Class Canonicalizer

Utility for canonicalizing SPARQL Algebra operations by replacing blank node and variable names with deterministic generated names, and by sorting the variables of projections, since those form a set. Useful for comparing algebra representations in tests.

Index

Constructors

constructor

new Canonicalizer(): Canonicalizer
Returns Canonicalizer
- Defined in packages/algebra-transformations-1-1/dist/esm/lib/canonicalizer.d.ts:11

Properties

blankId

blankId: number

Methods

canonicalizeQuery

canonicalizeQuery(
res: Algebra.Operation,
replaceVariables: boolean,
): Algebra.Operation
Replaces values of BlankNodes in a query with newly generated names. This includes the blank nodes of CONSTRUCT templates: they get a new name but remain blank nodes.
Parameters
- res: Algebra.Operation
- replaceVariables: boolean
Returns Algebra.Operation
- Defined in packages/algebra-transformations-1-1/dist/esm/lib/canonicalizer.d.ts:20

genValue

genValue(): string
Returns string
- Defined in packages/algebra-transformations-1-1/dist/esm/lib/canonicalizer.d.ts:13

replaceValue

replaceValue(
    term: Term,
    nameMapping: Record<string, string>,
    replaceVars: boolean,
    factory: AlgebraFactory,
): Term
Parameters
- term: Term
- nameMapping: Record<string, string>
- replaceVars: boolean
- factory: AlgebraFactory
Returns Term
- Defined in packages/algebra-transformations-1-1/dist/esm/lib/canonicalizer.d.ts:21

Class Canonicalizer

Index

Constructors

Properties

Methods

Constructors

constructor

Returns Canonicalizer

Properties

blankId

Methods

canonicalizeQuery

Parameters

Returns Algebra.Operation

genValue

Returns string

replaceValue

Parameters

Returns Term

Settings

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