org.h2.command.ddl.DropAggregate Maven / Gradle / Ivy
/*
* Copyright 2004-2019 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.command.ddl;
import org.h2.api.ErrorCode;
import org.h2.command.CommandInterface;
import org.h2.engine.Database;
import org.h2.engine.Session;
import org.h2.engine.UserAggregate;
import org.h2.message.DbException;
/**
* This class represents the statement
* DROP AGGREGATE
*/
public class DropAggregate extends DefineCommand {
private String name;
private boolean ifExists;
public DropAggregate(Session session) {
super(session);
}
@Override
public int update() {
session.getUser().checkAdmin();
session.commit(true);
Database db = session.getDatabase();
UserAggregate aggregate = db.findAggregate(name);
if (aggregate == null) {
if (!ifExists) {
throw DbException.get(ErrorCode.AGGREGATE_NOT_FOUND_1, name);
}
} else {
db.removeDatabaseObject(session, aggregate);
}
return 0;
}
public void setName(String name) {
this.name = name;
}
public void setIfExists(boolean ifExists) {
this.ifExists = ifExists;
}
@Override
public int getType() {
return CommandInterface.DROP_AGGREGATE;
}
}