neo4j-driver-core
Version:
Internals of neo4j-driver
242 lines (241 loc) • 11.7 kB
JavaScript
;
/**
* Copyright (c) "Neo4j"
* Neo4j Sweden AB [https://neo4j.com]
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
var __awaiter = (this && this.__awaiter) || function (thisArg, _arguments, P, generator) {
function adopt(value) { return value instanceof P ? value : new P(function (resolve) { resolve(value); }); }
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function fulfilled(value) { try { step(generator.next(value)); } catch (e) { reject(e); } }
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ar[i] = from[i];
}
}
return to.concat(ar || Array.prototype.slice.call(from));
};
Object.defineProperty(exports, "__esModule", { value: true });
exports.bookmarkManager = void 0;
/**
* Interface for the piece of software responsible for keeping track of current active bookmarks accross the driver.
* @interface
* @since 5.0
*/
var BookmarkManager = /** @class */ (function () {
/**
* @constructor
* @private
*/
function BookmarkManager() {
throw new Error('Not implemented');
}
/**
* Method called when the bookmarks get updated when a transaction finished.
*
* This method will be called when auto-commit queries finish and when explicit transactions
* get committed.
*
* @param {Iterable<string>} previousBookmarks The bookmarks used when starting the transaction
* @param {Iterable<string>} newBookmarks The new bookmarks received at the end of the transaction.
* @returns {void}
*/
BookmarkManager.prototype.updateBookmarks = function (previousBookmarks, newBookmarks) {
return __awaiter(this, void 0, void 0, function () {
return __generator(this, function (_a) {
throw new Error('Not implemented');
});
});
};
/**
* Method called by the driver to get the bookmarks.
*
* @returns {Iterable<string>} The set of bookmarks
*/
BookmarkManager.prototype.getBookmarks = function () {
return __awaiter(this, void 0, void 0, function () {
return __generator(this, function (_a) {
throw new Error('Not implemented');
});
});
};
return BookmarkManager;
}());
exports.default = BookmarkManager;
/**
* @typedef {Object} BookmarkManagerConfig
*
* @since 5.0
* @property {Iterable<string>} [initialBookmarks] Defines the initial set of bookmarks. The key is the database name and the values are the bookmarks.
* @property {function():Promise<Iterable<string>>} [bookmarksSupplier] Called for supplying extra bookmarks to the BookmarkManager
* @property {function(bookmarks: Iterable<string>): Promise<void>} [bookmarksConsumer] Called when the set of bookmarks get updated
*/
/**
* Provides an configured {@link BookmarkManager} instance.
*
* @since 5.0
* @param {BookmarkManagerConfig} [config={}]
* @returns {BookmarkManager}
*/
function bookmarkManager(config) {
if (config === void 0) { config = {}; }
var initialBookmarks = new Set(config.initialBookmarks);
return new Neo4jBookmarkManager(initialBookmarks, config.bookmarksSupplier, config.bookmarksConsumer);
}
exports.bookmarkManager = bookmarkManager;
var Neo4jBookmarkManager = /** @class */ (function () {
function Neo4jBookmarkManager(_bookmarks, _bookmarksSupplier, _bookmarksConsumer) {
this._bookmarks = _bookmarks;
this._bookmarksSupplier = _bookmarksSupplier;
this._bookmarksConsumer = _bookmarksConsumer;
}
Neo4jBookmarkManager.prototype.updateBookmarks = function (previousBookmarks, newBookmarks) {
return __awaiter(this, void 0, void 0, function () {
var bookmarks, previousBookmarks_1, previousBookmarks_1_1, bm, newBookmarks_1, newBookmarks_1_1, bm;
var e_1, _a, e_2, _b;
return __generator(this, function (_c) {
switch (_c.label) {
case 0:
bookmarks = this._bookmarks;
try {
for (previousBookmarks_1 = __values(previousBookmarks), previousBookmarks_1_1 = previousBookmarks_1.next(); !previousBookmarks_1_1.done; previousBookmarks_1_1 = previousBookmarks_1.next()) {
bm = previousBookmarks_1_1.value;
bookmarks.delete(bm);
}
}
catch (e_1_1) { e_1 = { error: e_1_1 }; }
finally {
try {
if (previousBookmarks_1_1 && !previousBookmarks_1_1.done && (_a = previousBookmarks_1.return)) _a.call(previousBookmarks_1);
}
finally { if (e_1) throw e_1.error; }
}
try {
for (newBookmarks_1 = __values(newBookmarks), newBookmarks_1_1 = newBookmarks_1.next(); !newBookmarks_1_1.done; newBookmarks_1_1 = newBookmarks_1.next()) {
bm = newBookmarks_1_1.value;
bookmarks.add(bm);
}
}
catch (e_2_1) { e_2 = { error: e_2_1 }; }
finally {
try {
if (newBookmarks_1_1 && !newBookmarks_1_1.done && (_b = newBookmarks_1.return)) _b.call(newBookmarks_1);
}
finally { if (e_2) throw e_2.error; }
}
if (!(typeof this._bookmarksConsumer === 'function')) return [3 /*break*/, 2];
return [4 /*yield*/, this._bookmarksConsumer(__spreadArray([], __read(bookmarks), false))];
case 1:
_c.sent();
_c.label = 2;
case 2: return [2 /*return*/];
}
});
});
};
Neo4jBookmarkManager.prototype.getBookmarks = function () {
var _a;
return __awaiter(this, void 0, void 0, function () {
var bookmarks, suppliedBookmarks, suppliedBookmarks_1, suppliedBookmarks_1_1, bm;
var e_3, _b;
return __generator(this, function (_c) {
switch (_c.label) {
case 0:
bookmarks = new Set(this._bookmarks);
if (!(typeof this._bookmarksSupplier === 'function')) return [3 /*break*/, 2];
return [4 /*yield*/, this._bookmarksSupplier()];
case 1:
suppliedBookmarks = (_a = _c.sent()) !== null && _a !== void 0 ? _a : [];
try {
for (suppliedBookmarks_1 = __values(suppliedBookmarks), suppliedBookmarks_1_1 = suppliedBookmarks_1.next(); !suppliedBookmarks_1_1.done; suppliedBookmarks_1_1 = suppliedBookmarks_1.next()) {
bm = suppliedBookmarks_1_1.value;
bookmarks.add(bm);
}
}
catch (e_3_1) { e_3 = { error: e_3_1 }; }
finally {
try {
if (suppliedBookmarks_1_1 && !suppliedBookmarks_1_1.done && (_b = suppliedBookmarks_1.return)) _b.call(suppliedBookmarks_1);
}
finally { if (e_3) throw e_3.error; }
}
_c.label = 2;
case 2: return [2 /*return*/, __spreadArray([], __read(bookmarks), false)];
}
});
});
};
return Neo4jBookmarkManager;
}());