| java.lang.Object | ||
| ↳ | java.security.PolicySpi | |
| ↳ | sun.security.provider.PolicySpiFile | |
Class Overview
This class wraps the PolicyFile subclass implementation of Policy inside a PolicySpi implementation that is available from the SUN provider via the Policy.getInstance calls.
Summary
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| Protected Methods | |||||||||||
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Return a PermissionCollection object containing the set of
permissions granted to the specified CodeSource.
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Return a PermissionCollection object containing the set of
permissions granted to the specified ProtectionDomain.
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Check whether the policy has granted a Permission to a ProtectionDomain.
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Refreshes/reloads the policy configuration.
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Inherited Methods | |||||||||||
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From class
java.security.PolicySpi
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From class
java.lang.Object
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Public Constructors
Protected Methods
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. 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 returned PermissionCollection has been granted. |
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Returns
- a set of permissions granted to the specified CodeSource. If this operation is supported, the returned set of permissions must be a new mutable instance and it must support heterogeneous Permission types. If this operation is not supported, Policy.UNSUPPORTED_EMPTY_COLLECTION is returned.
protected PermissionCollection engineGetPermissions (ProtectionDomain d)
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
| d | the ProtectionDomain to which the returned PermissionCollection has been granted. |
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Returns
- a set of permissions granted to the specified ProtectionDomain. If this operation is supported, the returned set of permissions must be a new mutable instance and it must support heterogeneous Permission types. If this operation is not supported, Policy.UNSUPPORTED_EMPTY_COLLECTION is returned.
protected boolean engineImplies (ProtectionDomain d, Permission p)
Check whether the policy has granted a Permission to a ProtectionDomain.
Parameters
| d | the ProtectionDomain to check. |
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| p | check whether this permission is granted to the specified domain. |
Returns
- boolean true if the permission is granted to the domain.
protected void engineRefresh ()
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.