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HighFive reads the data in the tables of a database schema and hashes it all with the aim of comparing it to a destination database, where this data has been migrated. It only succeeds if all data fields of all data rows of all (or selected) tables in both schemas produce the exact same SHA-1 hash value. It currently supports the Oracle, DB2 LUW, PostgreSQL, SQL Server, MySQL and MariaDB databases.

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package highfive.commands;

import java.io.IOException;
import java.security.NoSuchAlgorithmException;
import java.sql.SQLException;

import highfive.exceptions.CouldNotHashException;
import highfive.exceptions.InvalidConfigurationException;
import highfive.exceptions.InvalidHashFileException;
import highfive.exceptions.InvalidSchemaException;
import highfive.exceptions.UnsupportedDatabaseTypeException;

public abstract class Command {

  private String commandName;

  public Command(String commandName) {
    this.commandName = commandName;
  }

  protected String getCommandName() {
    return this.commandName;
  }

  public abstract void run() throws InvalidConfigurationException, SQLException, UnsupportedDatabaseTypeException,
      InvalidSchemaException, NoSuchAlgorithmException, CouldNotHashException, IOException, InvalidHashFileException;

}