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What is lazy initialization in C++?
Lazy initialisation is one of those design patterns which is in use in almost all programming languages. Its goal is to move the object’s construction forward in time. It’s especially handy when the creation of the object is expensive, and you want to defer it as late as possible, or even skip entirely.
What is lazy initialization hibernate?
3. Lazy fetching (or initialization) is the opposite of eager fetching. Lazy fetching, the default in hibernate, means that when a record is loaded from the database, the one-to-many relationship child rows are not loaded.
What is lazy initialization and why is it useful?
Lazy initialization of an object means that its creation is deferred until it is first used. (For this topic, the terms lazy initialization and lazy instantiation are synonymous.) Lazy initialization is primarily used to improve performance, avoid wasteful computation, and reduce program memory requirements.
When to use exception caching in lazy initialization?
If you enable exception caching, this immutability also extends to exception behavior. If a lazy-initialized object has exception caching enabled and throws an exception from its initialization method when the Value property is first accessed, that same exception is thrown on every subsequent attempt to access the Value property.
Why is lazy initialization thread safe in C #?
One interesting fact about Lazy is that it is Thread-Safe by nature. That means if several threads hit the following line, the first thread does the initialization and the others will use the same instance.
How to create a lazy initialized type in Visual Basic?
To define a lazy-initialized type, for example, MyType, use Lazy (Lazy (Of MyType) in Visual Basic), as shown in the following example. If no delegate is passed in the Lazy constructor, the wrapped type is created by using Activator.CreateInstance when the value property is first accessed.