com.launchdarkly.sdk.server.subsystems

Interface TransactionalDataStore

public interface TransactionalDataStore

Interface for a data store that holds feature flags and related data received by the SDK. This interface supports updating the store transactionally using ChangeSets.

Ordinarily, the only implementation of this interface is the default in-memory implementation, which holds references to actual SDK data model objects. Any data store implementation that uses an external store, such as a database, should instead use PersistentDataStore.

Implementations must be thread-safe.

See Also:

PersistentDataStore

Method Summary

Modifier and Type	Method and Description
void	apply(com.launchdarkly.sdk.fdv2.ChangeSet<java.lang.Iterable<java.util.Map.Entry<DataStoreTypes.DataKind,DataStoreTypes.KeyedItems<DataStoreTypes.ItemDescriptor>>>> changeSet) Apply the given change set to the store.
com.launchdarkly.sdk.fdv2.Selector	getSelector() Returns the selector for the currently stored data.

Method Detail

apply

void apply(com.launchdarkly.sdk.fdv2.ChangeSet<java.lang.Iterable<java.util.Map.Entry<DataStoreTypes.DataKind,DataStoreTypes.KeyedItems<DataStoreTypes.ItemDescriptor>>>> changeSet)

Apply the given change set to the store. This should be done atomically if possible.

Parameters:

changeSet - the changeset to apply

getSelector

com.launchdarkly.sdk.fdv2.Selector getSelector()

Returns the selector for the currently stored data. The selector will be non-null but may be empty.

Returns:

the selector for the currently stored data