Spring 5 Design Patterns

Writing pointcuts

We can write pointcuts by using execution designator as follows:

• execution(<method pattern>): The method must match the pattern as defined follows
• Can chain together to create composite pointcuts by using following operators: && (and), || (or), ! (not)
• Method pattern: Following is method pattern:
  • [Modifiers] ReturnType [ClassType]
  • MethodName ([Arguments]) [throws ExceptionType]

In the preceding method pattern, values within bracket [ ] that is, modifiers, ClassType, arguments and exceptions are all optional values. There is no need to define it for every pointcut using execution designator. Value without brackets such as ReturnType, and MethodName are mandatory to define.

Let's define a TransferService interface: