Chat

public final class Chat

Representation of a multi-turn interaction with a model.

Handles the capturing and storage of the communication with the model, providing methods for further interaction.

Note: This object is not thread-safe, and calling sendMessage multiple times without waiting for a response will throw an InvalidStateException.

Summary

Public fields
`final @NonNull List<@NonNull Content>`	`history` The previous interactions with the model

Public constructors
`Chat(@NonNull GenerativeModel model, @NonNull List<@NonNull Content> history)`

Public methods
`final @NonNull GenerateContentResponse`	`sendMessage(@NonNull Bitmap prompt)` Generates a response from the backend with the provided image prompt.
`final @NonNull GenerateContentResponse`	`sendMessage(@NonNull Content prompt)` Generates a response from the backend with the provided `Content`, and any previous ones sent/returned from this chat.
`final @NonNull GenerateContentResponse`	`sendMessage(@NonNull String prompt)` Generates a response from the backend with the provided text prompt.
`final @NonNull Flow<@NonNull GenerateContentResponse>`	`sendMessageStream(@NonNull Bitmap prompt)` Generates a streaming response from the backend with the provided image prompt.
`final @NonNull Flow<@NonNull GenerateContentResponse>`	`sendMessageStream(@NonNull Content prompt)` Generates a streaming response from the backend with the provided `Content`.
`final @NonNull Flow<@NonNull GenerateContentResponse>`	`sendMessageStream(@NonNull String prompt)` Generates a streaming response from the backend with the provided text prompt.

Public fields

history

public final @NonNull List<@NonNull Content> history

The previous interactions with the model

Public constructors

Chat

public Chat(@NonNull GenerativeModel model, @NonNull List<@NonNull Content> history)

Parameters
`@NonNull GenerativeModel model`	The model to use for the interaction

Public methods

sendMessage

public final @NonNull GenerateContentResponse sendMessage(@NonNull Bitmap prompt)

Generates a response from the backend with the provided image prompt.

Parameters
`@NonNull Bitmap prompt`	The image to be converted into a single piece of `Content` to send to the model.

Throws
`com.google.firebase.vertexai.type.InvalidStateException com.google.firebase.vertexai.type.InvalidStateException`	if the `Chat` instance has an active request.

sendMessage

public final @NonNull GenerateContentResponse sendMessage(@NonNull Content prompt)

Generates a response from the backend with the provided Content, and any previous ones sent/returned from this chat.

Parameters
`@NonNull Content prompt`	A `Content` to send to the model.

Throws
`com.google.firebase.vertexai.type.InvalidStateException com.google.firebase.vertexai.type.InvalidStateException`	if the prompt is not coming from the 'user' role
`com.google.firebase.vertexai.type.InvalidStateException com.google.firebase.vertexai.type.InvalidStateException`	if the `Chat` instance has an active request.

sendMessage

public final @NonNull GenerateContentResponse sendMessage(@NonNull String prompt)

Generates a response from the backend with the provided text prompt.

Parameters
`@NonNull String prompt`	The text to be converted into a single piece of `Content` to send to the model.

Throws
`com.google.firebase.vertexai.type.InvalidStateException com.google.firebase.vertexai.type.InvalidStateException`	if the `Chat` instance has an active request.

sendMessageStream

public final @NonNull Flow<@NonNull GenerateContentResponse> sendMessageStream(@NonNull Bitmap prompt)

Generates a streaming response from the backend with the provided image prompt.

Parameters
`@NonNull Bitmap prompt`	A `Content` to send to the model.

Returns
`@NonNull Flow<@NonNull GenerateContentResponse>`	A `Flow` which will emit responses as they are returned from the model.

Throws
`com.google.firebase.vertexai.type.InvalidStateException com.google.firebase.vertexai.type.InvalidStateException`	if the `Chat` instance has an active request.

sendMessageStream

public final @NonNull Flow<@NonNull GenerateContentResponse> sendMessageStream(@NonNull Content prompt)

Generates a streaming response from the backend with the provided Content.

Parameters
`@NonNull Content prompt`	A `Content` to send to the model.

Returns
`@NonNull Flow<@NonNull GenerateContentResponse>`	A `Flow` which will emit responses as they are returned from the model.

Throws
`com.google.firebase.vertexai.type.InvalidStateException com.google.firebase.vertexai.type.InvalidStateException`	if the prompt is not coming from the 'user' role
`com.google.firebase.vertexai.type.InvalidStateException com.google.firebase.vertexai.type.InvalidStateException`	if the `Chat` instance has an active request.

sendMessageStream

public final @NonNull Flow<@NonNull GenerateContentResponse> sendMessageStream(@NonNull String prompt)

Generates a streaming response from the backend with the provided text prompt.

Parameters
`@NonNull String prompt`	a text to be converted into a single piece of `Content` to send to the model

Returns
`@NonNull Flow<@NonNull GenerateContentResponse>`	A `Flow` which will emit responses as they are returned from the model.

Throws
`com.google.firebase.vertexai.type.InvalidStateException com.google.firebase.vertexai.type.InvalidStateException`	if the `Chat` instance has an active request.