Module @luciad/ria/ogc/filter/FilterFactory

A module with static functions to create Expression instances or Identifiers instances.

This class can for example be used in combination with a WFSFeatureStore. It allows to create a filter which is interpreted by the WFS server as shown below:

  var geoReference = ...;
  var wfsStore = new WFSFeatureStore({
    serviceURL: "http://localhost:8080/LuciadLightspeedOGC/wfs",
    typeName: "rivers",
    reference: geoReference
  } );
  var wfsModel = new FeatureModel(wfsStore, {reference: geoReference} );

  var ogcFilter = FilterFactory.eq(
      FilterFactory.property("SYSTEM"),
      FilterFactory.literal("Mississippi"));

  var wfsLayer = new FeatureLayer(wfsModel, {
   label: "WFS Layer",
   selectable: true,
   loadingStrategy: new LoadEverything( {query: {filter: ogcFilter}} )
 });
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