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Version: 4.x

BEFORE statement

The BEFORE statement calls an action before calling another action.

Syntax​

BEFORE action(param1, ..., paramN) DO aspectAction;

Description​

The BEFORE statement defines an action (let's call it an aspect) that will be called before the specified one.

Parameters​

  • action

    The ID of the action before which the aspect will be called.

  • param1, ..., paramN

    List of action parameter names. Each name is defined by a simple ID. These parameters can be accessed while defining an aspect.

  • aspectAction

    A context-dependent action operator describing the aspect.

Examples​

changeName(Sku s, STRING[100] name)  { name(s) <- name; }

// The message will be shown before each call to changeName
BEFORE changeName(Sku s, STRING[100] name) DO MESSAGE 'Changing user name';