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Showing content from https://docs.oracle.com/en/java/javase/21/docs/api/java.base/java/security/Principal.html below:

Principal (Java SE 21 & JDK 21)

All Known Subinterfaces:

GroupPrincipal, UserPrincipal

All Known Implementing Classes:

HttpPrincipal, Identity, IdentityScope, JMXPrincipal, KerberosPrincipal, LdapPrincipal, NTDomainPrincipal, NTSid, NTSidDomainPrincipal, NTSidGroupPrincipal, NTSidPrimaryGroupPrincipal, NTSidUserPrincipal, NTUserPrincipal, Signer, UnixNumericGroupPrincipal, UnixNumericUserPrincipal, UnixPrincipal, UserPrincipal, 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.

Since:

1.1

See Also:

• X509Certificate

• Method Summary

  boolean

  Compares this Principal to the specified object.

  Returns the name of this Principal.

  int

  Returns a hashcode for this Principal.

  default boolean

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

  Returns a string representation of this Principal.

• Method Details
  • 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.

    Overrides:

    equals in class Object

    Parameters:

    another - Principal to compare with.

    Returns:

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

    See Also:

    • Object.hashCode()
    • HashMap

  • toString

    Returns a string representation of this Principal.

    Overrides:

    toString in class Object

    Returns:

    a string representation of this Principal.

  • hashCode

    int hashCode()

    Returns a hashcode for this Principal.

    Overrides:

    hashCode in class Object

    Returns:

    a hashcode for this Principal.

    See Also:

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

  • getName

    Returns the name of this Principal.

    Returns:

    the name of this Principal.

  • implies default boolean implies(Subject subject)

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

    Implementation Requirements:

    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.

    Parameters:

    subject - the Subject

    Returns:

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

    Since:

    1.8

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