/**
  * Creates an instance using a bundle of identifiers.
  *
  * @param securityBundle the security bundle to search for, not null
  */
 public SecuritySearchRequest(ExternalIdBundle securityBundle) {
   addExternalIds(securityBundle);
 }
 /**
  * Adds a single security external identifier to the collection to search for. Unless customized,
  * the search will match {@link ExternalIdSearchType#ANY any} of the identifiers.
  *
  * @param securityId the security key identifier to add, not null
  */
 public void addExternalId(ExternalId securityId) {
   ArgumentChecker.notNull(securityId, "securityId");
   addExternalIds(Arrays.asList(securityId));
 }