1 files changed, 56 insertions, 0 deletions
diff --git a/android/arch/paging/PageResult.java b/android/arch/paging/PageResult.java
new file mode 100644
index 00000000..a4090f61
--- /dev/null
+++ b/android/arch/paging/PageResult.java
@@ -0,0 +1,56 @@
+/*
+ * Copyright (C) 2017 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package android.arch.paging;
+
+import android.support.annotation.AnyThread;
+import android.support.annotation.MainThread;
+import android.support.annotation.NonNull;
+
+class PageResult<K, V> {
+    static final int INIT = 0;
+
+    // contiguous results
+    static final int APPEND = 1;
+    static final int PREPEND = 2;
+
+    // non-contiguous, tile result
+    static final int TILE = 3;
+
+    public final int type;
+    public final Page<K, V> page;
+    @SuppressWarnings("WeakerAccess")
+    public final int leadingNulls;
+    @SuppressWarnings("WeakerAccess")
+    public final int trailingNulls;
+    @SuppressWarnings("WeakerAccess")
+    public final int positionOffset;
+
+    PageResult(int type, Page<K, V> page, int leadingNulls, int trailingNulls, int positionOffset) {
+        this.type = type;
+        this.page = page;
+        this.leadingNulls = leadingNulls;
+        this.trailingNulls = trailingNulls;
+        this.positionOffset = positionOffset;
+    }
+
+    interface Receiver<K, V> {
+        @AnyThread
+        void postOnPageResult(@NonNull PageResult<K, V> pageResult);
+        @MainThread
+        void onPageResult(@NonNull PageResult<K, V> pageResult);
+    }
+}