Add ability to chain ERXSortOrderings in addition to ERXSortOrdering

Frameworks/Core/ERExtensions/Sources/er/extensions/eof/ERXSortOrdering.java

@@ -70,6 +70,20 @@ public ERXSortOrderings then(EOSortOrdering nextSortOrdering) {
 		return sortOrderings;
 	}
 
+	/**
+	 * Returns ERXSortOrderings with this sort ordering followed by the provided
+	 * array of next sort orderings.
+	 * 
+	 * @param nextSortOrderings
+	 *            the next sort orderings to chain to this
+	 * @return an array of sort orderings
+	 * @author David Avendasora
+	 */
+	public ERXSortOrderings then(NSArray<EOSortOrdering> nextSortOrderings) {
+		array().insertObjectAtIndex(this, 0);
+		return array();
+	}
+
 	/**
 	 * Returns this sort ordering as an array.
 	 * 
@@ -202,6 +216,19 @@ public ERXSortOrderings then(EOSortOrdering nextSortOrdering) {
 			return this;
 		}
 
+		/**
+		 * Adds the given sort orderings to the end of this list and returns
+		 * "this" so it can be chained again.
+		 * 
+		 * @param nextSortOrderings the sort ordering to add
+		 * @return this (with the sort orderings appended)
+		 * @author David Avendasora
+		 */
+		public ERXSortOrderings then(ERXSortOrderings nextSortOrderings) {
+			addObjectsFromArray(nextSortOrderings);
+			return this;
+		}
+
 		/**
 		 * Returns an array sorted with this sort ordering.
 		 *