Class java.util.zip.ZipEntry





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Class java.util.zip.ZipEntry


java.lang.Object
|
+----java.util.zip.ZipEntry



public class ZipEntry
extends Object
implements ZipConstants

This class is used to represent a ZIP file entry.








DEFLATED
Compression method for compressed (deflated) entries.

STORED
Compression method for uncompressed entries.






ZipEntry(String)
Creates a new ZIP file entry with the specified name.






getComment()
Returns the comment string for the entry, or null if none.

getCompressedSize()
Returns the compressed size of the entry data, or -1 if not known.

getCrc()
Returns the CRC-32 checksum of the uncompressed entry data, or -1 if
not known.

getExtra()
Returns the extra field data for the entry, or null if none.

getMethod()
Returns the compression method of the entry, or -1 if not specified.

getName()
Returns the name of the entry.

getSize()
Returns the uncompressed size of the entry data, or -1 if not known.

getTime()
Returns the modification time of the entry, or -1 if not specified.

isDirectory()
Returns true if this is a directory entry.

setComment(String)
Sets the optional comment string for the entry.

setCrc(long)
Sets the CRC-32 checksum of the uncompressed entry data.

setExtra(byte[])
Sets the optional extra field data for the entry.

setMethod(int)
Sets the compression method for the entry.

setSize(long)
Sets the uncompressed size of the entry data.

setTime(long)
Sets the modification time of the entry.

toString()
Returns a string representation of the ZIP entry.






STORED

public static final int STORED


Compression method for uncompressed entries.


DEFLATED

public static final int DEFLATED


Compression method for compressed (deflated) entries.







ZipEntry

public ZipEntry(String name)


Creates a new ZIP file entry with the specified name.


Parameters:
name - the entry name
Throws: NullPointerException
if the entry name is null
Throws: IllegalArgumentException
if the entry name is longer than
0xFFFF bytes







getName

public String getName()


Returns the name of the entry.



setTime

public void setTime(long time)


Sets the modification time of the entry.


Parameters:
time - the entry modification time in number of milliseconds
since the epoch



getTime

public long getTime()


Returns the modification time of the entry, or -1 if not specified.



setSize

public void setSize(long size)


Sets the uncompressed size of the entry data.


Parameters:
size - the uncompressed size in bytes
Throws: IllegalArgumentException
if the specified size is less
than 0 or greater than 0xFFFFFFFF bytes



getSize

public long getSize()


Returns the uncompressed size of the entry data, or -1 if not known.



setCrc

public void setCrc(long crc)


Sets the CRC-32 checksum of the uncompressed entry data.


Parameters:
crc - the CRC-32 value
Throws: IllegalArgumentException
if the specified CRC-32 value is
less than 0 or greater than 0xFFFFFFFF



getCrc

public long getCrc()


Returns the CRC-32 checksum of the uncompressed entry data, or -1 if
not known.



setMethod

public void setMethod(int method)


Sets the compression method for the entry.


Parameters:
method - the compression method, either STORED or DEFLATED
Throws: IllegalArgumentException
if the specified compression
method is invalid



getMethod

public int getMethod()


Returns the compression method of the entry, or -1 if not specified.



setExtra

public void setExtra(byte extra[])


Sets the optional extra field data for the entry.


Parameters:
extra - the extra field data bytes
Throws: IllegalArgumentException
if the length of the specified
extra field data is greater than 0xFFFFF bytes



getExtra

public byte[] getExtra()


Returns the extra field data for the entry, or null if none.



setComment

public void setComment(String comment)


Sets the optional comment string for the entry.


Parameters:
comment - the comment string
Throws: IllegalArgumentException
if the length of the specified
comment string is greater than 0xFFFF bytes



getComment

public String getComment()


Returns the comment string for the entry, or null if none.



getCompressedSize

public long getCompressedSize()


Returns the compressed size of the entry data, or -1 if not known.
In the case of a stored entry, the compressed size will be the same
as the uncompressed size of the entry.



isDirectory

public boolean isDirectory()


Returns true if this is a directory entry. A directory entry is
defined to be one whose name ends with a '/'.



toString

public String toString()


Returns a string representation of the ZIP entry.


Overrides:
toString in class Object




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