• Products
  • Solutions
  • Customers
  • Resources
  • Company
  • Pricing
  • Download
Try Playground
  • Client Side API Programming
  • Named Tags
  • Overview
Show / Hide Table of Contents
  • Programmer's Guide
  • Setting Up Development Environment
    • .NET
      • Client API Prerequisites
      • Server-side API Prerequisites
    • Java
      • Client API Prerequisites
      • Server-side API Prerequisites
    • Python
      • Client API Prerequisites
    • Node.js
      • Client API Prerequisites
  • Client Side API Programming
    • Error Handling
    • Troubleshooting
    • Cache Keys and Data
    • How to Connect to Cache
    • Basic Operations - An Overview
      • Add Data
      • Update/Insert Data
      • Retrieve Data
      • Remove Data
    • Groups
      • Overview
      • Add/Update Data with Groups
      • Retrieve Data with Groups
      • Remove Data with Group
      • Search Group Data Using SQL
      • Delete Group Data Using SQL
    • Tags
      • Overview
      • Add/Update Data with Tags
      • Retrieve Data with Tags
      • Remove Data with Tags
      • Search Tag Data Using SQL
      • Delete Tag Data Using SQL
    • Named Tags
      • Overview
      • Add/Update Data with Named Tags
      • Remove Data with Named Tags
      • Search Data with Named Tags Using SQL
      • Delete Data with Named Tags Using SQL
    • Expirations
      • Overview
      • Absolute Expiration
      • Sliding Expiration
    • Data Dependency
      • Key Dependency
      • Multi-Cache Dependency
    • Dependency on Database
      • SQL Server
      • Oracle
      • OleDB with Polling
      • CLR Procedures in SQL Server
    • Dependency on External Source
      • File Dependency
      • Custom Dependency
      • Aggregate Dependency
    • Locks
      • Types of Locking
      • Pessimistic Locking
      • Optimistic Locking
    • SQL Query
      • Overview
      • Define Indexes Programmatically
      • Query with ExecuteReader and ExecuteScalar
      • Delete Data with ExecuteNonQuery
      • SQL Reference
    • LINQ Query
      • Overview
      • LINQ Query for Objects
      • LINQ Reference
    • Data Structures
      • Overview
      • List
      • Queue
      • Set
      • Dictionary
      • Counter
      • Invalidation Attributes
      • Searchable Attributes
      • Query on Data Structures
      • Remove from Data Structure
    • Events
      • Cache Level Events
      • Item Level Events
      • Management Level Events
    • Pub/Sub Messaging
      • Overview
      • Topics
      • Publish Messages
      • Subscribe to a Topic
      • Pub/Sub Events
    • Continuous Query
      • Overview
      • Use Continuous Query
    • Stream Processing
      • Add/Update Stream Data
      • Retrieve Stream Data
    • JSON
      • Overview
      • Use JSON Objects
      • Query JSON Data
    • Security API
      • Login with Credentials
    • Management API
    • Clear Cache
    • Error Logging
    • Location Affinity
  • Server-side API Programming
    • Loader and Refresher
      • Overview
      • Implement Loader and Refresher
      • Components of Loader/Refresher
    • Data Source Providers
      • Read-through
        • Implement Read-through
        • Use Read-through
      • Write-through
        • Implement Write-through
        • Use Write-through
        • Use Write-behind
    • Custom Dependency
      • Implement Extensible Dependency
      • Implement Bulk Extensible Dependency
      • Implement Notify Extensible Dependency
    • Bridge Conflict Resolver
    • Entry Processor
      • Overview
      • Implement Entry Processor
    • MapReduce
      • Overview
      • Implement MapReduce
      • Use MapReduce
    • MapReduce Aggregator
      • Overview
      • Implement and Use Aggregator
    • Compact Serialization
  • Client Side Features
    • ASP.NET Core Caching
      • Session Storage
        • Session Provider
        • IDistributedCache
        • Sessions Usage
        • Multi-site Session Provider
        • Session Sharing with ASP.NET
      • SignalR
        • NCache Extension for SignalR Core
      • Response Caching
        • Configure and Use
        • Configure with IDistributedCache
      • Data Caching
        • NCache API
        • IDistributedCache API
      • Data Protection Provider
        • Configure
    • Java Web App Caching
      • Web Sessions
        • Overview
        • Configure App
          • Add Maven Dependencies
          • Deploy Application
        • Multi-site Sessions
    • Node.js App Caching
      • Web Sessions
    • ASP.NET Caching Benefits and Overview
      • ASP.NET Session State Provider Properties
      • Multi-region ASP.NET Session State Provider Configuration
      • Session Sharing between ASP.NET and ASP.NET Core
      • ASP.NET SignalR Backplane
        • NCache Extension for SignalR
      • ASP.NET View State Caching
        • View State Content Optimization Configuration
        • Group View State with Sessions
        • Limit View State Caching
        • Page Level Grouping
      • ASP.NET Output Cache
        • Output Caching Provider Overview
        • Output Cache with Custom Hooks
  • .NET Third Party Integrations
    • Entity Framework (EF) Core
      • Installation
      • Configure
      • EF Core Extension Methods
        • Extension Methods
        • Cache Handle
        • Caching Options
        • Query Deferred API
      • Logging in EF Core
    • Entity Framework EF 6
      • EF Second Level Cache
      • EF Caching Resync Provider
      • EF Caching Configuration File
    • NHibernate
      • Second Level Cache
      • Query Caching
      • Synchronize Database with Cache
    • Debug NCache Providers in Visual Studio
  • Java Third Party Integrations
    • Hibernate
      • Second Level Cache
      • Configure Cacheable Objects and Regions
      • Configure Application
      • Query Caching
    • Spring
      • Overview
      • Use NCache with Spring
        • Configure Generic Provider
        • Configure JCache Spring Caching Provider
        • Configure Caching Declaration
        • Configure Spring Sessions
    • JCache API
      • CRUD Operations
      • Expiration
      • Events
  • Third-Party Wrappers
    • AppFabric to NCache Migration
      • AppFabric API vs. NCache API
      • Configuration Differences Between AppFabric and NCache
      • Migrating from an AppFabric Application to NCache
    • Redis to NCache Migration
      • Redis to NCache Migration
    • Memcached Wrapper
      • Memcached Gateway Approach
      • Memcached Client Plugin for .NET

