Java Module jdk.security.auth Package com.sun.security.auth Class UnixNumericGroupPrincipal（JDK11）

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

All Implemented Interfaces:
Serializable, Principal
```
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

Constructor Summary

Constructors
Constructor	Description
`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

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`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 declared in class java.lang.Object
clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Methods declared in interface java.security.Principal
implies

- 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.
  - 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
  - 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.
  - 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.
  - 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.
  - 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 to this UnixNumericGroupPrincipal.
    See Also:
    Object.hashCode(), HashMap
  - 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.
    See Also:
    Object.equals(java.lang.Object), System.identityHashCode(java.lang.Object)

本文分类：JavaAPI
本文标签：JavaAPI JDK11 Java11
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Java Module jdk.security.auth Package com.sun.security.auth Class UnixNumericGroupPrincipal（JDK11）

Class UnixNumericGroupPrincipal

Constructor Summary

Method Summary

Methods declared in class java.lang.Object

Methods declared in interface java.security.Principal

Constructor Detail

UnixNumericGroupPrincipal

UnixNumericGroupPrincipal

Method Detail

getName

longValue

isPrimaryGroup

toString

equals

hashCode