I want to know clearly why and when we use seam injection and outjection? I find and research all day but i can't clearly see it.Please help me.I will appreciate all of your supports.We can import bean and call it properties and methods.That's right?what's the difference? They means injection like that @In Specifies that a component attribute is to be injected from a context variable at the beginning of each component invocation. If the context variable is null, an exception will be thrown.
Make sure you understand Depedency Injection as a concept first. Then get a copy of Seam in Action. Your chapter of choice is chapter 6.
I'm sorry the question really is far too general to give a conclusion about the concepts.