Package java.util.jar

Class JarEntry

java.lang.Object

java.util.zip.ZipEntry

java.util.jar.JarEntry

All Implemented Interfaces:

Cloneable

public class JarEntry
extends ZipEntry

Represents a single file in a JAR archive together with the manifest attributes and digital signatures associated with it.

See Also:

JarFile, JarInputStream

Field Summary

Fields

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

Fields inherited from class java.util.zip.ZipEntry

DEFLATED, STORED

Constructor Summary

Constructors

Constructor	Description
JarEntry(String name)	Creates a new JarEntry named name.
JarEntry(JarEntry je)	Create a new JarEntry using the values obtained from the argument.
JarEntry(ZipEntry entry)	Creates a new JarEntry using the values obtained from entry.

Method Summary

Modifier and Type	Method	Description
Attributes	getAttributes()	Returns the Attributes object associated with this entry or null if none exists.
Certificate[]	getCertificates()	Returns an array of Certificate Objects associated with this entry or null if none exists.
CodeSigner[]	getCodeSigners()	Returns the code signers for the digital signatures associated with the JAR file.

Methods inherited from class java.util.zip.ZipEntry

clone, getComment, getCompressedSize, getCrc, getDataOffset, getExtra, getMethod, getName, getSize, getTime, hashCode, isDirectory, setComment, setCompressedSize, setCrc, setDataOffset, setExtra, setMethod, setSize, setTime, toString

Methods inherited from class java.lang.Object

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

Field Detail

LOCSIG

public static final long LOCSIG

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Constant Field Values

EXTSIG

public static final long EXTSIG

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Constant Field Values

CENSIG

public static final long CENSIG

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Constant Field Values

ENDSIG

public static final long ENDSIG

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Constant Field Values

LOCHDR

public static final int LOCHDR

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Constant Field Values

EXTHDR

public static final int EXTHDR

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Constant Field Values

CENHDR

public static final int CENHDR

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Constant Field Values

ENDHDR

public static final int ENDHDR

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Constant Field Values

LOCVER

public static final int LOCVER

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Constant Field Values

LOCFLG

public static final int LOCFLG

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Constant Field Values

LOCHOW

public static final int LOCHOW

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Constant Field Values

LOCTIM

public static final int LOCTIM

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Constant Field Values

LOCCRC

public static final int LOCCRC

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Constant Field Values

LOCSIZ

public static final int LOCSIZ

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Constant Field Values

LOCLEN

public static final int LOCLEN

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Constant Field Values

LOCNAM

public static final int LOCNAM

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Constant Field Values

LOCEXT

public static final int LOCEXT

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Constant Field Values

EXTCRC

public static final int EXTCRC

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Constant Field Values

EXTSIZ

public static final int EXTSIZ

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Constant Field Values

EXTLEN

public static final int EXTLEN

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Constant Field Values

CENVEM

public static final int CENVEM

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Constant Field Values

CENVER

public static final int CENVER

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Constant Field Values

CENFLG

public static final int CENFLG

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Constant Field Values

CENHOW

public static final int CENHOW

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Constant Field Values

CENTIM

public static final int CENTIM

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Constant Field Values

CENCRC

public static final int CENCRC

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Constant Field Values

CENSIZ

public static final int CENSIZ

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Constant Field Values

CENLEN

public static final int CENLEN

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Constant Field Values

CENNAM

public static final int CENNAM

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Constant Field Values

CENEXT

public static final int CENEXT

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Constant Field Values

CENCOM

public static final int CENCOM

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Constant Field Values

CENDSK

public static final int CENDSK

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Constant Field Values

CENATT

public static final int CENATT

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Constant Field Values

CENATX

public static final int CENATX

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Constant Field Values

CENOFF

public static final int CENOFF

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Constant Field Values

ENDSUB

public static final int ENDSUB

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Constant Field Values

ENDTOT

public static final int ENDTOT

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Constant Field Values

ENDSIZ

public static final int ENDSIZ

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Constant Field Values

ENDOFF

public static final int ENDOFF

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Constant Field Values

ENDCOM

public static final int ENDCOM

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Constant Field Values

Constructor Detail

JarEntry

public JarEntry(String name)

Creates a new JarEntry named name.

Parameters:

name - The name of the new JarEntry.

JarEntry

public JarEntry(ZipEntry entry)

Creates a new JarEntry using the values obtained from entry.

Parameters:

entry - The ZipEntry to obtain values from.

JarEntry

public JarEntry(JarEntry je)

Create a new JarEntry using the values obtained from the argument.

Parameters:

je - The JarEntry to obtain values from.

Method Detail

getAttributes

public Attributes getAttributes()
                         throws IOException

Returns the Attributes object associated with this entry or null if none exists.

Returns:

the Attributes for this entry.

Throws:

IOException - If an error occurs obtaining the Attributes.

See Also:

Attributes

getCertificates

public Certificate[] getCertificates()

Returns an array of Certificate Objects associated with this entry or null if none exists. Make sure that the everything is read from the input stream before calling this method, or else the method returns null.

This method returns all the signers' unverified chains concatenated together in one array. To know which certificates were tied to the private keys that made the signatures on this entry, see getCodeSigners() instead.

See Also:

Certificate

getCodeSigners

public CodeSigner[] getCodeSigners()

Returns the code signers for the digital signatures associated with the JAR file. If there is no such code signer, it returns null. Make sure that the everything is read from the input stream before calling this method, or else the method returns null.

Only the digital signature on the entry is cryptographically verified. None of the certificates in the the CertPath returned from CodeSigner.getSignerCertPath() are verified and must be verified by the caller if needed. See CertPathValidator for more information.

Returns:

an array of CodeSigner for this JAR entry.

See Also:

CodeSigner