Class: AttributeRenamer

Defined in: packages/core/src/visitors/attribute-renamer.ts:20

Renames attributes in the plan.

Extended by

• XQueryAttributeRenamer

Implements

• PlanVisitor<void, Translations>

Constructors

Constructor

new AttributeRenamer(vmap, db): AttributeRenamer

Defined in: packages/core/src/visitors/attribute-renamer.ts:26

Parameters

Parameter	Type	Description
vmap	Record<string, PlanVisitor<void, Translations>>	Per-language visitor map used for recursive descent.
db	DortDBAsFriend	Database instance providing access to the language manager.

Returns

AttributeRenamer

Properties

db

protected db: DortDBAsFriend

Defined in: packages/core/src/visitors/attribute-renamer.ts:30

Database instance providing access to the language manager.

---

tdepsVmap

protected tdepsVmap: Record<string, TransitiveDependencies>

Defined in: packages/core/src/visitors/attribute-renamer.ts:22

Per-language TransitiveDependencies visitor map, used to invalidate the cache after renaming.

---

varMappers

protected varMappers: Record<string, VariableMapper>

Defined in: packages/core/src/visitors/attribute-renamer.ts:24

Per-language VariableMapper map, used for variable mapping.

---

vmap

protected vmap: Record<string, PlanVisitor<void, Translations>>

Defined in: packages/core/src/visitors/attribute-renamer.ts:28

Per-language visitor map used for recursive descent.

Methods

prepareTranslations()

protected prepareTranslations(ctx, renames): Translations

Defined in: packages/core/src/visitors/attribute-renamer.ts:76

Prepares variable map for renaming by reversing the translation map from the variable-mapper context.

Parameters

Parameter	Type
ctx	VariableMapperCtx
renames	RenameMap

Returns

Translations

---

prepareVarMapCtx()

protected prepareVarMapCtx(renames): VariableMapperCtx

Defined in: packages/core/src/visitors/attribute-renamer.ts:54

First, the whole plan is mapped to numeric indexes. This method prepares the context for that mapping.

Parameters

Parameter	Type
renames	RenameMap

Returns

VariableMapperCtx

---

processArray()

protected processArray(array, translations, containingOp, updateFn?): void

Defined in: packages/core/src/visitors/attribute-renamer.ts:116

Iterates array in place, replacing each ASTIdentifier element with its renamed version.

Parameters

Parameter	Type	Description
array	OpOrId[]	-
translations	Translations	-
containingOp	PlanOperator	-
updateFn?	(newId, i) => void	Optional callback used instead of direct array assignment when the renamed identifier lives in a wrapper object (e.g. a projection pair).

Returns

void

---

processItem()

protected processItem<Key, Obj>(obj, key, translations, containingOp): void

Defined in: packages/core/src/visitors/attribute-renamer.ts:142

Renames a single property obj[key] in place when it is an ASTIdentifier; otherwise recurses into the operator.

Type Parameters

Type Parameter
Key extends string
Obj extends Record<Key, OpOrId>

Parameters

Parameter	Type
obj	Obj
key	Key
translations	Translations
containingOp	PlanOperator

Returns

void

---

rename()

rename(plan, renames): void

Defined in: packages/core/src/visitors/attribute-renamer.ts:40

Applies translations to plan in place and invalidates the transitive-dependency cache for the entire subtree rooted at plan.

Parameters

Parameter	Type
plan	PlanOperator
renames	RenameMap

Returns

void

---

renameIdentifier()

protected renameIdentifier(id, varmap): ASTIdentifier

Defined in: packages/core/src/visitors/attribute-renamer.ts:99

Rename a single identifier, keeping references to aggregates

Parameters

Parameter	Type
id	ASTIdentifier
varmap	VariableMap

Returns

ASTIdentifier

---

visitAggregate()

visitAggregate(operator, translations): void

Defined in: packages/core/src/visitors/attribute-renamer.ts:337

Parameters

Parameter	Type
operator	AggregateCall
translations	Translations

Returns

void

Implementation of

PlanVisitor.visitAggregate

---

visitBidirectionalRecursion()

