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| java.lang.Object
 java.security.PolicySpi
| PolicySpi | | abstract public class PolicySpi (Code) | | This class defines the Service Provider Interface (SPI)
for the Policy class.
All the abstract methods in this class must be implemented by each
service provider who wishes to supply a Policy implementation.
Subclass implementations of this abstract class must provide
a public constructor that takes a Policy.Parameters
object as an input parameter. This constructor also must throw
an IllegalArgumentException if it does not understand the
Policy.Parameters input.
version:
1.8, 05/05/07
since:
1.6 |
| Method Summary | |
| protected PermissionCollection | engineGetPermissions(CodeSource codesource)
Return a PermissionCollection object containing the set of
permissions granted to the specified CodeSource.
The default implementation of this method returns
Policy.UNSUPPORTED_EMPTY_COLLECTION object. | | protected PermissionCollection | engineGetPermissions(ProtectionDomain domain)
Return a PermissionCollection object containing the set of
permissions granted to the specified ProtectionDomain.
The default implementation of this method returns
Policy.UNSUPPORTED_EMPTY_COLLECTION object. | | abstract protected boolean | engineImplies(ProtectionDomain domain, Permission permission)
Check whether the policy has granted a Permission to a ProtectionDomain.
Parameters:
domain - the ProtectionDomain to check.
Parameters:
permission - check whether this permission is granted to thespecified domain. | | protected void | engineRefresh()
Refreshes/reloads the policy configuration. |
| engineGetPermissions | | protected PermissionCollection engineGetPermissions(CodeSource codesource)(Code) | | Return a PermissionCollection object containing the set of
permissions granted to the specified CodeSource.
The default implementation of this method returns
Policy.UNSUPPORTED_EMPTY_COLLECTION object. This method can be
overridden if the policy implementation can return a set of
permissions granted to a CodeSource.
Parameters:
codesource - the CodeSource to which the returnedPermissionCollection has been granted. a set of permissions granted to the specified CodeSource.If this operation is supported, the returnedset of permissions must be a new mutable instanceand it must support heterogeneous Permission types.If this operation is not supported,Policy.UNSUPPORTED_EMPTY_COLLECTION is returned. |
| engineGetPermissions | | protected PermissionCollection engineGetPermissions(ProtectionDomain domain)(Code) | | Return a PermissionCollection object containing the set of
permissions granted to the specified ProtectionDomain.
The default implementation of this method returns
Policy.UNSUPPORTED_EMPTY_COLLECTION object. This method can be
overridden if the policy implementation can return a set of
permissions granted to a ProtectionDomain.
Parameters:
domain - the ProtectionDomain to which the returnedPermissionCollection has been granted. a set of permissions granted to the specified ProtectionDomain.If this operation is supported, the returnedset of permissions must be a new mutable instanceand it must support heterogeneous Permission types.If this operation is not supported,Policy.UNSUPPORTED_EMPTY_COLLECTION is returned. |
| engineImplies | | abstract protected boolean engineImplies(ProtectionDomain domain, Permission permission)(Code) | | Check whether the policy has granted a Permission to a ProtectionDomain.
Parameters:
domain - the ProtectionDomain to check.
Parameters:
permission - check whether this permission is granted to thespecified domain. boolean true if the permission is granted to the domain. |
| engineRefresh | | protected void engineRefresh()(Code) | | Refreshes/reloads the policy configuration. The behavior of this method
depends on the implementation. For example, calling refresh
on a file-based policy will cause the file to be re-read.
The default implementation of this method does nothing.
This method should be overridden if a refresh operation is supported
by the policy implementation.
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