BaselineJavaMigration.java

/*-
 * ========================LICENSE_START=================================
 * flyway-core
 * ========================================================================
 * Copyright (C) 2010 - 2026 Red Gate Software Ltd
 * ========================================================================
 * 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.
 * =========================LICENSE_END==================================
 */
package org.flywaydb.core.api.migration.baseline;

import org.flywaydb.core.api.FlywayException;
import org.flywaydb.core.api.configuration.Configuration;
import org.flywaydb.core.api.migration.BaseJavaMigration;
import org.flywaydb.core.api.resolver.ResolvedMigration;
import org.flywaydb.core.extensibility.MigrationType;
import org.flywaydb.core.internal.jdbc.StatementInterceptor;
import org.flywaydb.core.internal.resolver.java.JavaMigrationExecutor;
import org.flywaydb.core.internal.util.ClassUtils;

public abstract class BaselineJavaMigration extends BaseJavaMigration {

    private static final String BASELINE_MIGRATION_PREFIX = "B";

    @Override
    protected void init() {
        final String shortName = getClass().getSimpleName();
        if (!shortName.startsWith(BASELINE_MIGRATION_PREFIX)) {
            throw new FlywayException("Invalid baseline Java migration class name: "
                + getClass().getName()
                + " => ensure it starts with "
                + BASELINE_MIGRATION_PREFIX
                + " or implement org.flywaydb.core.api.migration.JavaMigration directly for non-default naming");
        }
        extractVersionAndDescription(shortName, BASELINE_MIGRATION_PREFIX, false);
    }

    @Override
    public MigrationType getType() {
        return BaselineMigrationType.JDBC_BASELINE;
    }

    @Override
    public ResolvedMigration getResolvedMigration(final Configuration config,
        final StatementInterceptor statementInterceptor) {
        return new BaselineResolvedMigration(getVersion(),
            getDescription(),
            getClass().getName(),
            getChecksum(),
            null,
            getType(),
            ClassUtils.getLocationOnDisk(getClass()),
            new JavaMigrationExecutor(this, statementInterceptor),
            config);
    }
}