#115 - Mapping - Add support for @ElementCollection enhancement

Initial support - simple List.

src/main/java/io/ebeaninternal/server/query/STreePropertyAssocMany.java

@@ -0,0 +1,45 @@
+package io.ebeaninternal.server.query;
+
+import io.ebean.bean.BeanCollection;
+import io.ebean.bean.EntityBean;
+import io.ebeaninternal.server.deploy.DbSqlContext;
+import io.ebeaninternal.server.deploy.TableJoin;
+
+public interface STreePropertyAssocMany extends STreePropertyAssoc {
+
+  /**
+   * Append exported columns to the select.
+   */
+  void addSelectExported(DbSqlContext ctx, String prefix);
+
+  /**
+   * Return true if this is a ManyToMany with history.
+   */
+  boolean isManyToManyWithHistory();
+
+  /**
+   * Return a reference collection.
+   */
+  BeanCollection<?> createReferenceIfNull(EntityBean localBean);
+
+  /**
+   * Return true if the property has a join table.
+   */
+  boolean hasJoinTable();
+
+  /**
+   * Return the intersection table join.
+   */
+  TableJoin getIntersectionTableJoin();
+
+  /**
+   * Add a bean to the collection.
+   */
+  void addBeanToCollectionWithCreate(EntityBean contextParent, EntityBean detailBean, boolean withCheck);
+
+  /**
+   * Return true if the property is excluded from history.
+   */
+  boolean isExcludedFromHistory();
+
+}