[enh] Introduce ServiceMethod

Bug: #1628
Signed-off-by: Axel RICHARD <axel.richard@obeo.fr>

Author: AxelRICHARD

CHANGELOG.adoc

@@ -14,6 +14,8 @@
 
 - https://github.com/eclipse-syson/syson/issues/1628[#1628] [services] Introduce new services organization.
 https://doc.mbse-syson.org/syson/main/developer-guide/index.html#services_organization[See the developer guide in the documentation for more details].
+Also introduces new `ServiceMethod` helper class to build AQL service call expressions from type-safe Java method references instead of hardcoded strings.
+- [services] _isActor(Element)_ has been moved from `ViewNodeService` to `ElementQueryService`.
 
 === Dependency update
 
@@ -44,6 +46,7 @@ https://doc.mbse-syson.org/syson/main/developer-guide/index.html#services_organi
 - https://github.com/eclipse-syson/syson/issues/1587[#1587] [diagrams] Handle `ActionUsage` and `ActionDefinition` parameters as graphical border nodes.
 - https://github.com/eclipse-syson/syson/issues/1628[#1628] [services] Introduce new services organization.
 https://doc.mbse-syson.org/syson/main/developer-guide/index.html#services_organization[See the developer guide in the documentation for more details].
+Also introduces new `ServiceMethod` helper class to build AQL service call expressions from type-safe Java method references instead of hardcoded strings.
 - https://github.com/eclipse-syson/syson/issues/1606[#1606] [explorer] Display the _shortName_ of `Elements` as part of the label in the _Explorer_ view.
 
 == v2025.10.0

backend/application/syson-application-configuration/src/main/java/org/eclipse/syson/application/configuration/SysMLv2PropertiesConfigurer.java

@@ -53,10 +53,10 @@
 import org.eclipse.sirius.components.view.widget.reference.ReferenceFactory;
 import org.eclipse.sirius.components.view.widget.reference.ReferenceWidgetDescription;
 import org.eclipse.syson.application.services.DetailsViewService;
-import org.eclipse.syson.form.services.FormMutationAQLService;
-import org.eclipse.syson.form.services.FormQueryAQLService;
-import org.eclipse.syson.model.services.ModelMutationAQLService;
-import org.eclipse.syson.model.services.ModelQueryAQLService;
+import org.eclipse.syson.form.services.aql.FormMutationAQLService;
+import org.eclipse.syson.form.services.aql.FormQueryAQLService;
+import org.eclipse.syson.model.services.aql.ModelMutationAQLService;
+import org.eclipse.syson.model.services.aql.ModelQueryAQLService;
 import org.eclipse.syson.services.UtilService;
 import org.eclipse.syson.sysml.SysmlPackage;
 import org.eclipse.syson.sysml.helper.LabelConstants;

…/services/DiagramMutationAQLService.java …vices/aql/DiagramMutationAQLService.javabackend/services/syson-diagram-services/src/main/java/org/eclipse/syson/diagram/services/DiagramMutationAQLService.java renamed to backend/services/syson-diagram-services/src/main/java/org/eclipse/syson/diagram/services/aql/DiagramMutationAQLService.java backend/services/syson-diagram-services/src/main/java/org/eclipse/syson/diagram/services/DiagramMutationAQLService.java renamed to backend/services/syson-diagram-services/src/main/java/org/eclipse/syson/diagram/services/aql/DiagramMutationAQLService.java

@@ -10,7 +10,7 @@
  * Contributors:
  *     Obeo - initial API and implementation
  *******************************************************************************/
-package org.eclipse.syson.diagram.services;
+package org.eclipse.syson.diagram.services.aql;
 
 /**
  * Entry point for all diagram-related services doing mutations in diagrams and called by AQL expressions in diagram

…ram/services/DiagramQueryAQLService.java …services/aql/DiagramQueryAQLService.javabackend/services/syson-diagram-services/src/main/java/org/eclipse/syson/diagram/services/DiagramQueryAQLService.java renamed to backend/services/syson-diagram-services/src/main/java/org/eclipse/syson/diagram/services/aql/DiagramQueryAQLService.java backend/services/syson-diagram-services/src/main/java/org/eclipse/syson/diagram/services/DiagramQueryAQLService.java renamed to backend/services/syson-diagram-services/src/main/java/org/eclipse/syson/diagram/services/aql/DiagramQueryAQLService.java

@@ -10,7 +10,7 @@
  * Contributors:
  *     Obeo - initial API and implementation
  *******************************************************************************/
-package org.eclipse.syson.diagram.services;
+package org.eclipse.syson.diagram.services.aql;
 
 /**
  * Entry point for all diagram-related services doing queries in diagrams and called by AQL expressions in diagram

…orm/services/FormMutationAQLService.java …services/aql/FormMutationAQLService.javabackend/services/syson-form-services/src/main/java/org/eclipse/syson/form/services/FormMutationAQLService.java renamed to backend/services/syson-form-services/src/main/java/org/eclipse/syson/form/services/aql/FormMutationAQLService.java backend/services/syson-form-services/src/main/java/org/eclipse/syson/form/services/FormMutationAQLService.java renamed to backend/services/syson-form-services/src/main/java/org/eclipse/syson/form/services/aql/FormMutationAQLService.java

