PermissionCollection

PermissionCollection

java.security

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Java 1.2

serializable

This class is used by Permissions to store a collection of Permission objects that are all the same type. Like the Permission class itself, PermissionCollection defines an implies( ) method that can determine whether a requested Permission is implied by any of the Permission objects in the collection. Some Permission types may require a custom PermissionCollection type in order to correctly implement the implies( ) method. In this case, the Permission subclass should override newPermissionCollection( ) to return a Permission of the appropriate type. PermissionCollection is used by system code that manages security policies. Applications rarely need to use it.

Figure 14-28. java.security.PermissionCollection

 public abstract class  PermissionCollection  implements Serializable {  // Public Constructors  public  PermissionCollection  ( );  // Public Instance Methods  public abstract void  add  (Permission  permission  );        public abstract java.util.Enumeration<Permission>  elements  ( );        public abstract boolean  implies  (Permission  permission  );        public boolean  isReadOnly  ( );        public void  setReadOnly  ( );  // Public Methods Overriding Object  public String  toString  ( );   } 

Subclasses

Permissions

Passed To

ProtectionDomain.ProtectionDomain( )

Returned By

Too many methods to list.