Java Module java.security.jgss Package javax.security.auth.kerberos Class KerberosPrincipal（JDK11）

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java.lang.Object
- javax.security.auth.kerberos.KerberosPrincipal

All Implemented Interfaces:

Serializable, Principal
```
public final class KerberosPrincipal
extends Object
implements Principal, Serializable
```
This class encapsulates a Kerberos principal.

Since:

1.4

See Also:

Serialized Form

Field Summary

Fields
Modifier and Type	Field	Description
`static int`	`KRB_NT_PRINCIPAL`	user principal name type.
`static int`	`KRB_NT_SRV_HST`	service with host name as instance (telnet, rcommands) name type.
`static int`	`KRB_NT_SRV_INST`	service and other unique instance (krbtgt) name type.
`static int`	`KRB_NT_SRV_XHST`	service with host as remaining components name type.
`static int`	`KRB_NT_UID`	unique ID name type.
`static int`	`KRB_NT_UNKNOWN`	unknown name type.

Constructor Summary

Constructors
Constructor	Description
`KerberosPrincipal(String name)`	Constructs a `KerberosPrincipal` from the provided string input.
`KerberosPrincipal(String name, int nameType)`	Constructs a `KerberosPrincipal` from the provided string and name type input.

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`boolean`	`equals(Object other)`	Compares the specified object with this principal for equality.
`String`	`getName()`	The returned string corresponds to the single-string representation of a Kerberos Principal name as specified in Section 2.1 of RFC 1964.
`int`	`getNameType()`	Returns the name type of the `KerberosPrincipal`.
`String`	`getRealm()`	Returns the realm component of this Kerberos principal.
`int`	`hashCode()`	Returns a hash code for this `KerberosPrincipal`.
`String`	`toString()`	Returns an informative textual representation of this `KerberosPrincipal`.

Methods declared in class java.lang.Object
clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Methods declared in interface java.security.Principal
implies

- Field Detail
  - KRB_NT_UNKNOWN
```
public static final int KRB_NT_UNKNOWN
```
    unknown name type.
    
    See Also:
    
    Constant Field Values
  - KRB_NT_PRINCIPAL
```
public static final int KRB_NT_PRINCIPAL
```
    user principal name type.
    
    See Also:
    
    Constant Field Values
  - KRB_NT_SRV_INST
```
public static final int KRB_NT_SRV_INST
```
    service and other unique instance (krbtgt) name type.
    
    See Also:
    
    Constant Field Values
  - KRB_NT_SRV_HST
```
public static final int KRB_NT_SRV_HST
```
    service with host name as instance (telnet, rcommands) name type.
    
    See Also:
    
    Constant Field Values
  - KRB_NT_SRV_XHST
```
public static final int KRB_NT_SRV_XHST
```
    service with host as remaining components name type.
    
    See Also:
    
    Constant Field Values
  - KRB_NT_UID
```
public static final int KRB_NT_UID
```
    unique ID name type.
    
    See Also:
    
    Constant Field Values
- Constructor Detail
  - KerberosPrincipal
```
public KerberosPrincipal(String name)
```
    Constructs a KerberosPrincipal from the provided string input. The name type for this principal defaults to KRB_NT_PRINCIPAL This string is assumed to contain a name in the format that is specified in Section 2.1.1. (Kerberos Principal Name Form) of RFC 1964 (for example, duke@FOO.COM, where duke represents a principal, and FOO.COM represents a realm).
    If the input name does not contain a realm, the default realm is used. The default realm can be specified either in a Kerberos configuration file or via the java.security.krb5.realm system property. For more information, see the Kerberos Requirements. Additionally, if a security manager is installed, a ServicePermission must be granted and the service principal of the permission must minimally be inside the KerberosPrincipal's realm. For example, if the result of new KerberosPrincipal("user") is user@EXAMPLE.COM, then a ServicePermission with service principal host/www.example.com@EXAMPLE.COM (and any action) must be granted.
    
    Parameters:
    
    name - the principal name
    
    Throws:
    
    IllegalArgumentException - if name is improperly formatted, if name is null, or if name does not contain the realm to use and the default realm is not specified in either a Kerberos configuration file or via the java.security.krb5.realm system property.
    
