Package akka.javasdk.agent

Interface SessionMessage

All Known Implementing Classes:

SessionMessage.AiMessage, SessionMessage.MultimodalToolCallResponse, SessionMessage.MultimodalUserMessage, SessionMessage.ToolCallResponse, SessionMessage.UserMessage

public sealed interface SessionMessage
permits SessionMessage.MultimodalUserMessage, SessionMessage.UserMessage, SessionMessage.AiMessage, SessionMessage.ToolCallResponse, SessionMessage.MultimodalToolCallResponse

Interface for message representation used inside the SessionMemoryEntity state.

Nested Class Summary

Nested Classes

Modifier and Type	Interface	Description
static final record	SessionMessage.AiMessage	The model's reply, with any tool calls it requested and the token usage it incurred.
static interface	SessionMessage.MessageContent
static final record	SessionMessage.MultimodalToolCallResponse	The multimodal result of a tool call, fed back to the model as input.
static final record	SessionMessage.MultimodalUserMessage	A multimodal user message, e.g.
static final record	SessionMessage.TokenUsage	Token usage for a single SessionMessage.AiMessage.
static final record	SessionMessage.ToolCallRequest	A tool call requested by the model as part of an SessionMessage.AiMessage.
static final record	SessionMessage.ToolCallResponse	The text result of a tool call, fed back to the model as input.
static final record	SessionMessage.UserMessage	A plain text user message.

Method Summary

Modifier and Type	Method	Description
String	componentId()	The component id of the agent that produced this message.
int	size()	The approximate size of this message in bytes, used to enforce memory size limits.
static int	sizeInBytes(String text)
static int	sizeInBytes(List<SessionMessage.MessageContent> contents)

Method Details

sizeInBytes

static int sizeInBytes(String text)

sizeInBytes

static int sizeInBytes(List<SessionMessage.MessageContent> contents)

size

int size()

The approximate size of this message in bytes, used to enforce memory size limits.

componentId

String componentId()

The component id of the agent that produced this message.