com.datastax.driver.core

Enum ProtocolVersion

java.lang.Object

java.lang.Enum<ProtocolVersion>

com.datastax.driver.core.ProtocolVersion

All Implemented Interfaces:

Serializable, Comparable<ProtocolVersion>

public enum ProtocolVersion
extends Enum<ProtocolVersion>

Versions of the native protocol supported by the driver.

Enum Constant Summary

Enum Constants

Enum Constant and Description
V1
V2
V3

Field Summary

Fields

Modifier and Type	Field and Description
static ProtocolVersion	NEWEST_SUPPORTED The most recent protocol version supported by the driver.

Method Summary

Modifier and Type	Method and Description
static ProtocolVersion	fromInt(int i) Returns the value matching an integer version.
int	toInt() Get the int representation of a protocol version.
static ProtocolVersion	valueOf(String name) Returns the enum constant of this type with the specified name.
static ProtocolVersion[]	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

V1

public static final ProtocolVersion V1

V2

public static final ProtocolVersion V2

V3

public static final ProtocolVersion V3

Field Detail

NEWEST_SUPPORTED

public static final ProtocolVersion NEWEST_SUPPORTED

The most recent protocol version supported by the driver.

Method Detail

values

public static ProtocolVersion[] 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 (ProtocolVersion c : ProtocolVersion.values())
    System.out.println(c);

Returns:

an array containing the constants of this enum type, in the order they are declared

valueOf

public static ProtocolVersion valueOf(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:

IllegalArgumentException - if this enum type has no constant with the specified name

NullPointerException - if the argument is null

toInt

public int toInt()

Get the int representation of a protocol version. This is for use internally by Cassandra to ensure that the correct version is specified when serializing and deserializing using classes from the imported driver library.

Returns:

the protocol version as an int

fromInt

public static ProtocolVersion fromInt(int i)

Returns the value matching an integer version.

Parameters:

i - the version as an integer.

Returns:

the matching enum value.

Throws:

IllegalArgumentException - if the argument doesn't match any known version.