lazy-initialization Questions
1
Today I faced with next problem in hibernate:
My method:
@Transactional
public Period getDefault(Team team) {
Period defaultPeriod = team.getDefaultPeriod();
List<Period> periods = _perio...
Stalagmite asked 10/9, 2013 at 16:55
1
Solved
In an article on the double-checked locking idiom, I found this quote:
One special case of lazy initialization that does work as expected without synchronization is the static singleton. When th...
Ermeena asked 2/2, 2013 at 0:26
1
Solved
Using C#/.NET 4.0, a Lazy<T> object can be declared as follows.
using System;
using System.Threading;
...
var factory = () => { return new object(); };
var lazy = new Lazy<object>(f...
Ress asked 14/12, 2012 at 0:30
1
Solved
Given the trait (simplified)
trait A {
val eventStream: EventStream
val credentialsStorage = // something here
val userStorage = // something here
val crypto = // something here
...
lazy va...
Feed asked 24/11, 2012 at 14:58
3
Solved
I want to use System.Lazy to Lazy Initialization of my List in my Entites:
public class Questionary
{
private Lazy<List<Question>> _questions = new Lazy<List<Question>>(()...
June asked 27/7, 2011 at 13:37
1
Solved
I know there are many topics and resources about this, but I'm wondering about a very specific question (and it might take a very long time to check all sources for a definite answer).
I know tha...
Jeffereyjefferies asked 26/10, 2012 at 18:8
2
Solved
I've setup a spring config for JMS. Things work fine, except I can't seem to get it to lazy load (notice the default-lazy-init true in the code below). If I comment out the jmsContainer(DMLC) from ...
Offstage asked 10/12, 2010 at 19:40
1
I was reading the section on Lazyness [sic] over at Twitter's Effective Scala page, which includes this suggestion (emphasis is mine):
Use lazy fields for this purpose [computing and caching val...
Illdefined asked 18/10, 2012 at 16:52
5
Solved
Is lazy instantiation about using less code but getting the same result? Surely this is generally a good thing to do (providing making the code to short / efficient doesn't damage readability/maint...
Peculiar asked 25/9, 2012 at 13:29
4
Quick question... Well I understand that all properties start out as nil in Objective-C and that sending a message to nil does nothing, therefore you must initialize using [[Class alloc] init]; bef...
Histrionics asked 2/8, 2012 at 0:44
5
I usually implement the singleton pattern this way :
class Singleton
{
public:
virtual ~Singleton() {}
static Singleton& GetInstance()
{
static Singleton instance;
return instance;
}
...
Fontes asked 20/7, 2012 at 13:34
4
Solved
Recently I was having some issues with a singelton class that was lazy initializing a dictionary where a second thread would try to use it before it had actually been populated. So I implemented th...
Drusilla asked 28/6, 2012 at 1:10
2
Solved
I have a class with a property that's a Dictionary:
public class Entity
{
public Dictionary<string, string> Name { get; set; }
}
I would like switch this property to use lazy initializtion...
Soniferous asked 3/4, 2012 at 23:31
4
Solved
The C# "readonly" keyword is a modifier that when a field declaration includes it, assignments to the fields introduced by the declaration can only occur as part of the declaration or in a construc...
Harrovian asked 11/11, 2011 at 1:4
5
Solved
It appears in java.lang.String.java, that Java will only generate the hashcode, and then store it, after a call to hashcode(), but why not just make the hashcode in the constructor?
The relevant c...
Mcauley asked 17/2, 2012 at 0:29
1
Is anyone aware of an implementation of shared_ptr and weak_ptr together with a lazy initialization partner? The requirements of the classes were:
A lazy_ptr class that allows a client to constru...
Apogamy asked 2/12, 2011 at 20:54
4
Solved
Assume you have a Singleton Constants class, instance of which you'd like to use throughout your application.
In someClass, therefore we can reference [Constants instance] someCleverConstant];
...
Expend asked 13/12, 2011 at 23:57
1
Solved
I am learning hibernate mapping using annotation. I have completed one section. I.e. I can insert child class automatically when I save the parent table.
see_that.
But I did n't get the child tab...
Scleroderma asked 20/10, 2011 at 7:19
4
Solved
Greetings I was doing some lazy initialization code today, and thought why not use the null-coalescing operator to do this, it is shorter, but then I thought is there any overhead or additional cos...
Valtin asked 13/9, 2011 at 21:29
1
I've been using the gcc const and pure attributes for functions which return a pointer to "constant" data that's allocated and initialized on the first use, i.e. where the function will return the ...
Hysterectomize asked 29/7, 2011 at 1:26
1
Solved
Consider this example, it shows two possible ways of lazy initialization.
Except for being thread-safe, are there any specific advantates of using Lazy<T> here?
class Customer {
private de...
Install asked 25/7, 2011 at 7:44
1
I get these error log when viewing a page
ERROR [TP-Processor11] (LazyInitializationException.java:42) - could not initialize proxy - no Session
org.hibernate.LazyInitializationException: could n...
Indistinct asked 18/3, 2010 at 12:17
3
Solved
I'm currently altering a widely used class to move as much of the expensive initialization from the class constructor into Lazy Initialized properties. Below is an example (in c#):
Before:
public...
Consummate asked 6/1, 2011 at 15:57
2
Solved
As I know if a variable is declared Lazy, then its constructor is called when we use the Value property.
I need to pass some parameters to this Lazy instance but cannot find the correct syntax.
Th...
Rehearsal asked 9/12, 2010 at 9:40
3
Should C# have a lazy keyword to make lazy initialization easier?
E.g.
public lazy string LazyInitializeString = GetStringFromDatabase();
instead of
private string _backingField;
public st...
Peisch asked 2/12, 2010 at 6:7
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