nl: returns an index about where in the cache different variants for a given resource are stored . this maps `` variant keys '' to `` cache keys '' , where the variant key is derived from the varying request headers , and the cache key is the location in the ch.boye.httpclientandroidlib.client.cache.httpcachestorage where thatparticular variant is stored . the first variant returned is used as the `` parent '' entry to hold this index of the other variants . concode_field_sep Date date concode_elem_sep Map<String,String> variantMap concode_elem_sep StatusLine statusLine concode_elem_sep HeaderGroup responseHeaders concode_elem_sep Resource resource concode_elem_sep Date requestDate concode_elem_sep long serialVersionUID concode_elem_sep Date responseDate concode_field_sep Resource getResource concode_elem_sep Header[] getHeaders concode_elem_sep Header getFirstHeader concode_elem_sep Header[] getAllHeaders concode_elem_sep String getReasonPhrase concode_elem_sep ProtocolVersion getProtocolVersion concode_elem_sep Date getResponseDate concode_elem_sep boolean hasVariants concode_elem_sep Date parseDate concode_elem_sep int getStatusCode concode_elem_sep StatusLine getStatusLine concode_elem_sep Date getDate concode_elem_sep String toString concode_elem_sep Date getRequestDate
code: Map < String , String > function ( ) { return Collections . unmodifiableMap ( variantMap ) ; }