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/* Copyright (c) 2006-2013 by OpenLayers Contributors (see authors.txt for
* full list of contributors). Published under the 2-clause BSD license.
* See license.txt in the OpenLayers distribution or repository for the
* full text of the license. */
/**
* @requires OpenLayers/Filter.js
*/
/**
* Class: OpenLayers.Filter.FeatureId
* This class represents a ogc:FeatureId Filter, as being used for rule-based SLD
* styling
*
* Inherits from:
* - <OpenLayers.Filter>
*/
OpenLayers.Filter.FeatureId = OpenLayers.Class(OpenLayers.Filter, {
/**
* APIProperty: fids
* {Array(String)} Feature Ids to evaluate this rule against.
* To be passed inside the params object.
*/
fids: null,
/**
* Property: type
* {String} Type to identify this filter.
*/
type: "FID",
/**
* Constructor: OpenLayers.Filter.FeatureId
* Creates an ogc:FeatureId rule.
*
* Parameters:
* options - {Object} An optional object with properties to set on the
* rule
*
* Returns:
* {<OpenLayers.Filter.FeatureId>}
*/
initialize: function(options) {
this.fids = [];
OpenLayers.Filter.prototype.initialize.apply(this, [options]);
},
/**
* APIMethod: evaluate
* evaluates this rule for a specific feature
*
* Parameters:
* feature - {<OpenLayers.Feature>} feature to apply the rule to.
* For vector features, the check is run against the fid,
* for plain features against the id.
*
* Returns:
* {Boolean} true if the rule applies, false if it does not
*/
evaluate: function(feature) {
for (var i=0, len=this.fids.length; i<len; i++) {
var fid = feature.fid || feature.id;
if (fid == this.fids[i]) {
return true;
}
}
return false;
},
/**
* APIMethod: clone
* Clones this filter.
*
* Returns:
* {<OpenLayers.Filter.FeatureId>} Clone of this filter.
*/
clone: function() {
var filter = new OpenLayers.Filter.FeatureId();
OpenLayers.Util.extend(filter, this);
filter.fids = this.fids.slice();
return filter;
},
CLASS_NAME: "OpenLayers.Filter.FeatureId"
});