How to use

firstOrNull

method

in

leap.orm.query.Query

/**
 * Returns true if the result has records, or returns false if no records.
 */
default boolean exists() {
  return firstOrNull() != null;
}

protected AuthzClientEntity loadAuthzClientEntity(String clientId){
  AuthzClientEntity entity;
  if(null == loadClientCommand) {
    entity = dao.findOrNull(AuthzClientEntity.class, clientId);
  }else{
    entity = dao.createQuery(AuthzClientEntity.class, loadClientCommand).firstOrNull();
  }
  return entity;
}

protected AuthzClientEntity loadAuthzClientEntity(String clientId){
  AuthzClientEntity entity;
  if(null == loadClientCommand) {
    entity = dao.findOrNull(AuthzClientEntity.class, clientId);
  }else{
    entity = dao.createQuery(AuthzClientEntity.class, loadClientCommand).firstOrNull();
  }
  return entity;
}

@Override
public AuthzCode loadAuthorizationCode(String code) {
  AuthzCodeEntity entity;
  if(null == loadAuthorizationCodeCommand) {
    entity = dao.findOrNull(AuthzCodeEntity.class, code);
  }else{
    entity = dao.createQuery(AuthzCodeEntity.class, loadAuthorizationCodeCommand).firstOrNull();
  }
  return null == entity ? null : createAuthzCodeFromEntity(entity);
}

@Override
public AuthzCode loadAuthorizationCode(String code) {
  AuthzCodeEntity entity;
  if(null == loadAuthorizationCodeCommand) {
    entity = dao.findOrNull(AuthzCodeEntity.class, code);
  }else{
    entity = dao.createQuery(AuthzCodeEntity.class, loadAuthorizationCodeCommand).firstOrNull();
  }
  return null == entity ? null : createAuthzCodeFromEntity(entity);
}