Package com.hivemq.extension.sdk.api.services.publish

Interface Publish

All Known Subinterfaces:

RetainedPublish

@DoNotImplement
public interface Publish

Represents a PUBLISH.

Contains all values of an MQTT 5 PUBLISH, but will also used to represent MQTT 3 publishes.

Since:

4.0.0, CE 2019.1

Method Summary

Modifier and Type	Method	Description
static PublishBuilder	builder()	Deprecated. Use Builders.publish() instead
@NotNull Optional<String>	getContentType()	If this property is present, this is the content type.
@NotNull Optional<@Immutable ByteBuffer>	getCorrelationData()	If this property is present, this is the correlation data.
@NotNull Optional<Long>	getMessageExpiryInterval()	If this property is present, this is the message expiry interval.
@NotNull Optional<@Immutable ByteBuffer>	getPayload()	If this property is present, this is the payload.
@NotNull Optional<PayloadFormatIndicator>	getPayloadFormatIndicator()	If this property is present, this is the payload format indicator.
@NotNull Qos	getQos()	The quality of service level of the publish.
@NotNull Optional<String>	getResponseTopic()	If this property is present, this is the response topic.
boolean	getRetain()	If true this message is a retained message, for false this is just a normal publish.
@NotNull String	getTopic()	The topic filter the message is published to.
@Immutable @NotNull UserProperties	getUserProperties()	The UserProperties of the PUBLISH.

Method Details

builder

@Deprecated(since="4.4.0") static PublishBuilder builder()

Deprecated.

Use Builders.publish() instead

Returns:

A new PublishBuilder to create a Publish.

Since:

4.0.0, CE 2019.1

getQos

@NotNull @NotNull Qos getQos()

The quality of service level of the publish.

Returns:

The qos.

Since:

4.0.0, CE 2019.1

getRetain

boolean getRetain()

If true this message is a retained message, for false this is just a normal publish.

Returns:

The retain flag.

Since:

4.0.0, CE 2019.1

getTopic

@NotNull @NotNull String getTopic()

The topic filter the message is published to.

Returns:

The topic.

Since:

4.0.0, CE 2019.1

getPayloadFormatIndicator

@NotNull @NotNull Optional<PayloadFormatIndicator> getPayloadFormatIndicator()

If this property is present, this is the payload format indicator.

Returns:

An Optional that contains the payload format indicator if present.

Since:

4.0.0, CE 2019.1

getMessageExpiryInterval

@NotNull @NotNull Optional<Long> getMessageExpiryInterval()

If this property is present, this is the message expiry interval.

Returns:

An Optional that contains the message expiry interval if present.

Since:

4.0.0, CE 2019.1

getResponseTopic

@NotNull @NotNull Optional<String> getResponseTopic()

If this property is present, this is the response topic.

Returns:

An Optional that contains the response topic if present.

Since:

4.0.0, CE 2019.1

getCorrelationData

@NotNull @NotNull Optional<@Immutable ByteBuffer> getCorrelationData()

If this property is present, this is the correlation data.

The ByteBuffer returned by this method is read only and will throw a ReadOnlyBufferException if handled incorrectly.

Returns:

An Optional that contains the correlation data if present.

Since:

4.0.0, CE 2019.1

getContentType

@NotNull @NotNull Optional<String> getContentType()

If this property is present, this is the content type.

Returns:

An Optional that contains the content type if present.

Since:

4.0.0, CE 2019.1

getPayload

@NotNull @NotNull Optional<@Immutable ByteBuffer> getPayload()

If this property is present, this is the payload.

The ByteBuffer returned by this method is read only and will throw a ReadOnlyBufferException if handled incorrectly.

Returns:

An Optional that contains the payload if present.

Since:

4.0.0, CE 2019.1

getUserProperties

@Immutable @NotNull @Immutable @NotNull UserProperties getUserProperties()

The UserProperties of the PUBLISH.

Returns:

The user properties.

Since:

4.0.0, CE 2019.1