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perspctives: nested incremental loading

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This commit is contained in:
Jan Prochazka
2022-07-24 14:23:56 +02:00
parent 53ee1d87c2
commit d48c34a4a5
6 changed files with 174 additions and 32 deletions
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24
packages/datalib/src/PerspectiveCache.ts
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@@ -14,6 +14,10 @@ export class PerspectiveBindingGroup {
loadedAll: boolean;
loadedRows: any[] = [];
bindingValues: any[];
matchRow(row) {
return this.table.bindingColumns.every((column, index) => row[column] == this.bindingValues[index]);
}
}
export class PerspectiveCacheTable {
@@ -44,28 +48,34 @@ export class PerspectiveCacheTable {
};
}
getBindingGroups(props: PerspectiveDataLoadProps): { cached: PerspectiveBindingGroup[]; uncached: any[][] } {
const cached: PerspectiveBindingGroup[] = [];
getBindingGroup(groupValues: any[]) {
const key = this.cache.stableStringify(groupValues);
return this.bindingGroups[key];
}
getUncachedBindingGroups(props: PerspectiveDataLoadProps): any[][] {
const uncached = [];
for (const group in props.bindingValues) {
for (const group of props.bindingValues) {
const key = this.cache.stableStringify(group);
const item = this.bindingGroups[key];
if (item) {
cached.push(item);
} else {
if (!item) {
uncached.push(group);
}
}
return { cached, uncached };
return uncached;
}
storeGroupSize(props: PerspectiveDataLoadProps, bindingValues: any[], count: number) {
const originalBindingValue = props.bindingValues.find(v => _zip(v, bindingValues).every(([x, y]) => x == y));
if (originalBindingValue) {
const key = this.cache.stableStringify(originalBindingValue);
// console.log('SET SIZE', originalBindingValue, bindingValues, key, count);
const group = new PerspectiveBindingGroup(this);
group.bindingValues = bindingValues;
group.groupSize = count;
this.bindingGroups[key] = group;
} else {
dbg('Group not found', bindingValues);
}
}
}