Class JarOutputStream

java.lang.Object
- java.io.OutputStream
- - java.io.FilterOutputStream
  - - java.util.zip.DeflaterOutputStream
    - - java.util.zip.ZipOutputStream
      - java.util.jar.JarOutputStream

All Implemented Interfaces:: Closeable, Flushable, AutoCloseable

public class JarOutputStream
extends ZipOutputStream

The JarOutputStream class is used to write the contents of a JAR file to any output stream. It extends the class java.util.zip.ZipOutputStream with support for writing an optional Manifest entry. The Manifest can be used to specify meta-information about the JAR file and its entries.

Since:: 1.2
See Also:: Manifest, ZipOutputStream

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 declared in class java.util.zip.ZipOutputStream

DEFLATED, STORED

Fields declared in class java.util.zip.DeflaterOutputStream

buf, def

Fields declared in class java.io.FilterOutputStream

out

Constructor Summary

Constructors
Constructor	Description
`JarOutputStream(OutputStream out)`	Creates a new `JarOutputStream` with no manifest.
`JarOutputStream(OutputStream out, Manifest man)`	Creates a new `JarOutputStream` with the specified `Manifest`.

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`void`	`putNextEntry(ZipEntry ze)`	Begins writing a new JAR file entry and positions the stream to the start of the entry data.

Methods declared in class java.util.zip.ZipOutputStream

close, closeEntry, finish, setComment, setLevel, setMethod, write

Methods declared in class java.util.zip.DeflaterOutputStream

deflate, flush, write

Methods declared in class java.io.FilterOutputStream

write

Methods declared in class java.io.OutputStream

nullOutputStream

Methods declared in class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

LOCSIG

public static final long LOCSIG

See Also:: Constant Field Values

EXTSIG

public static final long EXTSIG

See Also:: Constant Field Values

CENSIG

public static final long CENSIG

See Also:: Constant Field Values

ENDSIG

public static final long ENDSIG

See Also:: Constant Field Values

LOCHDR

public static final int LOCHDR

See Also:: Constant Field Values

EXTHDR

public static final int EXTHDR

See Also:: Constant Field Values

CENHDR

public static final int CENHDR

See Also:: Constant Field Values

ENDHDR

public static final int ENDHDR

See Also:: Constant Field Values

LOCVER

public static final int LOCVER

See Also:: Constant Field Values

LOCFLG

public static final int LOCFLG

See Also:: Constant Field Values

LOCHOW

public static final int LOCHOW

See Also:: Constant Field Values

LOCTIM

public static final int LOCTIM

See Also:: Constant Field Values

LOCCRC

public static final int LOCCRC

See Also:: Constant Field Values

LOCSIZ

public static final int LOCSIZ

See Also:: Constant Field Values

LOCLEN

public static final int LOCLEN

See Also:: Constant Field Values

LOCNAM

public static final int LOCNAM

See Also:: Constant Field Values

LOCEXT

public static final int LOCEXT

See Also:: Constant Field Values

EXTCRC

public static final int EXTCRC

See Also:: Constant Field Values

EXTSIZ

public static final int EXTSIZ

See Also:: Constant Field Values

EXTLEN

public static final int EXTLEN

See Also:: Constant Field Values

CENVEM

public static final int CENVEM

See Also:: Constant Field Values

CENVER

public static final int CENVER

See Also:: Constant Field Values

CENFLG

public static final int CENFLG

See Also:: Constant Field Values

CENHOW

public static final int CENHOW

See Also:: Constant Field Values

CENTIM

public static final int CENTIM

See Also:: Constant Field Values

CENCRC

public static final int CENCRC

See Also:: Constant Field Values

CENSIZ

public static final int CENSIZ

See Also:: Constant Field Values

CENLEN

public static final int CENLEN

See Also:: Constant Field Values

CENNAM

public static final int CENNAM

See Also:: Constant Field Values

CENEXT

public static final int CENEXT

See Also:: Constant Field Values

CENCOM

public static final int CENCOM

See Also:: Constant Field Values

CENDSK

public static final int CENDSK

See Also:: Constant Field Values

CENATT

public static final int CENATT

See Also:: Constant Field Values

CENATX

public static final int CENATX

See Also:: Constant Field Values

CENOFF

public static final int CENOFF

See Also:: Constant Field Values

ENDSUB

public static final int ENDSUB

See Also:: Constant Field Values

ENDTOT

public static final int ENDTOT

See Also:: Constant Field Values

ENDSIZ

public static final int ENDSIZ

See Also:: Constant Field Values

ENDOFF

public static final int ENDOFF

See Also:: Constant Field Values

ENDCOM

public static final int ENDCOM

See Also:: Constant Field Values

Constructor Detail

JarOutputStream

public JarOutputStream(OutputStream out,
                       Manifest man)
                throws IOException

Creates a new JarOutputStream with the specified Manifest. The manifest is written as the first entry to the output stream.

Parameters:: out - the actual output stream; man - the optional Manifest
Throws:: IOException - if an I/O error has occurred

JarOutputStream

public JarOutputStream(OutputStream out)
                throws IOException

Creates a new JarOutputStream with no manifest.

Parameters:: out - the actual output stream
Throws:: IOException - if an I/O error has occurred

Method Detail

putNextEntry

public void putNextEntry(ZipEntry ze)
                  throws IOException

Begins writing a new JAR file entry and positions the stream to the start of the entry data. This method will also close any previous entry. The default compression method will be used if no compression method was specified for the entry. The current time will be used if the entry has no set modification time.

Overrides:: putNextEntry in class ZipOutputStream
Parameters:: ze - the ZIP/JAR entry to be written
Throws:: ZipException - if a ZIP error has occurred; IOException - if an I/O error has occurred