Added a base Model class which implements equals.

core/src/main/java/com/jdbernard/wdiwtlt/db/models/Album.java

@@ -1,10 +1,6 @@
 package com.jdbernard.wdiwtlt.db.models;
 
-import javax.persistence.Entity;
+public class Album extends Model {
-
-@Entity
-public class Album {
-    public int id;
     public String name;
     public Integer trackTotal;
     public Integer year;

core/src/main/java/com/jdbernard/wdiwtlt/db/models/Artist.java

@@ -1,10 +1,6 @@
 package com.jdbernard.wdiwtlt.db.models;
 
-import javax.persistence.Entity;
+public class Artist extends Model {
-
-@Entity
-public class Artist {
-    public int id;
     public String name;
 
     public String toString() { return name; }

core/src/main/java/com/jdbernard/wdiwtlt/db/models/Bookmark.java

@@ -1,10 +1,6 @@
 package com.jdbernard.wdiwtlt.db.models;
 
-import javax.persistence.Entity;
+public class Bookmark extends Model {
-
-@Entity
-public class Bookmark {
-    public int id;
     public String name;
     public int playlistId;
     public int mediaFileId;

core/src/main/java/com/jdbernard/wdiwtlt/db/models/Image.java

@@ -1,10 +1,6 @@
 package com.jdbernard.wdiwtlt.db.models;
 
-import javax.persistence.Entity;
+public class Image extends Model {
-
-@Entity
-public class Image {
-    public int id;
     public String url;
 
     public String toString() { return url; }

core/src/main/java/com/jdbernard/wdiwtlt/db/models/MediaFile.java

@@ -2,14 +2,10 @@ package com.jdbernard.wdiwtlt.db.models;
 
 import java.util.Date;
 
-import javax.persistence.Entity;
+public class MediaFile extends Model {
-
-@Entity
-public class MediaFile {
     public static final String TAG_INFO = "tag info";
     public static final String FILE_LOCATION = "file location";
 
-    public int id;
     public String name;
     public Integer trackNumber;
     public int playCount = 0;

core/src/main/java/com/jdbernard/wdiwtlt/db/models/Model.java

@@ -0,0 +1,15 @@
+package com.jdbernard.wdiwtlt.db.models;
+
+import javax.persistence.Entity;
+
+@Entity
+public class Model {
+    public int id;
+
+    public boolean equals(Object thatObj) {
+        if (thatObj == null) return false;
+        if (!(thatObj instanceof Model)) return false;
+
+        Model that = (Model) thatObj;
+        return this.id == that.id; }
+}

core/src/main/java/com/jdbernard/wdiwtlt/db/models/Playlist.java

@@ -1,11 +1,8 @@
 package com.jdbernard.wdiwtlt.db.models;
 
 import java.util.Date;
-import javax.persistence.Entity;
 
-@Entity
+public class Playlist extends Model {
-public class Playlist {
-    public int id;
     public boolean userCreated;
     public Date lastUsed;
     public String name;

core/src/main/java/com/jdbernard/wdiwtlt/db/models/Tag.java

@@ -1,10 +1,6 @@
 package com.jdbernard.wdiwtlt.db.models;
 
-import javax.persistence.Entity;
+public class Tag extends Model {
-
-@Entity
-public class Tag {
-    public int id;
     public String name;
 
     public String toString() { return name; }