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Constants Constants' Details

:: com :: sun :: star :: packages :: zip ::

constants group ZipConstants
Description
defines the constants used by the ZIP interfaces.
Constants
DEFLATED Compression method for the deflate algorithm (the only one currently supported).  
NO_COMPRESSION Compression level for no compression.  
BEST_SPEED Compression level for fastest compression  
BEST_COMPRESSION Compression level for best compression  
DEFAULT_COMPRESSION Default compression level.  
FILTERED Compression strategy best used for data consisting mostly of small values with a somewhat random distribution. Forces more Huffman coding and less string matching.  
HUFFMAN_ONLY Compression strategy for Huffman coding only.  
DEFAULT_STRATEGY Default compression strategy  
STORED entry is uncompressed  
DEF_MEM_LEVEL entry is uncompressed  
LOCSIG Header Signature: "PK\003\004"  
EXTSIG Header Signature: "PK\007\008"  
CENSIG Header Signature: "PK\001\002"  
ENDSIG Header Signature: "PK\005\006"  
SPANSIG Header Signature: "PK\007\008"  
LOCHDR LOC header size in bytes (including signatures)  
EXTHDR EXT header size in bytes (including signatures)  
CENHDR CEN header size in bytes (including signatures)  
ENDHDR END header size in bytes (including signatures)  
LOCVER LOC header field "version needed to extract" offset  
LOCFLG LOC header field "general purpose bit flags" offset  
LOCHOW LOC header field "compression method" offset  
LOCTIM LOC header field "modification time" offset  
LOCCRC LOC header field "crc of uncompressed data" offset  
LOCSIZ LOC header field "compressed data size" offset  
LOCLEN LOC header field "uncompressed data size" offset  
LOCNAM LOC header field "filename length" offset  
LOCEXT LOC header field "extra field length" offset  
EXTCRC EXT header field "crc of uncompressed data" offsets  
EXTSIZ EXT header field "compressed size" offsets  
EXTLEN EXT header field "uncompressed size" offsets  
CENVEM CEN header field "version made by" offset  
CENVER CEN header field "version needed to extract" offset  
CENFLG CEN header field "general purpose bit flags" offset  
CENHOW CEN header field "compression method" offset  
CENTIM CEN header field "modification time" offset  
CENDAT CEN header field "modification time" offset  
CENCRC CEN header field "crc of uncompressed data" offset  
CENSIZ CEN header field "compressed size" offset  
CENLEN CEN header field "uncompressed size" offset  
CENNAM CEN header field "length of filename" offset  
CENEXT CEN header field "length of extra field" offset  
CENCOM CEN header field "file comment length" offset  
CENDSK CEN header field "disk number start" offset  
CENATT CEN header field "internal file attributes" offset  
CENATX CEN header field "external file attributes" offset  
CENOFF CEN header field "offset of local header" offset  
ENDSUB END header field "number of entries on this disk" offset  
ENDTOT END header field "total number of entries" offset  
ENDSIZ END header field "central directory size" offset  
ENDOFF END header field "central directory offset" offset  
ENDCOM END header field "size of zip file comment" offset  
Constants' Details
DEFLATED
const short DEFLATED = 8;
Description
Compression method for the deflate algorithm (the only one currently supported).
NO_COMPRESSION
const short NO_COMPRESSION = 0;
Description
Compression level for no compression.
BEST_SPEED
const short BEST_SPEED = 1;
Description
Compression level for fastest compression
BEST_COMPRESSION
const short BEST_COMPRESSION = 9;
Description
Compression level for best compression
DEFAULT_COMPRESSION
const short DEFAULT_COMPRESSION = -1;
Description
Default compression level.
FILTERED
const short FILTERED = 1;
Description
Compression strategy best used for data consisting mostly of small values with a somewhat random distribution. Forces more Huffman coding and less string matching.
HUFFMAN_ONLY
const short HUFFMAN_ONLY = 2;
Description
Compression strategy for Huffman coding only.
