persistence

问题 Here's the situation: I have a label's text set, immediately followed by a response.redirect() call as follows (this is just an example, but I believe it describes my situation accurately): aspx: <asp:Label runat="server" Text="default text" /> Code-behind (code called on an onclick event): Label.Text = "foo"; Response.Redirect("Default.aspx"); When the page renders, the label says "default text". What do I need to do differently? My understanding was that such changes would be done

问题 I'm looking for a framework (open source) for distributed computing for .Net / Mono that is not simply task-based but supports persistence of distributed tasks. The project at hand is a complex system simulation which needs to be distributed into smaller independent "subsimulations". These subsimulations will keep running for a long time and will at intervals receive and send back data to the Master where a View with aggregate results is being updated and presented to the user. So the work to

问题 I think I will need to use javascript to do this so I put it here on stack overflow. So, I have two themes for my website, the only difference is that one is a solid colour (background), the other a repeated image, so I didn't make separate css files for them. I have two links in the navigation bar that change it (with javascript). In the css file its the solid colour, so when ever the page loads it starts out as that. When the image theme link is clicked, it sets the document.body

问题 I am interested in developing a portal-based application that works with EAV models and would like to know if there are any Java frameworks that aid in this type of development? salesforce.com uses EAV and currently has twenty tables. The framework I seek should allow it to be configurable to different EAV implementations 回答1: Sesame is a more modern RDF API compared to Jena. RDF can be seen as a variant of the EAV model. The framework I seek should allow it to be configurable to different

问题 I have the following method - @Transactional public void savethis(){ EntityObject t = entityManagerTreasury.getReference(EntityObject.class, 1); t.setAction("abc"); } Now, going in line with the following answer - https://stackoverflow.com/a/1608621/4881766 I should be only seeing an update query in my sql logs. However the behaviour i've observed is as follows - Given code - select and then update commenting the t.setAction("abc"); line - No select and no update replacing getReference() with

问题 I have tried to save an object to database: Item = persistence.define('Item', { imageUrl: "TEXT", }) this is working,the imageUrl is set correctly: var c = new Item({imageUrl: "a"}); this is not working, imageUrl is empty in the db var c = new Item(); c.imageUrl = "a"; this is working: var c = new Item(); c._data.imageUrl = "a"; Seems like a bug. 回答1: I think I found the reason, If you are using jquery then you have to use: e. g. obj.name(newValue) to set and obj.name() to get attributs. Can

问题 I'm back with the same problem ... I'm trying to uses queries in my Cassandra DB with Kundera (Cassandra ORM), this queries work in an others project but when I try to do it in webapp (using tomcat 6.0), I got this error : com.impetus.kundera.metadata.KunderaMetadataManager - No Entity metadata found for the class => JavaNullPointerException. But when I leave the persistence.xml from my project I got an other error. (NoPersistence.xml found or something ... ) So, my project found Persistence

问题 I'm trying to decide on the best strategy for accessing the database. I understand that this is a generic question and there's no a single good answer, but I will provide some guidelines on what I'm looking for. The last few years we have been using our own persistence framework, that although limited has served as well. However it needs some major improvements and I'm wondering if I should go that way or use one of the existing frameworks. The criteria that I'm looking for, in order of

问题 I implemented the Spring-TaskExecutor (which is the equivalent of the JDK 1.5's Executor.) to process notifications notifications receiving from external systems. Interface with only one method: public interface AsynchronousService { void executeAsynchronously(Runnable task); } and the corresponding implementation: public class AsynchronousServiceImpl implements AsynchronousService { private Executor taskExecutor; @Override public void executeAsynchronously(Runnable task) { taskExecutor

问题 I am trying to create transaction manager and use it with Hibernate for Oracle. My persistence.xml file is: <persistence-unit name="org.drools.persistence.jpa" transaction-type="JTA"> <provider>org.hibernate.ejb.HibernatePersistence</provider> <jta-data-source>jdbc/testDS1</jta-data-source> <class>org.drools.persistence.session.SessionInfo</class> <class>org.jbpm.persistence.processinstance.ProcessInstanceInfo</class> <class>org.drools.persistence.processinstance.WorkItemInfo</class> <exclude