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package com.scalar.db.sql.statement.builder;

import com.scalar.db.sql.statement.ShowGrantsStatement;
import javax.annotation.Nullable;

public class ShowGrantsStatementBuilder {

  private ShowGrantsStatementBuilder() {}

  public static class Start extends Buildable {
    Start() {
      super(null);
    }

    /**
     * Sets the username to show grants.
     *
     * @param username - the username to show grants
     * @return this object
     */
    public Buildable forUser(String username) {
      return new Buildable(username);
    }
  }

  public static class Buildable {

    @Nullable private final String username;

    private Buildable(@Nullable String username) {
      this.username = username;
    }

    /**
     * Builds a ShowGrantsStatement object.
     *
     * @return a ShowGrantsStatement object
     */
    public ShowGrantsStatement build() {
      return ShowGrantsStatement.create(username);
    }
  }
}