PermissionsHash

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Class

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Deprecated

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org.eclipse.osgi.framework.internal.core
Class PermissionsHash

java.lang.Object
  java.security.PermissionCollection
      org.eclipse.osgi.framework.internal.core.PermissionsHash

All Implemented Interfaces:: java.io.Serializable

class PermissionsHash
extends java.security.PermissionCollection

A simple Hashtable based collection of Permission objects.

The class' .implies method simply scans each permission individually and asks if the permission should be granted. No addition semantics is provided by the collection, so it is not possible to grant permissions whose "grantedness" is split across multiple stored Permissions.

Instances of this class can be used to store heterogeneous collections of permissions, as long as it is not necessary to remember when multiple occurances of .equal permissions are added.

Field Summary

(package private) java.util.Hashtable perms
          A hashtable to store the elements of the collection.

Fields inherited from class java.security.PermissionCollection

Constructor Summary

PermissionsHash()
          Constructs a new instance of this class.

Method Summary

void add(java.security.Permission perm)
          Adds the argument to the collection.

java.util.Enumeration elements()
          Answers an enumeration of the permissions in the receiver.

boolean implies(java.security.Permission perm)
          Indicates whether the argument permission is implied by the permissions contained in the receiver.

Methods inherited from class java.security.PermissionCollection

isReadOnly, setReadOnly, toString

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Field Detail

perms

java.util.Hashtable perms

A hashtable to store the elements of the collection.

Constructor Detail