#115 - Mapping - Add support for @ElementCollection enhancement

Initial support - add simple Set support and Json support for simple List and Set.

src/test/java/org/tests/model/elementcollection/TestElementCollectionBasicSet.java

@@ -0,0 +1,59 @@
+package org.tests.model.elementcollection;
+
+import io.ebean.BaseTestCase;
+import io.ebean.Ebean;
+import org.junit.Test;
+
+import java.util.List;
+import java.util.Set;
+
+import static org.assertj.core.api.Assertions.assertThat;
+
+public class TestElementCollectionBasicSet extends BaseTestCase {
+
+  @Test
+  public void test() {
+
+    EcsPerson person = new EcsPerson("Fiona021");
+    person.getPhoneNumbers().add("021 1234");
+    person.getPhoneNumbers().add("021 4321");
+    Ebean.save(person);
+
+
+    EcsPerson person1 = new EcsPerson("Fiona09");
+    person1.getPhoneNumbers().add("09 1234");
+    person1.getPhoneNumbers().add("09 4321");
+    person1.getPhoneNumbers().add("09 9876");
+    Ebean.save(person1);
+
+    List<EcsPerson> found =
+      Ebean.find(EcsPerson.class).where()
+        .startsWith("name", "Fiona0")
+        .order().asc("id")
+        .findList();
+
+    Set<String> phoneNumbers0 = found.get(0).getPhoneNumbers();
+    Set<String> phoneNumbers1 = found.get(1).getPhoneNumbers();
+    phoneNumbers0.size();
+
+    assertThat(phoneNumbers0).containsExactly("021 1234", "021 4321");
+    assertThat(phoneNumbers1).containsExactly("09 1234", "09 4321", "09 9876");
+
+
+    List<EcsPerson> found2 =
+      Ebean.find(EcsPerson.class)
+        .fetch("phoneNumbers")
+        .where()
+        .startsWith("name", "Fiona0")
+        .order().asc("id")
+        .findList();
+
+    assertThat(found2).hasSize(2);
+    EcsPerson foundFirst = found2.get(0);
+    String asJson = Ebean.json().toJson(foundFirst);
+
+    EcsPerson fromJson = Ebean.json().toBean(EcsPerson.class, asJson);
+
+    assertThat(fromJson.getPhoneNumbers()).containsAll(foundFirst.getPhoneNumbers());
+  }
+}