DataModel class

August 19, 2020

Represents a data model

Index

Constructors

Public Properties

Protected Properties

Public Methods

Constructors

constructor

The default constructor. ⊕ new DataModel(): DataModel

Public Properties

aggrFunctions

The list of aggregate functions.

● aggrFunctions: AggrFunction[]

editors

The list of value editors.

● editors: ValueEditor[]

eqlcns

The License.

● eqlcns: EqLcns

id

The ID of the data mode.

● id: string

The list of links. It is used in odata broker.

● links: Link[]

name

The name of the data model.

● name: string

operators

The list of operators.

● operators: Operator[]

rootEntity

The root entity.

● rootEntity: Entity

version

The version of the data model.

● version: string

Protected Properties

mainEntity

● mainEntity: Entity | null = null

Public Methods

addDefaultValueEditors

Add default value editors.

▸ addDefaultValueEditors(): void

Returns void

addOrUpdateOperator

Add or update an operator.

▸ addOrUpdateOperator(id: string,caption: string,expr: string,format: string,kind?: DataKind): Operator

Parameters:

  • id: string - The id.
  • caption: string - The caption.
  • expr: string - The epxrpession.
  • format: string - The display format.
  • kind: DataKind, Default value = DataKind.Scalar - The def operand's kind.

Returns Operator - The operator.

addOrUpdateValueEditor

Add or update a value editor.

▸ addOrUpdateValueEditor(id: string,tag: EditorTag,resType: DataType): ValueEditor

Parameters:

  • id: string - The id.
  • tag: EditorTag - The tag.
  • resType: DataType - The result type.

Returns ValueEditor - The value editor.

buildQueryPath

Builds entities tree used in query.

▸ buildQueryPath(query: Query): Tree<Entity>

Parameters:

  • query: Query - The query.

Returns Tree<Entity>

checkAttrProperty

Checks wether attribute contains such property.

▸ checkAttrProperty(attrId: string,propName: string): boolean

Parameters:

  • attrId: string - The attribute ID.
  • propName: string - The property name.

Returns boolean - true if the attribute contains the property, otherwise false.

clear

Clears data model.

▸ clear(): void

Returns void

createQuery

Creates query.

▸ createQuery(): Query

Returns Query - The Query.

Finds link between two entities.

▸ findLink(entityFrom: Entity,entityTo: Entity): Link | null

Parameters:

  • entityFrom: Entity - The entity from.
  • entityTo: Entity - The entity to.

Returns Link | null - The link.

findOperatorById

Finds operator in model by its ID. This function runs through all operators inside specified model and returns the one with specified ID.

▸ findOperatorById(operatorId: string): Operator | null

Parameters:

  • operatorId: string - An operator ID.

Returns Operator | null - The operator or null.

getAggrFunctionCaption

Gets caption of the aggregate function.

▸ getAggrFunctionCaption(funcId: string): string

Parameters:

  • funcId: string - The function id.

Returns string - The caption.

getAggrFunctionFormat

Gets format of the aggregate function.

▸ getAggrFunctionFormat(funcId: string): string

Parameters:

  • funcId: string - The function id.

Returns string - The caption.

getAggrFunctions

Gets the list of aggegate functions.

▸ getAggrFunctions(): AggrFunction[]

Returns AggrFunction[] - AN array of aggregate functions.

getAttributeById

Gets entity attribute by its ID. This function runs through all attributes inside specified model (it's root entity and all its sub-entities).

▸ getAttributeById(attrId: string): EntityAttr | null

Parameters:

  • attrId: string - The attribute ID.

Returns EntityAttr | null - The attribute or null.

getAttributeText

Gets the attribute text.

▸ getAttributeText(attr: EntityAttr,format: string): string

Parameters:

  • attr: EntityAttr - The attribute.
  • format: string - The format.

Returns string - Formatted text.

getDateMacroValue

Gets date by its macro value.

▸ getDateMacroValue(macro: string): Date | null

Parameters:

  • macro: string - The macro value.

Returns Date | null - The date or null

getDateOrMacroValue

Gets date or macro by macro value.

▸ getDateOrMacroValue(macroValue: string): string | Date

Parameters:

  • macroValue: string - The macro value.

Returns string | Date - The date or macro valu.

getDefaultOperatorForAttr

Gets default operator for an attribute.

▸ getDefaultOperatorForAttr(attr: EntityAttr): Operator

Parameters:

Returns Operator - The operator.

getDefaultOperatorIdForAttr

▸ getDefaultOperatorIdForAttr(attr: EntityAttr): string

Parameters:

Returns string

getEditorById

Finds editor by its ID.

▸ getEditorById(editorId: string): ValueEditor | null

Parameters:

  • editorId: string - The editor ID.

Returns ValueEditor | null - The value editor or null.

getEntitiesInQuery

Get Entities used in query.

▸ getEntitiesInQuery(query: Query): Entity[]

Parameters:

  • query: Query - The query.

Returns Entity[]

getEntitiesTree

Gets entities tree.

▸ getEntitiesTree(opts: any,filterFunc?: (ent: Entity, attr: EntityAttr) => boolean): any

Parameters:

  • opts: any - The options.
  • filterFunc: (ent: Entity, attr: EntityAttr) => boolean, Optional - The filter function. Takes two parameters, Entity and EntityAttr (second parameter will be null for entities), and returns boolean (true if the corresponding entity or attribute).

