java.lang.Object | |
↳ | javax.smartcardio.TerminalFactorySpi |
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The TerminalFactorySpi class defines the service provider interface.
Applications do not access this class directly, instead see
TerminalFactory
.
Service providers that want to write a new implementation should define
a concrete subclass of TerminalFactorySpi with a constructor that takes
an Object
as parameter. That class needs to be registered
in a Provider
. The engine
type
is
TerminalFactory
.
Service providers also need to implement subclasses of the abstract classes
CardTerminals
, CardTerminal
, Card
,
and CardChannel
.
For example:
file MyProvider.java: package com.somedomain.card; import java.security.Provider; public class MyProvider extends Provider { public MyProvider() { super("MyProvider", 1.0d, "Smart Card Example"); put("TerminalFactory.MyType", "com.somedomain.card.MySpi"); } } file MySpi.java package com.somedomain.card; import javax.smartcardio.*; public class MySpi extends TerminalFactoySpi { public MySpi(Object parameter) { // initialize as appropriate } protected CardTerminals engineTerminals() { // add implementation code here } }
Protected Constructors | |||||||||||
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Constructs a new TerminalFactorySpi object.
|
Protected Methods | |||||||||||
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Returns the CardTerminals created by this factory.
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Inherited Methods | |||||||||||
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Constructs a new TerminalFactorySpi object.
This class is part of the service provider interface and not accessed
directly by applications. Applications
should use TerminalFactory objects, which can be obtained by calling
one of the
TerminalFactory.getInstance()
methods.
Concrete subclasses should define a constructor that takes an
Object
as parameter. It will be invoked when an
application calls one of the TerminalFactory.getInstance()
methods and receives the params
object specified by the application.
Returns the CardTerminals created by this factory.