# Class: SelectValueCollector

Defined in: packages/core/src/transformers/SelectValueCollector.ts:13

A visitor that collects all SelectItem instances from a SQL query structure. This visitor scans through select clauses and collects all the SelectItem objects. It can also resolve wildcard selectors (table.* or *) using a provided table column resolver.

Implements

• SqlComponentVisitor<void&gt;

Constructors

Constructor

new SelectValueCollector(tableColumnResolver, initialCommonTables): SelectValueCollector

Defined in: packages/core/src/transformers/SelectValueCollector.ts:23

Parameters

tableColumnResolver

null | TableColumnResolver

initialCommonTables

null | CommonTable[]

Returns

SelectValueCollector

Properties

initialCommonTables

initialCommonTables: null | CommonTable[]

Defined in: packages/core/src/transformers/SelectValueCollector.ts:21

Methods

getValues()

getValues(): object[]

Defined in: packages/core/src/transformers/SelectValueCollector.ts:41

Get all collected SelectItems as an array of objects with name and value properties

Returns

object[]

An array of objects with name (string) and value (ValueComponent) properties

---

collect()

collect(arg): object[]

Defined in: packages/core/src/transformers/SelectValueCollector.ts:58

Parameters

arg

SqlComponent

Returns

object[]

---

visit()

visit(arg): void

Defined in: packages/core/src/transformers/SelectValueCollector.ts:70

Main entry point for the visitor pattern. Implements the shallow visit pattern to distinguish between root and recursive visits.

Parameters

arg

SqlComponent

Returns

void

Implementation of

SqlComponentVisitor.visit