com.azure.messaging.servicebus.models

Enum ReceiveMode

java.lang.Object

java.lang.Enum<ReceiveMode>

com.azure.messaging.servicebus.models.ReceiveMode

All Implemented Interfaces:

Serializable, Comparable<ReceiveMode>

public enum ReceiveMode
extends Enum<ReceiveMode>

Defines the Receive modes.

Enum Constant Summary

Enum Constants

Enum Constant and Description
PEEK_LOCK In this mode, received message is not deleted from the queue or subscription, instead it is temporarily locked to the receiver, making it invisible to other receivers.
RECEIVE_AND_DELETE In this mode, received message is removed from the queue or subscription and immediately deleted.

Method Summary

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

PEEK_LOCK

public static final ReceiveMode PEEK_LOCK

In this mode, received message is not deleted from the queue or subscription, instead it is temporarily locked to the receiver, making it invisible to other receivers. Then the service waits for one of the three events

• If the receiver processes the message successfully, it calls complete and the message will be deleted.
• If the receiver decides that it can't process the message successfully, it calls abandon and the message will be unlocked and made available to other receivers.
• If the receiver wants to defer the processing of the message to a later point in time, it calls defer and the message will be deferred. A deferred can only be received by its sequence number.
• If the receiver wants to dead-letter the message, it calls deadLetter and the message will be moved to a special sub-queue called deadletter queue.
• If the receiver calls neither of these methods within a configurable period of time (by default, 60 seconds), the service assumes the receiver has failed. In this case, it behaves as if the receiver had called abandon, making the message available to other receivers

RECEIVE_AND_DELETE

public static final ReceiveMode RECEIVE_AND_DELETE

In this mode, received message is removed from the queue or subscription and immediately deleted. This option is simple, but if the receiver crashes before it finishes processing the message, the message is lost. Because it's been removed from the queue, no other receiver can access it.

Method Detail

values

public static ReceiveMode[] values()

Returns:

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

valueOf

public static ReceiveMode valueOf(String name)

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