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import {
TransactionMode,
Value,
BridgeIDBCursorDirection,
Key,
KeyPath,
BridgeIDBDatabaseInfo,
} from "./util/types";
import BridgeIDBKeyRange from "./BridgeIDBKeyRange";
export interface ObjectStoreProperties {
keyPath: KeyPath | null;
autoIncrement: boolean;
indexes: string[];
}
export interface IndexProperties {
keyPath: KeyPath;
multiEntry: boolean;
unique: boolean;
}
export interface Schema {
databaseName: string;
databaseVersion: number;
objectStores: { [name: string]: ObjectStoreProperties };
indexes: { [name: string]: IndexProperties };
}
export interface DatabaseConnection {
connectionCookie: string;
}
export interface DatabaseTransaction {
transactionCookie: string;
}
export enum ResultLevel {
Full,
OnlyKeys,
OnlyCount,
}
export interface RecordGetRequest {
direction: BridgeIDBCursorDirection;
objectStoreName: string;
indexName: string | undefined;
/**
* The range of keys to return.
* If indexName is defined, the range refers to the index keys.
* Otherwise it refers to the object store keys.
*/
range: BridgeIDBKeyRange | undefined;
/**
* Last cursor position in terms of the index key.
* Can only be specified if indexName is defined and
* lastObjectStorePosition is defined.
*
* Must either be undefined or within range.
*/
lastIndexPosition?: Key;
/**
* Last position in terms of the object store key.
*/
lastObjectStorePosition?: Key;
/**
* If specified, the index key of the results must be
* greater or equal to advanceIndexKey.
*
* Only applicable if indexName is specified.
*/
advanceIndexKey?: Key;
/**
* If specified, the primary key of the results must be greater
* or equal to advancePrimaryKey.
*/
advancePrimaryKey?: Key;
/**
* Maximum number of resuts to return.
* If -1, return all available results
*/
limit: number;
resultLevel: ResultLevel;
}
export interface RecordGetResponse {
values: Value[] | undefined;
indexKeys: Key[] | undefined;
primaryKeys: Key[] | undefined;
count: number;
}
export interface RecordStoreRequest {
objectStoreName: string;
value: Value;
key: Key | undefined;
overwrite: boolean;
}
export interface Backend {
getDatabases(): Promise<BridgeIDBDatabaseInfo[]>;
connectDatabase(name: string): Promise<DatabaseConnection>;
beginTransaction(
conn: DatabaseConnection,
objectStores: string[],
mode: TransactionMode,
): Promise<DatabaseTransaction>;
enterVersionChange(
conn: DatabaseConnection,
newVersion: number,
): Promise<DatabaseTransaction>;
/**
* Even though the standard interface for indexedDB doesn't require
* the client to run deleteDatabase in a version transaction, there is
* implicitly one running.
*/
deleteDatabase(btx: DatabaseTransaction, name: string): Promise<void>;
close(db: DatabaseConnection): Promise<void>;
getSchema(db: DatabaseConnection): Schema;
renameIndex(btx: DatabaseTransaction, oldName: string, newName: string): void;
deleteIndex(btx: DatabaseTransaction, indexName: string): void;
rollback(btx: DatabaseTransaction): Promise<void>;
commit(btx: DatabaseTransaction): Promise<void>;
deleteObjectStore(btx: DatabaseTransaction, name: string): void;
createObjectStore(
btx: DatabaseTransaction,
name: string,
keyPath: string | string[] | null,
autoIncrement: boolean,
): void;
renameObjectStore(
btx: DatabaseTransaction,
oldName: string,
newName: string,
): void;
createIndex(
btx: DatabaseTransaction,
indexName: string,
objectStoreName: string,
keyPath: KeyPath,
multiEntry: boolean,
unique: boolean,
): void;
deleteRecord(
btx: DatabaseTransaction,
objectStoreName: string,
range: BridgeIDBKeyRange,
): Promise<void>;
getRecords(
btx: DatabaseTransaction,
req: RecordGetRequest,
): Promise<RecordGetResponse>;
storeRecord(
btx: DatabaseTransaction,
storeReq: RecordStoreRequest,
): Promise<void>;
}
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