Visitor

class langchain_core.structured_query.Visitor

Defines interface for IR translation using a visitor pattern.

Attributes

allowed_comparators	Allowed comparators for the visitor.
allowed_operators	Allowed operators for the visitor.

Methods

__init__()
visit_comparison(comparison)	Translate a Comparison.
visit_operation(operation)	Translate an Operation.
visit_structured_query(structured_query)	Translate a StructuredQuery.

__init__()

abstract visit_comparison(comparison: Comparison) → Any

Translate a Comparison.

Parameters:

comparison (Comparison) – Comparison to translate.

Return type:

Any

abstract visit_operation(operation: Operation) → Any

Translate an Operation.

Parameters:

operation (Operation) – Operation to translate.

Return type:

Any

abstract visit_structured_query(structured_query: StructuredQuery) → Any

Translate a StructuredQuery.

Parameters:

structured_query (StructuredQuery) – StructuredQuery to translate.

Return type:

Any