import type { Dictionary, EntityKey, ExpandProperty } from './typings';
import type { Transaction } from './connections';
import type { LogContext } from './logging';
export declare enum FlushMode {
    /** The `EntityManager` delays the flush until the current Transaction is committed. */
    COMMIT = "commit",
    /** This is the default mode, and it flushes the `EntityManager` only if necessary. */
    AUTO = "auto",
    /** Flushes the `EntityManager` before every query. */
    ALWAYS = "always"
}
export declare enum PopulateHint {
    INFER = "infer",
    ALL = "all"
}
export declare enum PopulatePath {
    INFER = "$infer",
    ALL = "*"
}
export declare enum GroupOperator {
    $and = "and",
    $or = "or"
}
export declare enum QueryOperator {
    $eq = "=",
    $in = "in",
    $nin = "not in",
    $gt = ">",
    $gte = ">=",
    $lt = "<",
    $lte = "<=",
    $ne = "!=",
    $not = "not",
    $like = "like",
    $re = "regexp",
    $fulltext = "fulltext",
    $exists = "not null",
    $ilike = "ilike",// postgres only
    $overlap = "&&",// postgres only
    $contains = "@>",// postgres only
    $contained = "<@",// postgres only
    $none = "none",// collection operators, sql only
    $some = "some",// collection operators, sql only
    $every = "every",// collection operators, sql only
    $hasKey = "?",// postgres only, json
    $hasKeys = "?&",// postgres only, json
    $hasSomeKeys = "?|"
}
export declare const ARRAY_OPERATORS: string[];
export declare const JSON_KEY_OPERATORS: string[];
export declare enum QueryOrder {
    ASC = "ASC",
    ASC_NULLS_LAST = "ASC NULLS LAST",
    ASC_NULLS_FIRST = "ASC NULLS FIRST",
    DESC = "DESC",
    DESC_NULLS_LAST = "DESC NULLS LAST",
    DESC_NULLS_FIRST = "DESC NULLS FIRST",
    asc = "asc",
    asc_nulls_last = "asc nulls last",
    asc_nulls_first = "asc nulls first",
    desc = "desc",
    desc_nulls_last = "desc nulls last",
    desc_nulls_first = "desc nulls first"
}
export declare enum QueryOrderNumeric {
    ASC = 1,
    DESC = -1
}
export type QueryOrderKeysFlat = QueryOrder | QueryOrderNumeric | keyof typeof QueryOrder;
export type QueryOrderKeys<T> = QueryOrderKeysFlat | QueryOrderMap<T>;
export type QueryOrderMap<T> = {
    [K in EntityKey<T>]?: QueryOrderKeys<ExpandProperty<T[K]>>;
};
export type QBQueryOrderMap<T> = QueryOrderMap<T> | Dictionary;
export interface FlatQueryOrderMap {
    [x: string]: QueryOrderKeysFlat;
}
export declare enum QueryFlag {
    DISTINCT = "DISTINCT",
    PAGINATE = "PAGINATE",
    DISABLE_PAGINATE = "DISABLE_PAGINATE",
    UPDATE_SUB_QUERY = "UPDATE_SUB_QUERY",
    DELETE_SUB_QUERY = "DELETE_SUB_QUERY",
    CONVERT_CUSTOM_TYPES = "CONVERT_CUSTOM_TYPES",
    INCLUDE_LAZY_FORMULAS = "INCLUDE_LAZY_FORMULAS",
    AUTO_JOIN_ONE_TO_ONE_OWNER = "AUTO_JOIN_ONE_TO_ONE_OWNER",
    INFER_POPULATE = "INFER_POPULATE",
    IDENTITY_INSERT = "IDENTITY_INSERT"
}
export declare const SCALAR_TYPES: string[];
export declare enum ReferenceKind {
    SCALAR = "scalar",
    ONE_TO_ONE = "1:1",
    ONE_TO_MANY = "1:m",
    MANY_TO_ONE = "m:1",
    MANY_TO_MANY = "m:n",
    EMBEDDED = "embedded"
}
export declare enum Cascade {
    PERSIST = "persist",
    MERGE = "merge",
    REMOVE = "remove",
    ALL = "all",
    /** @internal */
    SCHEDULE_ORPHAN_REMOVAL = "schedule_orphan_removal",
    /** @internal */
    CANCEL_ORPHAN_REMOVAL = "cancel_orphan_removal"
}
export declare enum LoadStrategy {
    SELECT_IN = "select-in",
    JOINED = "joined"
}
export declare enum DataloaderType {
    NONE = 0,
    REFERENCE = 1,
    COLLECTION = 2,
    ALL = 3
}
export declare enum LockMode {
    NONE = 0,
    OPTIMISTIC = 1,
    PESSIMISTIC_READ = 2,
    PESSIMISTIC_WRITE = 3,
    PESSIMISTIC_PARTIAL_WRITE = 4,
    PESSIMISTIC_WRITE_OR_FAIL = 5,
    PESSIMISTIC_PARTIAL_READ = 6,
    PESSIMISTIC_READ_OR_FAIL = 7
}
export declare enum IsolationLevel {
    READ_UNCOMMITTED = "read uncommitted",
    READ_COMMITTED = "read committed",
    SNAPSHOT = "snapshot",
    REPEATABLE_READ = "repeatable read",
    SERIALIZABLE = "serializable"
}
export declare enum EventType {
    onInit = "onInit",
    onLoad = "onLoad",
    beforeCreate = "beforeCreate",
    afterCreate = "afterCreate",
    beforeUpdate = "beforeUpdate",
    afterUpdate = "afterUpdate",
    beforeUpsert = "beforeUpsert",
    afterUpsert = "afterUpsert",
    beforeDelete = "beforeDelete",
    afterDelete = "afterDelete",
    beforeFlush = "beforeFlush",
    onFlush = "onFlush",
    afterFlush = "afterFlush",
    beforeTransactionStart = "beforeTransactionStart",
    afterTransactionStart = "afterTransactionStart",
    beforeTransactionCommit = "beforeTransactionCommit",
    afterTransactionCommit = "afterTransactionCommit",
    beforeTransactionRollback = "beforeTransactionRollback",
    afterTransactionRollback = "afterTransactionRollback"
}
export declare const EventTypeMap: Record<EventType, number>;
export type TransactionEventType = EventType.beforeTransactionStart | EventType.afterTransactionStart | EventType.beforeTransactionCommit | EventType.afterTransactionCommit | EventType.beforeTransactionRollback | EventType.afterTransactionRollback;
export interface TransactionOptions {
    ctx?: Transaction;
    isolationLevel?: IsolationLevel;
    readOnly?: boolean;
    clear?: boolean;
    flushMode?: FlushMode;
    ignoreNestedTransactions?: boolean;
    loggerContext?: LogContext;
}
export declare abstract class PlainObject {
}
export declare enum DeferMode {
    INITIALLY_IMMEDIATE = "immediate",
    INITIALLY_DEFERRED = "deferred"
}