Checks if a class is abstract or not

Description

Checks if a class is abstract or not. A class is abstract if it has abstract methods.

Usage

## S3 method for class 'Class'
isAbstract(this, ...)

Arguments

Value

Returns TRUE if the class is abstract, otherwise FALSE.

Author(s)

Henrik Bengtsson

See Also

class(). setConstructorS3(). For more information see Class.

Examples

  if (isAbstract(RccViolationException))
    throw("The class RccViolationException should NOT be abstract.")

Results

R version 3.3.1 (2016-06-21) -- "Bug in Your Hair"
Copyright (C) 2016 The R Foundation for Statistical Computing
Platform: x86_64-pc-linux-gnu (64-bit)

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> library(R.oo)
Loading required package: R.methodsS3
R.methodsS3 v1.7.1 (2016-02-15) successfully loaded. See ?R.methodsS3 for help.
R.oo v1.20.0 (2016-02-17) successfully loaded. See ?R.oo for help.

Attaching package: 'R.oo'

The following objects are masked from 'package:methods':

    getClasses, getMethods

The following objects are masked from 'package:base':

    attach, detach, gc, load, save

> png(filename="/home/ddbj/snapshot/RGM3/R_CC/result/R.oo/isAbstract.Class.Rd_%03d_medium.png", width=480, height=480)
> ### Name: isAbstract.Class
> ### Title: Checks if a class is abstract or not
> ### Aliases: isAbstract.Class Class.isAbstract isAbstract,Class-method
> ### Keywords: internal methods programming
> 
> ### ** Examples
> 
>   if (isAbstract(RccViolationException))
+     throw("The class RccViolationException should NOT be abstract.")
> 
> 
> 
> 
> 
> dev.off()
null device 
          1 
>