OAK-11934 - segment prefetching for segmentstore cache

- add getTarFiles method missed in the previous commit

Author: jsedding

oak-segment-tar/src/main/java/org/apache/jackrabbit/oak/segment/file/AbstractFileStore.java

@@ -194,7 +194,7 @@ public SegmentReader getReader() {
     public SegmentIdProvider getSegmentIdProvider() {
         return tracker;
     }
-    
+
     public int getBinariesInlineThreshold() {
         return binariesInlineThreshold;
     }
@@ -204,6 +204,13 @@ public int getBinariesInlineThreshold() {
      */
     public abstract Revisions getRevisions();
 
+    /**
+     * Access to the tar files managed by subclasses.
+     *
+     * @return the tar files
+     */
+    protected abstract @NotNull TarFiles getTarFiles();
+
     /**
      * Convenience method for accessing the root node for the current head.
      * This is equivalent to

oak-segment-tar/src/main/java/org/apache/jackrabbit/oak/segment/file/FileStore.java

@@ -470,6 +470,11 @@ public TarRevisions getRevisions() {
         }
     }
 
+    @Override
+    protected @NotNull TarFiles getTarFiles() {
+        return tarFiles;
+    }
+
     @Override
     public void close() {
         try (ShutDownCloser ignored = shutDown.shutDown()) {

oak-segment-tar/src/main/java/org/apache/jackrabbit/oak/segment/file/ReadOnlyFileStore.java

@@ -171,6 +171,11 @@ public ReadOnlyRevisions getRevisions() {
         return revisions;
     }
 
+    @Override
+    protected @NotNull TarFiles getTarFiles() {
+        return tarFiles;
+    }
+
     public Set<SegmentId> getReferencedSegmentIds() {
         return tracker.getReferencedSegmentIds();
     }