public java.util.List<DBParameterGroupStatus> getDBParameterGroups() {
        if (dBParameterGroups == null) {
            dBParameterGroups = new com.amazonaws.internal.SdkInternalList<DBParameterGroupStatus>();
        }
        return dBParameterGroups;
    }
<p>
The list of DB parameter groups applied to this DB instance.
</p>

@return The list of DB parameter groups applied to this DB instance.
aws-java-sdk-rds/src/main/java/com/amazonaws/services/rds/model/DBInstance.java