rxdb
Version:
A local-first realtime NoSQL Database for JavaScript applications - https://rxdb.info/
103 lines (100 loc) • 3.46 kB
JavaScript
;
Object.defineProperty(exports, "__esModule", {
value: true
});
exports.attachmentMapKey = attachmentMapKey;
exports.compareDocsWithIndex = compareDocsWithIndex;
exports.ensureNotRemoved = ensureNotRemoved;
exports.getMemoryCollectionKey = getMemoryCollectionKey;
exports.putWriteRowToState = putWriteRowToState;
exports.removeDocFromState = removeDocFromState;
var _arrayPushAtSortPosition = require("array-push-at-sort-position");
var _rxError = require("../../rx-error.js");
var _binarySearchBounds = require("./binary-search-bounds.js");
function getMemoryCollectionKey(databaseName, collectionName, schemaVersion) {
return [databaseName, collectionName, schemaVersion].join('--memory--');
}
function ensureNotRemoved(instance) {
if (instance.internals.removed) {
throw new Error('removed');
}
}
function attachmentMapKey(documentId, attachmentId) {
return documentId + '||' + attachmentId;
}
function sortByIndexStringComparator(a, b) {
if (a[0] < b[0]) {
return -1;
} else {
return 1;
}
}
/**
* @hotPath
*/
function putWriteRowToState(docId, state, stateByIndex, document, docInState) {
state.documents.set(docId, document);
for (var i = 0; i < stateByIndex.length; ++i) {
var byIndex = stateByIndex[i];
var docsWithIndex = byIndex.docsWithIndex;
var getIndexableString = byIndex.getIndexableString;
var newIndexString = getIndexableString(document);
var insertPosition = (0, _arrayPushAtSortPosition.pushAtSortPosition)(docsWithIndex, [newIndexString, document, docId], sortByIndexStringComparator, 0);
/**
* Remove previous if it was in the state
*/
if (docInState) {
var previousIndexString = getIndexableString(docInState);
if (previousIndexString === newIndexString) {
/**
* Performance shortcut.
* If index was not changed -> The old doc must be before or after the new one.
*/
var prev = docsWithIndex[insertPosition - 1];
if (prev && prev[2] === docId) {
docsWithIndex.splice(insertPosition - 1, 1);
} else {
var next = docsWithIndex[insertPosition + 1];
if (next[2] === docId) {
docsWithIndex.splice(insertPosition + 1, 1);
} else {
throw (0, _rxError.newRxError)('SNH', {
document,
args: {
byIndex
}
});
}
}
} else {
/**
* Index changed, we must search for the old one and remove it.
*/
var indexBefore = (0, _binarySearchBounds.boundEQ)(docsWithIndex, [previousIndexString], compareDocsWithIndex);
docsWithIndex.splice(indexBefore, 1);
}
}
}
}
function removeDocFromState(primaryPath, schema, state, doc) {
var docId = doc[primaryPath];
state.documents.delete(docId);
Object.values(state.byIndex).forEach(byIndex => {
var docsWithIndex = byIndex.docsWithIndex;
var indexString = byIndex.getIndexableString(doc);
var positionInIndex = (0, _binarySearchBounds.boundEQ)(docsWithIndex, [indexString], compareDocsWithIndex);
docsWithIndex.splice(positionInIndex, 1);
});
}
function compareDocsWithIndex(a, b) {
var indexStringA = a[0];
var indexStringB = b[0];
if (indexStringA < indexStringB) {
return -1;
} else if (indexStringA === indexStringB) {
return 0;
} else {
return 1;
}
}
//# sourceMappingURL=memory-helper.js.map