wow-query/me.ahoo.wow.query.schema/QueryStorageFacts

QueryStorageFacts

class QueryStorageFacts(val bindings: Map<QueryPathTemplate, QueryValueBindings>, val capabilities: Set<QueryCapability> = emptySet(), val fullProjectionAvailable: Boolean = true, val approximateMetrics: Set<String> = emptySet(), val storage: StorageSupport = StorageSupport.NATIVE)

What a storage proves about one read model, in the storage-neutral vocabulary of capabilities: for each logical path, the capabilities its native structures can execute and the physical location each binds to, with the projection and response locations; and the storage's model-wide support. Which native types, index kinds or mapping options prove a capability is the storage's knowledge; what a logical value must be for a capability to apply at all is the Catalog's (compile).

Constructors

QueryStorageFacts

constructor(bindings: Map<QueryPathTemplate, QueryValueBindings>, capabilities: Set<QueryCapability> = emptySet(), fullProjectionAvailable: Boolean = true, approximateMetrics: Set<String> = emptySet(), storage: StorageSupport = StorageSupport.NATIVE)