Before class

Marks an aspect method to run before each matched call.

Use it for checks and logging that must happen before the method body. The advice may take a JoinPoint to read the method and its arguments. It cannot change the arguments or the result; throwing an error stops the call, and the caller gets that error. On a method returning a Future the advice may be async: the call waits for it before the method runs. On a synchronous method an async advice fails the call with an AopInvocationException.

// Records each Calculator call before it runs.
@Before('execution(* Calculator.*(..))')
void before(JoinPoint joinPoint) => log.add(joinPoint.toShortString());

Spring (Java):

@Before("execution(* Calculator.*(..))")
void before(JoinPoint joinPoint) { log.add(joinPoint.toShortString()); }

Constructors

Before(String pointcut)

Runs the annotated method before calls matching pointcut.

const

Properties

hashCode → int

The hash code for this object.

no setter, inherited

pointcut → String

The pointcut expression selecting the advised methods.

final

runtimeType → Type

A representation of the runtime type of the object.

no setter, inherited

Methods

noSuchMethod(Invocation invocation) → dynamic

Invoked when a nonexistent method or property is accessed.

inherited

toString() → String

A string representation of this object.

inherited

Operators

operator ==(Object other) → bool

The equality operator.

inherited