/*
* Copyright 2004-2011 H2 Group. Multiple-Licensed under the H2 License,
* Version 1.0, and under the Eclipse Public License, Version 1.0
* (http://h2database.com/html/license.html).
* Initial Developer: James Moger
*/
package org.h2.jaqu;
/**
* This class represents "SET column = (column + x)" in an UPDATE statement.
*
* @param <T> the query type
* @param <A> the new value data type
*/
public class UpdateColumnIncrement<T, A> implements UpdateColumn {
private Query<T> query;
private A x;
private A y;
UpdateColumnIncrement(Query<T> query, A x) {
this.query = query;
this.x = x;
}
public Query<T> by(A y) {
query.addUpdateColumnDeclaration(this);
this.y = y;
return query;
}
public void appendSQL(SQLStatement stat) {
query.appendSQL(stat, x);
stat.appendSQL("=(");
query.appendSQL(stat, x);
stat.appendSQL("+");
query.appendSQL(stat, y);
stat.appendSQL(")");
}
}