Interface IObjectCache
Interface for an object cache
Namespace: ImageVault.Common.Data.Caching
Assembly: ImageVault.Common.dll
Syntax
public interface IObjectCache
Methods
Get(String)
Gets a cached object by a specified key
Declaration
object Get(string name)
Parameters
Type | Name | Description |
---|---|---|
System.String | name |
Returns
Type | Description |
---|---|
System.Object |
GetOrCreate<T>(String, Func<T, TimeSpan>, Func<T, DateTime>, Func<T>)
This provides a thread safe way to get a value from in-or-out-of-process cache or if the cached entry is missing, create it.
Declaration
T GetOrCreate<T>(string name, Func<T, TimeSpan> slidingExpirationFunc, Func<T, DateTime> absoluteExpirationFunc, Func<T> createAction)
Parameters
Type | Name | Description |
---|---|---|
System.String | name | The name of the item to get |
System.Func<T, System.TimeSpan> | slidingExpirationFunc | The length of time the item is valid from last reference. NoSlidingExpiration disables sliding expiration. |
System.Func<T, System.DateTime> | absoluteExpirationFunc | The time when the cached item expires. NoAbsoluteExpiration disables absolute expiration. |
System.Func<T> | createAction | The System.Func<> to call if the value is not present that will create the value to enter in the cache |
Returns
Type | Description |
---|---|
T | The retrieved or created value |
Type Parameters
Name | Description |
---|---|
T | The type of object to get |
GetOrCreateAsync<T>(String, Func<T, TimeSpan>, Func<T, DateTime>, Func<Task<T>>)
This provides a thread safe way to get a value from in-or-out-of-process cache or if the cached entry is missing, create it.
Declaration
Task<T> GetOrCreateAsync<T>(string name, Func<T, TimeSpan> slidingExpirationFunc, Func<T, DateTime> absoluteExpirationFunc, Func<Task<T>> createAction)
Parameters
Type | Name | Description |
---|---|---|
System.String | name | The name of the item to get |
System.Func<T, System.TimeSpan> | slidingExpirationFunc | The length of time the item is valid from last reference. NoSlidingExpiration disables sliding expiration. |
System.Func<T, System.DateTime> | absoluteExpirationFunc | The time when the cached item expires. NoAbsoluteExpiration disables absolute expiration. |
System.Func<System.Threading.Tasks.Task<T>> | createAction | The System.Func<> to call if the value is not present that will create the value to enter in the cache |
Returns
Type | Description |
---|---|
System.Threading.Tasks.Task<T> | The retrieved or created value |
Type Parameters
Name | Description |
---|---|
T | The type of object to get |
Remove(String)
Removes an item from the cache
Declaration
void Remove(string name)
Parameters
Type | Name | Description |
---|---|---|
System.String | name |
RemoveStartsWith(String)
Removes items from the cache who's names starts with the given prefix
Declaration
void RemoveStartsWith(string value)
Parameters
Type | Name | Description |
---|---|---|
System.String | value |
Replace<T>(String, TimeSpan, DateTime, T)
Replaces or adds an entry in an in-or-out-of-process cache with the specified name with the provided value.
Declaration
void Replace<T>(string name, TimeSpan slidingExpiration, DateTime absoluteExpiration, T value)
Parameters
Type | Name | Description |
---|---|---|
System.String | name | The name. |
System.TimeSpan | slidingExpiration | The length of time the item is valid from last reference. NoSlidingExpiration disables sliding expiration. |
System.DateTime | absoluteExpiration | The time when the cached item expires. NoAbsoluteExpiration disables absolute expiration. |
T | value | The value to put into the cache. |
Type Parameters
Name | Description |
---|---|
T |
TryGet(String, out Object)
Tries to get a cached object by a specified key
Declaration
bool TryGet(string name, out object value)
Parameters
Type | Name | Description |
---|---|---|
System.String | name | Name of the item to get |
System.Object | value | The found item or null if no item was found |
Returns
Type | Description |
---|---|
System.Boolean | True if the operation was successful, false if operation generated an error. |
TryGetOrCreate<T>(String, Func<T, TimeSpan>, Func<T, DateTime>, Func<T>, out T)
This provides a thread safe way to get a value from in-or-out-of-process cache or if the cached entry is missing, create it.
Declaration
bool TryGetOrCreate<T>(string name, Func<T, TimeSpan> slidingExpirationFunc, Func<T, DateTime> absoluteExpirationFunc, Func<T> createAction, out T value)
Parameters
Type | Name | Description |
---|---|---|
System.String | name | The name of the item to get |
System.Func<T, System.TimeSpan> | slidingExpirationFunc | The length of time the item is valid from last reference. NoSlidingExpiration disables sliding expiration. |
System.Func<T, System.DateTime> | absoluteExpirationFunc | The time when the cached item expires. NoAbsoluteExpiration disables absolute expiration. |
System.Func<T> | createAction | The System.Func<> to call if the value is not present that will create the value to enter in the cache |
T | value | The retrieved or created value |
Returns
Type | Description |
---|---|
System.Boolean | True if operation populated a value, false otherwise |
Type Parameters
Name | Description |
---|---|
T | The type of object to get/set |