semantic-ds-toolkit/dist/src/core/anchors.d.ts

Performance-first semantic layer for modern data stacks - Stable Column Anchors & intelligent inference

import { StableColumnAnchor, ColumnFingerprint, ColumnStatistics, AnchorReconciliationResult, AnchorMatchScore, FingerprintConfig, ReconciliationOptions, ColumnData, DataType } from '../types/anchor.types';
export declare class StableColumnAnchorSystem {
    private config;
    private compiledPatterns;
    constructor(config?: Partial<FingerprintConfig>);
    generateAnchorId(): string;
    computeColumnStatistics(column: ColumnData): ColumnStatistics;
    detectRegexPatterns(columnName: string, sampleValues: string[]): string[];
    private compilePatterns;
    private extractTokens;
    private tokenMatchWithTokens;
    private splitCamelCase;
    private tokenizeName;
    private jaccardSimilarityFromTokens;
    inferDataType(values: any[]): DataType;
    generateFingerprint(column: ColumnData): ColumnFingerprint;
    fingerprintToString(fingerprint: ColumnFingerprint): string;
    createAnchor(dataset: string, column: ColumnData, mappedCid?: string, confidence?: number): StableColumnAnchor;
    calculateMatchScore(columnFingerprint: ColumnFingerprint, anchor: StableColumnAnchor, columnName: string, driftTolerance?: number): AnchorMatchScore;
    private parseFingerprintString;
    private calculateCardinalitySimilarity;
    private calculateRegexSimilarity;
    private calculateStatisticalSimilarity;
    private calculateNameSimilarity;
    reconcileAnchors(dataset: string, columns: ColumnData[], existingAnchors: StableColumnAnchor[], options?: ReconciliationOptions): AnchorReconciliationResult;
    private getMatchReasons;
    updateAnchorLastSeen(anchor: StableColumnAnchor): StableColumnAnchor;
}
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