Class DecisionRequest

java.lang.Object

dev.langchain4j.model.decision.request.DecisionRequest

@Experimental
public final class DecisionRequest
extends Object

A request to a DecisionModel: the input() to evaluate and the named questions() to answer about it.

The input is one of:

• plain text: DecisionRequest.Builder.input(String);
• named fields, for example a support ticket together with the customer's plan: DecisionRequest.Builder.inputFields(Map);
• a list of contents, for example text and images: DecisionRequest.Builder.inputContents(List);
• a conversation, for example a chat between a user and an AI assistant: DecisionRequest.Builder.inputMessages(List).

Not every decision model supports every kind of input: a model that does not support it throws an UnsupportedFeatureException. Every question is answered against the same input, and each answer is returned under the name of its question:

DecisionRequest request = DecisionRequest.builder()
        .inputFields(Map.of("ticket", "My payouts have been failing for 3 days", "plan", "enterprise"))
        .question("team", ChoiceQuestion.builder()
                .text("Which team should handle this ticket?")
                .option("billing", "Payments, invoices, refunds")
                .option("support", "Problems using the product")
                .build())
        .question("urgent", YesNoQuestion.builder()
                .text("Does this need attention today?")
                .build())
        .build();

Since:

1.21.0

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static final class	DecisionRequest.Builder

Method Summary

Modifier and Type	Method	Description
static DecisionRequest.Builder	builder()
boolean	equals(Object o)
int	hashCode()
DecisionInput	input()	The input to evaluate.
String	modelName()
DecisionRequestParameters	parameters()
Map<String,Question>	questions()	The questions to answer, keyed by name, in the order they were added.
DecisionRequest.Builder	toBuilder()	Creates a builder initialized with the input, the questions and the parameters of this request.
String	toString()

Methods inherited from class Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Method Details

input

public DecisionInput input()

The input to evaluate. Its type tells which implementation it is.

questions

public Map<String,Question> questions()

The questions to answer, keyed by name, in the order they were added.

parameters

public DecisionRequestParameters parameters()

modelName

public String modelName()

builder

public static DecisionRequest.Builder builder()

toBuilder

public DecisionRequest.Builder toBuilder()

Creates a builder initialized with the input, the questions and the parameters of this request.

equals

public boolean equals(Object o)

Overrides:

equals in class Object

hashCode

public int hashCode()

Overrides:

hashCode in class Object

toString

public String toString()

Overrides:

toString in class Object