public interface PrincipalComparator
An object that implements the
java.security.Principal
interface typically also implements this interface to provide
a means for comparing that object to a specified Subject
.
The comparison is achieved via the implies
method.
The implementation of the implies
method determines
whether this object "implies" the specified Subject
.
One example application of this method may be for
a "group" object to imply a particular Subject
if that Subject
belongs to the group.
Another example application of this method would be for
"role" object to imply a particular Subject
if that Subject
is currently acting in that role.
Although classes that implement this interface typically
also implement the java.security.Principal
interface,
it is not required. In other words, classes may implement the
java.security.Principal
interface by itself,
the PrincipalComparator
interface by itself,
or both at the same time.
- See Also:
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Method Summary
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Method Details
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implies
Check if the specifiedSubject
is implied by this object.- Parameters:
subject
- the subject to compare- Returns:
- true if the specified
Subject
is implied by this object, or false otherwise.
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