EntityComparator

Index

Constructors

• constructor

Methods

• diffEntities
• mapResult
• matching
• prepareEntity
• isComparable

Constructors

constructor

• new EntityComparator(metadata: IMetadataStorage, platform: Platform): EntityComparator

• Parameters

  • metadata: IMetadataStorage

  • platform: Platform

  Returns EntityComparator

Methods

diffEntities

• diffEntities<T>(entityName: string, a: EntityData<T>, b: EntityData<T>): EntityData<T>

• Computes difference between two entities.

  ---

  Type parameters

  • T

  Parameters

  • entityName: string

  • a: EntityData<T>

  • b: EntityData<T>

  Returns EntityData<T>

mapResult

• mapResult<T>(entityName: string, result: EntityDictionary<T>): EntityData<T>

• Maps database columns to properties.

  ---

  Type parameters

  • T

  Parameters

  • entityName: string

  • result: EntityDictionary<T>

  Returns EntityData<T>

matching

• matching<T>(entityName: string, a: EntityData<T>, b: EntityData<T>): boolean

• Type parameters

  • T

  Parameters

  • entityName: string

  • a: EntityData<T>

  • b: EntityData<T>

  Returns boolean

prepareEntity

• prepareEntity<T>(entity: T): EntityData<T>

• Removes ORM specific code from entities and prepares it for serializing. Used before change set computation. References will be mapped to primary keys, collections to arrays of primary keys.

  ---

  Type parameters

  • T

  Parameters

  • entity: T

  Returns EntityData<T>

staticisComparable

• isComparable<T>(prop: EntityProperty<T, any>, root: EntityMetadata<any>): boolean

• perf: used to generate list of comparable properties during discovery, so we speed up the runtime comparison

  ---

  Type parameters

  • T

  Parameters

  • prop: EntityProperty<T, any>

  • root: EntityMetadata<any>

  Returns boolean