java.security

Class Provider.Service

java.lang.Object

java.security.Provider.Service

Enclosing class:

Provider

public static class Provider.Service
extends Object

Service represents a service in the Java Security infrastructure. Each service describes its type, the algorithm it implements, to which provider it belongs and other properties.

Constructor Summary

Constructors

Constructor and Description
Service(Provider provider, String type, String algorithm, String className, List<String> aliases, Map<String,String> attributes) Constructs a new instance of Service with the given attributes.

Method Summary

Modifier and Type	Method and Description
String	getAlgorithm() Returns the name of the algorithm implemented by this Service.
String	getAttribute(String name) Returns the value of the attribute with the specified name.
String	getClassName() Returns the name of the class implementing this Service.
Provider	getProvider() Returns the Provider this Service belongs to.
String	getType() Returns the type of this Service.
Object	newInstance(Object constructorParameter) Creates and returns a new instance of the implementation described by this Service.
boolean	supportsParameter(Object parameter) Indicates whether this Service supports the specified constructor parameter.
String	toString() Returns a string containing a concise, human-readable description of this Service.

Methods inherited from class java.lang.Object

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

Constructor Detail

Service

public Service(Provider provider,
               String type,
               String algorithm,
               String className,
               List<String> aliases,
               Map<String,String> attributes)

Constructs a new instance of Service with the given attributes.

Parameters:

provider - the provider to which this service belongs.

type - the type of this service (for example KeyPairGenerator).

algorithm - the algorithm this service implements.

className - the name of the class implementing this service.

aliases - List of aliases for the algorithm name, or null if the implemented algorithm has no aliases.

attributes - Map of additional attributes, or null if this Service has no attributed.

Throws:

NullPointerException - if provider, type, algorithm or className is null.

Method Detail

getType

public final String getType()

Returns the type of this Service. For example KeyPairGenerator.

Returns:

the type of this Service.

getAlgorithm

public final String getAlgorithm()

Returns the name of the algorithm implemented by this Service.

Returns:

the name of the algorithm implemented by this Service.

getProvider

public final Provider getProvider()

Returns the Provider this Service belongs to.

Returns:

the Provider this Service belongs to.

getClassName

public final String getClassName()

Returns the name of the class implementing this Service.

Returns:

the name of the class implementing this Service.

getAttribute

public final String getAttribute(String name)

Returns the value of the attribute with the specified name.

Parameters:

name - the name of the attribute.

Returns:

the value of the attribute, or null if no attribute with the given name is set.

Throws:

NullPointerException - if name is null.

newInstance

public Object newInstance(Object constructorParameter)
                   throws NoSuchAlgorithmException

Creates and returns a new instance of the implementation described by this Service.

Parameters:

constructorParameter - the parameter that is used by the constructor, or null if the implementation does not declare a constructor parameter.

Returns:

a new instance of the implementation described by this Service.

Throws:

NoSuchAlgorithmException - if the instance could not be constructed.

InvalidParameterException - if the implementation does not support the specified constructorParameter.

supportsParameter

public boolean supportsParameter(Object parameter)

Indicates whether this Service supports the specified constructor parameter.

Parameters:

parameter - the parameter to test.

Returns:

true if this Service supports the specified constructor parameter, false otherwise.

toString

public String toString()

Returns a string containing a concise, human-readable description of this Service.

Overrides:

toString in class Object

Returns:

a printable representation for this Service.