visitBidirectionalRecursion(operator, translations): void

Defined in: packages/core/src/visitors/attribute-renamer.ts:378

Parameters

Parameter	Type
operator	BidirectionalRecursion
translations	Translations

Returns

void

Implementation of

PlanVisitor.visitBidirectionalRecursion

---

visitCalculation()

visitCalculation(operator, translations): void

Defined in: packages/core/src/visitors/attribute-renamer.ts:207

Parameters

Parameter	Type
operator	Calculation
translations	Translations

Returns

void

Implementation of

PlanVisitor.visitCalculation

---

visitCartesianProduct()

visitCartesianProduct(operator, translations): void

Defined in: packages/core/src/visitors/attribute-renamer.ts:247

Parameters

Parameter	Type
operator	CartesianProduct
translations	Translations

Returns

void

Implementation of

PlanVisitor.visitCartesianProduct

---

visitConditional()

visitConditional(operator, translations): void

Defined in: packages/core/src/visitors/attribute-renamer.ts:216

Parameters

Parameter	Type
operator	Conditional
translations	Translations

Returns

void

Implementation of

PlanVisitor.visitConditional

---

visitDifference()

visitDifference(operator, translations): void

Defined in: packages/core/src/visitors/attribute-renamer.ts:324

Parameters

Parameter	Type
operator	Difference
translations	Translations

Returns

void

Implementation of

PlanVisitor.visitDifference

---

visitDistinct()

visitDistinct(operator, translations): void

Defined in: packages/core/src/visitors/attribute-renamer.ts:327

Parameters

Parameter	Type
operator	Distinct
translations	Translations

Returns

void

Implementation of

PlanVisitor.visitDistinct

---

visitFnCall()

visitFnCall(operator, translations): void

Defined in: packages/core/src/visitors/attribute-renamer.ts:192

Parameters

Parameter	Type
operator	FnCall
translations	Translations

Returns

void

Implementation of

PlanVisitor.visitFnCall

---

visitGroupBy()

visitGroupBy(operator, translations): void

Defined in: packages/core/src/visitors/attribute-renamer.ts:292

Parameters

Parameter	Type
operator	GroupBy
translations	Translations

Returns

void

Implementation of

PlanVisitor.visitGroupBy

---

visitIndexedRecursion()

visitIndexedRecursion(operator, translations): void

Defined in: packages/core/src/visitors/attribute-renamer.ts:370

Parameters

Parameter	Type
operator	IndexedRecursion
translations	Translations

Returns

void

Implementation of

PlanVisitor.visitIndexedRecursion

---

visitIndexScan()

visitIndexScan(operator, translations): void

Defined in: packages/core/src/visitors/attribute-renamer.ts:362

Parameters

Parameter	Type
operator	IndexScan
translations	Translations

Returns

void

Implementation of

PlanVisitor.visitIndexScan

---

visitIntersection()

visitIntersection(operator, translations): void

Defined in: packages/core/src/visitors/attribute-renamer.ts:318

Parameters

Parameter	Type
operator	Intersection
translations	Translations

Returns

void

Implementation of

PlanVisitor.visitIntersection

---

visitItemFnSource()

visitItemFnSource(operator, translations): void

Defined in: packages/core/src/visitors/attribute-renamer.ts:347

Parameters

Parameter	Type
operator	ItemFnSource
translations	Translations

Returns

void

Implementation of

PlanVisitor.visitItemFnSource

---

visitItemSource()

visitItemSource(operator, translations): void

Defined in: packages/core/src/visitors/attribute-renamer.ts:188

Parameters

Parameter	Type
operator	ItemSource
translations	Translations

Returns

void

Implementation of

PlanVisitor.visitItemSource

---

visitJoin()

visitJoin(operator, translations): void

Defined in: packages/core/src/visitors/attribute-renamer.ts:254

Parameters

Parameter	Type
operator	Join
translations	Translations

Returns

void

Implementation of

PlanVisitor.visitJoin

---

visitLimit()

visitLimit(operator, translations): void

Defined in: packages/core/src/visitors/attribute-renamer.ts:308

Parameters

Parameter	Type
operator	Limit
translations	Translations

Returns

void

Implementation of

PlanVisitor.visitLimit

---

visitLiteral()

