lazy-loading

问题 I am writing an algorithm which identifies sentences in given text, split each sentence into words & return these words after some validations. I want to implement the same with the help of multi threading. I'm calling my function which deals with each sentence in threading.thread() for which it throws an error: AttributeError: 'WordListCorpusReader' object has no attribute '_LazyCorpusLoader__args' However, there are few blogs which suggest to use " wn.ensure_loaded() " function. But python

问题 After reading a bit of how yield, foreach, linq deferred execution and iterators work in C#. I decided to give it a try optimizing an attribute based validation mechanic inside a small project. The result: private IEnumerable<string> GetPropertyErrors(PropertyInfo property) { // where Entity is the current object instance string propertyValue = property.GetValue(Entity)?.ToString(); foreach (var attribute in property.GetCustomAttributes().OfType<ValidationAttribute>()) { if (!attribute

问题 I am trying to optimize the load in my application, in fact, I have a lot of images that loaded in my application, and I spend a lot of time waiting for a view controller to open, especially the first initial view which includes a lot of images. I took a look at apple sample but I cannot re-work the whole application, what I want is just to tell me specifically what should I do?, I implement? in the tableview , where the cell is implemented cellforrowatindexpath: NSURL *imageURL = ......;

问题 I have a domain model that has the concept of an Editor and a Project. An Editor owns a number of Projects, and a Project has not only an Editor owner, but also a number of Editor members. Therefore, an Editor also has a number of "joined" Projects. I am taking a DDD approach to modelling this and using the Repository pattern for persistence. However, I don't grok the pattern well enough yet to determine how I should do this. I'm working on the assumption that Editor and Project are

问题 If a Customer has many Orders attached to them. How would you lazy load the Orders List using NHibernate. Is it something that needs to be set up mapping file? any help or an example would be great. 回答1: Heres a good article: http://blogs.chayachronicles.com/sonofnun/archive/2007/03/30/230.aspx From the above article: The most common is to simply mark the class with the 'lazy="true"' attribute or place 'default-lazy="true"' in the mapping declaration: <hibernate-mapping xmlns="urn:nhibernate

问题 If a Customer has many Orders attached to them. How would you lazy load the Orders List using NHibernate. Is it something that needs to be set up mapping file? any help or an example would be great. 回答1: Heres a good article: http://blogs.chayachronicles.com/sonofnun/archive/2007/03/30/230.aspx From the above article: The most common is to simply mark the class with the 'lazy="true"' attribute or place 'default-lazy="true"' in the mapping declaration: <hibernate-mapping xmlns="urn:nhibernate

问题 I am using Hibernate with spring. I have a model-class like this. @Entity @Table(name = "forumtopic") public final class Forumtopic extends AbstractUserTracking implements java.io.Serializable { /**SNIP **/ private Forumcategory forumcategory; @ManyToOne(fetch = FetchType.LAZY) @JoinColumn(name = "FkForumcategoryId", nullable = false) public Forumcategory getForumcategory() { return this.forumcategory; } public void setForumcategory(final Forumcategory forumcategory) { this.forumcategory =

问题 Does anyone know how to implement Lazy Loading recyclerView in android?I'm pretty new to android and I don't know how to figure this out.I'll be thankful if anyone helps. 回答1: You may use EndlessRecyclerView Overview A common application feature is to load automatically more items as the user scrolls through the items (aka infinite scroll). This is done by triggering a request for more data once the user crosses a threshold of remaining items before they've hit the end. The approaches for

问题 I'm running into LazyLoading exceptions like the most people who try remoting with an ORM. In most cases switching to eager fetching solves the problem (Lazy Loading / Non atomic queries / Thread safety / n+1 problem ...). But eager fetching has also disadvantages if you are dealing with a really big object graph. Loading the whole object graph isn't needed in the most use-cases. It feels bad to load more data then needed (or load them from the db and extract the needed subset). So what

问题 I'm running into LazyLoading exceptions like the most people who try remoting with an ORM. In most cases switching to eager fetching solves the problem (Lazy Loading / Non atomic queries / Thread safety / n+1 problem ...). But eager fetching has also disadvantages if you are dealing with a really big object graph. Loading the whole object graph isn't needed in the most use-cases. It feels bad to load more data then needed (or load them from the db and extract the needed subset). So what