Returns any - The tree of the entities and their attributes according to options and the filter function

getEntitiesTreeWithFilter

Gets entities tree due to filter.

▸ getEntitiesTreeWithFilter(filterFunc: any): Entity[]

Parameters:

  • filterFunc: any - The filter function. Takes two parameters, Entity and EntityAttr (second parameter will be null for entities), and returns boolean (true if the corresponding entity or attribute).

Returns Entity[] - The tree of the entities and their attributes according to the filter function

getEntityAttrById

Gets entity attribute by its ID. This function runs through all attributes inside specified entity and all its sub-entities.

▸ getEntityAttrById(entity: Entity,attrId: string): EntityAttr | null

Parameters:

  • entity: Entity
  • attrId: string

Returns EntityAttr | null - The attribute or null.

getEntityPathByAttr

Finds entity path by attribute

▸ getEntityPathByAttr(entity: Entity,attrId: string,sep: string,root: boolean): string

Parameters:

  • entity: Entity - The entity.
  • attrId: string - The attribute id.
  • sep: string - The separator.
  • root: boolean - The root option.

Returns string - The path.

getFirstAttributeByFilter

Finds first attribute by filter.

▸ getFirstAttributeByFilter(filterFunc: (attr: EntityAttr) => boolean): EntityAttr

Parameters:

  • filterFunc: (attr: EntityAttr) => boolean - The filter function. Takes EntityAttr object in parameter and returns boolean

Returns EntityAttr

getFirstUICAttr

▸ getFirstUICAttr(): EntityAttr

Returns EntityAttr

getFullEntityPathByAttr

Finds full entity path by attribute

▸ getFullEntityPathByAttr(attrId: string,sep: string): string

Parameters:

  • attrId: string - The attribute id.
  • sep: string - The separator.

Returns string - The path.

getId

Gets ID of the data model.

▸ getId(): string

Returns string - The ID.

getLinksByEntity

Get links with the entity.

▸ getLinksByEntity(entity: Entity): Link[]

Parameters:

  • entity: Entity - The entity.

Returns Link[] - The link.

getMainEntity

Gets the main entity of model

▸ getMainEntity(): Entity

Returns Entity - The main entity.

getName

Gets name of the data model.

▸ getName(): string

Returns string - The name.

getObject

Gets the data model object.

▸ getObject(): DataModel

Returns DataModel - Tha data model.

getOperand

Gets operand.

▸ getOperand(attr: EntityAttr,operator: Operator,index: number): Operand

Parameters:

  • attr: EntityAttr - The attribute.
  • operator: Operator - The operator.
  • index: number - The index.

Returns Operand - The operand.

getOperatorById

Finds operator in model by its ID. his function runs through all operators inside specified model and returns the one with specified ID.

▸ getOperatorById(operatorId: string): Operator

Parameters:

  • operatorId: string - Operator ID.

Returns Operator - The operator or special NullOperator object if operator is not found.

getOperatorIdsByDataType

Get operators for data type.

▸ getOperatorIdsByDataType(type: DataType): string[]

Parameters:

Returns string[] - The array of operator ids.

getRootEntity

Gets root entity of the data model.

▸ getRootEntity(): Entity

Returns Entity - The root entity.

getTimeMacroValue

Gets time by its macro value.

▸ getTimeMacroValue(macro: string): Date | null

Parameters:

  • macro: string - The macro value.

Returns Date | null - The date or null.

getTimeOrMacroValue

Gets time or macro by macro value.

▸ getTimeOrMacroValue(time: string): string | Date

Parameters:

  • time: string

Returns string | Date - The time or macro valu.

isDateMacro

Checks wether macro value is date.

▸ isDateMacro(macro: string): boolean

Parameters:

  • macro: string - The macro value.

Returns boolean

isEmpty

Checks wether the data model is empty.

▸ isEmpty(): boolean

Returns boolean - true if the data model is empty, otherwise false.

isTimeMacro

Checks wether macro value is time.

▸ isTimeMacro(macro: string): boolean

Parameters:

  • macro: string - The macro value.

Returns boolean

loadFromData

Loads data model from its JSON representation object.

▸ loadFromData(data: ModelPlainData): void

Parameters:

Returns void

loadFromJSON

Loads data model from JSON.

▸ loadFromJSON(stringJson: string): void

Parameters:

  • stringJson: string - The JSON string.

Returns void

rgdlce

Gets license.

▸ rgdlce(): boolean

Returns boolean - The license.

runThroughEntities

Scans model's entity tree and calls the callback functions for each attribute and entity.

▸ runThroughEntities(processAttribute: (attr: EntityAttr, opts: any) => void,processEntity: (entity: Entity, opts: any) => void): void

Parameters:

  • processAttribute: (attr: EntityAttr, opts: any) => void - The callback function which is called for each attribute in model's entity tree. The processed attribute is passed in the first function parameter.
  • processEntity: (entity: Entity, opts: any) => void - The callback function which is called for each entity in tree. The processed entity is passed in the first function parameter.

Returns void

setData

Sets data to data model.

▸ setData(model: ModelPlainData | string): void

Parameters:

  • model: ModelPlainData | string - Its JSON representation object or JSON string.

Returns void