SelectorExpression

Selector Expression

Selector expression is an query to select elements in a model file (.mdj).

var repo = app.getModule("core/Repository");
...
var elems1 = repo.select("Package1::@UMLClass.attributes[type=String]");
var elems2 = repo.select("Package1::Model1::@UMLInterface.operations[isAbstract=false]");

Selectors

Name Selector (N)

Select elements which has name specified by N. (equivalent to value selector [name=N])

Examples

• Class1 : "Class1" elements (all element named by "Class1").
• Class1::Attribute1 : all elements named by "Attribute1" only in children of "Class1" element(s).

Children Selector (P::)

Select all child elements of an element P.

Examples

• Package1:: : all children of "Package1" element(s).
• Package1::@UMLClass : all elements of type "UMLClass" only in children of "Package1" element(s).

Type Selector (@T)

Select all elements of type T.

Examples

• @UMLInterface : all elements of type "UMLInterface".
• @UMLClassifier : all elements of type "UMLClassifier". (includes all descendants types: e.g. UMLClass, UMLInterface, UMLEnumeration, ...)
• Package1::@UMLClass : all elements of type "UMLClass" only in children of "Package1" element(s).

Field Selector (.F)

Select all elements contained in field F.

Examples

• Class1.attributes : all attribute elements contained in attributes field of "Class1" element(s).
• Package1.ownedElements : all elements contained in ownedElements field of "Package1" element(s).
• @UMLClass.operations : all operation elements contained in operations field for all elements of type "UMLClass".

Value Selector ([F=V])

Select all elements whose field F has value V.

Examples

• Class1.operations[isAbstract=false] : All non-abstract (isAbstract=false) operations of "Class1" element(s).
• Class1.attributes[isDerived=true] : All derived attribute (isDerived=true) elements of "Class1" element(s).