Named Tags in Data Caching: Overview

Named Tags is a feature provided by NCache that is an enhanced form of Tags for efficient data caching and retrieval. They associate particular information with the items in the form of key-value pairs at runtime. In the case of Tags, the keyword(s) associated with a cache item must be string-based identifiers. The advantage of Named Tags over Tags is that they do not have this condition for the identifiers to hold a specific data type, whereas, in Tags and Groups, the data type can only be a string.

Note

This feature is only available in NCache Enterprise.

By using Named Tags in data caching, the user can provide a name along with a value to bookmark a cache item, and they are independent of data types. Hence, the user can store additional information of any primitive type along with the cache item and use it later for further operations. The following is the list of supported primitive data types.

  • int
  • long
  • float
  • double
  • char
  • string
  • decimal
  • bool
  • DateTime

Tags and Named Tags provide high data relevance, ensure efficient data caching, and makes it easier for the user to access the data set based on the keyword(s). Moreover, by using Tags or Named Tags, you can define indexes at runtime - improving performance and accessibility.

When to Use Named Tags in Data Caching

Let's suppose, there is a company having data of all customers, products, or orders in a large database. The attributes of products include ProductID, ProductName, or Category. The company has a flash sale on some items for a day that categorizes a particular set of data based on this discount. Instead of adding an attribute to the class and then removing that later, the user can add a Named Tag to those products that hold the discount.

This way, the user can append this information to the existing class of Products at runtime; instead of adding a whole new attribute to the class. Considering the given scenario, the Named Tags added to the class Product may have Named Tags where the name of the tag can be FlashSaleDiscount, and the value of this tag depicts that the product will have a 50% discount, so the value can be 0.5.

The following diagram depicts the whole scenario visually.

Using Named Tags in NCache

Here users are required to provide the list of Named Tags, each having two parameters, "key" (name of a tag) as a string and "value" (assigned value) as any primitive type. NCache then allows you to search your objects through these Named Tags.

Properties of Named Tags

Retrieve/Remove using Named Tags
These identifying marks can help you in finding and/or removing the items from the cache.

Support for Multiple Named Tags
You can add more than one key-value pair in Named Tags with any cache item.

Many-to-Many Grouping
Like Tags, Named Tags provide a many-to-many grouping where one tag can contain multiple cached items and one cached item can belong to multiple Tags.

Case Sensitive
Named Tags are case-insensitive.

Querying Data using Named Tags
NCache supports Named Tags in queries.

Comparison Between Groups, Tags, and Named Tags

The following table shows the comparison between the functionalities of Groups, Tags, and Named Tags.

Named Tags Tags Groups
Provided in the form of a dictionary. Provided in the form of an array of Tags. Provided in the form of string.
Can be of any primitive data type. String-based only. String-based only.

See Also

Add/Update Cache Data with Named Tags
SQL Query with NamedTags
SQL Delete with NamedTags
Data Expiration
Tag Cache Data

In This Article
  • When to Use Named Tags in Data Caching
  • Properties of Named Tags
  • Comparison Between Groups, Tags, and Named Tags
  • See Also

Contact Us

PHONE

+1 (214) 764-6933   (US)

+44 20 7993 8327   (UK)

 
EMAIL

sales@alachisoft.com

support@alachisoft.com

NCache
  • NCache Enterprise
  • NCache Professional
  • Edition Comparison
  • NCache Architecture
  • Benchmarks
Download
Pricing
Try Playground

Deployments
  • Cloud (SaaS & Software)
  • On-Premises
  • Kubernetes
  • Docker
Technical Use Cases
  • ASP.NET Sessions
  • ASP.NET Core Sessions
  • Pub/Sub Messaging
  • Real-Time ASP.NET SignalR
  • Internet of Things (IoT)
  • NoSQL Database
  • Stream Processing
  • Microservices
Resources
  • Magazine Articles
  • Third-Party Articles
  • Articles
  • Videos
  • Whitepapers
  • Shows
  • Talks
  • Blogs
  • Docs
Customer Case Studies
  • Testimonials
  • Customers
Support
  • Schedule a Demo
  • Forum (Google Groups)
  • Tips
Company
  • Leadership
  • Partners
  • News
  • Events
  • Careers
Contact Us

  • EnglishChinese (Simplified)FrenchGermanItalianJapaneseKoreanPortugueseSpanish

  • Contact Us
  •  
  • Sitemap
  •  
  • Terms of Use
  •  
  • Privacy Policy
© Copyright Alachisoft 2002 - 2025. All rights reserved. NCache is a registered trademark of Diyatech Corp.
Back to top