R: isOpen(bamReader), isOpen(bamWriter): Checking for opened...

isOpen-methods {rbamtools} | R Documentation

## isOpen(bamReader), isOpen(bamWriter): Checking for opened file connection to BAM file.

### Description

Checks whether the given bamReader or bamWriter represents an opened connection to a BAM-file.

### Usage

    isOpen(con,rw="")

### Arguments

`con` | An instance of class bamReader or bamWriter.

`rw` | This argument is included solely for compatibility with the function template for connections in package base. It's not evaluated internally.

### Details

The function acutally checks, if the externalptr (reader or writer) slot has nil-value.

### Methods

`signature(object = "bamReader")`

  Returns TRUE when file connection is open.

`signature(object = "bamWriter")`

  Returns TRUE when file connection is open.

[Package rbamtools version 2.16.17 Index]