import { ColumnMetadata } from "../../metadata/ColumnMetadata";
/**
 * Table's columns in the database represented in this class.
 */
export declare class TableColumn {
    /**
     * Column name.
     */
    name: string;
    /**
     * Column type.
     */
    type: string;
    /**
     * Column's default value.
     */
    default: any;
    /**
     * Indicates if column is NULL, or is NOT NULL in the database.
     */
    isNullable: boolean;
    /**
     * Indicates if column is auto-generated sequence.
     */
    isGenerated: boolean;
    /**
     * Specifies generation strategy if this column will use auto increment.
     */
    generationStrategy?: "uuid" | "increment";
    /**
     * Indicates if column is a primary key.
     */
    isPrimary: boolean;
    /**
     * Indicates if column has unique value.
     */
    isUnique: boolean;
    /**
     * Indicates if column stores array.
     */
    isArray: boolean;
    /**
     * Column's comment.
     */
    comment?: string;
    /**
     * Column type's length. Used only on some column types.
     * For example type = "string" and length = "100" means that ORM will create a column with type varchar(100).
     */
    length: string;
    /**
     * Defines column character set.
     */
    charset?: string;
    /**
     * Defines column collation.
     */
    collation?: string;
    /**
     * The precision for a decimal (exact numeric) column (applies only for decimal column), which is the maximum
     * number of digits that are stored for the values.
     */
    precision?: number;
    /**
     * The scale for a decimal (exact numeric) column (applies only for decimal column), which represents the number
     * of digits to the right of the decimal point and must not be greater than precision.
     */
    scale?: number;
    /**
     * Array of possible enumerated values.
     */
    enum?: any[];
    constructor(options?: {
        name?: string;
        type?: string;
        length?: string;
        charset?: string;
        collation?: string;
        precision?: number;
        scale?: number;
        default?: any;
        isNullable?: boolean;
        isGenerated?: boolean;
        generationStrategy?: "uuid" | "increment";
        isPrimary?: boolean;
        isUnique?: boolean;
        comment?: string;
        enum?: any[];
    });
    /**
     * Clones this column to a new column with exact same properties as this column has.
     */
    clone(): TableColumn;
    /**
     * Creates a new column based on the given column metadata.
     */
    static create(columnMetadata: ColumnMetadata, normalizedType: string, normalizedDefault: string, normalizedLength: string): TableColumn;
}