Re: [rules-users] how to check HashSet size in drool
sorry but for explaining
I have a class
public class Creative {
private Integer id;
private Integer geo_type;
private HashSet<GeoMap> geo_mapList=null;
public Integer getId() {
return id;
}
public void setId(Integer id) {
this.id = id;
}
public Integer getGeo_type() {
return geo_type;
}
public void setGeo_type(Integer geo_type) {
this.geo_type = geo_type;
}
public HashSet<GeoMap> getGeo_mapList() {
return geo_mapList;
}
public void setGeo_mapList(HashSet<GeoMap> geo_mapList) {
this.geo_mapList = geo_mapList;
}
and in knowledgebase
i m inserting this class like this
Creative c2=new Creative();
c2.setId(new Integer(3));
c2.setGeo_type(1);
HashSet<GeoMap> geo_mapList=new HashSet<GeoMap>();
c2.setGeo_mapList(geo_mapList);
session.insert(c2);
and in drl file i have to check if creative have geoType ==1 and sized of
geo_mapList is zero then have to show the error message
i m doing like this
rule "geo_map2"
//dialect "java"
when
$creative : Creative()
not exists($geo_map : GeoMap() from $creative.geo_mapList)
//$creative : Creative()
//exists(
//$geo_map : GeoMap()
//$creative : Creative( id > 0 , geo_mapList not contains $geo_map)
then
System.out.println("geo_map2 fail for CreativeId--"+$creative.id );
end
its not working how will i do that
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