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Préférences
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JavaTM 2 Platform Std. Ed. v1.4.2
java.security
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Field Summary |
Fields inherited from class java.util.Properties |
defaults |
Constructor Summary | |
protected |
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. |
Set |
entrySet()
Returns an unmodifiable Set view of the property entries contained in this 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. |
Set |
keySet()
Returns an unmodifiable Set view of the property keys contained in this provider. |
void |
load(InputStream inStream)
Reads a property list (key and element pairs) from the input stream. |
Object |
put(Object key,
Object value)
Sets the key property to have the specified
value . |
void |
putAll(Map t)
Copies all of the mappings from the specified Map to this provider. |
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. |
Collection |
values()
Returns an unmodifiable Collection view of the property values contained in this provider. |
Methods inherited from class java.util.Properties |
getProperty, getProperty, list, list, propertyNames, save, setProperty, store |
Methods inherited from class java.util.Hashtable |
clone, contains, containsKey, containsValue, elements, equals, get, hashCode, isEmpty, keys, rehash, size |
Methods inherited from class java.lang.Object |
finalize, getClass, notify, notifyAll, wait, wait, wait |
Constructor Detail |
protected Provider(String name, double version, String info)
name
- the provider name.version
- the provider version number.info
- a description of the provider and its services.Method Detail |
public String getName()
public double getVersion()
public String getInfo()
public String toString()
public void clear()
First, if there is a security manager, its checkSecurityAccess
method is called with the string "clearProviderProperties."+name
(where name
is the provider name) to see if it's ok to clear this provider.
If the default implementation of checkSecurityAccess
is used (that is, that method is not overriden), then this results in
a call to the security manager's checkPermission
method with a
SecurityPermission("clearProviderProperties."+name)
permission.
SecurityException
- if a security manager exists and its SecurityManager.checkSecurityAccess(java.lang.String)
method denies
access to clear this providerpublic void load(InputStream inStream) throws IOException
load
in class Properties
inStream
- the input stream.
IOException
- if an error occurred when reading from the
input stream.Properties.load(java.io.InputStream)
public void putAll(Map t)
t
- Mappings to be stored in this map.public Set entrySet()
Map.Entry
public Set keySet()
public Collection values()
public Object put(Object key, Object value)
key
property to have the specified
value
.
First, if there is a security manager, its checkSecurityAccess
method is called with the string "putProviderProperty."+name
,
where name
is the provider name,
to see if it's ok to set this provider's property values.
If the default implementation of checkSecurityAccess
is used (that is, that method is not overriden), then this results in
a call to the security manager's checkPermission
method with a
SecurityPermission("putProviderProperty."+name)
permission.
key
- the property key.value
- the property value.
key
), or null if it did not have one.
SecurityException
- if a security manager exists and its SecurityManager.checkSecurityAccess(java.lang.String)
method denies
access to set property values.Object.equals(Object)
,
Hashtable.get(Object)
public Object remove(Object key)
key
property (and its corresponding
value
).
First, if there is a security manager, its checkSecurityAccess
method is called with the string ""removeProviderProperty."+name
,
where name
is the provider name,
to see if it's ok to remove this provider's properties.
If the default implementation of checkSecurityAccess
is used (that is, that method is not overriden), then this results in
a call to the security manager's checkPermission
method with a
SecurityPermission("removeProviderProperty."+name)
permission.
key
- the key for the property to be removed.
SecurityException
- if a security manager exists and its SecurityManager.checkSecurityAccess(java.lang.String)
method denies
access to remove this provider's properties.