Module com.darkcollective.relix.lang.ast

Package com.darkcollective.relix.lang.ast.source

Interface ColumnBinding

All Known Implementing Classes:

ExtractPathBinding, HeaderBinding, PathParamBinding, QueryParamBinding

public sealed interface ColumnBinding
permits QueryParamBinding, PathParamBinding, HeaderBinding, ExtractPathBinding

Sealed interface describing how a column maps to the underlying transport.

For ColumnDirection.IN columns:

• QueryParamBinding — the column value is appended as a URL query parameter: as query("q") → ?q=value
• PathParamBinding — the column value is substituted into the URL path template: as path("id") → /items/{id}
• HeaderBinding — the column value is sent as a request header: as header("X-City")

For ColumnDirection.OUT columns:

• ExtractPathBinding — the column value is extracted from the response body using a JSONPath expression: at "$.main.temp"

The binding is optional; an OUT column without a binding is mapped by matching the column name against top-level response fields.