Class AslNotNullQueryCondition

java.lang.Object
org.ehrbase.openehr.aqlengine.asl.model.condition.AslNotNullQueryCondition
All Implemented Interfaces:
AslQueryCondition

public final class AslNotNullQueryCondition extends Object implements AslQueryCondition
This condition is used to make sure a left-joined subquery is not empty, by checking that a field based on a column with a NOT NULL constraint (i.e. COMP.VO_ID) is not null.