Package dev.langchain4j.data.message

Class SystemMessage

java.lang.Object

dev.langchain4j.data.message.SystemMessage

All Implemented Interfaces:

ChatMessage

public class SystemMessage
extends Object
implements ChatMessage

Represents a system message, typically defined by a developer. This type of message usually provides instructions regarding the AI's actions, such as its behavior or response style.

Constructor Summary

Constructors

Constructor	Description
SystemMessage(String text)	Creates a new system message.

Method Summary

Modifier and Type	Method	Description
boolean	equals(Object o)
static List<SystemMessage>	findAll(List<ChatMessage> messages)
static Optional<SystemMessage>	findFirst(List<ChatMessage> messages)
static Optional<SystemMessage>	findLast(List<ChatMessage> messages)
static SystemMessage	from(String text)	Creates a new system message.
int	hashCode()
static SystemMessage	systemMessage(String text)	Creates a new system message.
String	text()	Returns the message text.
String	toString()
ChatMessageType	type()	The type of the message.

Methods inherited from class java.lang.Object

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

Constructor Details

SystemMessage

public SystemMessage(String text)

Creates a new system message.

Parameters:

text - the message text.

Method Details

text

public String text()

Returns the message text.

Returns:

the message text.

type

public ChatMessageType type()

Description copied from interface: ChatMessage

The type of the message.

Specified by:

type in interface ChatMessage

Returns:

the type of the message

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

from

public static SystemMessage from(String text)

Creates a new system message.

Parameters:

text - the message text.

Returns:

the system message.

systemMessage

public static SystemMessage systemMessage(String text)

Creates a new system message.

Parameters:

text - the message text.

Returns:

the system message.

findFirst

public static Optional<SystemMessage> findFirst(List<ChatMessage> messages)

findLast

public static Optional<SystemMessage> findLast(List<ChatMessage> messages)

findAll

public static List<SystemMessage> findAll(List<ChatMessage> messages)