/*
* Copyright 2004-2013 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: H2 Group
*/
package org.lealone.command.ddl;
import org.lealone.command.CommandInterface;
import org.lealone.constant.ErrorCode;
import org.lealone.dbobject.Schema;
import org.lealone.dbobject.UserAggregate;
import org.lealone.engine.Database;
import org.lealone.engine.Session;
import org.lealone.message.DbException;
/**
* This class represents the statement
* CREATE AGGREGATE
*/
public class CreateAggregate extends DefineCommand {
private Schema schema;
private String name;
private String javaClassMethod;
private boolean ifNotExists;
private boolean force;
public CreateAggregate(Session session) {
super(session);
}
public int update() {
session.commit(true);
session.getUser().checkAdmin();
Database db = session.getDatabase();
if (db.findAggregate(name) != null || schema.findFunction(name) != null) {
if (!ifNotExists) {
throw DbException.get(ErrorCode.FUNCTION_ALIAS_ALREADY_EXISTS_1, name);
}
} else {
int id = getObjectId();
UserAggregate aggregate = new UserAggregate(db, id, name, javaClassMethod, force);
db.addDatabaseObject(session, aggregate);
}
return 0;
}
public void setSchema(Schema schema) {
this.schema = schema;
}
public void setName(String name) {
this.name = name;
}
public void setJavaClassMethod(String string) {
this.javaClassMethod = string;
}
public void setIfNotExists(boolean ifNotExists) {
this.ifNotExists = ifNotExists;
}
public void setForce(boolean force) {
this.force = force;
}
public int getType() {
return CommandInterface.CREATE_AGGREGATE;
}
}