#641 - ENH: Add EbeanServer.setBeanId(bean, id) ... to make it easy to convert id value to appropriate type and set

src/main/java/com/avaje/ebean/EbeanServer.java

@@ -146,6 +146,17 @@ public interface EbeanServer {
    */
   Object getBeanId(Object bean);
 
+  /**
+   * Set the Id value onto the bean converting the type of the id value if necessary.
+   * <p>
+   * For example, if the id value passed in is a String but ought to be a Long or UUID etc
+   * then it will automatically be converted.
+   * </p>
+   *  @param bean The entity bean to set the id value on.
+   * @param id   The id value to set.
+   */
+  Object setBeanId(Object bean, Object id);
+
   /**
    * Return a map of the differences between two objects of the same type.
    * <p>

src/main/java/com/avaje/ebeaninternal/server/core/DefaultServer.java

@@ -1957,14 +1957,23 @@ public final class DefaultServer implements SpiServer, SpiEbeanServer {
     return typeInfo != null && getBeanDescriptor(typeInfo.getBeanType()) != null;
   }
 
+  @Override
+  public Object setBeanId(Object bean, Object id) {
+    EntityBean eb = checkEntityBean(bean);
+    BeanDescriptor<?> desc = getBeanDescriptor(bean.getClass());
+    if (desc == null) {
+      throw new PersistenceException(bean.getClass().getName() + " is NOT an Entity Bean registered with this server?");
+    }
+    return desc.convertSetId(id, eb);
+  }
+
+  @Override
   public Object getBeanId(Object bean) {
     EntityBean eb = checkEntityBean(bean);
     BeanDescriptor<?> desc = getBeanDescriptor(bean.getClass());
     if (desc == null) {
-      String m = bean.getClass().getName() + " is NOT an Entity Bean registered with this server?";
-      throw new PersistenceException(m);
+      throw new PersistenceException(bean.getClass().getName() + " is NOT an Entity Bean registered with this server?");
     }
-
     return desc.getId(eb);
   }