Merge pull request #1 from Apaq/add-observable-repo

Added ObservableCrudRepository.

package.json

@@ -29,14 +29,15 @@
   ],
   "devDependencies": {
     "esbuild": "^0.12.15",
+    "load-json-file": "^7.0.1",
     "rollup": "^2.52.7",
     "rollup-plugin-dts": "^3.0.2",
     "rollup-plugin-esbuild": "^4.5.0",
     "rollup-plugin-terser": "^7.0.2",
-		"load-json-file": "^7.0.1",
-		"write-json-file": "^5.0.0"
+    "write-json-file": "^5.0.0"
   },
   "dependencies": {
+    "rxjs": "^7.8.1",
     "typescript": "^4.2.3"
   }
-}
+}

src/repository/crud-repository-event.ts

@@ -0,0 +1,15 @@
+
+/**
+ * Interface for events emitted by ObservableCrudRepository.
+ */
+export interface CrudRepositoryEvent {
+    /**
+     * The type of the event.
+     */
+    type: 'Created' | 'Updated' | 'Deleted';
+
+    /**
+     * The id of the entity changed in the repository.
+     */
+    id: string;
+}

src/repository/observable-crud-repository.ts

@@ -0,0 +1,12 @@
+import { Observable } from "rxjs";
+import { CrudRepository } from "./crud-repository";
+import { CrudRepositoryEvent } from "./crud-repository-event";
+
+/**
+ * Interface for Oberservable CrudRepositories. Adds changes observable upon the CrudRepository interface.
+ */
+export interface ObservableCrudRepository<TYPE, IDTYPE> extends CrudRepository<TYPE, IDTYPE> {
+
+    changes: Observable<CrudRepositoryEvent>;
+
+}