Message

All Implemented Interfaces:
```
public class Message

                    
```
An abstract class representing the structure and common functionality available on all Messages.

Nested Class Summary

Nested Classes
Modifier and Type	Class	Description

Field Summary

Fields
Modifier and Type	Field	Description
`private final Set<MessageKind>`	`validNext`
`private final MessageMetadata`	`metadata`
`private final MessageData`	`data`
`private String`	`signature`

Constructor Summary

Constructors
Constructor	Description

Enum Constant Summary

Enum Constants
Enum Constant	Description

Method Summary

Modifier and Type	Method	Description
`abstract Set<MessageKind>`	`getValidNext()`
`abstract MessageMetadata`	`getMetadata()`
`abstract MessageData`	`getData()`
`abstract String`	`getSignature()`
`abstract Unit`	`setSignature(String signature)`
`final Unit`	`sign(BearerDid did)`	Signs the Message using the specified BearerDid.
`final Unit`	`verify()`	Verifies the signature of the data.
`String`	`toString()`	Uses Json to serialize the Message as a json string.

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Constructor Detail
- Method Detail
  - getValidNext
```
 abstract Set<MessageKind> getValidNext()
```
  - getMetadata
```
 abstract MessageMetadata getMetadata()
```
  - getData
```
 abstract MessageData getData()
```
  - getSignature
```
 abstract String getSignature()
```
  - setSignature
```
 abstract Unit setSignature(String signature)
```
  - sign
```
 final Unit sign(BearerDid did)
```
    Signs the Message using the specified BearerDid.
    
    Parameters:
    
    did - The DID (Decentralized Identifier) used for signing.
  - verify
```
 final Unit verify()
```
    Verifies the signature of the data.
    This function verifies the signature using the previously set signature property. It compares the signature against a hashed payload consisting of metadata and data.
  - toString
```
 String toString()
```
    Uses Json to serialize the Message as a json string.
    
    Returns:
    
    The json string