ArxLinkEntity class · DynamoDB in C#

Definition

Namespace: ARX.SDK.Services
Package: ARX.SDK

public class ArxLinkEntity

A join from a query's row source (or from another link) to another table: the column on each side, the join (JoinOperator), an alias, the columns it returns (read back as alias.column) and its own criteria.

Constructor

ArxLinkEntity()
An empty link; set its tables, columns and join.

ArxLinkEntity(string linkToEntityName, string linkFromAttributeName, string linkToAttributeName, ArxJoinOperator joinOperator)

A join to another table: JOIN linkTo ON linkTo.linkToAttribute = from.linkFromAttribute.

Parameter	Type	Description
`linkToEntityName`	`string`	The table joined.
`linkFromAttributeName`	`string`	The column on the query's side (or the parent link's).
`linkToAttributeName`	`string`	The column on the joined table.
`joinOperator`	`ArxJoinOperator`	INNER, LEFT or RIGHT; DEFAULT joins as INNER.

Properties

string LinkFromAttributeName { get; set; }
The column on the query's side (or the parent link's) that the join matches.
string? LinkFromEntityName { get; set; }
The table on the query's side; informational, the join starts from the query or the parent link.
string LinkToEntityName { get; set; }
The table joined.
string LinkToAttributeName { get; set; }
The column on the joined table that the join matches.
ArxColumnSet ColumnSet { get; set; }
The joined table's columns to read, returned as alias.column.
string? EntityAlias { get; set; }
The join's alias: the prefix of its columns in the result, and the name conditions and orders use for it.
ArxFilterExpression LinkCriteria { get; set; }
Conditions on the joined table, applied in the join itself (a LEFT join keeps rows with no match).
ArxJoinOperator JoinOperator { get; set; }
INNER, LEFT or RIGHT; DEFAULT joins as INNER.
List<ArxLinkEntity> LinkEntities { get; set; }
Further joins from this joined table.