@JsonIgnore
        public boolean isAssignedTo(final RegisteredService service, final Predicate<String> valueFilter) {
            return service != null && service.getProperties().entrySet()
                .stream()
                .anyMatch(entry -> entry.getKey().equalsIgnoreCase(getPropertyName())
                    && StringUtils.isNotBlank(entry.getValue().value())
                    && valueFilter.test(entry.getValue().value()));
        }
Is assigned to value.

@param service     the service
@param valueFilter the filter
@return true/false
api/cas-server-core-api-services/src/main/java/org/apereo/cas/services/RegisteredServiceProperty.java