Package dev.langchain4j.mcp.client

Record Class McpPromptMessage

java.lang.Object
java.lang.Record
dev.langchain4j.mcp.client.McpPromptMessage
public record McpPromptMessage(McpRole role, McpPromptContent content) extends Record
The 'PromptMessage' object from the MCP protocol schema. This can be directly translated to a ChatMessage object from the LangChain4j API.

  • Constructor Details

    • McpPromptMessage

      public McpPromptMessage(McpRole role, McpPromptContent content)
      Creates an instance of a McpPromptMessage record class.
      Parameters:
      role - the value for the role record component
      content - the value for the content record component

  • Method Details

    • toChatMessage

      public ChatMessage toChatMessage()
      Converts this MCP-specific PromptMessage representation to a ChatMessage object from the core LangChain4j API, if possible. This is currently not possible if the role is "assistant" AND the content is something other than text.
      Throws:
      UnsupportedOperationException - if the role is 'assistant' and the content is something other than text.

    • toString

      public final String toString()
      Returns a string representation of this record class. The representation contains the name of the class, followed by the name and value of each of the record components.
      Specified by:
      toString in class Record
      Returns:
      a string representation of this object

    • hashCode

      public final int hashCode()
      Returns a hash code value for this object. The value is derived from the hash code of each of the record components.
      Specified by:
      hashCode in class Record
      Returns:
      a hash code value for this object

    • equals

      public final boolean equals(Object o)
      Indicates whether some other object is "equal to" this one. The objects are equal if the other object is of the same class and if all the record components are equal. All components in this record class are compared with Objects::equals(Object,Object).
      Specified by:
      equals in class Record
      Parameters:
      o - the object with which to compare
      Returns:
      true if this object is the same as the o argument; false otherwise.

    • role

      public McpRole role()
      Returns the value of the role record component.
      Returns:
      the value of the role record component

    • content

      public McpPromptContent content()
      Returns the value of the content record component.
      Returns:
      the value of the content record component