Generate typed Java ViewModels and discover declarative registry defaults

2026-11-13 20:06:26 +01:00
parent adf432b98b
commit 8be0aec287
36 changed files with 1123 additions and 17 deletions
@@ -0,0 +1,11 @@
+package fixture.components;
+
+public final class CustomGeneratedPerson extends fixture.generated.GeneratedPersonViewModel {
+  public CustomGeneratedPerson(fixture.model.GeneratedPerson model) {
+    super(model);
+  }
+
+  public String greeting() {
+    return "Hello " + getName();
+  }
+}
@@ -0,0 +1,5 @@
+package fixture.components;
+
+@jakarta.inject.Singleton
+@de.neitzel.fx.view.ViewModelClass(fixture.generated.GeneratedPersonViewModel.class)
+public class GeneratedController {}
@@ -0,0 +1,22 @@
+package fixture.model;
+
+public class GeneratedAddress {
+  private String street = "Generated street";
+  private GeneratedAddress next;
+
+  public String getStreet() {
+    return street;
+  }
+
+  public void setStreet(String v) {
+    street = v;
+  }
+
+  public GeneratedAddress getNext() {
+    return next;
+  }
+
+  public void setNext(GeneratedAddress v) {
+    next = v;
+  }
+}
@@ -0,0 +1,13 @@
+package fixture.model;
+
+public class GeneratedEmployee extends GeneratedPerson {
+  private int salary = 42;
+
+  public int getSalary() {
+    return salary;
+  }
+
+  public void setSalary(int v) {
+    salary = v;
+  }
+}
@@ -0,0 +1,35 @@
+package fixture.model;
+
+public class GeneratedPerson {
+  static {
+    System.setProperty("fixture.generated.initialized", "yes");
+  }
+
+  private String name = "Generated sample";
+  private GeneratedAddress home = new GeneratedAddress();
+  private java.util.List<GeneratedAddress> visits = new java.util.ArrayList<>();
+
+  public String getName() {
+    return name;
+  }
+
+  public void setName(String v) {
+    name = v;
+  }
+
+  public GeneratedAddress getHome() {
+    return home;
+  }
+
+  public void setHome(GeneratedAddress v) {
+    home = v;
+  }
+
+  public java.util.List<GeneratedAddress> getVisits() {
+    return visits;
+  }
+
+  public void setVisits(java.util.List<GeneratedAddress> v) {
+    visits = v;
+  }
+}
@@ -0,0 +1,3 @@
+<?neitzel-model fixture.model.GeneratedPerson?>
+<?import javafx.scene.layout.VBox?><?import javafx.scene.control.TextField?><?import de.neitzel.fx.view.*?>
+<VBox xmlns:fx="http://javafx.com/fxml/1"><fx:define><BindingList><DirectBinding control="name" property="text" path="name" direction="both"/><DirectBinding control="street" property="text" path="home.street" direction="both"/></BindingList></fx:define><TextField fx:id="name"/><TextField fx:id="street"/></VBox>
@@ -0,0 +1,2 @@
+<?neitzel-model fixture.model.GeneratedAddress?><?import javafx.scene.control.TextField?><?import javafx.scene.layout.VBox?><?import de.neitzel.fx.view.*?>
+<VBox xmlns:fx="http://javafx.com/fxml/1"><fx:define><BindingList><DirectBinding control="street" property="text" path="street" direction="both"/></BindingList></fx:define><TextField fx:id="street"/></VBox>
@@ -0,0 +1,3 @@
+<?neitzel-model fixture.model.GeneratedPerson?>
+<?import javafx.scene.layout.VBox?><?import javafx.scene.control.TextField?><?import de.neitzel.fx.view.*?>
+<VBox xmlns:fx="http://javafx.com/fxml/1" fx:controller="fixture.components.GeneratedController"><fx:define><BindingList><DirectBinding control="name" property="text" path="name" direction="both"/><DirectBinding control="street" property="text" path="home.street" direction="both"/></BindingList></fx:define><TextField fx:id="name"/><TextField fx:id="street"/></VBox>
@@ -0,0 +1,109 @@
+package fixture.checks;
+
+import de.neitzel.fx.view.*;
+import de.neitzel.fxdesigner.target.BindingDiscovery;
+import de.neitzel.injection.ApplicationContext;
+import fixture.components.CustomGeneratedPerson;
+import fixture.generated.*;
+import fixture.model.*;
+import java.util.concurrent.*;
+import javafx.application.Platform;
+import javafx.scene.control.TextField;
+
+public final class GeneratedViewModelChecks {
+  public static void run() throws Exception {
+    var loader = GeneratedViewModelChecks.class.getClassLoader();
+    String xml;
+    try (var in = loader.getResourceAsStream("fixture/components/Generated.fxml")) {
+      xml = new String(in.readAllBytes(), java.nio.charset.StandardCharsets.UTF_8);
+    }
+    var metadata = BindingDiscovery.inspect(xml, "home.street", "both", loader);
+    PreviewChecks.check(
+        metadata.viewModel().equals(CustomGeneratedPerson.class.getName()),
+        "Registry discovery default");
