How to use

setFields

method

in

org.elasticsearch.action.admin.indices.cache.clear.ClearIndicesCacheRequestBuilder

@Test
public void to_string() {
 assertThat(es.client().prepareClearCache().toString()).isEqualTo("ES clear cache request");
 assertThat(es.client().prepareClearCache("rules").toString()).isEqualTo("ES clear cache request on indices 'rules'");
 assertThat(es.client().prepareClearCache().setFields("key").toString()).isEqualTo("ES clear cache request on fields 'key'");
 assertThat(es.client().prepareClearCache().setFieldDataCache(true).toString()).isEqualTo("ES clear cache request with field data cache");
 assertThat(es.client().prepareClearCache().setRequestCache(true).toString()).isEqualTo("ES clear cache request with request cache");
}