JdbcIdEngine.java

package engine;

import com.github.ddth.id.JdbcIdGenerator;
import com.github.ddth.id.SerialIdGenerator;

/**
 * Jdbc-implementation of {@link IIdEngine}.
 * 
 * <p>
 * IDs generated by this engine are:
 * <ul>
 * <li>Persistent: (*) backed by database system.</li>
 * </ul>
 * <p/>
 * 
 * @author ThanhNB
 * @since 0.1.0
 */
public class JdbcIdEngine extends BaseSerialIdEngine {
    /**
     * {@inheritDoc}
     */
    @Override
    protected JdbcIdGenerator getIdGenerator() {
        return (JdbcIdGenerator) super.getIdGenerator();
    }

    /**
     * {@inheritDoc}
     */
    @Override
    public JdbcIdEngine setIdGenerator(SerialIdGenerator idGenerator) {
        if (!(idGenerator instanceof JdbcIdGenerator)) {
            final String errorMsg = "Argument must be of type [" + JdbcIdGenerator.class.getName()
                    + "]!";
            throw new IllegalArgumentException(errorMsg);
        }
        super.setIdGenerator(idGenerator);
        return this;
    }
}