public class NullDataStore : IDataStore
A null datastore. Nothing is stored, nothing is retrievable.
Implements
IDataStoreNamespace
GoogleApisUtilStoreAssembly
Google.Apis.dll
Constructors
NullDataStore()
public NullDataStore()
Construct a new null datastore, that stores nothing.
Methods
ClearAsync()
public Task ClearAsync()
Asynchronously clears all values in the data store.
Returns | |
---|---|
Type | Description |
Task |
DeleteAsync<T>(string)
public Task DeleteAsync<T>(string key)
Asynchronously deletes the given key. The type is provided here as well because the "real" saved key should contain type information as well, so the data store will be able to store the same key for different types.
Parameter | |
---|---|
Name | Description |
key |
string The key to delete. |
Returns | |
---|---|
Type | Description |
Task |
Type Parameter | |
---|---|
Name | Description |
T |
The type to delete from the data store. |
GetAsync<T>(string)
public Task<T> GetAsync<T>(string key)
Asynchronously returns the stored value for the given key or null
if not found.
This implementation of IDataStore will always return a completed task
with a result of null
.
Parameter | |
---|---|
Name | Description |
key |
string The key to retrieve its value. |
Returns | |
---|---|
Type | Description |
Task |
Always |
Type Parameter | |
---|---|
Name | Description |
T |
The type to retrieve from the data store. |
StoreAsync<T>(string, T)
public Task StoreAsync<T>(string key, T value)
Asynchronously stores the given value for the given key (replacing any existing value). This implementation of IDataStore does not store the value, and will not return it in future calls to GetAsync<T>(string).
Parameters | |
---|---|
Name | Description |
key |
string The key. |
value |
T The value. |
Returns | |
---|---|
Type | Description |
Task |
A task that completes immediately. |
Type Parameter | |
---|---|
Name | Description |
T |
The type to store in the data store. |