Initial filter package, geometry type filtering only for now

src/ol/filter/filter.js

@@ -0,0 +1,17 @@
+goog.provide('ol.filter.Filter');
+
+goog.require('ol.Feature');
+
+
+
+/**
+ * @interface
+ */
+ol.filter.Filter = function() {};
+
+
+/**
+ * @param {ol.Feature} feature Feature to evaluate.
+ * @return {boolean} The provided feature passes this filter.
+ */
+ol.filter.Filter.prototype.evaluate = function(feature) {};

src/ol/filter/geometryfilter.js

@@ -0,0 +1,47 @@
+goog.provide('ol.filter.Geometry');
+goog.provide('ol.filter.GeometryType');
+
+goog.require('ol.Feature');
+goog.require('ol.filter.Filter');
+goog.require('ol.geom.GeometryType');
+goog.require('ol.geom.LineString');
+goog.require('ol.geom.MultiLineString');
+goog.require('ol.geom.MultiPoint');
+goog.require('ol.geom.MultiPolygon');
+goog.require('ol.geom.Point');
+goog.require('ol.geom.Polygon');
+
+
+
+/**
+ * @constructor
+ * @implements {ol.filter.Filter}
+ * @param {ol.geom.GeometryType} type The geometry type.
+ */
+ol.filter.Geometry = function(type) {
+
+  /**
+   * @type {ol.geom.GeometryType}
+   * @private
+   */
+  this.type_ = type;
+
+};
+
+
+/**
+ * @inheritDoc
+ */
+ol.filter.Geometry.prototype.evaluate = function(feature) {
+  var geometry = feature.getGeometry();
+  return goog.isNull(geometry) ? false : geometry.getType() === this.type_;
+};
+
+
+/**
+ * @return {ol.geom.GeometryType} The geometry type.
+ */
+ol.filter.Geometry.prototype.getType = function() {
+  return this.type_;
+};
+