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Class RunReferencesDecorator

References decorator that automatically opens to newly added components that implement IOpenable interface and closes removed components that implement ICloseable interface.

Hierarchy

Implements

  • any
  • any

Index

Constructors

Properties

Methods

Constructors

constructor

  • Creates a new instance of the decorator.

    Parameters

    • nextReferences: IReferences

      the next references or decorator in the chain.

    • topReferences: IReferences

      the decorator at the top of the chain.

    Returns RunReferencesDecorator

Properties

_opened

_opened: boolean = false

nextReferences

nextReferences: IReferences

The next references or decorator in the chain.

topReferences

topReferences: IReferences

The decorator at the top of the chain.

Methods

close

  • close(correlationId: string, callback?: function): void

  • Closes component and frees used resources.

    Parameters

    • correlationId: string

      (optional) transaction id to trace execution through call chain.

    • Optional callback: function

      callback function that receives error or null no errors occured.

        • (err: any): void

        • Parameters

          • err: any

          Returns void

    Returns void

find

  • find<T>(locator: any, required: boolean): T[]

  • Gets all component references that match specified locator.

    throws

    a [[ReferenceException]] when required is set to true but no references found.

    Type parameters

    • T

    Parameters

    • locator: any

      the locator to find a reference by.

    • required: boolean

      forces to raise an exception if no reference is found.

    Returns T[]

    a list with matching component references.

getAll

  • getAll(): any[]

  • Gets all component references registered in this reference map.

    Returns any[]

    a list with component references.

getAllLocators

  • getAllLocators(): any[]

  • Gets locators for all registered component references in this reference map.

    Returns any[]

    a list with component locators.

getOneOptional

  • getOneOptional<T>(locator: any): T

  • Gets an optional component reference that matches specified locator.

    Type parameters

    • T

    Parameters

    • locator: any

      the locator to find references by.

    Returns T

    a matching component reference or null if nothing was found.

getOneRequired

  • getOneRequired<T>(locator: any): T

  • Gets a required component reference that matches specified locator.

    throws

    a [[ReferenceException]] when no references found.

    Type parameters

    • T

    Parameters

    • locator: any

      the locator to find a reference by.

    Returns T

    a matching component reference.

getOptional

  • getOptional<T>(locator: any): T[]

  • Gets all component references that match specified locator.

    Type parameters

    • T

    Parameters

    • locator: any

      the locator to find references by.

    Returns T[]

    a list with matching component references or empty list if nothing was found.

getRequired

  • getRequired<T>(locator: any): T[]

  • Gets all component references that match specified locator. At least one component reference must be present. If it doesn't the method throws an error.

    throws

    a [[ReferenceException]] when no references found.

    Type parameters

    • T

    Parameters

    • locator: any

      the locator to find references by.

    Returns T[]

    a list with matching component references.

isOpen

  • isOpen(): boolean

  • Checks if the component is opened.

    Returns boolean

    true if the component has been opened and false otherwise.

open

  • open(correlationId: string, callback?: function): void

  • Opens the component.

    Parameters

    • correlationId: string

      (optional) transaction id to trace execution through call chain.

    • Optional callback: function

      callback function that receives error or null no errors occured.

        • (err: any): void

        • Parameters

          • err: any

          Returns void

    Returns void

put

  • put(locator: any, component: any): void

  • Puts a new reference into this reference map.

    Parameters

    • locator: any

      a locator to find the reference by.

    • component: any

      a component reference to be added.

    Returns void

remove

  • remove(locator: any): any

  • Removes a previously added reference that matches specified locator. If many references match the locator, it removes only the first one. When all references shall be removed, use removeAll method instead.

    see

    removeAll

    Parameters

    • locator: any

      a locator to remove reference

    Returns any

    the removed component reference.

removeAll

  • removeAll(locator: any): any[]

  • Removes all component references that match the specified locator.

    Parameters

    • locator: any

      the locator to remove references by.

    Returns any[]

    a list, containing all removed references.

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