Cache: expose transformBuilder

Author: dgeb

addon/-private/cache.ts

@@ -8,7 +8,8 @@ import Orbit, {
   RecordOperation,
   Record,
   KeyMap,
-  Schema
+  Schema,
+  TransformBuilder
 } from '@orbit/data';
 import { QueryResultData } from '@orbit/record-cache';
 import { MemoryCache } from '@orbit/memory';
@@ -58,6 +59,10 @@ export default class Cache {
     return this._sourceCache.schema;
   }
 
+  get transformBuilder(): TransformBuilder {
+    return this._sourceCache.transformBuilder;
+  }
+
   /**
    * @deprecated
    */

tests/integration/cache-test.js

@@ -18,9 +18,10 @@ module('Integration - Cache', function(hooks) {
     cache = null;
   });
 
-  test('exposes keyMap and schema', function(assert) {
+  test('exposes properties from underlying MemoryCache', function(assert) {
     assert.strictEqual(cache.keyMap, store.source.keyMap);
     assert.strictEqual(cache.schema, store.source.schema);
+    assert.strictEqual(cache.transformBuilder, store.source.transformBuilder);
   });
 
   test('liveQuery - adds record that becomes a match', async function(assert) {