lazy-loading

问题 So i am trying to load images from my returned json array into a staggered gridview. I have already tested putting links directly into the array like the example and it works perfectly, but once i try to use json data, i get errors.(Both network, and storage errors) I have all the required permmissions in my manifest(ie, internet, internal and external storage) Here is my code, can somebody please let me know what's wrong? Thanks!! package com.example.staggeredgridviewdemo; import org.json

问题 I've tried to lazy-load a property in my domain model, but lazy loading doesn't work. (It is always loaded). [Property(0, Column = "picture", Lazy=true)] public virtual System.Byte[] Picture { get { return picture; } set { picture = value; } } When reading the documentation here it says that it requires build-time bytecode instrumentation. What does this mean - and how can I get it ? 回答1: I have you tried a collection rather then an array? [Property(0, Column = "picture", Lazy=true)] public

问题 I successfully setup hibernate 3.6.2 to use second level cache, using the ehcache 2.5.2 library. I can see in logs and statistics that entities populate second level caches and that the queries that I want to be cacheable are cached. As I use XML configuration in hbm.xml files, considered classes have a <cache usage="read-write"/> sub-element. The following properties are defined : hibernate.cache.use_second_level_cache=true hibernate.cache.use_query_cache=org.hibernate.cache.EhCacheProvider

问题 I am creating a number of tableviews programmatically. The client has specifically asked for a layout that is not a UITableView Controller. Something like: The number of tableviews as well as the number of items in each table varies. All of the tables are created at once when the view loads. I would like to add thumbnails to the cells in the table views. I need find a way to lazy load the thumbnails. I have successfully implemented a lazy load on a UITableViewController. My prior success is

问题 I've created a T4 template which generates standard Entities classes along with Interfaces for each of their properties so that I can make customized poco objects containing only the data that I want. I've also created a copy function which can convert between any of the objects which implement said entity's interface The generated code looks like this //------------------------------------------------------------------------------ // <auto-generated> // This code was generated from a

问题 I have a document generator which contains queries for about 200 items at the moment but will likely be upwards of 500 when complete. I've recently noticed that some of the mappings denote lazy loading. This presents a problem for the document generator as it needs access to all of these properties based on which document is being generated. While I am aware of the DataLoadOptions that can be specified to the context, this would result in me having to explicitly specify every column that

问题 I'm struggling with real-world use of JPA (Hibernate, EclipseLink, etc) in a Swing desktop application. JPA seems like a great idea, but relies on lazy loading for efficiency. Lazy loading requires the entity manager exist for the lifetime of the entity beans, and offers no control over what thread is used for loading or any way to do the loading in the background while the EDT gets on with other things. Accessing a property that happens to be lazily loaded on the EDT will block your app's UI

问题 In Angular 6 , I have created lazy module and it takes a-lot time to load while routing. Is there any way to create faster web application in angular 6 ? 回答1: If loading a module while navigating takes too much time, you could consider eagerly preloading modules instead. What this does is load your main application module first and display your view, and in the background load all the other modules even before you navigate to them. You can use the following RouterModule configuration to make

问题 now a days there are web pages which developed using some ajax based frameworks (dynamically or lazy loading). Just wondering if there is any way to download html contents of such pages as when i try to download using htmlAgilityPack but all i get is header and empty body part but when i try to inspect element then only i can see proper htmls/div but of that page when i try to look into view source i see empty body... is there any third party like htmlAgilityPack or any other way? 回答1: You

问题 I am porting a java fat client from JDBC SQLite to Hibernate H2. Until now I tried to separate all my database code in separate classes, like TableTeam or TableMember, which have methods like .getAllTeams() or .updateTeam(Team t) . These methods acted as a wrapper around their sql queries they executed. Now with hibernate I tried to leave the interface as good as possible and just change the SQL queries to hibernate functions, which mostly works. With one exception: updating elements. team =