pip_services3_commons.reflect.MethodReflector module

pip_services3_commons.reflect.MethodReflector

Method reflector implementation

copyright

Conceptual Vision Consulting LLC 2018-2019, see AUTHORS for more details.

license

MIT, see LICENSE for more details.

class pip_services3_commons.reflect.MethodReflector.MethodReflector

Bases: object

Helper class to perform method introspection and dynamic invocation. This class has symmetric implementation across all languages supported by Pip.Services toolkit and used to support dynamic data processing.

Because all languages have different casing and case sensitivity __rules, this MethodReflector treats all method names as case insensitive.

Example:

myObj = new MyObject()

methods = MethodReflector.get_method_names()
MethodReflector.has_method(myObj, "myMethod")
MethodReflector.invoke_method(myObj, "myMethod", 123)
static get_method_names(obj: Any) → List[str]

Gets names of all methods implemented in specified object.

Parameters

obj – an object to introspect.

Returns

a list with method names.

static has_method(obj: Any, name: str) → bool

Checks if object has a method with specified name.

Parameters

  • obj – an object to introspect.

  • name – a name of the method to check.

Returns

true if the object has the method and false if it doesn’t.

static invoke_method(obj: Any, name: str, *args: Any) → Any

Invokes an object method by its name with specified parameters.

Parameters

  • obj – an object to invoke.

  • name – a name of the method to invoke.

  • args – a list of method arguments.

Returns

the result of the method invocation or null if method returns void.