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UnixNumericGroupPrincipal (Java Authentication and Authorization Service ) - JDK 5 Documentation v1.4.0, Java 2 SDK 英文文档

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com.sun.security.auth
Class UnixNumericGroupPrincipal

java.lang.Object
  |
  +--com.sun.security.auth.UnixNumericGroupPrincipal

All Implemented Interfaces:

Principal, Serializable

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public class UnixNumericGroupPrincipal

extends Object

implements Principal, Serializable

This class implements the Principal interface and represents a user's Unix group identification number (GID).

Principals such as this UnixNumericGroupPrincipal may be associated with a particular Subject to augment that Subject with an additional identity. Refer to the Subject class for more information on how to achieve this. Authorization decisions can then be based upon the Principals associated with a Subject.

See Also:

Principal, Subject, Serialized Form

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Constructor Summary

UnixNumericGroupPrincipal(long name, boolean primaryGroup)           Create a UnixNumericGroupPrincipal using a long representation of the user's group identification number (GID).

UnixNumericGroupPrincipal(String name, boolean primaryGroup)           Create a UnixNumericGroupPrincipal using a String representation of the user's group identification number (GID).

 

Method Summary
boolean	equals(Object o)           Compares the specified Object with this UnixNumericGroupPrincipal for equality.
String	getName()           Return the user's group identification number (GID) for this UnixNumericGroupPrincipal.
int	hashCode()           Return a hash code for this UnixNumericGroupPrincipal.
boolean	isPrimaryGroup()           Return whether this group identification number (GID) represents the primary group to which this user belongs.
long	longValue()           Return the user's group identification number (GID) for this UnixNumericGroupPrincipal as a long.
String	toString()           Return a string representation of this UnixNumericGroupPrincipal.

 

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

 

Constructor Detail

UnixNumericGroupPrincipal

public UnixNumericGroupPrincipal(String name,
                                 boolean primaryGroup)

Create a UnixNumericGroupPrincipal using a String representation of the user's group identification number (GID).

Parameters:

name - the user's group identification number (GID) for this user.

primaryGroup - true if the specified GID represents the primary group to which this user belongs.

Throws:

NullPointerException - if the name is null.

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UnixNumericGroupPrincipal

public UnixNumericGroupPrincipal(long name,
                                 boolean primaryGroup)

Create a UnixNumericGroupPrincipal using a long representation of the user's group identification number (GID).

Parameters:

name - the user's group identification number (GID) for this user represented as a long.

primaryGroup - true if the specified GID represents the primary group to which this user belongs.

Method Detail

getName

public String getName()

Return the user's group identification number (GID) for this UnixNumericGroupPrincipal.

Specified by:

getName in interface Principal

Returns:

the user's group identification number (GID) for this UnixNumericGroupPrincipal

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longValue

public long longValue()

Return the user's group identification number (GID) for this UnixNumericGroupPrincipal as a long.

Returns:

the user's group identification number (GID) for this UnixNumericGroupPrincipal as a long.

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isPrimaryGroup

public boolean isPrimaryGroup()

Return whether this group identification number (GID) represents the primary group to which this user belongs.

Returns:

true if this group identification number (GID) represents the primary group to which this user belongs, or false otherwise.

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toString

public String toString()

Return a string representation of this UnixNumericGroupPrincipal.

Specified by:

toString in interface Principal

Overrides:

toString in class Object

Returns:

a string representation of this UnixNumericGroupPrincipal.

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equals

public boolean equals(Object o)

Compares the specified Object with this UnixNumericGroupPrincipal for equality. Returns true if the given object is also a UnixNumericGroupPrincipal and the two UnixNumericGroupPrincipals have the same group identification number (GID).

Specified by:

equals in interface Principal

Overrides:

equals in class Object

Parameters:

o - Object to be compared for equality with this UnixNumericGroupPrincipal.

Returns:

true if the specified Object is equal equal to this UnixNumericGroupPrincipal.

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hashCode

public int hashCode()

Return a hash code for this UnixNumericGroupPrincipal.

Specified by:

hashCode in interface Principal

Overrides:

hashCode in class Object

Returns:

a hash code for this UnixNumericGroupPrincipal.

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