Sync typespec-java core: expose required-fields-as-ctor-args option (typespec#11380)

.chronus/changes/typespec-java-expose-required-fields-as-ctor-args-2026-07-24-11-40-00.md

@@ -0,0 +1,13 @@
+---
+changeKind: fix
+packages:
+  - "@azure-tools/typespec-java"
+---
+
+Expose the `required-fields-as-ctor-args` emitter option in `tspconfig.yaml`. It controls whether required model properties are generated as constructor arguments. The default remains `true`.
+
+```yaml
+options:
+  "@azure-tools/typespec-java":
+    required-fields-as-ctor-args: false
+```

packages/typespec-java/core-commit.json

@@ -1 +1 @@
-{ "sha": "43ff00415eb571c0c9e2d1274f621a61886e4a9b" }
+{ "sha": "ec09e28b3d2990734d1b54ebad85411adb148d12" }

packages/typespec-java/src/options.ts

@@ -110,6 +110,13 @@ export const EmitterOptionsSchema: JSONSchemaType<EmitterOptions> = {
       nullable: true,
       default: true,
     },
+    // "required-fields-as-ctor-args": {
+    //   type: "boolean",
+    //   description:
+    //     "When set to `true`, required properties of the model are generated as constructor arguments; otherwise, they are generated as setter methods. Default value is `true`. This option is for backward-compatibility.",
+    //   nullable: true,
+    //   default: true,
+    // },
 
     // customization
     ...UnbrandedSdkEmitterOptions["generate-protocol-methods"],