private KeyValueStoreAccessor(
string storeDirectory,
int storeVersion,
bool defaultColumnKeyTracked,
IEnumerable <string> additionalColumns,
IEnumerable <string> additionalKeyTrackedColumns,
Action <Failure> failureHandler,
bool openReadOnly,
bool dropColumns,
bool createdNewStore)
{
Contract.Assert(storeVersion != VersionConstants.InvalidStore, "No store should pass the invalid store version since it is not safe to open an invalid store.");
StoreDirectory = storeDirectory;
ReadOnly = openReadOnly;
StoreVersion = storeVersion;
CreatedNewStore = createdNewStore;
m_store = new RocksDbStore(
StoreDirectory,
defaultColumnKeyTracked,
additionalColumns,
additionalKeyTrackedColumns,
openReadOnly,
dropColumns);
m_failureHandler = failureHandler;
}
/// <summary>
/// Create an instance by getting a snapshot from the given KeyValueStore accessor.
/// </summary>
public KeyValueStoreAccessor(KeyValueStoreAccessor accessor)
{
StoreDirectory = accessor.StoreDirectory;
ReadOnly = true;
StoreVersion = accessor.StoreVersion;
CreatedNewStore = false;
m_store = accessor.m_store.CreateSnapshot();
m_failureHandler = accessor.m_failureHandler;
}
private KeyValueStoreAccessor(
RocksDbStoreArguments storeArguments,
int storeVersion,
Action <RocksDbFailureEvent> failureHandler,
bool createdNewStore,
Action <Failure <Exception> > invalidationHandler)
{
Contract.Assert(storeVersion != VersionConstants.InvalidStore, "No store should pass the invalid store version since it is not safe to open an invalid store.");
StoreDirectory = storeArguments.StoreDirectory;
ReadOnly = storeArguments.ReadOnly;
StoreVersion = storeVersion;
CreatedNewStore = createdNewStore;
m_store = new RocksDbStore(storeArguments);
m_failureHandler = failureHandler;
m_invalidationHandler = invalidationHandler;
}
/// <summary>
/// Create an instance by getting a snapshot from the given KeyValueStore accessor.
/// </summary>
public KeyValueStoreAccessor(KeyValueStoreAccessor accessor)
{
StoreDirectory = accessor.StoreDirectory;
ReadOnly = true;
StoreVersion = accessor.StoreVersion;
CreatedNewStore = false;
m_invalidateStoreOnDispose = accessor.m_invalidateStoreOnDispose;
m_failureHandler = accessor.m_failureHandler;
m_disabledFailure = accessor.m_disabledFailure;
m_disposed = accessor.m_disposed;
m_invalidationHandler = accessor.m_invalidationHandler;
if (accessor.Disabled)
{
// Creating a snapshot of a disabled store will carry the error along, so it should never be accessed.
m_store = null;
}
else
{
m_store = accessor.m_store.CreateSnapshot();
}
}
