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