    SecurityException - if a security manager is installed and name does not contain the realm to use, and a proper ServicePermission as described above is not granted.
  - KerberosPrincipal
```
public KerberosPrincipal(String name,
                         int nameType)
```
    Constructs a KerberosPrincipal from the provided string and name type input. The string is assumed to contain a name in the format that is specified in Section 2.1 (Mandatory Name Forms) of RFC 1964. Valid name types are specified in Section 6.2 (Principal Names) of RFC 4120. The input name must be consistent with the provided name type. (for example, duke@FOO.COM, is a valid input string for the name type, KRB_NT_PRINCIPAL where duke represents a principal, and FOO.COM represents a realm).
    If the input name does not contain a realm, the default realm is used. The default realm can be specified either in a Kerberos configuration file or via the java.security.krb5.realm system property. For more information, see the Kerberos Requirements. Additionally, if a security manager is installed, a ServicePermission must be granted and the service principal of the permission must minimally be inside the KerberosPrincipal's realm. For example, if the result of new KerberosPrincipal("user") is user@EXAMPLE.COM, then a ServicePermission with service principal host/www.example.com@EXAMPLE.COM (and any action) must be granted.
    
    Parameters:
    
    name - the principal name
    
    nameType - the name type of the principal
    
    Throws:
    
    IllegalArgumentException - if name is improperly formatted, if name is null, if the nameType is not supported, or if name does not contain the realm to use and the default realm is not specified in either a Kerberos configuration file or via the java.security.krb5.realm system property.
    
    SecurityException - if a security manager is installed and name does not contain the realm to use, and a proper ServicePermission as described above is not granted.
- Method Detail
  - getRealm
```
public String getRealm()
```
    Returns the realm component of this Kerberos principal.
    
    Returns:
    
    the realm component of this Kerberos principal.
  - hashCode
```
public int hashCode()
```
    Returns a hash code for this KerberosPrincipal. The hash code is defined to be the result of the following calculation:
    hashCode = getName().hashCode();
    Specified by:
    
    hashCode in interface Principal
    
    Overrides:
    
    hashCode in class Object
    
    Returns:
    
    a hash code for this KerberosPrincipal.
    
    See Also:
    
    Object.equals(java.lang.Object), System.identityHashCode(java.lang.Object)
  - equals
```
public boolean equals(Object other)
```
    Compares the specified object with this principal for equality. Returns true if the given object is also a KerberosPrincipal and the two KerberosPrincipal instances are equivalent. More formally two KerberosPrincipal instances are equal if the values returned by getName() are equal.
    
    Specified by:
    
    equals in interface Principal
    
    Overrides:
    
    equals in class Object
    
    Parameters:
    
    other - the object to compare to
    
    Returns:
    
    true if the object passed in represents the same principal as this one, false otherwise.
    
    See Also:
    
    Object.hashCode(), HashMap
  - getName
```
public String getName()
```
    The returned string corresponds to the single-string representation of a Kerberos Principal name as specified in Section 2.1 of RFC 1964.
    
    Specified by:
    
    getName in interface Principal
    
    Returns:
    
    the principal name.
  - getNameType
```
public int getNameType()
```
    Returns the name type of the KerberosPrincipal. Valid name types are specified in Section 6.2 of RFC4120.
    
    Returns:
    
    the name type.
  - toString
```
public String toString()
```
    Returns an informative textual representation of this KerberosPrincipal.
    
    Specified by:
    
    toString in interface Principal
    
    Overrides:
    
    toString in class Object
    
    Returns:
    
    an informative textual representation of this KerberosPrincipal.

Java Module java.security.jgss Package javax.security.auth.kerberos Class KerberosPrincipal（JDK11）

Class KerberosPrincipal

Field Summary

Constructor Summary

Method Summary

Methods declared in class java.lang.Object

Methods declared in interface java.security.Principal

Field Detail

KRB_NT_UNKNOWN

KRB_NT_PRINCIPAL

KRB_NT_SRV_INST

KRB_NT_SRV_HST

KRB_NT_SRV_XHST

KRB_NT_UID

Constructor Detail

KerberosPrincipal

KerberosPrincipal

Method Detail

getRealm

hashCode

equals

getName

getNameType

toString