CompressionMethod Property

The compression method to use.

Syntax

 zip.getCompressionMethod([callback])
 zip.setCompressionMethod( compressionMethod, [callback])

Possible Values

  0 (cmDeflate), 
  1 (cmPPMd), 
  2 (cmBzip2)

Default Value

0

Callback

The 'callback' parameter specifies a function which will be called when the operation completes (or an error is encountered). If the 'callback' parameter is not specified, then the method will block and will not return until the operation completes (or an error is encountered).

The callback for the getCompressionMethod([callback]) method is defined as:

function(err, data){ }

'err' is the error that occurred. If there was no error, then 'err' is 'null'.

'data' is the value returned by the method.

The callback for the setCompressionMethod([callback]) method is defined as:

function(err){ }

'err' is the error that occurred. If there was no error, then 'err' is 'null'.

'err' has 2 properties which hold detailed information:

err.code
err.message

Remarks

This property specifies the compression method to use. By default the class uses the Deflate compression method (a value of 0). Supported values are:

• 0 (cmDeflate - default)
• 1 (cmPPMd)
• 2 (cmBzip2)

Data Type

Integer