NAME
Net::Blossom::Server::Backend::SQLite::MetadataStore - SQLite Blossom metadata
DESCRIPTION
This module implements Net::Blossom::Server::MetadataStore using SQLite. It stores descriptors and owners but not blob bytes.
Use the same DBI handle for the paired Net::Blossom::Server::Backend::SQLite::BlobStore so their changes share one transaction.
lock_blob and all methods that change records require a transaction started by with_transaction.
CONSTRUCTOR
new
my $metadata = Net::Blossom::Server::Backend::SQLite::MetadataStore->new(
dbh => $dbh,
);Creates a metadata store using a SQLite DBI handle with AutoCommit enabled.
METHODS
dbh
Returns the SQLite DBI handle.
deploy_schema
Creates the metadata tables and owner lookup indexes.
with_transaction
Runs a callback in a SQLite transaction.
lock_blob
Provides the contract's per-blob lock point. SQLite serializes writes for the whole database, so this method is a no-op. Conflicting writers may receive a SQLite busy or locked error.
find_blob
Returns one storage-neutral blob record by SHA-256.
insert_blob
Inserts a blob record and reports whether it was created.
upsert_owner
Creates or updates one owner record.
delete_owner
Deletes one owner record and reports whether it existed.
delete_owners
Deletes every owner record for a blob.
owner_count
Returns the number of owners for a blob.
delete_blob
Deletes one blob metadata record and reports whether it existed.
list_blobs
Returns ordered storage-neutral blob records for an owner.
BUILDARGS
Validates and normalizes constructor arguments for Class::Tiny.