Concept:
Model field
Headline
Model fields are used in Language:JML to represent values
Description
In Language:JML model fields are used to "assign" an existing value to it or to add some variables to a model of the type JMLDatagroup to make the assignable function more easily. When the model field gets an assigned vaue it is updating it constantly in runtime. It gets initialized in the following way:
//@ <visibility> model <Type of the field> <name>;
Illustration
Here we will give a short introduction in the use of model fields. For an advanced use take a look at the Contribution:JML Specs.
- Using a model field to represent a value, by using the "represent"-clause. Note that it is easy to change the visibility of an private variable to public by using a model field:
//Initialization of salary as an private variable
private int salary = 200;
//Initialization of the model field "mainSalary"
//@ public model Int mainSalary;
//Value sync of mainSalary to salary
//@ private represents mainSalary = salary
- Using a model field as an sort of a Datagroup. Variables are able to be "added" to an Datagroup by using the special "in" keyword directly after the initialisation of the variable. So this Datagroup can easily be used in a assignable-clause instead of all of the variables separately
//Initialization of the specail "JMLDataGroup"
//@ public model JMLDataGroup allEmployees;
//Initialization of the variables //Adding an element to the Datagroup
public employee mentor; //@ in allEmployees
public List<Employee> mentees; //@ in allEmployees
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