JOOQ使用Record7封装来自不同表的字段

Question

I'm using JOOQ to retrieve records from 2 tables, i created custom object NearByPlace of returned columns, i read about Record7 and see that it's much better to use it rather than creating new object as below, i tried it but it failed in compilation saying that can't convert from Org.JOOQ.Record7 to record of below aliases, any idea of how to do that?

public List<NearByPlace> getNearBy(NearByRequestWrapper wrapper) {

return db().select(
    PLACE.NAME.as("placeName"),
    PLACE.TYPE.as("placeType"),
    PLACE.LAT.as("lat"),
    PLACE.LON.as("lon"),
    EVENT.NAME.as("eventName"),
    DSL.field("earth_distance(ll_to_earth(" + wrapper.lat() + "," + wrapper.lon() + "),ll_to_earth(place.lat, place.lon))* 0.000621371192").as("distanceToReach"),
    DSL.field(EVENT.TYPE).as("eventType"))
    .from(PLACE)
    .leftJoin(EVENT)
    .on(PLACE.ID.eq(EVENT.LOCATION_ID))
    .where(PLACE.ID.eq(1))
    .fetchInto(NearByPlace.class);

}

Answer 1

if you want to work with jOOQ's native RecordX types, simply invoke fetch() rather than fetchInto(Class) .

in this case, that should yield an org.jooq.Result<Record7<...>>

UPDATE

updated sample code as requested.

(note: this example assumes what the type parameters for Record7 should be based on the names of columns and what i think they mean. if i've guessed wrong, compilation will fail, but this should be a straightforward problem to fix.)

        final org.joog.Result<Record7<String,String,Double,Double,String,String,String>> result = db().select(
                    PLACE.NAME.as("placeName"),
                    PLACE.TYPE.as("placeType"),
                    PLACE.LAT.as("lat"),
                    PLACE.LON.as("lon"),
                    EVENT.NAME.as("eventName"),
                    DSL.field("earth_distance(ll_to_earth(" + wrapper.lat() + "," + wrapper.lon() + "),ll_to_earth(place.lat, place.lon))* 0.000621371192").as("distanceToReach"),
                    DSL.field(EVENT.TYPE).as("eventType"))
                .from(PLACE)
                    .leftJoin(EVENT)
                        .on(PLACE.ID.eq(EVENT.LOCATION_ID))
                .where(PLACE.ID.eq(1))
                .fetch();

        return result;