StoreFileExtPipe {bdpar}

Class to get the file's extension field of an Instance

Description

Gets the extension of a file. Creates the extension property which indicates extension of the file.

Note

StoreFileExtPipe will automatically invalidate the Instance if it is not able to find the extension from the path field.

Inherit

This class inherits from GenericPipe and implements the pipe abstract function.

Super class

bdpar::GenericPipe -> StoreFileExtPipe

Methods

Public methods

• StoreFileExtPipe$new()

• StoreFileExtPipe$pipe()

• StoreFileExtPipe$obtainExtension()

• StoreFileExtPipe$clone()

Inherited methods

• bdpar::GenericPipe$getAlwaysBeforeDeps()
• bdpar::GenericPipe$getNotAfterDeps()
• bdpar::GenericPipe$getPropertyName()
• bdpar::GenericPipe$hash()
• bdpar::GenericPipe$setAlwaysBeforeDeps()
• bdpar::GenericPipe$setNotAfterDeps()
• bdpar::GenericPipe$setPropertyName()

Method new()

Creates a StoreFileExtPipe object.

Usage

StoreFileExtPipe$new(
  propertyName = "extension",
  alwaysBeforeDeps = list(),
  notAfterDeps = list()
)

Arguments

propertyName

A character value. Name of the property associated with the GenericPipe.

alwaysBeforeDeps

A list value. The dependencies alwaysBefore (GenericPipes that must be executed before this one).

notAfterDeps

A list value. The dependencies notAfter (GenericPipes that cannot be executed after this one).

Method pipe()

Preprocesses the Instance to obtain the extension of Instance.

Usage

StoreFileExtPipe$pipe(instance)

Arguments

instance

A Instance value. The Instance to preprocess.

Returns

The Instance with the modifications that have occurred in the pipe.

Method obtainExtension()

Gets of extension of the path.

Usage

StoreFileExtPipe$obtainExtension(path)

Arguments

path

A character value. The path of the file to get the extension.

Returns

Extension of the path.

Method clone()

The objects of this class are cloneable with this method.

Usage

StoreFileExtPipe$clone(deep = FALSE)

Arguments

deep

Whether to make a deep clone.

See Also

AbbreviationPipe, ContractionPipe, File2Pipe, FindEmojiPipe, FindEmoticonPipe, FindHashtagPipe, FindUrlPipe, FindUserNamePipe, GuessDatePipe, GuessLanguagePipe, Instance, InterjectionPipe, MeasureLengthPipe, GenericPipe, ResourceHandler, SlangPipe, StopWordPipe, TargetAssigningPipe, TeeCSVPipe, ToLowerCasePipe