CloudEventMetadata (SmallRye Reactive Messaging 3.4.0 API)

Type Parameters:

T - the data type

All Known Subinterfaces:

IncomingCloudEventMetadata<T>, IncomingKafkaCloudEventMetadata<K,T>, OutgoingCloudEventMetadata<T>

All Known Implementing Classes:

BaseCloudEventMetadata, DefaultIncomingCloudEventMetadata, DefaultIncomingKafkaCloudEventMetadata, DefaultOutgoingCloudEventMetadata
```
public interface CloudEventMetadata<T>
```
Represents Cloud Event metadata See https://github.com/cloudevents/spec/blob/v1.0/spec.md.

Field Summary

Fields
Modifier and Type	Field and Description
`static String`	`CE_ATTRIBUTE_DATA_CONTENT_TYPE`
`static String`	`CE_ATTRIBUTE_DATA_SCHEMA`
`static String`	`CE_ATTRIBUTE_ID`
`static String`	`CE_ATTRIBUTE_SOURCE`
`static String`	`CE_ATTRIBUTE_SPEC_VERSION`
`static String`	`CE_ATTRIBUTE_SUBJECT`
`static String`	`CE_ATTRIBUTE_TIME`
`static String`	`CE_ATTRIBUTE_TYPE`
`static String`	`CE_VERSION_1_0`

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method and Description
`T`	`getData()` The event payload.
`Optional<String>`	`getDataContentType()` Content type of data value.
`Optional<URI>`	`getDataSchema()` Identifies the schema that data adheres to.
`<A> Optional<A>`	`getExtension(String name)` A CloudEvent may include any number of additional context attributes with distinct names, known as "extension attributes".
`Map<String,Object>`	`getExtensions()` A CloudEvent may include any number of additional context attributes with distinct names, known as "extension attributes".
`String`	`getId()` Identifies the event.
`URI`	`getSource()` Identifies the context in which an event happened.
`String`	`getSpecVersion()` The version of the CloudEvents specification which the event uses.
`Optional<String>`	`getSubject()` This describes the subject of the event in the context of the event producer (identified by source).
`Optional<ZonedDateTime>`	`getTimeStamp()` Timestamp of when the occurrence happened.
`String`	`getType()` This attribute contains a value describing the type of event related to the originating occurrence.

- Field Detail
  - CE_ATTRIBUTE_SPEC_VERSION
```
static final String CE_ATTRIBUTE_SPEC_VERSION
```
    See Also:
    
    Constant Field Values
  - CE_ATTRIBUTE_ID
```
static final String CE_ATTRIBUTE_ID
```
    See Also:
    
    Constant Field Values
  - CE_ATTRIBUTE_SOURCE
```
static final String CE_ATTRIBUTE_SOURCE
```
    See Also:
    
    Constant Field Values
  - CE_ATTRIBUTE_TYPE
```
static final String CE_ATTRIBUTE_TYPE
```
    See Also:
    
    Constant Field Values
  - CE_ATTRIBUTE_DATA_CONTENT_TYPE
```
static final String CE_ATTRIBUTE_DATA_CONTENT_TYPE
```
    See Also:
    
    Constant Field Values
  - CE_ATTRIBUTE_DATA_SCHEMA
```
static final String CE_ATTRIBUTE_DATA_SCHEMA
```
    See Also:
    
    Constant Field Values
  - CE_ATTRIBUTE_SUBJECT
```
static final String CE_ATTRIBUTE_SUBJECT
```
    See Also:
    
    Constant Field Values
  - CE_ATTRIBUTE_TIME
```
static final String CE_ATTRIBUTE_TIME
```
    See Also:
    
    Constant Field Values
  - CE_VERSION_1_0
```
static final String CE_VERSION_1_0
```
    See Also:
    
    Constant Field Values
- Method Detail
  - getId
```
String getId()
```
    Identifies the event. Mandatory attribute.
    
    Returns:
    
    the id, cannot be null
  - getSource
```
URI getSource()
```
    Identifies the context in which an event happened. Mandatory attribute.
    
    Returns:
    
    the source, cannot be null
  - getSpecVersion
```
String getSpecVersion()
```
    The version of the CloudEvents specification which the event uses. Mandatory attribute.
    
    Returns:
    
    the specification version
  - getType
```
String getType()
```
    This attribute contains a value describing the type of event related to the originating occurrence. Mandatory attribute.
    
    Returns:
    
    the type
  - getDataContentType
```
Optional<String> getDataContentType()
```
    Content type of data value.
    
    Returns:
    
    the content type if any, empty if none.
  - getDataSchema
```
Optional<URI> getDataSchema()
```
    Identifies the schema that data adheres to.
    
    Returns:
    
    the schema URI if any, empty if none.
  - getSubject
```
Optional<String> getSubject()
```
    This describes the subject of the event in the context of the event producer (identified by source).
    
    Returns:
    
    the subject if any, empty if none
  - getTimeStamp
```
Optional<ZonedDateTime> getTimeStamp()
```
    Timestamp of when the occurrence happened.
    
    Returns:
    
    the timestamp if any, empty if none
  - getExtension
```
<A> Optional<A> getExtension(String name)
```
    A CloudEvent may include any number of additional context attributes with distinct names, known as "extension attributes". This method allows retrieving these attributes.
    
    Parameters:
    
    name - the name of the attribute, must not be null
    
    Returns:
    
    the value of the attribute, empty if not present.
  - getExtensions
```
Map<String,Object> getExtensions()
```
    A CloudEvent may include any number of additional context attributes with distinct names, known as "extension attributes". This method allows retrieving these attributes.
    
    Returns:
    
    the map of extension attributes, potentially empty.
  - getData
```
T getData()
```
    The event payload. It is the owner message payload.
    
    Returns:
    
    the payload, can be null

Interface CloudEventMetadata<T>

Field Summary

Method Summary

Field Detail

CE_ATTRIBUTE_SPEC_VERSION

CE_ATTRIBUTE_ID

CE_ATTRIBUTE_SOURCE

CE_ATTRIBUTE_TYPE

CE_ATTRIBUTE_DATA_CONTENT_TYPE

CE_ATTRIBUTE_DATA_SCHEMA

CE_ATTRIBUTE_SUBJECT

CE_ATTRIBUTE_TIME

CE_VERSION_1_0

Method Detail

getId

getSource

getSpecVersion

getType

getDataContentType

getDataSchema

getSubject

getTimeStamp

getExtension

getExtensions

getData