Package com.spotfire.server.util

Class Guid

java.lang.Object
com.spotfire.server.util.Guid
All Implemented Interfaces:
Serializable
public final class Guid extends Object implements Serializable
This class represents an universally unique identifier (UUID), also known as globally unique identifier (GUID), see UUID. A UUID represents a 128-bit value and is either guaranteed to be different from all other UUIDs/GUIDs generated until 3400 A.D., or extremely likely to be different.
This class uses randomly generated UUID, i.e., an UUID of version type 4, see UUID.version().
Since:
3.0
Author:
Patrick Taylor
See Also:

  • Field Summary

    Fields
    Modifier and Type
    Field
    Description
    static final Guid
    EMPTY
    A read-only Guid instance whose value is all zeros.

  • Constructor Summary

    Constructors
    Constructor
    Description
    Guid()
    Constructs a new Guid.
    Guid(String guid)
    Constructs a new Guid using the specified guid string representation as described in the toString() method.

  • Method Summary

    Modifier and Type
    Method
    Description
    boolean
    equals(Object obj)
    Compares this object to the supplied object.
    int
    hashCode()
    Returns a hash code for this Guid.
    static boolean
    isGuid(String guid)
    Tells whether or not the supplied guid string corresponds to a valid Guid.
    static Guid
    parseGuid(String guid)
    Constructs a new Guid using the specified guid string representation as described in the toString() method.
    String
    toString()
    Returns a String representation of this Guid.

    Methods inherited from class java.lang.Object

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

  • Field Details

    • EMPTY

      public static final Guid EMPTY
      A read-only Guid instance whose value is all zeros.

  • Constructor Details

    • Guid

      public Guid()
      Constructs a new Guid.
      Since:
      3.0

    • Guid

      public Guid(String guid)
      Constructs a new Guid using the specified guid string representation as described in the toString() method.
      Parameters:
      guid - a string that specifies a Guid.
      Throws:
      IllegalArgumentException - if guid does not conform to the string representation of a Guid as described in toString().
      Since:
      3.0

  • Method Details

    • parseGuid

      public static Guid parseGuid(String guid)
      Constructs a new Guid using the specified guid string representation as described in the toString() method.
      Parameters:
      guid - a string that specifies a Guid.
      Returns:
      a Guid with the specified value.
      Throws:
      IllegalArgumentException - if guid does not conform to the string representation of a Guid as described in toString().
      Since:
      3.0

    • isGuid

      public static boolean isGuid(String guid)
      Tells whether or not the supplied guid string corresponds to a valid Guid.
      Parameters:
      guid - a string that specifies a Guid.
      Returns:
      true if guid corresponds to a valid Guid, false otherwise.
      Since:
      3.0

    • equals

      public boolean equals(Object obj)
      Compares this object to the supplied object. The result is true if the argument it not null, it is of type Guid and it contains the same value as this Guid.
      Overrides:
      equals in class Object
      Parameters:
      obj - the object to compare with.
      Returns:
      true if the objects are the same, false otherwise
      Since:
      3.0

    • hashCode

      public int hashCode()
      Returns a hash code for this Guid.
      Overrides:
      hashCode in class Object
      Returns:
      a hash code for this Guid.
      Since:
      3.0

    • toString

      public String toString()
      Returns a String representation of this Guid. The Guid string representation is on the following format, where x represents a hexadecimal ([0-9][a-f][A-F]) digit, "xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx".
      The returned string is always in lower case.
      Overrides:
      toString in class Object
      Returns:
      a String representation of this Guid.
      Since:
      3.0
      See Also: