# MigrationBuilder.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;

    /**
     * Builder for set of migration rules. This needs to be passed in as metadata to the MigrationService.
     */
    public class MigrationBuilder
    {
        MigrationRules<EntityMigrationRule> entityRules;
        MigrationRules<MigrationRule> rules;

        String fromVersion;

        public MigrationBuilder( String fromVersion )
        {
            this.entityRules = new MigrationRules<EntityMigrationRule>();
            this.rules = new MigrationRules<MigrationRule>();
            this.fromVersion = fromVersion;
        }

        public VersionMigrationBuilder toVersion( String toVersion )
        {
            return new VersionMigrationBuilder( this, fromVersion, toVersion );
        }

        public MigrationRules<EntityMigrationRule> entityMigrationRules()
        {
            return entityRules;
        }

        public MigrationRules<MigrationRule> migrationRules()
        {
            return rules;
        }
    }