java - Scala and @Inject annotation -

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i know best way deal dependency injection in scala using tools built language, working on project must integrate scala , java code.

then, using google guice, implements specification jsr-330. fortunatly, found no problem during integration of guice , scala. using constructor injection, because have deal immutability.

my question is, why in scala have use notation @inject() in front of constructor parameter? why () paranthesis? follows example:

class myclass @inject() (val another: anotherclass) {   // body of class }

otherwise, how tell if (val another: anotherclass) constructor parameter list or arguments @inject?


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