Undocumented property 'filter' in Layer.Vector assumed in BBOX Strategy, initial patch from rdewit, no functional change (closes #2061)

git-svn-id: http://svn.openlayers.org/trunk/openlayers@9567 dc9f47b5-9b13-0410-9fdd-eb0c1a62fdaf

lib/OpenLayers/Layer/Vector.js

@@ -130,6 +130,14 @@ OpenLayers.Layer.Vector = OpenLayers.Class(OpenLayers.Layer, {
      */
     features: null,
     
+    /** 
+     * Property: filter
+     * {<OpenLayers.Filter>} The filter set in this layer,
+     *     a strategy launching read requests can combined
+     *     this filter with its own filter.
+     */
+    filter: null,
+    
     /** 
      * Property: selectedFeatures
      * {Array(<OpenLayers.Feature.Vector>)} 

lib/OpenLayers/Strategy/BBOX.js

@@ -217,7 +217,10 @@ OpenLayers.Strategy.BBOX = OpenLayers.Class(OpenLayers.Strategy, {
  
     /**
      * Method: createFilter
-     *
+     * Creates a spatial BBOX filter. If the layer that this strategy belongs
+     * to has a filter property, this filter will be combined with the BBOX 
+     * filter.
+     * 
      * Returns
      * {<OpenLayers.Filter>} The filter object.
      */