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Provider

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Added in API level 1

public abstract class

Provider

extends Properties

java.lang.Object
↳	java.util.Dictionary<java.lang.Object, java.lang.Object>
	↳	java.util.Hashtable<java.lang.Object, java.lang.Object>
		↳	java.util.Properties
			↳	java.security.Provider

Known Direct Subclasses

AuthProvider

Class Overview

Provider is the abstract superclass for all security providers in the Java security infrastructure.

Summary

Nested Classes
class	Provider.Service	`Service` represents a service in the Java Security infrastructure.

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Inherited Fields

From class java.util.Properties

Protected Constructors
	Provider(String name, double version, String info) Constructs a new instance of `Provider` with its name, version and description.

Public Methods
void	clear() Clears all properties used to look up services implemented by this `Provider`.
Set<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`.
Object	remove(Object key) Removes the specified `key` and its associated value 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`.

Protected Methods
void	putService(Provider.Service s) Adds a `Service` to this `Provider`.
void	removeService(Provider.Service s) Removes a previously registered `Service` from this `Provider`.

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Inherited Methods

From class java.util.Properties

String	getProperty(String name, String defaultValue) Searches for the property with the specified name.
String	getProperty(String name) Searches for the property with the specified name.
void	list(PrintStream out) Lists the mappings in this `Properties` to `out` in a human-readable form.
void	list(PrintWriter out) Lists the mappings in this `Properties` to `out` in a human-readable form.
void	load(InputStream in) Loads properties from the specified `InputStream`, assumed to be ISO-8859-1.
void	load(Reader in) Loads properties from the specified `Reader`.
void	loadFromXML(InputStream in) Loads the properties from an `InputStream` containing the properties in XML form.
Enumeration<?>	propertyNames() Returns all of the property names (keys) in this `Properties` object.
void	save(OutputStream out, String comment) This method was deprecated in API level 1. This method ignores any `IOException` thrown while writing — use `store(OutputStream, String)` instead for better exception handling.
Object	setProperty(String name, String value) Maps the specified key to the specified value.
void	store(OutputStream out, String comment) Stores properties to the specified `OutputStream`, using ISO-8859-1.
void	store(Writer writer, String comment) Stores the mappings in this `Properties` object to `out`, putting the specified comment at the beginning.
void	storeToXML(OutputStream os, String comment, String encoding) Writes all properties stored in this instance into the `OutputStream` in XML representation.
void	storeToXML(OutputStream os, String comment) Writes all properties stored in this instance into the `OutputStream` in XML representation.
Set<String>	stringPropertyNames() Returns those property names (keys) in this `Properties` object for which both key and value are strings.

From class java.util.Hashtable

void	clear() Removes all key/value pairs from this `Hashtable`, leaving the size zero and the capacity unchanged.
Object	clone() Returns a new `Hashtable` with the same key/value pairs, capacity and load factor.
boolean	contains(Object value) Returns true if this `Hashtable` contains the specified object as the value of at least one of the key/value pairs.
boolean	containsKey(Object key) Returns true if this `Hashtable` contains the specified object as a key of one of the key/value pairs.
boolean	containsValue(Object value) Searches this `Hashtable` for the specified value.
Enumeration<Object>	elements() Returns an enumeration on the values of this `Hashtable`.
Set<Entry<Object, Object>>	entrySet() Returns a set of the mappings contained in this `Hashtable`.
boolean	equals(Object object) Compares this `Hashtable` with the specified object and indicates if they are equal.
Object	get(Object key) Returns the value associated with the specified key in this `Hashtable`.
int	hashCode() Returns an integer hash code for this object.
boolean	isEmpty() Returns true if this `Hashtable` has no key/value pairs.
Set<Object>	keySet() Returns a set of the keys contained in this `Hashtable`.
Enumeration<Object>	keys() Returns an enumeration on the keys of this `Hashtable` instance.
Object	put(Object key, Object value) Associate the specified value with the specified key in this `Hashtable`.
void	putAll(Map<? extends K, ? extends V> map) Copies every mapping to this `Hashtable` from the specified map.
void	rehash() Increases the capacity of this `Hashtable`.
Object	remove(Object key) Removes the key/value pair with the specified key from this `Hashtable`.
int	size() Returns the number of key/value pairs in this `Hashtable`.
String	toString() Returns the string representation of this `Hashtable`.
Collection<Object>	values() Returns a collection of the values contained in this `Hashtable`.

From class java.util.Dictionary

From class java.lang.Object

Object	clone() Creates and returns a copy of this `Object`.
boolean	equals(Object o) Compares this instance with the specified object and indicates if they are equal.
void	finalize() Invoked when the garbage collector has detected that this instance is no longer reachable.
final Class<?>	getClass() Returns the unique instance of `Class` that represents this object's class.
int	hashCode() Returns an integer hash code for this object.
final void	notify() Causes a thread which is waiting on this object's monitor (by means of calling one of the `wait()` methods) to be woken up.
final void	notifyAll() Causes all threads which are waiting on this object's monitor (by means of calling one of the `wait()` methods) to be woken up.
String	toString() Returns a string containing a concise, human-readable description of this object.
final void	wait() Causes the calling thread to wait until another thread calls the `notify()` or `notifyAll()` method of this object.
final void	wait(long millis, int nanos) Causes the calling thread to wait until another thread calls the `notify()` or `notifyAll()` method of this object or until the specified timeout expires.
final void	wait(long millis) Causes the calling thread to wait until another thread calls the `notify()` or `notifyAll()` method of this object or until the specified timeout expires.

