From 9e52cad40103b3ec3e4d281dfcff22f28d1e0330 Mon Sep 17 00:00:00 2001
From: Pepijn Van Eeckhoudt <pepijn@vaneeckhoudt.net>
Date: Tue, 17 Sep 2024 12:16:24 +0200
Subject: [PATCH] Add  to allow fixing
 https://github.com/vaadin/flow-components/issues/6648

---
 .../src/data-provider-controller/cache.d.ts        |  5 +++++
 .../src/data-provider-controller/cache.js          | 14 ++++++++++++++
 2 files changed, 19 insertions(+)

diff --git a/packages/component-base/src/data-provider-controller/cache.d.ts b/packages/component-base/src/data-provider-controller/cache.d.ts
index dbeac25146..55c377a62f 100644
--- a/packages/component-base/src/data-provider-controller/cache.d.ts
+++ b/packages/component-base/src/data-provider-controller/cache.d.ts
@@ -85,6 +85,11 @@ export class Cache<TItem> {
    */
   setPage(page: number, items: unknown[]): void;
 
+  /**
+   * Clears the entries for the given page from the `items` array.
+   */
+  clearPage(page: number): void;
+
   /**
    * Retrieves the sub-cache associated with the item at the given index
    * in the `items` array.
diff --git a/packages/component-base/src/data-provider-controller/cache.js b/packages/component-base/src/data-provider-controller/cache.js
index 43ce075fa9..ae814d123e 100644
--- a/packages/component-base/src/data-provider-controller/cache.js
+++ b/packages/component-base/src/data-provider-controller/cache.js
@@ -205,6 +205,20 @@ export class Cache {
     });
   }
 
+  /**
+   * Clears the entries for the given page from the `items` array.
+   *
+   * @param {number} page
+   */
+  clearPage(page) {
+    const startIndex = page * this.pageSize;
+    let endIndex = startIndex + this.pageSize;
+    if (this.size !== undefined && endIndex >= this.size) {
+      endIndex = this.size;
+    }
+    this.items.fill(undefined, startIndex, endIndex);
+  }
+
   /**
    * Retrieves the sub-cache associated with the item at the given index
    * in the `items` array.