Rule is filter and symbolizer, style is collection of rules

src/ol/style/rule.js

@@ -0,0 +1,34 @@
+goog.provide('ol.style.Rule');
+
+goog.require('ol.filter.Filter');
+goog.require('ol.style.Symbolizer');
+
+
+/**
+ * @typedef {{filter: (ol.filter.Filter),
+ *            symbolizers: (Array.<ol.style.Symbolizer>)}}
+ */
+ol.style.RuleOptions;
+
+
+
+/**
+ * @constructor
+ * @param {ol.style.RuleOptions} options Rule options.
+ */
+ol.style.Rule = function(options) {
+
+  /**
+   * @type {ol.filter.Filter}
+   * @private
+   */
+  this.filter_ = goog.isDef(options.filter) ? options.filter : null;
+
+  /**
+   * @type {Array.<ol.style.Symbolizer>}
+   * @private
+   */
+  this.symbolizers_ = goog.isDef(options.symbolizers) ?
+      options.symbolizers : [];
+
+};

src/ol/style/style.js

@@ -0,0 +1,25 @@
+goog.provide('ol.style.Style');
+
+goog.require('ol.style.Rule');
+
+
+/**
+ * @typedef {{rules: (Array.<ol.style.Rule>)}}
+ */
+ol.style.StyleOptions;
+
+
+
+/**
+ * @constructor
+ * @param {ol.style.StyleOptions} options Style options.
+ */
+ol.style.Style = function(options) {
+
+  /**
+   * @type {Array.<ol.style.Rule>}
+   * @private
+   */
+  this.rules_ = goog.isDef(options.rules) ? options.rules : [];
+
+};

src/ol/style/symbolizer.js

@@ -1,4 +1,7 @@
 goog.provide('ol.style.LiteralSymbolizer');
+goog.provide('ol.style.Symbolizer');
+
+goog.require('ol.Feature');
 
 
 
@@ -6,3 +9,17 @@ goog.provide('ol.style.LiteralSymbolizer');
  * @interface
  */
 ol.style.LiteralSymbolizer = function() {};
+
+
+
+/**
+ * @interface
+ */
+ol.style.Symbolizer = function() {};
+
+
+/**
+ * @param {ol.Feature} feature Feature for evaluating expressions.
+ * @return {ol.style.LiteralSymbolizer} Literal symbolizer.
+ */
+ol.style.Symbolizer.prototype.createLiteral = function(feature) {};