lazy-loading

Lazy loading not working in JPA with hibernate

China☆狼群 提交于 2019-12-02 07:05:58
I am using JPA with hibernate in my spring boot application. Whenever I try to fetch the enities using jpa methods, its returning the entity plus all the association present inside it. I wanted to fetch the associated entities on demand(lazy loading), so I have provided fetch=FetchType.LAZY in my domain class. But still its returning all the entries. Below is the code: Case.java @Entity @Table(name="smss_case") public class Case implements Serializable { /** * */ private static final long serialVersionUID = -2608745044895898119L; @Id @Column(name = "case_id", nullable = false) @GeneratedValue

Doctrine2 ArrayCollection

纵然是瞬间 提交于 2019-12-02 06:34:21
问题 Ok, I have a User entity as follows <?php class User { /** * @var integer * @Id * @Column(type="integer") * @GeneratedValue */ protected $id; /** * @var \Application\Entity\Url[] * @OneToMany(targetEntity="Url", mappedBy="user", cascade={"persist", "remove"}) */ protected $urls; public function __construct() { $this->urls = new \Doctrine\Common\Collections\ArrayCollection(); } public function addUrl($url) { // This is where I have a problem } } Now, what I want to do is check if the User has

Exception in lazy loading (Entity Framework)

▼魔方 西西 提交于 2019-12-02 06:21:42
问题 I use Entity Framework in my project. The issue is well known but supposed solutions (eg. this and this) doesn't work for me. /// <summary> /// Returns complete list of lecturers from DB. /// </summary> public IEnumerable<Lecturer> GetAllLecturers() { IList<Lecturer> query; using (var dbb = new AcademicTimetableDbContext()) { query = (from b in dbb.Lecturers select b).ToList(); } Debug.WriteLine(query[0].AcademicDegree); // Exception (***) return query; } Exception (***): The ObjectContext

Lazy loading tabs with user controls

↘锁芯ラ 提交于 2019-12-02 05:42:15
问题 I want to use lazy loading of tabs in AJAX tab container. I have implemented it. But the problem that I am facing is that when I click a button or fire any event in that user control, it is not fired; nothing happens. <asp:TabContainer runat="server" ID="TabContainerUp" ActiveTabIndex="0" AutoPostBack="true" OnActiveTabChanged="TabContainerUp_ActiveTabChanged"> <asp:TabPanel ID="tab1" runat="server"> <HeaderTemplate> <img src="images/uc1.png" alt="" /> </HeaderTemplate> <ContentTemplate> <asp

JPA Hibernate want lazy load to return empty collection

给你一囗甜甜゛ 提交于 2019-12-02 03:56:15
I am using JPA-Hibernate at the moment and want collections to be empty until i call the associated get(). I have been trying for several days now without any success. The reason i want this is because i use Exterialize (or Serialize) and do not always want the collections to be there when sending the serialized string over to the client. @Entity public class Thread implements Externalizable { static final long serialVersionUID = 9L; @OneToMany(mappedBy = "parentThread", fetch = FetchType.LAZY) @LazyCollection(LazyCollectionOption.EXTRA) public Collection<Reply> getReplies() { return replies;

Make 2nd API calls when all contents are loaded (lazy loading) from the first API call in React js

杀马特。学长 韩版系。学妹 提交于 2019-12-02 02:54:56
I have some .json files. I need to show all the data from the first .json file in browser as lazy loading.I need to make API call to the second .json when all contents are loaded from the first .json file (when user scoll to end of the page) . I should not make all API call at a time. How to do this using react js. Make use of javascript scroll eventListener and calculate the window scroll height in order to trigger the async call. Please bind the necessary method in the constructor and define state respectively. Here is the code componentDidMount(){ if(this.state.newData.length === 0){ window

lazy loading images in UITableView iPhone SDK

☆樱花仙子☆ 提交于 2019-12-02 02:24:13
I need to implement the lazy loading concept for the images in my tableview, so that the user will be provided with the textual data initially and later the images. How can i implement this in to my app.. help needed.. please Thanks in advance Shibin What i have created for a project of mine works as follows; Extend the UITableViewCell class by a category in "UITableViewCell+Async.h" (See some examples if you are not sure what the category thing in Obj C is) @interface UITableViewCell (Async) -(void)loadAsyncImage:(NSString*)url withIndex:(NSInteger)index inWidth:(NSInteger)width inHeight:

Exception in lazy loading (Entity Framework)

对着背影说爱祢 提交于 2019-12-02 01:13:23
I use Entity Framework in my project. The issue is well known but supposed solutions (eg. this and this ) doesn't work for me. /// <summary> /// Returns complete list of lecturers from DB. /// </summary> public IEnumerable<Lecturer> GetAllLecturers() { IList<Lecturer> query; using (var dbb = new AcademicTimetableDbContext()) { query = (from b in dbb.Lecturers select b).ToList(); } Debug.WriteLine(query[0].AcademicDegree); // Exception (***) return query; } Exception (***): The ObjectContext instance has been disposed and can no longer be used for operations that require a connection. public

Lazy loading in MongoDB with NoRM

别说谁变了你拦得住时间么 提交于 2019-12-02 00:52:04
问题 I have a model similar to this: (simplified) Question: public class Question { public string QuestionID { get; set; } public string Title { get; set; } public string Body { get; set; } public List<Answer> Answers { get; set; } } Answer: public class Answer { public string QuestionID { get; set; } public string Body { get; set; } } I intend to store the data in MongoDB, and would like to use NoRM with this. My question is: Is lazy loading supported? Or can I set it up to do lazy-loading on the

AE.Net.Mail message.value is null

末鹿安然 提交于 2019-12-02 00:45:23
问题 I am using AE.net.mail for downloading attachments from hotmail account. following is code. Messages array gets all mails according to given condition. The problem is that message.Value property for every record is null except the first record. ImapClient ic = new ImapClient("imap-mail.outlook.com", "xxx@hotmail.com", "xxx", ImapClient.AuthMethods.Login, 993, true)) { ic.SelectMailbox("INBOX"); Lazy<MailMessage>[] messages = ic.SearchMessages(SearchCondition.From("xxx@yahoo.com")); foreach