public abstract class Provider extends Properties
Provider
is the abstract superclass for all security providers in the
Java security infrastructure.Modifier and Type | Class and Description |
---|---|
static class |
Provider.Service
Service represents a service in the Java Security infrastructure. |
defaults
Modifier | Constructor and Description |
---|---|
protected |
Provider(String name,
double version,
String info)
Constructs a new instance of
Provider with its name, version and
description. |
Modifier and Type | Method and Description |
---|---|
void |
clear()
Clears all properties used to look up services implemented by this
Provider . |
Set<Map.Entry<Object,Object>> |
entrySet()
Returns a set of the mappings contained in this
Hashtable . |
String |
getInfo()
Returns a description of the services being provided.
|
String |
getName()
Returns the name of this provider.
|
Provider.Service |
getService(String type,
String algorithm)
Returns the service with the specified
type implementing the
specified algorithm , or null if no such implementation
exists. |
Set<Provider.Service> |
getServices()
Returns an unmodifiable
Set of all services registered by this
provider. |
double |
getVersion()
Returns the version number for the services being provided.
|
Set<Object> |
keySet()
Returns a set of the keys contained in this
Hashtable . |
void |
load(InputStream inStream)
Loads properties from the specified
InputStream , assumed to be ISO-8859-1. |
Object |
put(Object key,
Object value)
Maps the specified
key property name to the specified value . |
void |
putAll(Map<?,?> t)
Copies all from the provided map to this
Provider . |
protected void |
putService(Provider.Service s)
Adds a
Service to this Provider . |
Object |
remove(Object key)
Removes the specified
key and its associated value from this
Provider . |
protected void |
removeService(Provider.Service s)
Removes a previously registered
Service from this Provider . |
String |
toString()
Returns a string containing a concise, human-readable description of
this
Provider including its name and its version. |
Collection<Object> |
values()
Returns a collection of the values contained in this
Hashtable . |
getProperty, getProperty, list, list, load, loadFromXML, propertyNames, save, setProperty, store, store, storeToXML, storeToXML, stringPropertyNames
public String getName()
public double getVersion()
public String getInfo()
public String toString()
Provider
including its name and its version.public void clear()
Provider
.clear
in interface Map<Object,Object>
clear
in class Hashtable<Object,Object>
Hashtable.isEmpty()
,
Hashtable.size
public void load(InputStream inStream) throws IOException
Properties
InputStream
, assumed to be ISO-8859-1.
See "Character Encoding".load
in class Properties
inStream
- the InputStream
IOException
public void putAll(Map<?,?> t)
Provider
.public Set<Map.Entry<Object,Object>> entrySet()
Hashtable
Hashtable
. Each
element in the set is a Map.Entry
. The set is backed by this
Hashtable
so changes to one are reflected by the other. The set
does not support adding.public Set<Object> keySet()
Hashtable
Hashtable
. The set
is backed by this Hashtable
so changes to one are reflected by
the other. The set does not support adding.public Collection<Object> values()
Hashtable
Hashtable
.
The collection is backed by this Hashtable
so changes to one are
reflected by the other. The collection does not support adding.public Object put(Object key, Object value)
key
property name to the specified value
.put
in interface Map<Object,Object>
put
in class Hashtable<Object,Object>
key
- the name of the property.value
- the value of the property.key
,or null
if it did not have one.Hashtable.elements()
,
Hashtable.get(java.lang.Object)
,
Hashtable.keys()
,
Object.equals(java.lang.Object)
public Object remove(Object key)
key
and its associated value from this
Provider
.remove
in interface Map<Object,Object>
remove
in class Hashtable<Object,Object>
key
- the name of the propertykey
,or
null
if no mapping was presentHashtable.get(java.lang.Object)
,
Hashtable.put(K, V)
public Provider.Service getService(String type, String algorithm)
type
implementing the
specified algorithm
, or null
if no such implementation
exists.
If two services match the requested type and algorithm, the one added
with the putService(Service)
is returned (as opposed to the one
added via put(Object, Object)
.
type
- the type of the service (for example KeyPairGenerator
)algorithm
- the algorithm name (case insensitive)null
if no such implementation
existspublic Set<Provider.Service> getServices()
Set
of all services registered by this
provider.Set
of all services registered by this
providerprotected void putService(Provider.Service s)
Service
to this Provider
. If a service with the
same name was registered via this method, it is replace.s
- the Service
to registerprotected void removeService(Provider.Service s)
Service
from this Provider
.s
- the Service
to removeNullPointerException
- if s
is null