Summary: Ctors | Methods | Inherited Methods

Manifest

public class Manifest
extends Object implements Cloneable

java.lang.Object
↳	java.util.jar.Manifest

The Manifest class is used to maintain Manifest entry names and their associated Attributes. There are main Manifest Attributes as well as per-entry Attributes. For information on the Manifest format, please see the Manifest format specification.

See also:

Attributes

Summary

Public constructors
`Manifest()` Constructs a new, empty Manifest.
`Manifest(InputStream is)` Constructs a new Manifest from the specified input stream.
`Manifest(Manifest man)` Constructs a new Manifest that is a copy of the specified Manifest.

Public methods
`void`	`clear()` Clears the main Attributes as well as the entries in this Manifest.
`Object`	`clone()` Returns a shallow copy of this Manifest.
`boolean`	`equals(Object o)` Returns true if the specified Object is also a Manifest and has the same main Attributes and entries.
`Attributes`	`getAttributes(String name)` Returns the Attributes for the specified entry name.
`Map<String, Attributes>`	`getEntries()` Returns a Map of the entries contained in this Manifest.
`Attributes`	`getMainAttributes()` Returns the main Attributes for the Manifest.
`int`	`hashCode()` Returns the hash code for this Manifest.
`void`	`read(InputStream is)` Reads the Manifest from the specified InputStream.
`void`	`write(OutputStream out)` Writes the Manifest to the specified OutputStream.

Inherited methods

From class java.lang.Object

`Object`	`clone()` Creates and returns a copy of this object.
`boolean`	`equals(Object obj)` Indicates whether some other object is "equal to" this one.
`void`	`finalize()` Called by the garbage collector on an object when garbage collection determines that there are no more references to the object.
`final Class<?>`	`getClass()` Returns the runtime class of this `Object`.
`int`	`hashCode()` Returns a hash code value for the object.
`final void`	`notify()` Wakes up a single thread that is waiting on this object's monitor.
`final void`	`notifyAll()` Wakes up all threads that are waiting on this object's monitor.
`String`	`toString()` Returns a string representation of the object.
`final void`	`wait(long timeoutMillis, int nanos)` Causes the current thread to wait until it is awakened, typically by being notified or interrupted, or until a certain amount of real time has elapsed.
`final void`	`wait(long timeoutMillis)` Causes the current thread to wait until it is awakened, typically by being notified or interrupted, or until a certain amount of real time has elapsed.
`final void`	`wait()` Causes the current thread to wait until it is awakened, typically by being notified or interrupted.

Public constructors

Manifest

Added in API level 1

 public Manifest ()

Constructs a new, empty Manifest.

Manifest

Added in API level 1

 public Manifest (InputStream is)

Constructs a new Manifest from the specified input stream.

Parameters
`is`	`InputStream`: the input stream containing manifest data

Throws
`IOException`	if an I/O error has occurred

Manifest

Added in API level 1

 public Manifest (Manifest man)

Constructs a new Manifest that is a copy of the specified Manifest.

Parameters
`man`	`Manifest`: the Manifest to copy

Public methods

clear

Added in API level 1

 public void clear ()

Clears the main Attributes as well as the entries in this Manifest.

clone

Added in API level 1

 public Object clone ()

Returns a shallow copy of this Manifest. The shallow copy is implemented as follows:

 public Object clone() { return new Manifest(this); }

Returns
`Object`	a shallow copy of this Manifest

equals

Added in API level 1

 public boolean equals (Object o)

Returns true if the specified Object is also a Manifest and has the same main Attributes and entries.

Parameters
`o`	`Object`: the object to be compared

Returns
`boolean`	true if the specified Object is also a Manifest and has the same main Attributes and entries

getAttributes

Added in API level 1

 public Attributes getAttributes (String name)

Returns the Attributes for the specified entry name. This method is defined as:

 return (Attributes)getEntries().get(name)

Though null is a valid name, when getAttributes(null) is invoked on a Manifest obtained from a jar file, null will be returned. While jar files themselves do not allow null-named attributes, it is possible to invoke getEntries() on a Manifest, and on that result, invoke put with a null key and an arbitrary value. Subsequent invocations of getAttributes(null) will return the just-put value.

Note that this method does not return the manifest's main attributes; see getMainAttributes().

Parameters
`name`	`String`: entry name

Returns
`Attributes`	the Attributes for the specified entry name

getEntries

Added in API level 1

 public Map<String, Attributes> getEntries ()

Returns a Map of the entries contained in this Manifest. Each entry is represented by a String name (key) and associated Attributes (value). The Map permits the null key, but no entry with a null key is created by read(InputStream), nor is such an entry written by using write(OutputStream).

Returns
`Map<String, Attributes>`	a Map of the entries contained in this Manifest

getMainAttributes

Added in API level 1

 public Attributes getMainAttributes ()

Returns the main Attributes for the Manifest.

Returns
`Attributes`	the main Attributes for the Manifest

hashCode

Added in API level 1

 public int hashCode ()

Returns the hash code for this Manifest.

Returns
`int`	a hash code value for this object.

read

Added in API level 1

 public void read (InputStream is)

Reads the Manifest from the specified InputStream. The entry names and attributes read will be merged in with the current manifest entries.

Parameters
`is`	`InputStream`: the input stream

Throws
`IOException`	if an I/O error has occurred

write

Added in API level 1

 public void write (OutputStream out)

Writes the Manifest to the specified OutputStream. Attributes.Name.MANIFEST_VERSION must be set in MainAttributes prior to invoking this method.

Parameters
`out`	`OutputStream`: the output stream

Throws
`IOException`	if an I/O error has occurred

See also:

getMainAttributes()