+    PreviewChecks.check(
+        metadata.problems().stream().noneMatch(p -> p.severity().equals("ERROR")),
+        "Generated binding validation: " + metadata.problems());
+    PreviewChecks.check(
+        System.getProperty("fixture.generated.initialized") == null,
+        "Registry discovery initialized Model");
+    var ready = new CountDownLatch(1);
+    Platform.startup(
+        () -> {
+          Platform.setImplicitExit(false);
+          ready.countDown();
+        });
+    if (!ready.await(10, TimeUnit.SECONDS)) throw new AssertionError("Toolkit startup");
+    try {
+      PreviewChecks.fx(
+          () -> {
+            var model = new GeneratedPerson();
+            model.getHome().setNext(model.getHome());
+            model.getVisits().add(model.getHome());
+            var context = new ApplicationContext("fixture.components");
+            var view =
+                ViewLoader.load(
+                    loader.getResource("fixture/components/Generated.fxml"), model, context);
+            var vm = (CustomGeneratedPerson) view.getViewModel();
+            PreviewChecks.check(
+                vm.nameProperty() == view.property("name"), "Stored property identity");
+            ((TextField) view.getRoot().lookup("#name")).setText("Typed writeback");
+            PreviewChecks.check(
+                model.getName().equals("Typed writeback") && vm.getName().equals(model.getName()),
+                "Typed writeback");
+            var child = vm.getHome();
+            PreviewChecks.check(child.getNext() == child, "Typed cycle identity");
+            var direct =
+                ViewLoader.load(
+                    loader.getResource("fixture/components/GeneratedAddress.fxml"),
+                    model.getHome(),
+                    context);
+            PreviewChecks.check(direct.getViewModel() == child, "Nested/direct identity");
+            child.setStreet("Changed child");
+            PreviewChecks.check(
+                model.getHome().getStreet().equals("Changed child"), "Child writeback");
+            PreviewChecks.check(
+                vm.getVisits().getFirst() == model.getHome(), "Collection retains Models");
+            var again =
+                ViewLoader.load(
+                    loader.getResource("fixture/components/GeneratedExplicit.fxml"),
+                    model,
+                    context);
+            PreviewChecks.check(
+                again.getViewModel() == vm, "Custom satisfies generated superclass request");
+            var fresh =
+                ViewLoader.load(
+                    loader.getResource("fixture/components/GeneratedExplicit.fxml"),
+                    new GeneratedPerson(),
+                    context);
+            PreviewChecks.check(
+                fresh.getViewModel().getClass() == GeneratedPersonViewModel.class,
+                "Explicit overrides configured default");
+            vm.setHome(null);
+            PreviewChecks.check(
+                model.getHome() == null && vm.getHome() == null, "Null nested writeback");
+            var employee = new GeneratedEmployee();
+            var inherited =
+                ViewLoader.load(
+                    loader.getResource("fixture/components/Generated.fxml"), employee, context);
+            PreviewChecks.check(
+                inherited.getViewModel() instanceof GeneratedEmployeeViewModel,
+                "Most-specific generated default");
+            var evm = (GeneratedEmployeeViewModel) inherited.getViewModel();
+            evm.setSalary(55);
+            evm.setName("Inherited");
+            PreviewChecks.check(
+                employee.getSalary() == 55 && employee.getName().equals("Inherited"),
+                "Inherited typed access");
+            vm.addMessage(new Message(Message.Severity.INFO, "Generated notice", "name"));
+            PreviewChecks.check(
+                view.property("latestMessage").getValue().equals("Generated notice"),
+                "Shared messages");
+            return null;
+          });
+      System.out.println("PASS generated " + PreviewChecks.checks);
+    } finally {
+      Platform.exit();
+    }
+  }
+}
@@ -41,6 +41,10 @@ public final class PreviewChecks {

  public static void main(String[] args) throws Exception {
    String mode = args[0];
+    if (mode.equals("generated")) {
+      GeneratedViewModelChecks.run();
+      return;
+    }
    if (mode.equals("viewmodels")) {
      ViewModelRuntimeChecks.run();
      return;