Class LangChain4j

java.lang.Object

com.google.adk.models.BaseLlm

com.google.adk.models.langchain4j.LangChain4j

public abstract class LangChain4j
extends BaseLlm

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static class	LangChain4j.Builder

Constructor Summary

Constructors

Constructor	Description
LangChain4j(dev.langchain4j.model.chat.ChatModel chatModel)
LangChain4j(dev.langchain4j.model.chat.ChatModel chatModel, dev.langchain4j.model.chat.StreamingChatModel streamingChatModel, String modelName)
LangChain4j(dev.langchain4j.model.chat.ChatModel chatModel, String modelName)
LangChain4j(dev.langchain4j.model.chat.StreamingChatModel streamingChatModel)
LangChain4j(dev.langchain4j.model.chat.StreamingChatModel streamingChatModel, String modelName)

Method Summary

Modifier and Type	Method	Description
static LangChain4j.Builder	builder()
abstract @Nullable dev.langchain4j.model.chat.ChatModel	chatModel()
BaseLlmConnection	connect(LlmRequest llmRequest)	Creates a live connection to the LLM.
io.reactivex.rxjava3.core.Flowable<LlmResponse>	generateContent(LlmRequest llmRequest, boolean stream)	Generates one content from the given LLM request and tools.
String	model()	Returns the name of the LLM model.
abstract String	modelName()
abstract com.fasterxml.jackson.databind.ObjectMapper	objectMapper()
abstract @Nullable dev.langchain4j.model.chat.StreamingChatModel	streamingChatModel()
abstract @Nullable dev.langchain4j.model.TokenCountEstimator	tokenCountEstimator()

Methods inherited from class Object

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

Constructor Details

LangChain4j

public LangChain4j(dev.langchain4j.model.chat.ChatModel chatModel)

LangChain4j

public LangChain4j(dev.langchain4j.model.chat.ChatModel chatModel,
 String modelName)

LangChain4j

public LangChain4j(dev.langchain4j.model.chat.StreamingChatModel streamingChatModel)

LangChain4j

public LangChain4j(dev.langchain4j.model.chat.StreamingChatModel streamingChatModel,
 String modelName)

LangChain4j

public LangChain4j(dev.langchain4j.model.chat.ChatModel chatModel,
 dev.langchain4j.model.chat.StreamingChatModel streamingChatModel,
 String modelName)

Method Details

chatModel

public abstract @Nullable dev.langchain4j.model.chat.ChatModel chatModel()

streamingChatModel

public abstract @Nullable dev.langchain4j.model.chat.StreamingChatModel streamingChatModel()

objectMapper

public abstract com.fasterxml.jackson.databind.ObjectMapper objectMapper()

modelName

public abstract String modelName()

tokenCountEstimator

public abstract @Nullable dev.langchain4j.model.TokenCountEstimator tokenCountEstimator()

model

public String model()

Description copied from class: BaseLlm

Returns the name of the LLM model.

Overrides:

model in class BaseLlm

Returns:

The name of the LLM model.

builder

public static LangChain4j.Builder builder()

generateContent

public io.reactivex.rxjava3.core.Flowable<LlmResponse> generateContent(LlmRequest llmRequest,
 boolean stream)

Description copied from class: BaseLlm

Generates one content from the given LLM request and tools.

Specified by:

generateContent in class BaseLlm

Parameters:

llmRequest - The LLM request containing the input prompt and parameters.

stream - A boolean flag indicating whether to stream the response.

Returns:

A Flowable of LlmResponses. For non-streaming calls, it will only yield one LlmResponse. For streaming calls, it may yield more than one LlmResponse, but all yielded LlmResponses should be treated as one content by merging their parts.

connect

public BaseLlmConnection connect(LlmRequest llmRequest)

Description copied from class: BaseLlm

Creates a live connection to the LLM.

Specified by:

connect in class BaseLlm