addEncodedQuery adds the conditions before querying for results.
var query = "category=Hardware^priority=1";
var gr = new GlideRecord("incident");
gr.addEncodedQuery(query);
gr.query();
applyEncodedQuery takes the values from the query and applies them to a record.
var query = "category=Hardware^priority=1";
gr = new GlideRecord('incident');
gr.applyEncodedQuery(query);
gr.insert();
//incident created with values from encoded query
