Class NoMappingHelper<TYPE>

Mapper when no mapping is needed (FROM and TO are the same type). Simply spreads values without any property translation.

Type Parameters

TYPE

Hierarchy (View Summary)

MappingHelper<TYPE, TYPE>
- NoMappingHelper

Index

Constructors

Properties

mapFromTo mapToFrom

Methods

addFromToMapping addToFromMapping from getValueAs setValueAs to

Constructors

constructor

new NoMappingHelper<TYPE>(): NoMappingHelper<TYPE>
Type Parameters
- TYPE
Returns NoMappingHelper<TYPE>
Overrides MappingHelper.constructor
- Defined in libs/xt-type/src/transformation/mapping-helper.ts:126

Properties

mapFromTo

mapFromTo: Map<keyof TYPE, keyof TYPE> = ...

Forward mapping: FROM property -> TO property

mapToFrom

mapToFrom: Map<keyof TYPE, keyof TYPE> = ...

Reverse mapping: TO property -> FROM property

Methods

addFromToMapping

addFromToMapping(fromName: keyof TYPE, toName: keyof TYPE): void
Adds a mapping from a FROM property to a TO property
Parameters
- fromName: keyof TYPE
  The FROM-side property name
- toName: keyof TYPE
  The TO-side property name
Returns void
Inherited from MappingHelper.addFromToMapping
- Defined in libs/xt-type/src/transformation/mapping-helper.ts:75

addToFromMapping

addToFromMapping(toName: keyof TYPE, fromName: keyof TYPE): void
Adds a mapping from a TO property to a FROM property
Parameters
- toName: keyof TYPE
  The TO-side property name
- fromName: keyof TYPE
  The FROM-side property name
Returns void
Inherited from MappingHelper.addToFromMapping
- Defined in libs/xt-type/src/transformation/mapping-helper.ts:85

from

from(
value: TYPE | null | undefined,
oldFrom?: TYPE | null,
): TYPE | null | undefined
Merges the TO value into the FROM value by spreading both
Parameters
- value: TYPE | null | undefined
  The value to map from
- OptionaloldFrom: TYPE | null
  Optional existing value to merge into
Returns TYPE | null | undefined
The merged value
Overrides MappingHelper.from
- Defined in libs/xt-type/src/transformation/mapping-helper.ts:145

getValueAs

getValueAs(toName: keyof TYPE, parent: TYPE): any
Directly reads a property from the parent (no translation needed)
Parameters
- toName: keyof TYPE
  The property name
- parent: TYPE
  The object to read from
Returns any
The property value
Overrides MappingHelper.getValueAs
- Defined in libs/xt-type/src/transformation/mapping-helper.ts:155

setValueAs

setValueAs(toName: keyof TYPE, parent: TYPE, value: any): void
Directly sets a property on the parent (no translation needed)
Parameters
- toName: keyof TYPE
  The property name
- parent: TYPE
  The object to modify
- value: any
  The value to set
Returns void
Overrides MappingHelper.setValueAs
- Defined in libs/xt-type/src/transformation/mapping-helper.ts:165

to

to(value: TYPE | null | undefined, oldTo?: TYPE | null): TYPE | null | undefined
Merges the FROM value into the TO value by spreading both
Parameters
- value: TYPE | null | undefined
  The value to map
- OptionaloldTo: TYPE | null
  Optional existing value to merge into
Returns TYPE | null | undefined
The merged value
Overrides MappingHelper.to
- Defined in libs/xt-type/src/transformation/mapping-helper.ts:136