Some of the answers here are for infinite page. What Salman is asking is lazy loading of images. Plugin Demo EDIT: How do these plugins work? This is a simplified explanation: Find window size and find the position of all images and their sizes If the image is not within the window size, replace it … Read more
This is how I fetch multiple photos in my activity. You can use parts of it for fit your logic. I use this to fetch Facebook Images from an Album. So my needs are (I am assuming) different from your needs. But again, the logic may be of use to you. Note: This will be … Read more
Loading the images on a background thread is still a good idea. If you didn’t want to reload them each time, I’d suggest setting up an NSMutableDictionary and storing the images in there. You could use some unique identifier, like the row ID or even the name of the image, as the key for each … Read more
Here is the idiom recommended in the Item 71: Use lazy initialization judiciously of Effective Java: If you need to use lazy initialization for performance on an instance field, use the double-check idiom. This idiom avoids the cost of locking when accessing the field after it has been initialized (Item 67). The idea behind the … Read more
The following answer refers to Database-First or Model-First workflow (the only two workflows that were available with Entity Framework (version <= 4.0) when the question was asked). If you are using Code-First workflow (which is available since EF version >= 4.1) proceed to ssmith’s answer to this question for a correct solution. The edmx file … Read more
If the association is optional, Hibernate has no way of knowing if an address exists for a given person without issuing a query. So it can’t populate the address field with a proxy, because there could be no address referencing the person, and it can’t populate it with null, because there might be an address … Read more
Yes, use getScript instead of document.write – it will even allow for a callback once the file loads. You might want to check if TinyMCE is defined, though, before including it (for subsequent calls to ‘Add Comment’) so the code might look something like this: $(‘#add_comment’).click(function() { if(typeof TinyMCE == “undefined”) { $.getScript(‘tinymce.js’, function() { … Read more
Use extension methods. Replace NameOfContext with the name of your object context. public static class Extensions{ public static IQueryable<Company> CompleteCompanies(this NameOfContext context){ return context.Companies .Include(“Employee.Employee_Car”) .Include(“Employee.Employee_Country”) ; } public static Company CompanyById(this NameOfContext context, int companyID){ return context.Companies .Include(“Employee.Employee_Car”) .Include(“Employee.Employee_Country”) .FirstOrDefault(c => c.Id == companyID) ; } } Then your code becomes Company company = … Read more
Say you have a parent and that parent has a collection of children. Hibernate now can “lazy-load” the children, which means that it does not actually load all the children when loading the parent. Instead, it loads them when requested to do so. You can either request this explicitly or, and this is far more … Read more
If you using Spring mark the class as @Transactional, then Spring will handle session management. @Transactional public class MyClass { … } By using @Transactional, many important aspects such as transaction propagation are handled automatically. In this case if another transactional method is called the method will have the option of joining the ongoing transaction … Read more