DEFAULT_STRATEGY
const short DEFAULT_STRATEGY = 0;
Description
Default compression strategy
STORED
const short STORED = 0;
Description
entry is uncompressed
DEF_MEM_LEVEL
const short DEF_MEM_LEVEL = 8;
Description
entry is uncompressed
LOCSIG
const long LOCSIG = 0x04034b50;
Description
Header Signature: "PK\003\004"
EXTSIG
const long EXTSIG = 0x08074b50;
Description
Header Signature: "PK\007\008"
CENSIG
const long CENSIG = 0x02014b50;
Description
Header Signature: "PK\001\002"
ENDSIG
const long ENDSIG = 0x06054b50;
Description
Header Signature: "PK\005\006"
SPANSIG
const long SPANSIG = 0x08074b50;
Description
Header Signature: "PK\007\008"
LOCHDR
const short LOCHDR = 30;
Description
LOC header size in bytes (including signatures)
EXTHDR
const short EXTHDR = 16;
Description
EXT header size in bytes (including signatures)
CENHDR
const short CENHDR = 46;
Description
CEN header size in bytes (including signatures)
ENDHDR
const short ENDHDR = 22;
Description
END header size in bytes (including signatures)
LOCVER
const short LOCVER = 4;
Description
LOC header field "version needed to extract" offset
LOCFLG
const short LOCFLG = 6;
Description
LOC header field "general purpose bit flags" offset
LOCHOW
const short LOCHOW = 8;
Description
LOC header field "compression method" offset
LOCTIM
const short LOCTIM = 10;
Description
LOC header field "modification time" offset
LOCCRC
const short LOCCRC = 14;
Description
LOC header field "crc of uncompressed data" offset
LOCSIZ
const short LOCSIZ = 18;
Description
LOC header field "compressed data size" offset
LOCLEN
const short LOCLEN = 22;
Description
LOC header field "uncompressed data size" offset
LOCNAM
const short LOCNAM = 26;
Description
LOC header field "filename length" offset
LOCEXT
const short LOCEXT = 28;
Description
LOC header field "extra field length" offset
EXTCRC
const short EXTCRC = 4;
Description
EXT header field "crc of uncompressed data" offsets
EXTSIZ
const short EXTSIZ = 8;
Description
EXT header field "compressed size" offsets
EXTLEN
const short EXTLEN = 12;
Description
EXT header field "uncompressed size" offsets
CENVEM
const short CENVEM = 4;
Description
CEN header field "version made by" offset
CENVER
const short CENVER = 6;
Description
CEN header field "version needed to extract" offset
CENFLG
const short CENFLG = 8;
Description
CEN header field "general purpose bit flags" offset
CENHOW
const short CENHOW = 10;
Description
CEN header field "compression method" offset
CENTIM
const short CENTIM = 12;
Description
CEN header field "modification time" offset
CENDAT
const short CENDAT = 14;
Description
CEN header field "modification time" offset
CENCRC
const short CENCRC = 16;
Description
CEN header field "crc of uncompressed data" offset
CENSIZ
const short CENSIZ = 20;
Description
CEN header field "compressed size" offset
CENLEN
const short CENLEN = 24;
Description
CEN header field "uncompressed size" offset
CENNAM
const short CENNAM = 28;
Description
CEN header field "length of filename" offset
CENEXT
const short CENEXT = 30;
Description
CEN header field "length of extra field" offset
CENCOM
const short CENCOM = 32;
Description
CEN header field "file comment length" offset
CENDSK
const short CENDSK = 34;
Description
CEN header field "disk number start" offset
CENATT
const short CENATT = 36;
Description
CEN header field "internal file attributes" offset
CENATX
const short CENATX = 38;
Description
CEN header field "external file attributes" offset
CENOFF
const short CENOFF = 42;
Description
CEN header field "offset of local header" offset
ENDSUB
const short ENDSUB = 8;
Description
END header field "number of entries on this disk" offset
ENDTOT
const short ENDTOT = 10;
Description
END header field "total number of entries" offset
ENDSIZ
const short ENDSIZ = 12;
Description
END header field "central directory size" offset
ENDOFF
const short ENDOFF = 16;
Description
END header field "central directory offset" offset
ENDCOM
const short ENDCOM = 20;
Description
END header field "size of zip file comment" offset
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