gnu.javax.crypto.keyring

Class Entry

Known Direct Subclasses:
EnvelopeEntry, PrimitiveEntry

public abstract class Entry
extends Object

An immutable class representing a single entry in a keyring.

Field Summary

protected byte[]
payload
This entry's payload.
protected Properties
properties
This entry's property set.
protected int
type
This entry's type identifier.

Constructor Summary

Entry(int type)
Constructor for use by subclasses.
Entry(int type, Properties properties)
Creates a new Entry.

Method Summary

protected void
defaultDecode(DataInputStream in)
Generic decoding method, which simply decodes the properties field and reads the payload field.
void
encode(DataOutputStream out)
This method is called when this entry needs to be written to an output stream.
protected abstract void
encodePayload()
This method is called of subclasses when the payload data needs to be created.
byte[]
getPayload()
Returns this entry's payload data, or null if
Properties
getProperties()
Returns this entry's properties object.
String
toString()
Convert this Object to a human-readable String.

Methods inherited from class java.lang.Object

clone, equals, extends Object> getClass, finalize, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Details

payload

protected byte[] payload
This entry's payload.

properties

protected Properties properties
This entry's property set.

type

protected int type
This entry's type identifier.

Constructor Details

Entry

protected Entry(int type)
Constructor for use by subclasses.

Entry

protected Entry(int type,
                Properties properties)
Creates a new Entry.
Parameters:
type - This entry's type.
properties - This entry's properties.
Throws:
IllegalArgumentException - If the properties argument is null, or if the type is out of range.

Method Details

defaultDecode

protected void defaultDecode(DataInputStream in)
            throws IOException
Generic decoding method, which simply decodes the properties field and reads the payload field.
Parameters:
in - The input data stream.
Throws:
IOException - If an I/O error occurs.

encode

public void encode(DataOutputStream out)
            throws IOException
This method is called when this entry needs to be written to an output stream.
Parameters:
out - The stream to write to.
Throws:
IOException - If an I/O exception occurs.

encodePayload

protected abstract void encodePayload()
            throws IOException
This method is called of subclasses when the payload data needs to be created.
Throws:
IOException - If an encoding error occurs.

getPayload

public byte[] getPayload()
Returns this entry's payload data, or null if

getProperties

public Properties getProperties()
Returns this entry's properties object. The properties are cloned before being returned.
Returns:
The properties.

toString

public String toString()
Convert this Object to a human-readable String. There are no limits placed on how long this String should be or what it should contain. We suggest you make it as intuitive as possible to be able to place it into System.out.println() and such.

It is typical, but not required, to ensure that this method never completes abruptly with a RuntimeException.

This method will be called when performing string concatenation with this object. If the result is null, string concatenation will instead use "null".

The default implementation returns getClass().getName() + "@" + Integer.toHexString(hashCode()).

Overrides:
toString in interface Object
Returns:
the String representing this Object, which may be null

Entry.java -- Copyright (C) 2003, 2006, 2010 Free Software Foundation, Inc. This file is a part of GNU Classpath. GNU Classpath is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version. GNU Classpath is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with GNU Classpath; if not, write to the Free Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA Linking this library statically or dynamically with other modules is making a combined work based on this library. Thus, the terms and conditions of the GNU General Public License cover the whole combination. As a special exception, the copyright holders of this library give you permission to link this library with independent modules to produce an executable, regardless of the license terms of these independent modules, and to copy and distribute the resulting executable under terms of your choice, provided that you also meet, for each linked independent module, the terms and conditions of the license of that module. An independent module is a module which is not derived from or based on this library. If you modify this library, you may extend this exception to your version of the library, but you are not obligated to do so. If you do not wish to do so, delete this exception statement from your version.