SembastQueryRefExtension<K, V> extension

Query db actions.

on

• QueryRef<K, V>

Methods

count(DatabaseClient client) → Future<int>

Available on QueryRef<K, V>, provided by the SembastQueryRefExtension extension

count records.

getKey(DatabaseClient client) → Future<K?>

Available on QueryRef<K, V>, provided by the SembastQueryRefExtension extension

Find first record key matching the query.

getKeys(DatabaseClient client) → Future<List<K>>

Available on QueryRef<K, V>, provided by the SembastQueryRefExtension extension

Find multiple record keys

getSnapshot(DatabaseClient client) → Future<RecordSnapshot<K, V>?>

Available on QueryRef<K, V>, provided by the SembastQueryRefExtension extension

Find first record matching the query.

getSnapshots(DatabaseClient client) → Future<List<RecordSnapshot<K, V>>>

Available on QueryRef<K, V>, provided by the SembastQueryRefExtension extension

Find multiple records.

onCount(Database database) → Stream<int>

Available on QueryRef<K, V>, provided by the SembastQueryRefExtension extension

onCount stream, called when the number of items changes.

onKey(Database database) → Stream<K?>

Available on QueryRef<K, V>, provided by the SembastQueryRefExtension extension

Find first record key (null if none) and listen for changes.

onKeys(Database database) → Stream<List<K>>

Available on QueryRef<K, V>, provided by the SembastQueryRefExtension extension

Find multiple records and listen for changes.

onSnapshot(Database database) → Stream<RecordSnapshot<K, V>?>

Available on QueryRef<K, V>, provided by the SembastQueryRefExtension extension

Find first record (null if none) and listen for changes.

onSnapshots(Database database) → Stream<List<RecordSnapshot<K, V>>>

Available on QueryRef<K, V>, provided by the SembastQueryRefExtension extension

Find multiple records and listen for changes.