DT Big Data Dream Factory 57 speaks

Today "DT Big Data DreamWorks Video", 57th Lecture: Scala Dependency Injection in action

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In this section, teacher Wang spoke of dependency injection. The first is to have a trait a inside to have an object, the object to be mixed with another trait B, and B's Method B (), A has a method a () Call method B (), the dependency injection class C will inherit both A and Withb,c implementation method B (), so you can call C's a () method, The B () method of C is called to complete the dependency injection.

DT Big Data Dream Factory 57 speaks