Concepts

• Jun 11, 2019

The topics in this section will provide you with an extensive knowledge of the eXpress Persistent Objects for .NET.

This section includes the following topics.

• Basics of Creating Persistent Objects for Existing Data Tables
• Creating a Persistent Object
• Creating a Session
• Creating an XPCollection
• Custom Collection Types
• Deferred and Immediate Object Deletion
• Explicit Units of Work
• Filtering Basics
• Generating Persistent Objects for Existing Data Tables
• How to: Add Persistence to an Existing Hierarchy by Using Session-less Persistent Objects
• How to: Add Persistence to an Existing Hierarchy by Changing the Base Inheritance
• How to: Connect to a Data Store
• Inheritance Mapping
• NULL Value Handling Specifics
• Nested Units of Work
• Optimistic Concurrency Control
• Pageable Collections
• Property Descriptors
• Relationships Between Objects
• Saving Persistent Objects
• Simplified Criteria Syntax
• Simplified Property Syntax
• Sorting Basics
• Using Explicit Transactions
• Using Transactions
• Working with Sessions
• XPCollection Concepts
• XPDataView Concepts
• XPO Classes Comparison
• XPView Concepts
• XPO Profiler