X-Git-Url: https://git.pterodactylus.net/?a=blobdiff_plain;f=src%2Fmain%2Fjava%2Fnet%2Fpterodactylus%2Fsone%2Fdata%2FPostReply.java;h=d010261b4f5ba0fc95944636229835ab29e80cbb;hb=c8897b270214c5e3c1e0c5cd4db9ac1821bfbde0;hp=3dd0a1491e8e6c2a030226d61044a16350d26828;hpb=83ceb7c20927ae3cd9eb12d8d885462ac66ea6a4;p=Sone.git

diff --git a/src/main/java/net/pterodactylus/sone/data/PostReply.java b/src/main/java/net/pterodactylus/sone/data/PostReply.java
index 3dd0a14..d010261 100644
--- a/src/main/java/net/pterodactylus/sone/data/PostReply.java
+++ b/src/main/java/net/pterodactylus/sone/data/PostReply.java
@@ -17,6 +17,9 @@
 
 package net.pterodactylus.sone.data;
 
+import com.google.common.base.Optional;
+import com.google.common.base.Predicate;
+
 /**
  * A reply is like a {@link Post} but can never be posted on its own, it always
  * refers to another {@link Post}.
@@ -26,10 +29,29 @@ package net.pterodactylus.sone.data;
 public interface PostReply extends Reply<PostReply> {
 
 	/**
+	 * Filter that selects {@link PostReply}s that have a
+	 * {@link Optional#isPresent() present} {@link #getPost() post}.
+	 */
+	public static final Predicate<PostReply> HAS_POST_FILTER = new Predicate<PostReply>() {
+
+		@Override
+		public boolean apply(PostReply postReply) {
+			return (postReply != null) && postReply.getPost().isPresent();
+		}
+	};
+
+	/**
+	 * Returns the ID of the post this reply refers to.
+	 *
+	 * @return The ID of the post this reply refers to
+	 */
+	public String getPostId();
+
+	/**
 	 * Returns the post this reply refers to.
 	 *
 	 * @return The post this reply refers to
 	 */
-	public Post getPost();
+	public Optional<Post> getPost();
 
 }