visitLiteral(operator, translations): void

Defined in: packages/core/src/visitors/attribute-renamer.ts:204

Parameters

Parameter	Type
operator	Literal
translations	Translations

Returns

void

Implementation of

PlanVisitor.visitLiteral

---

visitMapFromItem()

visitMapFromItem(operator, translations): void

Defined in: packages/core/src/visitors/attribute-renamer.ts:269

Parameters

Parameter	Type
operator	MapFromItem
translations	Translations

Returns

void

Implementation of

PlanVisitor.visitMapFromItem

---

visitMapToItem()

visitMapToItem(operator, translations): void

Defined in: packages/core/src/visitors/attribute-renamer.ts:265

Parameters

Parameter	Type
operator	MapToItem
translations	Translations

Returns

void

Implementation of

PlanVisitor.visitMapToItem

---

visitNullSource()

visitNullSource(operator, translations): void

Defined in: packages/core/src/visitors/attribute-renamer.ts:333

Parameters

Parameter	Type
operator	NullSource
translations	Translations

Returns

void

Implementation of

PlanVisitor.visitNullSource

---

visitOrderBy()

visitOrderBy(operator, translations): void

Defined in: packages/core/src/visitors/attribute-renamer.ts:283

Parameters

Parameter	Type
operator	OrderBy
translations	Translations

Returns

void

Implementation of

PlanVisitor.visitOrderBy

---

visitProjection()

visitProjection(operator, translations): void

Defined in: packages/core/src/visitors/attribute-renamer.ts:163

Parameters

Parameter	Type
operator	Projection
translations	Translations

Returns

void

Implementation of

PlanVisitor.visitProjection

---

visitProjectionConcat()

visitProjectionConcat(operator, translations): void

Defined in: packages/core/src/visitors/attribute-renamer.ts:258

Parameters

Parameter	Type
operator	ProjectionConcat
translations	Translations

Returns

void

Implementation of

PlanVisitor.visitProjectionConcat

---

visitProjectionIndex()

visitProjectionIndex(operator, translations): void

Defined in: packages/core/src/visitors/attribute-renamer.ts:276

Parameters

Parameter	Type
operator	ProjectionIndex
translations	Translations

Returns

void

Implementation of

PlanVisitor.visitProjectionIndex

---

visitQuantifier()

visitQuantifier(operator, translations): void

Defined in: packages/core/src/visitors/attribute-renamer.ts:359

Parameters

Parameter	Type
operator	Quantifier
translations	Translations

Returns

void

Implementation of

PlanVisitor.visitQuantifier

---

visitRecursion()

visitRecursion(operator, translations): void

Defined in: packages/core/src/visitors/attribute-renamer.ts:158

Parameters

Parameter	Type
operator	Recursion
translations	Translations

Returns

void

Implementation of

PlanVisitor.visitRecursion

---

visitSelection()

visitSelection(operator, translations): void

Defined in: packages/core/src/visitors/attribute-renamer.ts:180

Parameters

Parameter	Type
operator	Selection
translations	Translations

Returns

void

Implementation of

PlanVisitor.visitSelection

---

visitSetOp()

visitSetOp(operator, translations): void

Defined in: packages/core/src/visitors/attribute-renamer.ts:311

Parameters

Parameter	Type
operator	SetOperator
translations	Translations

Returns

void

---

visitTupleFnSource()

visitTupleFnSource(operator, translations): void

Defined in: packages/core/src/visitors/attribute-renamer.ts:353

Parameters

Parameter	Type
operator	TupleFnSource
translations	Translations

Returns

void

Implementation of

PlanVisitor.visitTupleFnSource

---

visitTupleSource()

visitTupleSource(operator, translations): void

Defined in: packages/core/src/visitors/attribute-renamer.ts:184

Parameters

Parameter	Type
operator	TupleSource
translations	Translations

Returns

void

Implementation of

PlanVisitor.visitTupleSource

---

visitUnion()

visitUnion(operator, translations): void

Defined in: packages/core/src/visitors/attribute-renamer.ts:315

Parameters

Parameter	Type
operator	Union
translations	Translations

Returns

void

Implementation of

PlanVisitor.visitUnion