diff --git a/src/main/java/com/messners/gitlab/api/models/Branch.java b/src/main/java/com/messners/gitlab/api/models/Branch.java
index e55f52590526114e9663b8014561985ef6a1bd0a..6e6d2433f7338679a1a8ac5c2a0c3835a38ac68a 100644
--- a/src/main/java/com/messners/gitlab/api/models/Branch.java
+++ b/src/main/java/com/messners/gitlab/api/models/Branch.java
@@ -36,4 +36,8 @@ public class Branch {
 	public void setProtected (Boolean isProtected) {
 		this.isProtected = isProtected;
 	}
+	
+	public static final boolean isValid (Branch branch) {
+		return (branch != null && branch.getName() != null);
+	}
 }
diff --git a/src/main/java/com/messners/gitlab/api/models/MergeRequest.java b/src/main/java/com/messners/gitlab/api/models/MergeRequest.java
index 02d844f6c1c79bb1f67f2ad01daa7dd04389eb17..821fd8880cd149618210a7a7ea61a388ea925a92 100644
--- a/src/main/java/com/messners/gitlab/api/models/MergeRequest.java
+++ b/src/main/java/com/messners/gitlab/api/models/MergeRequest.java
@@ -107,4 +107,8 @@ public class MergeRequest {
 	public void setUpvotes (Integer upvotes) {
 		this.upvotes = upvotes;
 	}
+	
+	public static final boolean isValid (MergeRequest mergeRequest) {
+		return (mergeRequest != null && mergeRequest.getId() != null);
+	}
 }
diff --git a/src/main/java/com/messners/gitlab/api/models/Project.java b/src/main/java/com/messners/gitlab/api/models/Project.java
index 4868dd588c071cdcb57b8f2b1299a4e9c7e28a65..8f6ed1357417cb62475e85d3742d9eb2cfed6b32 100644
--- a/src/main/java/com/messners/gitlab/api/models/Project.java
+++ b/src/main/java/com/messners/gitlab/api/models/Project.java
@@ -201,4 +201,8 @@ public class Project {
 	public void setWikiEnabled (Boolean wikiEnabled) {
 		this.wikiEnabled = wikiEnabled;
 	}
+	
+	public static final boolean isValid (Project project) {
+		return (project != null && project.getId() != null);
+	}
 }
diff --git a/src/main/java/com/messners/gitlab/api/models/User.java b/src/main/java/com/messners/gitlab/api/models/User.java
index 04b7c61d0944d69195b3f2b85fb389824518a9f7..4535e6187db065dc7125503fa4dc149a2803813c 100644
--- a/src/main/java/com/messners/gitlab/api/models/User.java
+++ b/src/main/java/com/messners/gitlab/api/models/User.java
@@ -163,4 +163,8 @@ public class User {
 	public void setWebsiteUrl (String websiteUrl) {
 		this.websiteUrl = websiteUrl;
 	}
+	
+	public static final boolean isValid (User user) {
+		return (user != null && user.getId() != null);
+	}
 }