This ProtectionDomain class encapsulates the characteristics of a domain, which encloses a set of classes whose instances are granted a set of permissions when being executed on behalf of a given set of Principals.
A static set of permissions can be bound to a ProtectionDomain when it is constructed; such permissions are granted to the domain regardless of the Policy in force. However, to support dynamic security policies, a ProtectionDomain can also be constructed such that it is dynamically mapped to a set of permissions by the current Policy whenever a permission is checked.
Creates a new ProtectionDomain with the given CodeSource and Permissions.
Creates a new ProtectionDomain qualified by the given CodeSource, Permissions, ClassLoader and array of Principals.
Returns the ClassLoader of this domain.
Returns the CodeSource of this domain.
Returns the static permissions granted to this domain.
Returns an array of principals for this domain.
Check and see if this ProtectionDomain implies the permissions expressed in the Permission object.
Convert a ProtectionDomain to a String.
|Methods inherited from class java.lang. Object|
|clone , equals , finalize , getClass , hashCode , notify , notifyAll , wait , wait , wait|
public ProtectionDomain(CodeSource codesource, PermissionCollection permissions)
public ProtectionDomain(CodeSource codesource, PermissionCollection permissions, ClassLoader classloader, Principal principals)
This constructor is typically used by ClassLoaders and DomainCombiners which delegate to Policy to actively associate the permissions granted to this domain. This constructor affords the Policy provider the opportunity to augment the supplied PermissionCollection to reflect policy changes.
public final CodeSource getCodeSource()
public final ClassLoader getClassLoader()
public final Principal getPrincipals()
public final PermissionCollection getPermissions()
public boolean implies(Permission permission)
The set of permissions evaluated is a function of whether the ProtectionDomain was constructed with a static set of permissions or it was bound to a dynamically mapped set of permissions.
If the ProtectionDomain was constructed to a statically bound PermissionCollection then the permission will only be checked against the PermissionCollection supplied at construction.
However, if the ProtectionDomain was constructed with the constructor variant which supports dynamically binding permissions, then the permission will be checked against the combination of the PermissionCollection supplied at construction and the current Policy binding.
public String toString()