Package org.bsc.langgraph4j.spring.ai.agent

Class ReactAgent.Builder<State extends MessagesState<org.springframework.ai.chat.messages.Message>>

java.lang.Object

org.bsc.langgraph4j.spring.ai.agent.ReactAgentBuilder<ReactAgent.Builder<State>,State>

org.bsc.langgraph4j.spring.ai.agent.ReactAgent.Builder<State>

Direct Known Subclasses:

AgentExecutor.Builder

Enclosing interface:

ReactAgent

public static class ReactAgent.Builder<State extends MessagesState<org.springframework.ai.chat.messages.Message>>
extends ReactAgentBuilder<ReactAgent.Builder<State>,State>

Class responsible for building a state graph.

Field Summary

Fields

Modifier and Type	Field	Description
protected Agent.Builder<org.springframework.ai.chat.messages.Message,State>	agentBuilder

Fields inherited from class org.bsc.langgraph4j.spring.ai.agent.ReactAgentBuilder

chatModel, conversationContextPolicy, emitStreamingOutputEnd, schema, stateSerializer, streaming, systemMessage, tools

Constructor Summary

Constructors

Constructor	Description
Builder()

Method Summary

Modifier and Type	Method	Description
ReactAgent.Builder<State>	addCallModelHook(NodeHook.WrapCall<State> wrapCall)
ReactAgent.Builder<State>	addExecuteToolsHook(EdgeHook.WrapCall<State> wrapCall)
StateGraph<State>	build(Function<ReactAgentBuilder<?,?>,ReactAgent.ChatService> chatServiceFactory)	Builds and returns a StateGraph with the specified configuration.

Methods inherited from class org.bsc.langgraph4j.spring.ai.agent.ReactAgentBuilder

build, chatModel, chatModel, chatModel, conversationContextPolicy, defaultSystem, emitStreamingEnd, result, schema, skills, skills, stateSerializer, streaming, systemMessage, tool, tools, tools, tools, toolsFromObject

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Details

agentBuilder

protected Agent.Builder<org.springframework.ai.chat.messages.Message,State extends MessagesState<org.springframework.ai.chat.messages.Message>> agentBuilder

Constructor Details

Builder

public Builder()

Method Details

addCallModelHook

public ReactAgent.Builder<State> addCallModelHook(NodeHook.WrapCall<State> wrapCall)

addExecuteToolsHook

public ReactAgent.Builder<State> addExecuteToolsHook(EdgeHook.WrapCall<State> wrapCall)

build

public StateGraph<State> build(Function<ReactAgentBuilder<?,?>,ReactAgent.ChatService> chatServiceFactory)
                        throws GraphStateException

Builds and returns a StateGraph with the specified configuration. Initializes the stateSerializer if it's null. Then, constructs a new StateGraph object using the provided schema and serializer, adds an initial edge from the START node to "agent", and then proceeds to add nodes for "agent" and "action". It also sets up conditional edges from the "agent" node based on whether or not to continue.

Specified by:

build in class ReactAgentBuilder<ReactAgent.Builder<State extends MessagesState<org.springframework.ai.chat.messages.Message>>,State extends MessagesState<org.springframework.ai.chat.messages.Message>>

Returns:

A configured StateGraph object.

Throws:

GraphStateException - If there is an issue with building the graph state.