Method GetByTag
GetByTag<T>(Tag)
Gets all the cached items with the specified tag.
Declaration
IDictionary<string, T> GetByTag<T>(Tag tag)Parameters
| Type | Name | Description |
|---|---|---|
| Tag | tag | Name of tag to search the cache items with. |
Returns
| Type | Description |
|---|---|
| System.Collections.Generic.IDictionary<System.String, T> | Returns a dictionary containing the cache keys and associated objects with the type specified. |
Type Parameters
| Name | Description |
|---|---|
| T | Specifies the type of value obtained from the cache. |
Examples
The following example demonstrates how to get the objects with the specified tag.
ICache cache = CacheManager.GetCache("demoCache");
Tag tag = new Tag("Sports");
IDictionary<string,Product> result = cache.SearchService.GetByTag<Product>(tag);GetByTag<T>(String)
Gets all the cached objects with the wild card supported tag.
Declaration
IDictionary<string, T> GetByTag<T>(string wildCardExpression)Parameters
| Type | Name | Description |
|---|---|---|
| System.String | wildCardExpression | The wild card Expression to search with. |
Returns
| Type | Description |
|---|---|
| System.Collections.Generic.IDictionary<System.String, T> | Returns a dictionary containing the cache keys and associated objects with the type specified. |
Type Parameters
| Name | Description |
|---|---|
| T | Specifies the type of value obtained from the cache. |
Remarks
The special characters supported in wild search by NCache are:
1) "*" : Used as a substitute for zero or more characters in the string. 2) "?" : Used as a substitute for a single character in the string.
Examples
The following example demonstrates how to get the objects with the specified tag using wildcard.
ICache cache = CacheManager.GetCache("demoCache");Following tags are created and items are added in the cache with these tags
Tag[] tags = new Tag[3];
tags[0] = new Tag("Important Customers");
tags[1] = new Tag("East Coast Customers");
tags[2] = new Tag("West Coast Customers");
IDictionary<string, Customer> result = cache.SearchService.GetByTag<Customer>("*Customers");