/**
 * Cache containing view metadata sets
 * @deprecated use {@link #_viewCache} instead
 */
 @Deprecated
 private Map<String, Map<String, MetadataSet>> _cacheForView = new HashMap<>();
 
 /**
 * Cache containing edition metadata sets
 * @deprecated use {@link #_viewCache} instead
 */
 @Deprecated
 private Map<String, Map<String, MetadataSet>> _cacheForEdition = new HashMap<>();
 
 /**
 * Cache containing content types' views
 * The key is a cache identifier that is a concatenation of the identifiers of the concerned content types and mixins
 * The value is a Map containing the views by their names
 */
 private Map<String, Map<String, View>> _viewCache = new HashMap<>();