CompressionMethod Property
Used to set the method of compression.
Syntax
sevenzip.getCompressionMethod([callback]) sevenzip.setCompressionMethod( compressionMethod, [callback])
Possible Values
0 (cmszLzma), 1 (cmszBzip2), 2 (cmszDelta), 3 (cmszCopy), 4 (cmszDeflate), 5 (cmszLzma2)
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 is used to specify different compression methods. By default the class uses the LZMA compression method (a value of 0). Supported values are:
Value | Method |
cmszLzma (0 - default) | LZMA |
cmszBzip2 (1) | BZip2 |
cmszDelta (2) | Delta |
cmszCopy (3) | Copy (no compression) |
cmszDeflate (4) | Deflate |
cmszLzma2 (5) | LZMA2 |
Data Type
Integer