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// 
//  The MIT License (MIT)
// 
//  Permission is hereby granted, free of charge, to any person obtaining a copy
//  of this software and associated documentation files (the "Software"), to deal
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//  copies of the Software, and to permit persons to whom the Software is
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// 
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// events: onEventObject
function d3CTDDataSourceFilter(dataSource, filter) {
    var self = this;
    // call base class contructor
    baseClass.call(self);

    self._filter = filter;

    // register handler
    dataSource.addEventListener('eventObject', function (evt) {
        var eventObject = evt.owner;
        // check filter
        if (self._filter) {
            for (var id in self._filter) {
                if (!eventObject.hasOwnProperty(id) || eventObject[id] != self._filter[id])
                    return;
            }
        }

        // forward message
        self.raiseEvent('eventObject', eventObject);

    });

    return self;
}

d3CTDDataSourceFilter.prototype = {
    constructor: d3CTDDataSourceFilter,
};

extendClass(d3CTDDataSourceFilter, baseClass);
