@azure/cosmos
Version:
Microsoft Azure Cosmos DB Service Node.js SDK for NOSQL API
57 lines • 2.12 kB
JavaScript
;
// Copyright (c) Microsoft Corporation.
// Licensed under the MIT License.
Object.defineProperty(exports, "__esModule", { value: true });
exports.OrderByQueryProcessingStrategy = void 0;
const OrderByQueryContinuationToken_js_1 = require("../../documents/ContinuationToken/OrderByQueryContinuationToken.js");
/**
* Strategy for processing ORDER BY queries
* @hidden
*/
class OrderByQueryProcessingStrategy {
sortOrders;
constructor(sortOrders) {
this.sortOrders = sortOrders;
}
/**
* Creates additional query info from ORDER BY continuation token
*/
createAdditionalQueryInfo(parsedToken) {
const orderByToken = parsedToken;
const info = {};
if (orderByToken.orderByItems)
info.orderByItems = orderByToken.orderByItems;
if (orderByToken.documentRid)
info.rid = orderByToken.documentRid;
return Object.keys(info).length > 0 ? info : undefined;
}
/**
* Creates filter context for ORDER BY continuation token processing
*/
createFilterContext(parsedToken) {
const orderByToken = parsedToken;
return {
orderByItems: orderByToken.orderByItems,
rid: orderByToken.documentRid,
skipCount: orderByToken.skipCount,
sortOrders: this.sortOrders,
};
}
/**
* For ORDER BY queries, only apply filter to the target partition (last range in continuation)
*/
getPartitionFilterContext(filterContext, targetPartitionId, partitionTargetRangeId) {
if (!filterContext)
return undefined;
const isTargetPartition = targetPartitionId === partitionTargetRangeId;
return isTargetPartition ? filterContext : undefined;
}
/**
* Parses ORDER BY continuation token
*/
parseContinuationToken(continuationToken) {
return (0, OrderByQueryContinuationToken_js_1.parseOrderByQueryContinuationToken)(continuationToken);
}
}
exports.OrderByQueryProcessingStrategy = OrderByQueryProcessingStrategy;
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