com.aliyun.openservices.iot.api.message.callback

Enum MessageCallback.Action

java.lang.Object

java.lang.Enum<MessageCallback.Action>

com.aliyun.openservices.iot.api.message.callback.MessageCallback.Action

All Implemented Interfaces:

Serializable, Comparable<MessageCallback.Action>

Enclosing interface:

MessageCallback

public static enum MessageCallback.Action
extends Enum<MessageCallback.Action>

Enum Constant Summary

Enum Constants

Enum Constant and Description
CommitAckManually Consume message successfully and reply ack manually for message which qos > 0, client won't reply ack, you should call MessageClient.ack() to reply ack.
CommitFailure Fail to consume message .
CommitSuccess Message is consumed successfully.

Method Summary

Modifier and Type	Method and Description
static MessageCallback.Action	valueOf(String name) Returns the enum constant of this type with the specified name.
static MessageCallback.Action[]	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

CommitSuccess

public static final MessageCallback.Action CommitSuccess

Message is consumed successfully. For message which qos > 0, client will reply ack

CommitFailure

public static final MessageCallback.Action CommitFailure

Fail to consume message . for message which qos > 0, client won't reply ack and server will redelivery it later

CommitAckManually

public static final MessageCallback.Action CommitAckManually

Consume message successfully and reply ack manually for message which qos > 0, client won't reply ack, you should call MessageClient.ack() to reply ack.

Method Detail

values

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

Returns:

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

valueOf

public static MessageCallback.Action 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