ABAP Keyword Documentation → ABAP - Reference → Declarative statemnts → Classes and Interfaces → Components in Classes and Interfaces → Methods
CLASS-METHODS
Other versions: 7.31 | 7.40 | 7.54
Syntax Forms
General Static Methods
1. CLASS-METHODS meth
[IMPORTING parameters [PREFERRED PARAMETER p]]
[EXPORTING parameters]
[CHANGING parameters]
[{RAISING exc1|RESUMBALE(exc1) exc2|RESUMBALE(exc2) ...}
|{EXCEPTIONS exc1 exc2 ...}].
Functional Static Methods
2. CLASS-METHODS meth
[IMPORTING
parameters [PREFERRED PARAMETER p]] RETURNING VALUE(r) typing
[{RAISING exc1|RESUMBALE(exc1) exc2|RESUMBALE(exc2) ...}
|{EXCEPTIONS exc1 exc2 ...}].
Static Constructors
3. CLASS-METHODS class_constructor.
Event Handlers
4. CLASS-METHODS meth FOR EVENT evt OF {class|intf}
[IMPORTING p1 p2 ... [sender]].
Effect
The CLASS-METHODS statement declares a
static method meth. The
naming conventions apply for the name meth.
With the class component selector (=>), static methods can be used independently
of objects. In static methods, you can only access the static components of the class or its superclasses if you do not use the component selector.
Using the variants of the CLASS-METHODS statement, different types of method declaration are possible :
-
General Static Methods
The most general form of theCLASS-METHODSstatement allows you to define static methods with any number of input and output parameters. -
Functional Static Methods
Functional methods can have any number of input parameters and exactly one return value as the output parameter. -
Static Constructors
Static constructors are methods with the predefined nameclass_constructor, which are automatically called before their class is first used. Static constructors have no parameter interface. -
Static Event Handlers
Static event handlers are static methods, that are called by an event of a class or an interface. The only possible formal parameters of an event handler are input parameters that were defined as output parameters of the event.
Note
Like all static components in the inheritance, the static methods of a superclass exist in all subclasses. A static method is always executed in the class in which it was declared. A static method which is visible from outside can be called using the class component selector, as can all names and classes in which it exists. The class in which it was declared is always the one that is addressed. This has an influence on the execution of the static constructor or on the event handlers.
Continue
CLASS-METHODS - IMPORTING, EXPORTING, CHANGING, RAISING