Implemented playlist

app/src/main/java/com/cappielloantonio/play/model/PlaylistSongCross.java

@@ -0,0 +1,49 @@
+package com.cappielloantonio.play.model;
+
+import androidx.annotation.NonNull;
+import androidx.room.ColumnInfo;
+import androidx.room.Entity;
+import androidx.room.PrimaryKey;
+
+@Entity(tableName = "playlist_song_cross")
+public class PlaylistSongCross {
+    @NonNull
+    @PrimaryKey(autoGenerate = true)
+    @ColumnInfo(name = "id")
+    private int id;
+
+    @ColumnInfo(name = "playlist_id")
+    private String playlistId;
+
+    @ColumnInfo(name = "song_id")
+    private String songId;
+
+    public PlaylistSongCross(String playlistId, String songId) {
+        this.playlistId = playlistId;
+        this.songId = songId;
+    }
+
+    public int getId() {
+        return id;
+    }
+
+    public void setId(int id) {
+        this.id = id;
+    }
+
+    public String getPlaylistId() {
+        return playlistId;
+    }
+
+    public void setPlaylistId(String playlistId) {
+        this.playlistId = playlistId;
+    }
+
+    public String getSongId() {
+        return songId;
+    }
+
+    public void setSongId(String songId) {
+        this.songId = songId;
+    }
+}