1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 | /* Copyright (c) 2006 MetaCarta, Inc., published under a modified BSD license. * See http://svn.openlayers.org/trunk/openlayers/repository-license.txt * for the full text of the license. */ /** * @requires OpenLayers/Util.js * @requires OpenLayers/Style.js */ /** * Class: OpenLayers.Filter * This class represents an OGC Filter. */ OpenLayers.Filter = OpenLayers.Class({ /** * Constructor: OpenLayers.Filter * This is an abstract class. Create an instance of a filter subclass. * * Parameters: * options - {Object} Optional object whose properties will be set on the * instance. * * Returns: * {<OpenLayers.Filter>} */ initialize: function(options) { OpenLayers.Util.extend(this, options); }, /** * APIMethod: destroy * Remove reference to anything added. */ destroy: function() { }, /** * APIMethod: evaluate * Evaluates this filter in a specific context. Should be implemented by * subclasses. * * Parameters: * context - {Object} Context to use in evaluating the filter. * * Returns: * {Boolean} The filter applies. */ evaluate: function(context) { return true; }, /** * APIMethod: clone * Clones this filter. Should be implementted by subclasses. * * Returns: * {<OpenLayers.Filter>} Clone of this filter. */ clone: function() { return null; }, CLASS_NAME: "OpenLayers.Filter" }); |