From b7fe6c0d585b198a3a1d214e788daf69e25bd98c Mon Sep 17 00:00:00 2001
From: Steve Ebersole <steve@hibernate.org>
Date: Mon, 18 Jul 2011 14:41:56 -0500
Subject: [PATCH] HHH-6398 - Create @DynamicUpdate annotation

---
 .../hibernate/annotations/DynamicUpdate.java  | 44 +++++++++++++++++++
 .../org/hibernate/annotations/Entity.java     |  5 ++-
 2 files changed, 48 insertions(+), 1 deletion(-)
 create mode 100644 hibernate-core/src/main/java/org/hibernate/annotations/DynamicUpdate.java

diff --git a/hibernate-core/src/main/java/org/hibernate/annotations/DynamicUpdate.java b/hibernate-core/src/main/java/org/hibernate/annotations/DynamicUpdate.java
new file mode 100644
index 0000000000..1d1097b88d
--- /dev/null
+++ b/hibernate-core/src/main/java/org/hibernate/annotations/DynamicUpdate.java
@@ -0,0 +1,44 @@
+/*
+ * Hibernate, Relational Persistence for Idiomatic Java
+ *
+ * Copyright (c) 2011, Red Hat Inc. or third-party contributors as
+ * indicated by the @author tags or express copyright attribution
+ * statements applied by the authors.  All third-party contributions are
+ * distributed under license by Red Hat Inc.
+ *
+ * This copyrighted material is made available to anyone wishing to use, modify,
+ * copy, or redistribute it subject to the terms and conditions of the GNU
+ * Lesser General Public License, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
+ * or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU Lesser General Public License
+ * for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with this distribution; if not, write to:
+ * Free Software Foundation, Inc.
+ * 51 Franklin Street, Fifth Floor
+ * Boston, MA  02110-1301  USA
+ */
+package org.hibernate.annotations;
+
+import java.lang.annotation.Retention;
+import java.lang.annotation.Target;
+
+import static java.lang.annotation.ElementType.TYPE;
+import static java.lang.annotation.RetentionPolicy.RUNTIME;
+
+/**
+ * For updating, should this entity use dynamic sql generation where only changed columns get referenced in the
+ * prepared sql statement?
+ * <p/>
+ * Note, for re-attachment of detached entities this is not possible without select-for-update being enabled.
+ *
+ * @author Steve Ebersole
+ */
+@Target( TYPE )
+@Retention( RUNTIME )
+public @interface DynamicUpdate {
+	boolean value() default true;
+}
diff --git a/hibernate-core/src/main/java/org/hibernate/annotations/Entity.java b/hibernate-core/src/main/java/org/hibernate/annotations/Entity.java
index 1a4a4874d1..a3ee8eecda 100644
--- a/hibernate-core/src/main/java/org/hibernate/annotations/Entity.java
+++ b/hibernate-core/src/main/java/org/hibernate/annotations/Entity.java
@@ -48,7 +48,10 @@ public @interface Entity {
 	 * @deprecated use {@link DynamicInsert} instead
 	 */
 	boolean dynamicInsert() default false;
-	/** Needed column only in SQL on update */
+	/**
+	 * Needed column only in SQL on update
+	 * @deprecated Use {@link DynamicUpdate} instead
+	 */
 	boolean dynamicUpdate() default false;
 	/** Do a select to retrieve the entity before any potential update */
 	boolean selectBeforeUpdate() default false;