Add gmlFormat as option for WFS format

externs/olx.js

@@ -1647,6 +1647,12 @@ olx.format.WFSWriteGetFeatureOptions.prototype.maxFeatures;
  */
 olx.format.WFSWriteGetFeatureOptions.prototype.geometryName;
 
+/**
+ * GML format to use within the WFS format.
+ * @type {ol.format.GML|undefined}
+ * @api
+ */
+olx.format.WFSWriteGetFeatureOptions.prototype.gmlFormat;
 
 /**
  * Extent to use for the BBOX filter.

src/ol/format/gml/v2.js

@@ -30,7 +30,7 @@ goog.inherits(ol.format.GML.v2, ol.format.GML);
 
 
 /**
- * @protected
+ * @private
  * @type {string}
  */
 ol.format.GML.v2.schemaLocation_ = 'http://www.opengis.net/gml ' +

src/ol/format/wfsformat.js

@@ -40,6 +40,13 @@ ol.format.WFS = function(opt_options) {
    */
   this.featureNS_ = options.featureNS;
 
+  /**
+   * @private
+   * @type {string}
+   */
+  this.gmlFormat_ = goog.isDef(options.gmlFormat) ?
+      options.gmlFormat : new ol.format.GML();
+
   /**
    * @private
    * @type {string}
@@ -119,7 +126,8 @@ ol.format.WFS.prototype.readFeaturesFromNode = function(node, opt_options) {
       goog.isDef(opt_options) ? opt_options : {}));
   var objectStack = [context];
   var features = ol.xml.pushParseAndPop([],
-      ol.format.GML.FEATURE_COLLECTION_PARSERS, node, objectStack);
+      ol.format.GML.FEATURE_COLLECTION_PARSERS, node,
+      objectStack, this.gmlFormat_);
   if (!goog.isDef(features)) {
     features = [];
   }