persistence

问题 my cache is empty so sql queries return null. The read-through means that if the cache is missed, then Ignite will automatically get down to the underlying db(or persistent store) to load the corresponding data. If there are new data inserted into the underlying db table ,i have to down cache server to load the newly inserted data from the db table automatically or it will sync automatically ? Is work same as Spring's @Cacheable or work differently. It looks to me that the answer is no. Cache

问题 Since IE9 cannot be used when running websites in file mode. Would a (an uggly) solution be to run a local webserver / service on the phone accessing isolatedStorage? 回答1: Have you tried UserData Persistence? It works in IE7/IE8, but I havent tried it in IE9. 来源： https://stackoverflow.com/questions/8706257/any-ie9-alternative-to-localstorage-that-will-work-with-file-on-the-windows-7

问题 I have 2 simple domain objects as follows..with MYSQL DB. @Entity @Table(name="Product") public class Product { @Id @Column(name="productId") @GeneratedValue protected int productId; @Column(name="Product_Name") protected String name; @OneToMany(cascade = javax.persistence.CascadeType.ALL,mappedBy="product") protected List<ProductOption> productoption = new ArrayList<ProductOption>(); and second object @Entity @Table(name="ProductOption") public class ProductOption{ /** * */ @Id @Column(name=

问题 This how I deserialize my arrayList which contains objects of identification public void deserializeArrayList(){ String path = "./qbank/IdentificationHARD.quiz"; try{ FileInputStream fileIn = new FileInputStream(path); ObjectInputStream in = new ObjectInputStream(fileIn); ArrayList<Identification> list = (ArrayList<Identification>) in.readObject(); System.out.println(list); }catch(Exception e){ e.printStackTrace(); } } This is how I serialize it public void saveItemIdentification(ArrayList

问题 I have a swing Java application that preserves a lot of data (you can think of a game and its saves for example). Those data are stored in files rather than in database. I would like to keep this files near installation files(.jar file) of my application.Some users(like me) are used to delete default application folder of OS when it gets large and I don't want them to loose their data this way. Any ideas how to do this easily ? How do I get the folder of the .jar file from program that is

问题 I'm new to JSP and Quartz Scheduling! In this project, I'm trying to make the quartz scheduler continue functioning in case the server is turned off then on ignoring the missed jobs. For this, I researched JobPersistence and I have modified the quartz.properties file as the following: org.quartz.threadPool.threadCount=5 org.quartz.jobStore.class = org.quartz.impl.jdbcjobstore.JobStoreTX org.quartz.jobStore.tablePrefix = QRTZ_ org.quartz.jobStore.useProperties = true org.quartz.jobStore

问题 I am using eclipse with weblogic server. In order to add the project to the weblogic server, it needs to support Java Persistance 2.0, however when trying to install it, I keep getting this message Error Enabling Java Persistence 2.0 in Weblogic Server installation I tried to follow the Oracle documents to solve this but they make no sense since I'm pretty novice with Weblogic. http://docs.oracle.com/cd/E17904_01/web.1111/e13720/using_toplink.htm#CIHDJHHI Please help! I understand the second

问题 After a lot of googling I didn't find answer to my question, except downgrade hibernate version. But I faced this situation at similar post dated as 2003 year. What the problem: //in the first session I do session1.save(entity); session1.getTransaction().commit(); session1.close(); //in the second session (after client response), I get back the serialized copy of the entity entityCopy = deserialize(jsonString); entityCopy.setEntityDetail(newDetail); //1 session2.merge(entityCopy); //EXCEPTION

问题 I have a div element which acts as a global contianer for my webpage, I also have a div element inside this which I use as a curtain i.e. when it is activated it covers the whole page in a dark semi transparent layer (just like a lightbox) so the page is essentially deactivated and a warning dialog or picture box, etc, etc can be displayed on top. I can achieve this efect and functionality easily with javascript but I wanted to know whether it could be achieved purely with css animations?

问题 I've been asking questions about what I think might be solutions, but somebody pointed out that I'm falling into the XY problem and that I should just ask about my exact problem. I have a struct that I want other people to be able to use in their own programs. It needs to be possible to implicitly convert to this type from other existing types but at the same time some information needs to persists after this assignment. Here's a simple example of the issue: using System; public struct