InformixDatabase.java

/*-
 * ========================LICENSE_START=================================
 * flyway-database-informix
 * ========================================================================
 * 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.database.informix;

import org.flywaydb.core.api.configuration.Configuration;
import org.flywaydb.core.internal.database.base.Database;
import org.flywaydb.core.internal.database.base.Table;
import org.flywaydb.core.internal.jdbc.JdbcConnectionFactory;
import org.flywaydb.core.internal.jdbc.StatementInterceptor;

import java.sql.Connection;
import java.sql.SQLException;

/**
 * Informix database.
 */
public class InformixDatabase extends Database<InformixConnection> {

    public InformixDatabase(final Configuration configuration,
        final JdbcConnectionFactory jdbcConnectionFactory,
        final StatementInterceptor statementInterceptor) {
        super(configuration, jdbcConnectionFactory, statementInterceptor);
    }

    @Override
    protected InformixConnection doGetConnection(final Connection connection) {
        return new InformixConnection(this, connection);
    }

    @Override
    public void ensureSupported(final Configuration configuration) {
        ensureDatabaseIsRecentEnough("12.10");
        recommendFlywayUpgradeIfNecessary("12.10");
    }

    @Override
    public String getRawCreateScript(final Table table, final boolean baseline) {
        final String tablespace = configuration.getTablespace() == null
            ? ""
            : " IN \"" + configuration.getTablespace() + "\"";

        return "CREATE TABLE "
            + table
            + " (\n"
            + "    installed_rank INT NOT NULL,\n"
            + "    version VARCHAR(50),\n"
            + "    description VARCHAR(200) NOT NULL,\n"
            + "    type VARCHAR(20) NOT NULL,\n"
            + "    script LVARCHAR(1000) NOT NULL,\n"
            + "    checksum INT,\n"
            + "    installed_by VARCHAR(100) NOT NULL,\n"
            + "    installed_on DATETIME YEAR TO FRACTION(3) DEFAULT CURRENT YEAR TO FRACTION(3) NOT NULL,\n"
            + "    execution_time INT NOT NULL,\n"
            + "    success SMALLINT NOT NULL\n"
            + ")"
            + tablespace
            + ";\n"
            + (baseline ? getBaselineStatement(table) + ";\n" : "")
            + "ALTER TABLE "
            + table
            + " ADD CONSTRAINT CHECK (success in (0,1)) CONSTRAINT "
            + table.getName()
            + "_s;\n"
            + "ALTER TABLE "
            + table
            + " ADD CONSTRAINT PRIMARY KEY (installed_rank) CONSTRAINT "
            + table.getName()
            + "_pk;\n"
            + "CREATE INDEX "
            + table.getName()
            + "_s_idx ON "
            + table
            + " (success);";
    }

    @Override
    protected String doGetCurrentUser() throws SQLException {
        return getJdbcMetaData().getUserName();
    }

    @Override
    public boolean supportsDdlTransactions() {
        return true;
    }

    @Override
    public String getBooleanTrue() {
        return "1";
    }

    @Override
    public String getBooleanFalse() {
        return "0";
    }

    @Override
    public String getOpenQuote() {
        return "";
    }

    @Override
    public String getCloseQuote() {
        return "";
    }

    @Override
    public boolean catalogIsSchema() {
        return false;
    }

    @Override
    public boolean useSingleConnection() {
        return false;
    }
}