In Salesforce,How to pass the context variables in handler in triggers ?

It is always a best practice to write a single trigger on object and process all operation in apex class (we called it as handler) instead of
writing logic in trigger. In handler you can specify the order of event based on different context variables. If you write many triggers in on object,
then you cannot control the order in which triggers gets executed.

For best practice, use below suggestion:

1. Pass all trigger context variables to static method (say "OperationManager")in handler class.
2. Create different static methods for different operations which you need to perform.
3. Control the order of different operation in "OperationManager" static method based on context variables.
4. Also you can create different apex classes and call them from "OperationManager" static method.