com.github.nwillc.funjdbc.migrate.MigrationBase Maven / Gradle / Ivy

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Java 8 functional JDBC utility code, applying some of Java's newer features to reduce JDBC boilerplate code.

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/*
 * Copyright (c) 2014, [email protected]
 *
 * Permission to use, copy, modify, and/or distribute this software for any
 * purpose with or without fee is hereby granted, provided that the above
 * copyright notice and this permission notice appear in all copies.
 *
 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
 */

package com.github.nwillc.funjdbc.migrate;

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


/**
 * A basic Migration base class.
 */
public abstract class MigrationBase implements Migration {
    private Manager manager = Manager.getInstance();

    @Override
    public boolean runAlways() {
        return Boolean.FALSE;
    }

    @Override
    public Connection getConnection() throws SQLException {
       return manager.getConnection();
    }

    @Override
    public boolean completed() {
        return manager.migrated(getIdentifier());
    }

    @Override
    public String toString() {
        final StringBuffer sb = new StringBuffer(getClass().getSimpleName()).append('{');
        sb.append("identifier: ").append(getIdentifier()).append(", ");
        sb.append("description: ").append(getDescription()).append(", ");
        sb.append("performed: ").append(Manager.getInstance().migrated(getIdentifier()));
        sb.append('}');
        return sb.toString();
    }
}