionStrings["MyConn"].ConnectionString; System.Data.SqlClient.SqlDependency.Start(connectionString); } -- Code-Behind private DataTable GetAlbums() { string connectionString = System.Configuration.ConfigurationManager.ConnectionStrings["UnigoConnection"].ConnectionString; DataTable dtAlbums = new DataTable(); using (SqlConnection connection = new SqlConnection(connectionString)) { // Works using select statement, but NOT SP with same text //SqlCommand command = new SqlCommand( // "select Id, Artist, Album from dbo.PeteTest", connection); SqlCommand command = new SqlCommand(); command.Connection = connection; command.CommandType = CommandType.StoredProcedure; command.CommandText = "dbo.spGetPeteTest"; System.Web.Caching.SqlCacheDependency new_dependency = new System.Web.Caching.SqlCacheDependency(command); SqlDataAdapter DA1 = new SqlDataAdapter(); DA1.SelectCommand = command; DataSet DS1 = new DataSet(); DA1.Fill(DS1); dtAlbums = DS1.Tables[0]; Cache.Insert("Albums", dtAlbums, new_dependency); } return dtAlbums; } Anyone have any luck with getting this to work with SPs? Thanks!

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  • Jsp page getting called from cache rather than getting loaded from server

    - by sam4u-optimistic86
    I am calling a jsp based on 2 parameters which is passed from jsp 1 in this way.Below i pass 2 parameters into 2.jsp and based on these 2 parameters data is displayed in 2.jsp.I have a loop in which i have a number of hrefs like the one i have described below.Each of these href passes a different set of value to 2.jsp. out.println("<a href=\"2.jsp?prId=" + prog.getId() + count + "\">" + prog.getName() + "</a>"); I retrieve these 2 parameters in 2.jsp using the following lines count_id = request.getParameter( "country_id" ); prog_id = Integer.parseInt(request.getParameter( "program_id" )); Based on these 2 parameters i show the corresponding data in 2.jsp Now i have a back button in 2.jsp and i call 1.jsp in 2.jsp using the following code <a href="1.jsp"><img src="/image/back.gif" border="0"></a> The problem is when i use the back button and go back to 1.jsp and select another href like the one i have described above i get the data related to the previous href selected. I guess the problem is when i request the page is loaded from cache rather than from the server. Please advice

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