org.h2.expression.aggregate.AggregateData Maven / Gradle / Ivy
/*
* Copyright 2004-2022 H2 Group. Multiple-Licensed under the MPL 2.0,
* and the EPL 1.0 (https://h2database.com/html/license.html).
* Initial Developer: H2 Group
*/
package org.h2.expression.aggregate;
import org.h2.engine.SessionLocal;
import org.h2.value.Value;
/**
* Abstract class for the computation of an aggregate.
*/
abstract class AggregateData {
/**
* Add a value to this aggregate.
*
* @param session the session
* @param v the value
*/
abstract void add(SessionLocal session, Value v);
/**
* Get the aggregate result.
*
* @param session the session
* @return the value
*/
abstract Value getValue(SessionLocal session);
}