@Override
    public boolean equals(Object o) {
        if (this == o) return true;
        if (o == null || getClass() != o.getClass()) return false;
        if (!super.equals(o)) return false;
        VespaReindexAction that = (VespaReindexAction) o;
        return Objects.equals(validationId, that.validationId) &&
               Objects.equals(documentType, that.documentType);
    }
The name of this action, which must be a valid ValidationId. This is a string here because
the validation ids belong to the Vespa model while these names are exposed to the config server,
which is model version independent.
config-model/src/main/java/com/yahoo/vespa/model/application/validation/change/VespaReindexAction.java