#115 - Mapping - Add support for @ElementCollection enhancement

Initial support - simple List.

src/main/java/io/ebeaninternal/server/deploy/BaseCollectionHelp.java

@@ -1,11 +1,47 @@
 package io.ebeaninternal.server.deploy;
 
 import io.ebean.bean.BeanCollection;
+import io.ebean.bean.BeanCollectionLoader;
+import io.ebean.bean.EntityBean;
+import io.ebeaninternal.server.text.json.SpiJsonWriter;
 
+import java.io.IOException;
 import java.util.Collection;
 
 abstract class BaseCollectionHelp<T> implements BeanCollectionHelp<T> {
 
+  final BeanPropertyAssocMany<T> many;
+  final BeanDescriptor<T> targetDescriptor;
+  final String propertyName;
+
+  BeanCollectionLoader loader;
+
+  BaseCollectionHelp(BeanPropertyAssocMany<T> many) {
+    this.many = many;
+    this.targetDescriptor = many.getTargetDescriptor();
+    this.propertyName = many.getName();
+  }
+
+   BaseCollectionHelp() {
+    this.many = null;
+    this.targetDescriptor = null;
+    this.propertyName = null;
+  }
+
+  @Override
+  public void setLoader(BeanCollectionLoader loader) {
+    this.loader = loader;
+  }
+
+  @Override
+  public void add(BeanCollection<?> collection, EntityBean bean, boolean withCheck) {
+    if (withCheck) {
+      collection.internalAddWithCheck(bean);
+    } else {
+      collection.internalAdd(bean);
+    }
+  }
+
   @Override
   public Collection underlying(Object value) {
     if (value instanceof BeanCollection) {
@@ -14,4 +50,18 @@ abstract class BaseCollectionHelp<T> implements BeanCollectionHelp<T> {
       return (Collection)value;
     }
   }
+
+  void jsonWriteCollection(SpiJsonWriter ctx, String name, Collection<?> list) throws IOException {
+    if (!list.isEmpty() || ctx.isIncludeEmpty()) {
+      ctx.beginAssocMany(name);
+      for (Object bean : list) {
+        jsonWriteElement(ctx, bean);
+      }
+      ctx.endAssocMany();
+    }
+  }
+
+  void jsonWriteElement(SpiJsonWriter ctx, Object bean) throws IOException {
+    targetDescriptor.jsonWrite(ctx, (EntityBean) bean);
+  }
 }