BaseNode#

pydantic model llama_index.core.schema.BaseNode#

Base node Object.

Generic abstract interface for retrievable nodes

Show JSON schema

{
   "title": "BaseNode",
   "description": "Base node Object.\n\nGeneric abstract interface for retrievable nodes",
   "type": "object",
   "properties": {
      "id_": {
         "title": "Id ",
         "description": "Unique ID of the node.",
         "type": "string"
      },
      "embedding": {
         "title": "Embedding",
         "description": "Embedding of the node.",
         "type": "array",
         "items": {
            "type": "number"
         }
      },
      "extra_info": {
         "title": "Extra Info",
         "description": "A flat dictionary of metadata fields",
         "type": "object"
      },
      "excluded_embed_metadata_keys": {
         "title": "Excluded Embed Metadata Keys",
         "description": "Metadata keys that are excluded from text for the embed model.",
         "type": "array",
         "items": {
            "type": "string"
         }
      },
      "excluded_llm_metadata_keys": {
         "title": "Excluded Llm Metadata Keys",
         "description": "Metadata keys that are excluded from text for the LLM.",
         "type": "array",
         "items": {
            "type": "string"
         }
      },
      "relationships": {
         "title": "Relationships",
         "description": "A mapping of relationships to other node information.",
         "type": "object",
         "additionalProperties": {
            "anyOf": [
               {
                  "$ref": "#/definitions/RelatedNodeInfo"
               },
               {
                  "type": "array",
                  "items": {
                     "$ref": "#/definitions/RelatedNodeInfo"
                  }
               }
            ]
         }
      },
      "class_name": {
         "title": "Class Name",
         "type": "string",
         "default": "base_component"
      }
   },
   "definitions": {
      "ObjectType": {
         "title": "ObjectType",
         "description": "An enumeration.",
         "enum": [
            "1",
            "2",
            "3",
            "4"
         ],
         "type": "string"
      },
      "RelatedNodeInfo": {
         "title": "RelatedNodeInfo",
         "description": "Base component object to capture class names.",
         "type": "object",
         "properties": {
            "node_id": {
               "title": "Node Id",
               "type": "string"
            },
            "node_type": {
               "$ref": "#/definitions/ObjectType"
            },
            "metadata": {
               "title": "Metadata",
               "type": "object"
            },
            "hash": {
               "title": "Hash",
               "type": "string"
            },
            "class_name": {
               "title": "Class Name",
               "type": "string",
               "default": "RelatedNodeInfo"
            }
         },
         "required": [
            "node_id"
         ]
      }
   }
}

Config

allow_population_by_field_name: bool = True
validate_assignment: bool = True

Fields

embedding (Optional[List[float]])
excluded_embed_metadata_keys (List[str])
excluded_llm_metadata_keys (List[str])
id_ (str)
metadata (Dict[str, Any])
relationships (Dict[llama_index.core.schema.NodeRelationship, Union[llama_index.core.schema.RelatedNodeInfo, List[llama_index.core.schema.RelatedNodeInfo]]])

field embedding: Optional[List[float]] = None#

” metadata fields - injected as part of the text shown to LLMs as context - injected as part of the text for generating embeddings - used by vector DBs for metadata filtering

Embedding of the node.

field excluded_embed_metadata_keys: List[str] [Optional]#: Metadata keys that are excluded from text for the embed model.

field excluded_llm_metadata_keys: List[str] [Optional]#: Metadata keys that are excluded from text for the LLM.

field id_: str [Optional]#: Unique ID of the node.

field metadata: Dict[str, Any] [Optional] (alias 'extra_info')#: A flat dictionary of metadata fields

field relationships: Dict[NodeRelationship, Union[RelatedNodeInfo, List[RelatedNodeInfo]]] [Optional]#: A mapping of relationships to other node information.

as_related_node_info() → RelatedNodeInfo#: Get node as RelatedNodeInfo.

abstract get_content(metadata_mode: MetadataMode = MetadataMode.ALL) → str#: Get object content.

get_embedding() → List[float]#

Get embedding.

Errors if embedding is None.

abstract get_metadata_str(mode: MetadataMode = MetadataMode.ALL) → str#: Metadata string.

abstract classmethod get_type() → str#: Get Object type.

abstract set_content(value: Any) → None#: Set the content of the node.

property child_nodes: Optional[List[RelatedNodeInfo]]#: Child nodes.

property extra_info: Dict[str, Any]#

Extra info.

Type: TODO
Type: DEPRECATED

abstract property hash: str#: Get hash of node.

property next_node: Optional[RelatedNodeInfo]#: Next node.

property node_id: str#

property parent_node: Optional[RelatedNodeInfo]#: Parent node.

property prev_node: Optional[RelatedNodeInfo]#: Prev node.

property ref_doc_id: Optional[str]#

Get ref doc id.

Type: Deprecated

property source_node: Optional[RelatedNodeInfo]#

Source object node.

Extracted from the relationships field.