Add function that transforms a post into its replies.

[Sone.git] / src / main / java / net / pterodactylus / sone / data / Post.java

diff --git a/src/main/java/net/pterodactylus/sone/data/Post.java b/src/main/java/net/pterodactylus/sone/data/Post.java
index 145170d..20bf518 100644 (file)
--- a/src/main/java/net/pterodactylus/sone/data/Post.java
+++ b/src/main/java/net/pterodactylus/sone/data/Post.java
@@ -17,9 +17,11 @@
 
 package net.pterodactylus.sone.data;
 
+import java.util.Collections;
 import java.util.Comparator;
 import java.util.List;
 
+import com.google.common.base.Function;
 import com.google.common.base.Optional;
 import com.google.common.base.Predicate;
 
@@ -51,6 +53,13 @@ public interface Post extends Identified {
 
        };
 
+       public static final Function<Post, List<PostReply>> TO_REPLIES = new Function<Post, List<PostReply>>() {
+               @Override
+               public List<PostReply> apply(Post post) {
+                       return (post == null) ? Collections.<PostReply>emptyList() : post.getReplies();
+               }
+       };
+
        //
        // ACCESSORS
        //