程序包 java.security

接口 Principal

所有已知子接口:

Group, GroupPrincipal, UserPrincipal

所有已知实现类:

Identity, IdentityScope, Signer, X500Principal

public interface Principal

This interface represents the abstract notion of a principal, which can be used to represent any entity, such as an individual, a corporation, and a login id.

另请参阅:

X509Certificate

方法概要

限定符和类型	方法	说明
boolean	equals(Object another)	Compares this principal to the specified object.
String	getName()	Returns the name of this principal.
int	hashCode()	Returns a hashcode for this principal.
default boolean	implies(Subject subject)	Returns true if the specified subject is implied by this principal.
String	toString()	Returns a string representation of this principal.

方法详细资料

equals

boolean equals(Object another)

Compares this principal to the specified object. Returns true if the object passed in matches the principal represented by the implementation of this interface.

覆盖:

equals 在类中 Object

参数:

another - principal to compare with.

返回:

true if the principal passed in is the same as that encapsulated by this principal, and false otherwise.

另请参阅:

Object.hashCode(), HashMap

toString

String toString()

Returns a string representation of this principal.

覆盖:

toString 在类中 Object

返回:

a string representation of this principal.

hashCode

int hashCode()

Returns a hashcode for this principal.

覆盖:

hashCode 在类中 Object

返回:

a hashcode for this principal.

另请参阅:

Object.equals(java.lang.Object), System.identityHashCode(java.lang.Object)

getName

String getName()

Returns the name of this principal.

返回:

the name of this principal.

implies

default boolean implies(Subject subject)

Returns true if the specified subject is implied by this principal.

The default implementation of this method returns true if subject is non-null and contains at least one principal that is equal to this principal.

Subclasses may override this with a different implementation, if necessary.

参数:

subject - the Subject

返回:

true if subject is non-null and is implied by this principal, or false otherwise.

从以下版本开始:

1.8