February 2018
Intermediate to advanced
552 pages
13h 46m
English
Content preview from Scala Reactive Programming
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Benefits of DI
The following are the benefits of DI:
- Clear separation between actual business logic and dependency resolution
- Encourages Single Responsibility Principle (SRP)
- Ease of maintenance and testing
Play Framework supports the following two kinds of DI:
- Play Compile-time DI: This involves resolving dependencies automatically at compile-time.
- Play Run-time DI: This involves resolving dependencies automatically at runtime. Play Framework supports the Run-time DI based on JSR-330 (https://jcp.org/en/jsr/detail?id=330).
By default, Play Framework supports the Compile-time DI out of the box using Guice.
Let's explore the Play Compile-time DI in the next section using a simple Play HelloWorld Web Application.
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