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Java 9 Dependency Injection
book

Java 9 Dependency Injection

by Nilang Patel, Krunal Patel
April 2018
Intermediate to advanced content levelIntermediate to advanced
246 pages
6h 11m
English
Packt Publishing
Content preview from Java 9 Dependency Injection

How to choose a bean scope

Each scope in Spring has a different feature, and it falls to us as programmers to know how to utilize those scopes.

In an application, if we have a stateless object and there is no impact on the object creation process then the use of a scope is unnecessary. In contrast, if an object has state then it is advisable to use a scope such as singleton.

When dependency injection is in business, then the singleton scope is not adding much value. In spite of the fact that singletons spare object creation (and afterward garbage collection), synchronization requires us to initialize a singleton bean. Singletons are most valuable for:

  • Configuration of stateful beans
  • Lookup of objects that are costly to build
  • A database association ...
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Publisher Resources

ISBN: 9781788296250Supplemental Content