Add documentation for updatedName and updatedPosition fields in LikeB…

…inding

Closes spring-projects#1929

spring-data-jpa/src/main/java/org/springframework/data/jpa/repository/query/StringQuery.java

@@ -812,14 +812,28 @@ public Type getType() {
 			return type;
 		}
 
+		/**
+		 * Returns the Updated Position of the binding in the query.
+		 *
+		 * @return the updated position
+		 */
 		public Integer getUpdatedPosition() {
 			return updatedPosition;
 		}
 
+		/**
+		 * Returns the Updated Name of the binding in the query.
+		 *
+		 * @return the updated name
+		 */
 		public String getUpdatedName() {
 			return updatedName;
 		}
 
+		/**
+		 * Check if the bindings updated name is equal to the provided name.
+		 *
+		 */
 		boolean hasUpdatedName(@Nullable String name) {
 			return this.updatedPosition == null && this.updatedName != null && this.updatedName.equals(name);
 		}