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/*
 * Copyright 2004-2011 H2 Group.
 * Copyright 2011 James Moger.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package com.iciql;

import com.iciql.Iciql.IQColumn;
import com.iciql.Iciql.IQTable;

/**
 * A system table to track database and table versions.
 */
@IQTable(name = "iq_versions", primaryKey = { "schemaName", "tableName" }, memoryTable = true)
public class DbVersion {

	@IQColumn(length = 255)
	String schemaName = "";

	@IQColumn(length = 255)
	String tableName = "";

	@IQColumn
	Integer version;

	public DbVersion() {
		// nothing to do
	}

	/**
	 * Constructor for defining a version entry. Both the schema and the table
	 * are empty strings, which means this is the row for the 'database'.
	 * 
	 * @param version
	 *            the database version
	 */
	public DbVersion(int version) {
		this.schemaName = "";
		this.tableName = "";
		this.version = version;
	}

}