# AbstractMigrationRule.java

    /*
     * Copyright (c) 2009, Rickard Öberg. All Rights Reserved.
     *
     * 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 org.qi4j.migration.assembly;

    /**
     * Base class for migration rules.
     */
    public class AbstractMigrationRule
    {
        protected String fromVersion;
        protected String toVersion;

        public AbstractMigrationRule( String fromVersion, String toVersion )
        {
            this.fromVersion = fromVersion;
            this.toVersion = toVersion;
        }

        public String fromVersion()
        {
            return fromVersion;
        }

        public String toVersion()
        {
            return toVersion;
        }
    }