From interface java.util.Map

abstract void	clear() Removes all elements from this `Map`, leaving it empty.
abstract boolean	containsKey(Object key) Returns whether this `Map` contains the specified key.
abstract boolean	containsValue(Object value) Returns whether this `Map` contains the specified value.
abstract Set<Entry<Object, Object>>	entrySet() Returns a `Set` containing all of the mappings in this `Map`.
abstract boolean	equals(Object object) Compares the argument to the receiver, and returns `true` if the specified object is a `Map` and both `Map`s contain the same mappings.
abstract Object	get(Object key) Returns the value of the mapping with the specified key.
abstract int	hashCode() Returns an integer hash code for the receiver.
abstract boolean	isEmpty() Returns whether this map is empty.
abstract Set<Object>	keySet() Returns a set of the keys contained in this `Map`.
abstract Object	put(Object key, Object value) Maps the specified key to the specified value.
abstract void	putAll(Map<? extends K, ? extends V> map) Copies every mapping in the specified `Map` to this `Map`.
abstract Object	remove(Object key) Removes a mapping with the specified key from this `Map`.
abstract int	size() Returns the number of mappings in this `Map`.
abstract Collection<Object>	values() Returns a `Collection` of the values contained in this `Map`.

Protected Constructors

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

Added in API level 1

Constructs a new instance of Provider with its name, version and description.

Parameters
`name`	`String`: the name of the provider.
`version`	`double`: the version of the provider.
`info`	`String`: a description of the provider.

Public Methods

public void clear ()

Added in API level 1

Clears all properties used to look up services implemented by this Provider.

public Set<Entry<Object, Object>> entrySet ()

Added in API level 1

Returns a set of the mappings contained in this 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.

Returns
`Set<Entry<Object, Object>>`	a set of the mappings.

public String getInfo ()

Added in API level 1

Returns a description of the services being provided.

Returns
`String`	a description of the services being provided.

public String getName ()

Added in API level 1

Returns the name of this provider.

Returns
`String`	the name of this provider.

public Provider.Service getService (String type, String algorithm)

Added in API level 1

Returns the service with the specified 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).

Parameters
`type`	`String`: the type of the service (for example `KeyPairGenerator`)
`algorithm`	`String`: the algorithm name (case insensitive)

Returns
`Provider.Service`	the requested service, or `null` if no such implementation exists

public Set<Provider.Service> getServices ()

Added in API level 1

Returns an unmodifiable Set of all services registered by this provider.

Returns
`Set<Provider.Service>`	an unmodifiable `Set` of all services registered by this provider

public double getVersion ()

Added in API level 1

Returns the version number for the services being provided.

Returns
`double`	the version number for the services being provided.

public Set<Object> keySet ()

Added in API level 1

Returns a set of the keys contained in this Hashtable. The set is backed by this Hashtable so changes to one are reflected by the other. The set does not support adding.

Returns
`Set<Object>`	a set of the keys.

public void load (InputStream inStream)

Added in API level 1

Loads properties from the specified InputStream, assumed to be ISO-8859-1. See "Character Encoding".

Parameters
`inStream`	`InputStream`: the `InputStream`

Throws
`IOException`

public Object put (Object key, Object value)

Added in API level 1

Maps the specified key property name to the specified value.

Parameters
`key`	`Object`: the name of the property.
`value`	`Object`: the value of the property.

Returns
`Object`	the value that was previously mapped to the specified `key` ,or `null` if it did not have one.

public void putAll (Map<?, ?> t)

Added in API level 1

Copies all from the provided map to this Provider.

Parameters
`t`	`Map`: the mappings to copy to this provider.

public Object remove (Object key)

Added in API level 1

Removes the specified key and its associated value from this Provider.

Parameters
`key`	`Object`: the name of the property

Returns
`Object`	the value that was mapped to the specified `key` ,or `null` if no mapping was present

public String toString ()

Added in API level 1

Returns a string containing a concise, human-readable description of this Provider including its name and its version.

Returns
`String`	a printable representation for this `Provider`.

public Collection<Object> values ()

Added in API level 1

Returns a collection of the values contained in this Hashtable. The collection is backed by this Hashtable so changes to one are reflected by the other. The collection does not support adding.

Returns
`Collection<Object>`	a collection of the values.

Protected Methods

protected void putService (Provider.Service s)

Added in API level 1

Adds a Service to this Provider. If a service with the same name was registered via this method, it is replace.

Parameters
`s`	`Provider.Service`: the `Service` to register

protected void removeService (Provider.Service s)

Added in API level 1

Removes a previously registered Service from this Provider.

Parameters
`s`	`Provider.Service`: the `Service` to remove

Throws
`NullPointerException`	if `s` is `null`

Mar	APR	May
	17
2015	2016	2017

Results

Interfaces

Classes

Enums

Exceptions

Provider

Class Overview

Summary

Protected Constructors

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

Public Methods

public void clear ()

public Set<Entry<Object, Object>> entrySet ()

public String getInfo ()

public String getName ()

public Provider.Service getService (String type, String algorithm)

public Set<Provider.Service> getServices ()

public double getVersion ()

public Set<Object> keySet ()

public void load (InputStream inStream)

public Object put (Object key, Object value)

public void putAll (Map<?, ?> t)

public Object remove (Object key)

public String toString ()

public Collection<Object> values ()

Protected Methods

protected void putService (Provider.Service s)

protected void removeService (Provider.Service s)