[WIP] Expose persister fetcher

store/src/main/java/com/nytimes/android/external/store3/base/InternalStore.java

@@ -1,19 +1,34 @@
 package com.nytimes.android.external.store3.base;
 
 import com.nytimes.android.external.store3.base.impl.Store;
-
-import javax.annotation.Nonnull;
-
 import io.reactivex.Maybe;
+import javax.annotation.Nonnull;
+import javax.annotation.Nullable;
 
 /**
-2 * this interface allows us to mark a {@link Store} as "internal", exposing methods for retrieving data
+ * This interface allows us to mark a {@link Store} as "internal", exposing methods for retrieving data
  * directly from memory or from disk.
  */
 public interface InternalStore<Parsed, Key> extends Store<Parsed, Key> {
+
     @Nonnull
     Maybe<Parsed> memory(@Nonnull final Key key);
 
     @Nonnull
     Maybe<Parsed> disk(@Nonnull final Key key);
+
+    /**
+     * @return The given persister for that store.
+     * Or {@link com.nytimes.android.external.store3.util.NoopPersister} if not added.
+     * @see com.nytimes.android.external.store3.base.impl.RealStoreBuilder#persister
+     */
+    @Nonnull
+    Persister<?, Key> persister();
+
+    /**
+     * @return The given fetcher for that store. Or {@code null} if not added.
+     * @see com.nytimes.android.external.store3.base.impl.RealStoreBuilder#fetcher
+     */
+    @Nullable
+    Fetcher<?, Key> fetcher();
 }

store/src/main/java/com/nytimes/android/external/store3/base/impl/RealInternalStore.java

@@ -304,17 +304,15 @@ private void notifyRefresh(@Nonnull Key key) {
         refreshSubject.onNext(key);
     }
 
-    /**
-     * @return DiskDAO that stores and stores <Raw> data
-     */
-    Persister<Raw, Key> persister() {
+    @Nonnull
+    @Override
+    public Persister<Raw, Key> persister() {
         return persister;
     }
 
-    /**
-     *
-     */
-    Fetcher<Raw, Key> fetcher() {
+    @Nullable
+    @Override
+    public Fetcher<Raw, Key> fetcher() {
         return fetcher;
     }
 }