@@ -10,7 +10,7 @@
  * Contributors:
  *     Obeo - initial API and implementation
  *******************************************************************************/
-package org.eclipse.syson.form.services;
+package org.eclipse.syson.form.services.aql;
 
 /**
  * Entry point for all form-related services doing mutations in forms and called by AQL expressions in form

…n/form/services/FormQueryAQLService.java …rm/services/aql/FormQueryAQLService.javabackend/services/syson-form-services/src/main/java/org/eclipse/syson/form/services/FormQueryAQLService.java renamed to backend/services/syson-form-services/src/main/java/org/eclipse/syson/form/services/aql/FormQueryAQLService.java backend/services/syson-form-services/src/main/java/org/eclipse/syson/form/services/FormQueryAQLService.java renamed to backend/services/syson-form-services/src/main/java/org/eclipse/syson/form/services/aql/FormQueryAQLService.java

@@ -10,7 +10,7 @@
  * Contributors:
  *     Obeo - initial API and implementation
  *******************************************************************************/
-package org.eclipse.syson.form.services;
+package org.eclipse.syson.form.services.aql;
 
 /**
  * Entry point for all form-related services doing queries in forms and called by AQL expressions in form descriptions.

…el/services/ModelMutationAQLService.java …ervices/aql/ModelMutationAQLService.javabackend/services/syson-model-services/src/main/java/org/eclipse/syson/model/services/ModelMutationAQLService.java renamed to backend/services/syson-model-services/src/main/java/org/eclipse/syson/model/services/aql/ModelMutationAQLService.java backend/services/syson-model-services/src/main/java/org/eclipse/syson/model/services/ModelMutationAQLService.java renamed to backend/services/syson-model-services/src/main/java/org/eclipse/syson/model/services/aql/ModelMutationAQLService.java

@@ -10,7 +10,7 @@
  * Contributors:
  *     Obeo - initial API and implementation
  *******************************************************************************/
-package org.eclipse.syson.model.services;
+package org.eclipse.syson.model.services.aql;
 
 /**
  * Entry point for all model-related services doing mutations in models and called by AQL expressions in representation

…model/services/ModelQueryAQLService.java …l/services/aql/ModelQueryAQLService.javabackend/services/syson-model-services/src/main/java/org/eclipse/syson/model/services/ModelQueryAQLService.java renamed to backend/services/syson-model-services/src/main/java/org/eclipse/syson/model/services/aql/ModelQueryAQLService.java backend/services/syson-model-services/src/main/java/org/eclipse/syson/model/services/ModelQueryAQLService.java renamed to backend/services/syson-model-services/src/main/java/org/eclipse/syson/model/services/aql/ModelQueryAQLService.java

@@ -10,7 +10,10 @@
  * Contributors:
  *     Obeo - initial API and implementation
  *******************************************************************************/
-package org.eclipse.syson.model.services;
+package org.eclipse.syson.model.services.aql;
+
+import org.eclipse.syson.sysml.Element;
+import org.eclipse.syson.sysml.metamodel.services.ElementQueryService;
 
 /**
  * Entry point for all model-related services doing queries in models and called by AQL expressions in representation
@@ -20,4 +23,16 @@
  */
 public class ModelQueryAQLService {
 
+    private final ElementQueryService elementQueryService;
+
+    public ModelQueryAQLService() {
+        this.elementQueryService = new ElementQueryService();
+    }
+
+    /**
+     * {@link ElementQueryService#isActor(Element)}.
+     */
+    public boolean isActor(Element element) {
+        return this.elementQueryService.isActor(element);
+    }
 }

…es/RepresentationMutationAQLService.java …ql/RepresentationMutationAQLService.javabackend/services/syson-representation-services/src/main/java/org/eclipse/syson/representation/services/RepresentationMutationAQLService.java renamed to backend/services/syson-representation-services/src/main/java/org/eclipse/syson/representation/services/aql/RepresentationMutationAQLService.java backend/services/syson-representation-services/src/main/java/org/eclipse/syson/representation/services/RepresentationMutationAQLService.java renamed to backend/services/syson-representation-services/src/main/java/org/eclipse/syson/representation/services/aql/RepresentationMutationAQLService.java

@@ -10,7 +10,7 @@
  * Contributors:
  *     Obeo - initial API and implementation
  *******************************************************************************/
-package org.eclipse.syson.representation.services;
+package org.eclipse.syson.representation.services.aql;
 
 /**
  * Entry point for all representation-related services doing mutations in representations and called by AQL expressions

…vices/RepresentationQueryAQLService.java …s/aql/RepresentationQueryAQLService.javabackend/services/syson-representation-services/src/main/java/org/eclipse/syson/representation/services/RepresentationQueryAQLService.java renamed to backend/services/syson-representation-services/src/main/java/org/eclipse/syson/representation/services/aql/RepresentationQueryAQLService.java backend/services/syson-representation-services/src/main/java/org/eclipse/syson/representation/services/RepresentationQueryAQLService.java renamed to backend/services/syson-representation-services/src/main/java/org/eclipse/syson/representation/services/aql/RepresentationQueryAQLService.java

@@ -10,7 +10,7 @@
  * Contributors:
  *     Obeo - initial API and implementation
  *******************************************************************************/
-package org.eclipse.syson.representation.services;
+package org.eclipse.syson.representation.services.aql;
 
 /**
  * Entry point for all representation-related services doing queries in representations and called by AQL expressions in