MemoryStoreHashMapPages
Afficher les obsolètes
A special type of Pages object whose pages contain key-value pairs from a MemoryStoreHashMap. Pages:GetCurrentPage() can be used to retrieve an array of tables, each containing a key and value; these reflect the key-value pair data.
Échantillons de code
Listing items in a MemoryStore Hash Map
local MemoryStoreService = game:GetService("MemoryStoreService")
local testHashMap = MemoryStoreService:GetHashMap("HashMap1")
local EXPIRATION = 600
local NUM_TEST_ITEMS = 32
local function populateHashMap(hashMap: MemoryStoreHashMap, numItems: number): { [string]: any }
print("Setting HashMap data...")
local createdItems = {}
for index = 1, numItems do
local key = tostring(index) -- HashMap keys must be strings
local value = `{key}_test_value`
local success, result = pcall(hashMap.SetAsync, hashMap, key, value, EXPIRATION)
if success then
createdItems[key] = value
else
warn(`Error setting key {key}: {result}`)
end
end
print("Done setting HashMap data.")
return createdItems
end
local function getItemsFromAllPages(pages: MemoryStoreHashMapPages): { [string]: any }
-- Purely for logging purposes, we track what page number we're on
local currentPageNumber = 1
local retrievedItems = {}
while not pages.IsFinished do
print(`Getting items on page {currentPageNumber}...`)
local items = pages:GetCurrentPage()
for _, entry in pairs(items) do
print(`\t{entry.key}: {entry.value}`)
retrievedItems[entry.key] = entry.value
end
-- Advance pages if there are more pages to read
if not pages.IsFinished then
pages:AdvanceToNextPageAsync()
currentPageNumber += 1
end
end
print("Finished reading all pages")
return retrievedItems
end
local function compareAllItems(retrievedItems: { [string]: any }, expectedItems: { [string]: any }): number
print("Comparing retrieved items to expected items...")
local numMatchingItems = 0
for key, expectedValue in pairs(expectedItems) do
if retrievedItems[key] == expectedValue then
numMatchingItems += 1
else
warn(`Mismatched retrieved value for key {key}: expected {expectedValue}, retrieved {retrievedItems[key]}`)
end
end
print("Comparison complete!")
return numMatchingItems
end
-- Keys added to the hashmap are also added to this expectedItems table.
-- Later, the retrieved hashmap items will be compared against this table of expected items.
local expectedItems = populateHashMap(testHashMap, NUM_TEST_ITEMS)
-- Getting pages can error. In this case, we will let it error and stop program execution,
-- but you may want to pcall it and handle it differently.
print(`Getting HashMap pages with ListItemsAsync...`)
local pages = testHashMap:ListItemsAsync(NUM_TEST_ITEMS)
local retrievedItems = getItemsFromAllPages(pages)
local numMatchingItems = compareAllItems(retrievedItems, expectedItems)
-- If there were no errors setting or getting items, all items should match.
print(`Program complete. {numMatchingItems}/{NUM_TEST_ITEMS} retrieved items matched the expected values.`)
Résumé
Méthodes
Méthodes hérités de PagesReturns the items on the current page. The keys in the item are determined by the source of this object.
Iterates to the next page in the pages object, if possible.
Évènements
Propriétés
Propriétés hérité de Pages
Méthodes
Propriétés hérité de Pages