worryg0d commented on code in PR #1929:
URL:
https://github.com/apache/cassandra-gocql-driver/pull/1929#discussion_r2930594068
##########
cluster.go:
##########
@@ -394,6 +397,60 @@ func (cfg *ClusterConfig) filterHost(host *HostInfo) bool {
return !(cfg.HostFilter == nil || cfg.HostFilter.Accept(host))
}
+// MetadataConfig configures driver's internal metadata caching and event
listening.
+type MetadataConfig struct {
+ CacheMode MetadataCacheMode
+
+ // HostListener configures event listeners for host state and topology
changes.
+ HostListener HostListenersConfig
+
+ // SchemaListener configures event listeners for schema changes.
+ //
+ // If CacheMode is Full, listeners will be notified about all schema
changes.
+ //
+ // If CacheMode is KeyspaceOnly, only KeyspaceChangeListener will be
notified,
+ // having other listeners registered will result in an error during
session creation.
+ //
+ // If CacheMode is Disabled, having these listeners will result in an
error during session creation.
Review Comment:
Added mentions to constants and this for the field:
```
// CacheMode controls how the driver reads and caches schema metadata
from Cassandra system tables.
//
// Also, it affects the behavior of schema change listeners.
//
// If CacheMode is KeyspaceOnly, only KeyspaceChangeListener will be
notified,
// having other listeners registered will result in an error during
session creation.
//
// If CacheMode is Disabled, having these listeners will result in an
error during session creation.
//
// See [MetadataCacheMode] for more details.
CacheMode MetadataCacheMode
```
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