Defining Neo4j Relationships

Tab

Property

Description

Additional Information

Parent

Specifies the parent node of the relationship

Child

Specifies the child node of the relationship

Physical Only

Specifies whether the relationship is generated only in the physical view of the model

Generate

Specifies whether a DDL statement is generated for the node during forward engineering

General

Type

Specifies the relationship type

Identifying: Indicates that the child entity is dependent on the parent entity for its identity and cannot exist without it

Non-Identifying: Indicates that one instance of the parent entity is related to multiple instances of the child entity

Null Option

Specifies the null option in case of Non-Identifying relationships

Available only when Type is set to Non-Identifying

Nulls Allowed: Indicates that the foreign key within the child entity accepts null values

Nulls Not Allowed: Indicates that the foreign key within the child entity does not accept null values

Physical Name

Specifies the physical name of the relationship

Relationship Type

Specifies a user-defined type of relationship between the parent and child nodes

Properties

Specifies the additional identifying property of the relationship

Cardinality

Specifies the number of child entity instances that each parent entity is connected to

Zero, One or More: Indicates that each parent in the relationship is connected to zero, one, or more instances of the child entity

One or More (P): Indicates that each parent in the relationship is connected to one or more instances of the child entity

Zero or One (Z): Indicates that each parent in the relationship is connected to zero or one instance of the child entity

Cardinality Value

Specifies the cardinality value of the relationship

Role Name

Key Group

Specifies the primary key index that migrates from the parent table to the child table in the current relationship

Migrated Column

Specifies the primary key field that is migrated from the parent table to the child

Logical Role Name

Specifies the logical role name for the selected primary key field

Role Name

Specifies the role name for the selected primary key field

RI Actions

Child Delete Rule

Specifies the referential integrity trigger action that occurs when data in the child entity is deleted

Child Insert Rule

Specifies the referential integrity trigger action that occurs when data is inserted to the child entity

Child Update Rule

Specifies the referential integrity trigger action that occurs when data in the child entity is updated

Parent Delete Rule

Specifies the referential integrity trigger action that occurs when data in the parent entity is deleted

Parent Insert Rule

Specifies the referential integrity trigger action that occurs when data is inserted to the parent entity

Parent Update Rule

Specifies the referential integrity trigger action that occurs when data in the parent entity is updated

Trigger Template

Child Delete Trigger Template

Specifies the referential integrity trigger template that is used when data in the child entity is deleted

Child Insert Trigger Template

Specifies the referential integrity trigger template that is used when data is inserted to the child entity

Child Update Trigger Template

Specifies the referential integrity trigger template that is used when data in the child entity is updated

Parent Delete Trigger Template

Specifies the referential integrity trigger template that is used when data in the parent entity is deleted

Parent Insert Trigger Template

Specifies the referential integrity trigger template that is used when data is inserted to the parent entity

Parent Update Trigger Template

Specifies the referential integrity trigger template that is used when data in the parent entity is updated