From 3a7d33147feced4346e7266e8f0317e0c38d229c Mon Sep 17 00:00:00 2001
From: Chris Lu <chrislusf@users.noreply.github.com>
Date: Thu, 6 May 2021 10:51:05 -0700
Subject: [PATCH] Updated SeaweedFS Java Client (markdown)

---
 SeaweedFS-Java-Client.md | 17 +++++++++++++++++
 1 file changed, 17 insertions(+)

diff --git a/SeaweedFS-Java-Client.md b/SeaweedFS-Java-Client.md
index 46b793c..4dd048f 100644
--- a/SeaweedFS-Java-Client.md
+++ b/SeaweedFS-Java-Client.md
@@ -95,4 +95,21 @@ You can also use this API for standard file manipulation: directory listing, fil
   filerClient.rm("/new_folder/new_empty_file", false, true);
   filerClient.rm("/new_folder", true, true);
 
+```
+
+## Advanced Usage
+Sometimes you may need to go deeper. For example, change modification time `mtime`.
+
+```
+  // load existing entry
+  FilerProto.Entry entry = filerClient.lookupEntry("/some/dir","entryName");
+
+  // change the attribute
+  FilerProto.Entry.Builder entryBuilder = FilerProto.Entry.newBuilder(entry);
+  FilerProto.FuseAttributes.Builder attrBuilder = FilerProto.FuseAttributes.newBuilder(entry.getAttributes());
+  attrBuilder.setMtime(...)
+
+  // save the new entry
+  entryBuilder.setAttributes(attrBuilder);
+  filerClient.updateEntry("/some/dir", entryBuilder.build());
 ```
\ No newline at end of file