Protocol (Apache Tomcat 10.1.56 API Documentation)

java.lang.Object
- java.lang.Enum<Protocol>
- - org.apache.tomcat.util.net.openssl.ciphers.Protocol

All Implemented Interfaces:

java.io.Serializable, java.lang.Comparable<Protocol>
```
public enum Protocol
extends java.lang.Enum<Protocol>
```
Represents the SSL/TLS protocol versions supported by OpenSSL.

Enum Constant Summary

Enum Constants
Enum Constant Description

SSLv2
SSL version 2.

SSLv3
SSL version 3.

TLSv1
TLS version 1.0.

TLSv1_2
TLS version 1.2.

TLSv1_3
TLS version 1.3.

Method Summary

All Methods Static Methods Concrete Methods
Modifier and Type	Method	Description
`static Protocol`	`valueOf(java.lang.String name)`	Returns the enum constant of this type with the specified name.
`static Protocol[]`	`values()`	Returns an array containing the constants of this enum type, in the order they are declared.

Methods inherited from class java.lang.Enum
clone, compareTo, equals, finalize, getDeclaringClass, hashCode, name, ordinal, toString, valueOf

Methods inherited from class java.lang.Object
getClass, notify, notifyAll, wait, wait, wait

- Enum Constant Detail
  - SSLv3
```
public static final Protocol SSLv3
```
    SSL version 3.
  - SSLv2
```
public static final Protocol SSLv2
```
    SSL version 2.
  - TLSv1
```
public static final Protocol TLSv1
```
    TLS version 1.0.
  - TLSv1_2
```
public static final Protocol TLSv1_2
```
    TLS version 1.2.
  - TLSv1_3
```
public static final Protocol TLSv1_3
```
    TLS version 1.3.
- Method Detail
  - values
```
public static Protocol[] values()
```
    Returns an array containing the constants of this enum type, in the order they are declared. This method may be used to iterate over the constants as follows:
    for (Protocol c : Protocol.values()) System.out.println(c);
    Returns:
    
    an array containing the constants of this enum type, in the order they are declared
  - valueOf
```
public static Protocol valueOf(java.lang.String name)
```
    Returns the enum constant of this type with the specified name. The string must match exactly an identifier used to declare an enum constant in this type. (Extraneous whitespace characters are not permitted.)
    
    Parameters:
    
    name - the name of the enum constant to be returned.
    
    Returns:
    
    the enum constant with the specified name
    
    Throws:
    
    java.lang.IllegalArgumentException - if this enum type has no constant with the specified name
    
    java.lang.NullPointerException - if the argument is null