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Java Platform 1.2
Beta 4

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Class java.security.Provider

java.lang.Object
  |
  +--java.util.Dictionary
        |
        +--java.util.Hashtable
              |
              +--java.util.Properties
                    |
                    +--java.security.Provider

public abstract class Provider

extends Properties

This class represents a "provider" for the Java Security API, where a provider implements some or all parts of Java Security, including:

• Algorithms (such as DSA, RSA, MD5 or SHA-1).
• Key generation, conversion, and management facilities (such as for algorithm-specific keys).

Each provider has a name and a version number, and is configured in each runtime it is installed in.

There is a default provider that comes standard with the JDK. It is called the SUN Provider. See The Provider Class in the "Java Cryptography Architecture API Specification & Reference" for information about how providers work and how to install them.

See Also:

Serialized Form

Fields inherited from class java.util.Properties

defaults

Constructor Summary

Provider(String name, double version, String info)
Constructs a provider with the specified name, version number, and information.

Method Summary

void	clear() Clears this provider so that it no longer contains the properties used to look up facilities implemented by the provider.
String	getInfo() Returns a human-readable description of the provider and its services.
String	getName() Returns the name of this provider.
double	getVersion() Returns the version number for this provider.
Object	put(Object key, Object value) Sets the key property to have the specified value.
Object	remove(Object key) Removes the key property (and its corresponding value).
String	toString() Returns a string with the name and the version number of this provider.

Methods inherited from class java.util.Properties

getProperty , getProperty , list , list , load , propertyNames , save , setProperty , store

Methods inherited from class java.util.Hashtable

clone , contains , containsKey , containsValue , elements , entrySet , equals , get , hashCode , isEmpty , keys , keySet , putAll , rehash , size , values

Methods inherited from class java.lang.Object

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

Constructor Detail

Provider

protected Provider(String name,
                   double version,
                   String info)

Constructs a provider with the specified name, version number, and information.

Parameters:

name - the provider name.

version - the provider version number.

info - a description of the provider and its services.

Method Detail

getName

public String getName()

Returns the name of this provider.

Returns:

the name of this provider.

getVersion

public double getVersion()

Returns the version number for this provider.

Returns:

the version number for this provider.

getInfo

public String getInfo()

Returns a human-readable description of the provider and its services. This may return an HTML page, with relevant links.

Returns:

a description of the provider and its services.

toString

public String toString()

Returns a string with the name and the version number of this provider.

Returns:

the string with the name and the version number for this provider.

Overrides:

toString in class Hashtable

clear

public void clear()

Clears this provider so that it no longer contains the properties used to look up facilities implemented by the provider.

Overrides:

clear in class Hashtable

Since:

JDK1.2

put

public Object put(Object key,
                  Object value)

Sets the key property to have the specified value.

Parameters:

key - the property key.

value - the property value.

Returns:

the previous value of the specified property (key), or null if it did not have one.

Overrides:

put in class Properties

Since:

JDK1.2

remove

public Object remove(Object key)

Removes the key property (and its corresponding value).

Parameters:

key - the key for the property to be removed.

Returns:

the value to which the key had been mapped, or null if the key did not have a mapping.

Overrides:

remove in class Hashtable

Since:

JDK1.2