Java(TM) 2 Platform, Standard Edition, v1.2.2 API Specification: Class ZipEntry - JDK 5 Documentation v1.2.2, Java 2 SDK 英文文档

Overview

Package

Class

Use

Tree

Deprecated

Index

Help

Java^TM 2 Platform
Standard Edition

PREV CLASS NEXT CLASS

FRAMES NO FRAMES

SUMMARY: INNER | FIELD | CONSTR | METHOD

DETAIL: FIELD | CONSTR | METHOD

java.util.zip
Class ZipEntry

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

Direct Known Subclasses:: JarEntry

public class ZipEntry
extends Object
implements java.util.zip.ZipConstants, Cloneable

This class is used to represent a ZIP file entry.

Field Summary

static int DEFLATED
          Compression method for compressed (deflated) entries.

static int STORED
          Compression method for uncompressed entries.

Fields inherited from interface java.util.zip.ZipConstants

CENATT, CENATX, CENCOM, CENCRC, CENDSK, CENEXT, CENFLG, CENHDR, CENHOW, CENLEN, CENNAM, CENOFF, CENSIG, CENSIZ, CENTIM, CENVEM, CENVER, ENDCOM, ENDHDR, ENDOFF, ENDSIG, ENDSIZ, ENDSUB, ENDTOT, EXTCRC, EXTHDR, EXTLEN, EXTSIG, EXTSIZ, LOCCRC, LOCEXT, LOCFLG, LOCHDR, LOCHOW, LOCLEN, LOCNAM, LOCSIG, LOCSIZ, LOCTIM, LOCVER

Constructor Summary

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

ZipEntry(ZipEntry e)
          Creates a new zip entry with fields taken from the specified zip entry.

Method Summary

Object clone()
          Returns a copy of this entry.

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

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

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

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

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

String getName()
          Returns the name of the entry.

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

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

int hashCode()
          Returns the hash code value for this entry.

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

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

void setCompressedSize(long csize)
          Sets the size of the compressed entry data.

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

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

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

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

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

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

Methods inherited from class java.lang.Object

equals, finalize, getClass, notify, notifyAll, wait, wait, wait

Field Detail

STORED

public static final int STORED

Compression method for uncompressed entries.

DEFLATED

public static final int DEFLATED

Compression method for compressed (deflated) entries.

Constructor Detail

ZipEntry

public ZipEntry(String name)

Creates a new zip entry with the specified name.

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

ZipEntry

public ZipEntry(ZipEntry e)

Creates a new zip entry with fields taken from the specified zip entry.

Method Detail

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.

getCompressedSize

public long getCompressedSize()

Returns the size of the compressed 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.

setCompressedSize

public void setCompressedSize(long csize)

Sets the size of the compressed entry data.

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.

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

Tags copied from class: Object

Returns:: a string representation of the object.

hashCode

public int hashCode()

Returns the hash code value for this entry.

Overrides:: hashCode in class Object

Tags copied from class: Object

Returns:: a hash code value for this object.
See Also:: Object.equals(java.lang.Object), Hashtable

clone

public Object clone()

Returns a copy of this entry.

Overrides:: clone in class Object

Tags copied from class: Object

Returns:: a clone of this instance.
Throws:: CloneNotSupportedException - if the object's class does not support the Cloneable interface. Subclasses that override the clone method can also throw this exception to indicate that an instance cannot be cloned.; OutOfMemoryError - if there is not enough memory.
See Also:: Cloneable

Overview

Package

Class

Use

Tree

Deprecated

Index

Help

Java^TM 2 Platform
Standard Edition

PREV CLASS NEXT CLASS

FRAMES NO FRAMES

SUMMARY: INNER | FIELD | CONSTR | METHOD

DETAIL: FIELD | CONSTR | METHOD

Submit a bug or feature
Java, Java 2D, and JDBC are a trademarks or registered trademarks of Sun Microsystems, Inc. in the US and other countries.
Copyright 1993-1999 Sun Microsystems, Inc. 901 San Antonio Road,
Palo Alto, California, 94303, U.S.A. All Rights Reserved.

Field Summary
`static int`	`DEFLATED` Compression method for compressed (deflated) entries.
`static int`	`STORED` Compression method for uncompressed entries.

Constructor Summary
`ZipEntry(String name)` Creates a new zip entry with the specified name.
`ZipEntry(ZipEntry e)` Creates a new zip entry with fields taken from the specified zip entry.

Method Summary
`Object`	`clone()` Returns a copy of this entry.
`String`	`getComment()` Returns the comment string for the entry, or null if none.
`long`	`getCompressedSize()` Returns the size of the compressed entry data, or -1 if not known.
`long`	`getCrc()` Returns the CRC-32 checksum of the uncompressed entry data, or -1 if not known.
`byte[]`	`getExtra()` Returns the extra field data for the entry, or null if none.
`int`	`getMethod()` Returns the compression method of the entry, or -1 if not specified.
`String`	`getName()` Returns the name of the entry.
`long`	`getSize()` Returns the uncompressed size of the entry data, or -1 if not known.
`long`	`getTime()` Returns the modification time of the entry, or -1 if not specified.
`int`	`hashCode()` Returns the hash code value for this entry.
`boolean`	`isDirectory()` Returns true if this is a directory entry.
`void`	`setComment(String comment)` Sets the optional comment string for the entry.
`void`	`setCompressedSize(long csize)` Sets the size of the compressed entry data.
`void`	`setCrc(long crc)` Sets the CRC-32 checksum of the uncompressed entry data.
`void`	`setExtra(byte[] extra)` Sets the optional extra field data for the entry.
`void`	`setMethod(int method)` Sets the compression method for the entry.
`void`	`setSize(long size)` Sets the uncompressed size of the entry data.
`void`	`setTime(long time)` Sets the modification time of the entry.
`String`	`toString()` Returns a string representation of the ZIP entry.

Java(TM) 2 Platform, Standard Edition, v1.2.2 API Specification: Class ZipEntry - JDK 5 Documentation v1.2.2, Java 2 SDK 英文文档

java.util.zip Class ZipEntry

STORED

DEFLATED

ZipEntry

ZipEntry

getName

setTime

getTime

setSize

getSize

getCompressedSize

setCompressedSize

setCrc

getCrc

setMethod

getMethod

setExtra

getExtra

setComment

getComment

isDirectory

toString

hashCode

clone

java.util.zip
Class ZipEntry