Test case and fix for #113 (395) : On save @OneToOne does not cascade parent IDs to child node

src/test/java/com/avaje/tests/model/onetoone/OtoChild.java

@@ -0,0 +1,42 @@
+package com.avaje.tests.model.onetoone;
+
+import javax.persistence.Entity;
+import javax.persistence.Id;
+import javax.persistence.OneToOne;
+
+@Entity
+public class OtoChild {
+  
+  @Id
+  Integer id;
+  
+  String name;
+  
+  @OneToOne
+  OtoMaster master;
+
+  public Integer getId() {
+    return id;
+  }
+
+  public void setId(Integer id) {
+    this.id = id;
+  }
+
+  public String getName() {
+    return name;
+  }
+
+  public void setName(String name) {
+    this.name = name;
+  }
+
+  public OtoMaster getMaster() {
+    return master;
+  }
+
+  public void setMaster(OtoMaster master) {
+    this.master = master;
+  }
+  
+}

src/test/java/com/avaje/tests/model/onetoone/OtoMaster.java

@@ -0,0 +1,43 @@
+package com.avaje.tests.model.onetoone;
+
+import javax.persistence.CascadeType;
+import javax.persistence.Entity;
+import javax.persistence.Id;
+import javax.persistence.OneToOne;
+
+@Entity
+public class OtoMaster {
+
+  @Id
+  Long id;
+  
+  String name;
+  
+  @OneToOne(cascade = CascadeType.ALL, mappedBy = "master")
+  OtoChild child;
+
+  public Long getId() {
+    return id;
+  }
+
+  public void setId(Long id) {
+    this.id = id;
+  }
+
+  public String getName() {
+    return name;
+  }
+
+  public void setName(String name) {
+    this.name = name;
+  }
+
+  public OtoChild getChild() {
+    return child;
+  }
+
+  public void setChild(OtoChild child) {
+    this.child = child;
+  }
+
+}

src/test/java/com/avaje/tests/model/onetoone/TestOneToOneCascadeSave.java

@@ -0,0 +1,36 @@
+package com.avaje.tests.model.onetoone;
+
+import org.junit.Assert;
+import org.junit.Test;
+
+import com.avaje.ebean.BaseTestCase;
+import com.avaje.ebean.Ebean;
+
+public class TestOneToOneCascadeSave extends BaseTestCase {
+
+  @Test
+  public void test() {
+    
+   
+    OtoMaster master = new OtoMaster(); 
+    master.setName("CName");
+
+    OtoChild child = new OtoChild();
+    child.setName("OName");
+
+    master.setChild(child);
+    // The parent customer object should be automatically set onto the child
+    // object if it is currently null so you don't need to do the extra
+    // o.setCustomer(c);
+
+    Ebean.save(master);
+
+    Assert.assertNotNull(child.getId());
+    
+    OtoChild child2 = Ebean.find(OtoChild.class, child.getId());
+    OtoMaster master2 = child2.getMaster();
+    Assert.assertNotNull(master2);
+    
+  }
+  
+}