IRepositoryRead

Full name Microsoft.VisualBasic.ComponentModel.DataSourceModel.Repository.IRepositoryRead`2 Assembly Microsoft.VisualBasic.Runtime Members 4

Interface to support reading entities from the backing store

00 Remarks

In this architecture there is a seperate read and write interface but often this pattern has just the one interface for both functions

Type Parameters

Name	Description
`TEntity`	The key-identified type of entity we are reading
`TKey`	The type of the key

01 Syntax

Microsoft.VisualBasic.ComponentModel.DataSourceModel.Repository.IRepositoryRead`2

02 Methods

Name	Overloads	Summary
Exists	1	Does a record exist in the repository identified by this key
GetByKey	1	Get the entity uniquely identified by the given key
GetWhere	1	Get a set of entities from the repository that match the where clause
GetAll	1	Get all of this type of thing from the repository

03 Members

method Exists #

Exists(`0)

Does a record exist in the repository identified by this key

Parameters

Name	Type	Description
`key`	`0	The unique identifier of the entity we are looking for

method GetByKey #

GetByKey(`0)

Get the entity uniquely identified by the given key

Parameters

Name	Type	Description
`key`	`0	The unique identifier to use to get the entity

method GetWhere #

GetWhere(Func(Of `1, Boolean))

Get a set of entities from the repository that match the where clause

Parameters

Name	Type	Description
`clause`	Func(Of `1, Boolean)	A function to apply to filter the results from the repository

method GetAll #

GetAll

Get all of this type of thing from the repository

Remarks

returns an IQueryable so this request can be filtered further