1 files changed, 50 insertions, 0 deletions
diff --git a/src/com/android/tv/dvr/data/IdGenerator.java b/src/com/android/tv/dvr/data/IdGenerator.java
new file mode 100644
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+++ b/src/com/android/tv/dvr/data/IdGenerator.java
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+/*
+ * Copyright (C) 2016 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 com.android.tv.dvr.data;
+
+import java.util.concurrent.atomic.AtomicLong;
+
+/**
+ * A class which generate the ID which increases sequentially.
+ */
+public class IdGenerator {
+    /**
+     * ID generator for the scheduled recording.
+     */
+    public static final IdGenerator SCHEDULED_RECORDING = new IdGenerator();
+
+    /**
+     * ID generator for the series recording.
+     */
+    public static final IdGenerator SERIES_RECORDING = new IdGenerator();
+
+    private final AtomicLong mMaxId = new AtomicLong(0);
+
+    /**
+     * Sets the new maximum ID.
+     */
+    public void setMaxId(long maxId) {
+        mMaxId.set(maxId);
+    }
+
+    /**
+     * Returns the new ID which is greater than the existing maximum ID by 1.
+     */
+    public long newId() {
+        return mMaxId.incrementAndGet();
+    }
+}