public class ProtectionDomain extends Object
CodeSource
. Thus, any
class loaded from the specified CodeSource
is treated as part of
this domain. The set of permissions is represented by an instance of
PermissionCollection
.
Every class in the system will belong to one and only one
ProtectionDomain
.
Constructor and Description |
---|
ProtectionDomain(CodeSource codesource,
PermissionCollection permissions)
Initializes a new instance of
ProtectionDomain representing
the specified CodeSource and set of permissions. |
ProtectionDomain(CodeSource codesource,
PermissionCollection permissions,
ClassLoader classloader,
Principal[] principals)
This method initializes a new instance of
ProtectionDomain
given its CodeSource , granted permissions, associated
ClassLoader and Principal s. |
Modifier and Type | Method and Description |
---|---|
ClassLoader |
getClassLoader()
Returns the
ClassLoader of this domain. |
CodeSource |
getCodeSource()
Returns the
CodeSource of this domain. |
PermissionCollection |
getPermissions()
Returns the
PermissionCollection of this domain. |
Principal[] |
getPrincipals()
Returns a clone of the
Principal s of this domain. |
boolean |
implies(Permission permission)
Tests whether or not the specified
Permission is implied by the
set of permissions granted to this domain. |
String |
toString()
Returns a string representation of this object.
|
public ProtectionDomain(CodeSource codesource, PermissionCollection permissions)
ProtectionDomain
representing
the specified CodeSource
and set of permissions. No permissions
can be added later to the PermissionCollection
and this contructor
will call the setReadOnly
method on the specified set of
permissions.codesource
- The CodeSource
for this domain.permissions
- The set of permissions for this domain.PermissionCollection.setReadOnly()
public ProtectionDomain(CodeSource codesource, PermissionCollection permissions, ClassLoader classloader, Principal[] principals)
ProtectionDomain
given its CodeSource
, granted permissions, associated
ClassLoader
and Principal
s.
Similar to the previous constructor, if the designated set of
permissions is not null
, the setReadOnly
method
is called on that set.
codesource
- The CodeSource
for this domain.permissions
- The permission set for this domain.classloader
- the ClassLoader associated with this domain.principals
- the array of Principal
s associated with this domain.PermissionCollection.setReadOnly()
public final CodeSource getCodeSource()
CodeSource
of this domain.CodeSource
of this domain.public final ClassLoader getClassLoader()
ClassLoader
of this domain.ClassLoader
of this domain.public final Principal[] getPrincipals()
Principal
s of this domain.Principal
s of this domain.public final PermissionCollection getPermissions()
PermissionCollection
of this domain.PermissionCollection
of this domain.public boolean implies(Permission permission)
Permission
is implied by the
set of permissions granted to this domain.permission
- the Permission
to test.true
if the specified Permission
is implied
for this domain, false
otherwise.public String toString()
CodeSource
and set of permissions associated with this domain.toString
in class Object
Object.getClass()
,
Object.hashCode()
,
Class.getName()
,
Integer.toHexString(int)