@pujansrt/data-genie/dist/transformers/validating-reader.d.ts

High performant ETL engine written in TypeScript

import { DataReader, DataRecord } from '../core/interfaces';
import { DataTransformer } from '../transformers/transformers';
export interface ValidationMessage {
    record: DataRecord;
    field?: string;
    message: string;
}
export type RecordValidationRule = (record: DataRecord, messages: ValidationMessage[]) => boolean;
export declare class ValidatingReader extends DataTransformer {
    private rules;
    private messages;
    private throwExceptionOnFailure;
    private recordStackTraceInMessage;
    constructor(reader: DataReader);
    add(rule: RecordValidationRule): this;
    setExceptionOnFailure(value: boolean): this;
    setRecordStackTraceInMessage(value: boolean): this;
    getMessages(): ValidationMessage[];
    read(): AsyncIterableIterator<DataRecord>;
}
export declare class FieldValidator {
    private fieldName;
    private rules;
    constructor(fieldName: string);
    addRule(rule: (value: any) => boolean, errorMessage: string): this;
    createRecordValidationRule(): RecordValidationRule;
}