Add test - self referencing relationships: ResourceFile

src/test/java/com/avaje/tests/model/selfref/BaseResourceFile.java

@@ -0,0 +1,33 @@
+package com.avaje.tests.model.selfref;
+
+import java.util.UUID;
+
+import javax.persistence.Column;
+import javax.persistence.Id;
+import javax.persistence.MappedSuperclass;
+
+@MappedSuperclass
+public abstract class BaseResourceFile {
+  
+  private static final long serialVersionUID = 1L;
+
+  @Id
+  @Column(name = "id", nullable = false, length = 64)
+  private String id;
+
+  public BaseResourceFile() {
+    this.id = newId();
+  }
+
+  public String getId() {
+    return id;
+  }
+
+  protected void setId(String id) {
+    this.id = id;
+  }
+
+  protected String newId() {
+    return UUID.randomUUID().toString();
+  }
+}