auto import from //depot/cupcake/@135843

1 files changed, 112 insertions, 0 deletions

diff --git a/core/java/android/os/Parcelable.java b/core/java/android/os/Parcelable.java
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+++ b/core/java/android/os/Parcelable.java
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+/*
+ * Copyright (C) 2006 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.os;
+
+/**
+ * Interface for classes whose instances can be written to
+ * and restored from a {@link Parcel}.  Classes implementing the Parcelable
+ * interface must also have a static field called <code>CREATOR</code>, which
+ * is an object implementing the {@link Parcelable.Creator Parcelable.Creator}
+ * interface.
+ * 
+ * <p>A typical implementation of Parcelable is:</p>
+ * 
+ * <pre>
+ * public class MyParcelable implements Parcelable {
+ *     private int mData;
+ *     
+ *     public void writeToParcel(Parcel out, int flags) {
+ *         out.writeInt(mData);
+ *     }
+ *
+ *     public static final Parcelable.Creator<MyParcelable> CREATOR
+ *             = new Parcelable.Creator<MyParcelable>() {
+ *         public MyParcelable createFromParcel(Parcel in) {
+ *             return new MyParcelable(in);
+ *         }
+ *
+ *         public MyParcelable[] newArray(int size) {
+ *             return new MyParcelable[size];
+ *         }
+ *     }
+ *     
+ *     private MyParcelable(Parcel in) {
+ *         mData = in.readInt();
+ *     }
+ * }</pre>
+ */
+public interface Parcelable {
+    /**
+     * Flag for use with {@link #writeToParcel}: the object being written
+     * is a return value, that is the result of a function such as
+     * "<code>Parcelable someFunction()</code>",
+     * "<code>void someFunction(out Parcelable)</code>", or
+     * "<code>void someFunction(inout Parcelable)</code>".  Some implementations
+     * may want to release resources at this point.
+     */
+    public static final int PARCELABLE_WRITE_RETURN_VALUE = 0x0001;
+    
+    /**
+     * Bit masks for use with {@link #describeContents}: each bit represents a
+     * kind of object considered to have potential special significance when
+     * marshalled.
+     */
+    public static final int CONTENTS_FILE_DESCRIPTOR = 0x0001;
+    
+    /**
+     * Describe the kinds of special objects contained in this Parcelable's
+     * marshalled representation.
+     *  
+     * @return a bitmask indicating the set of special object types marshalled
+     * by the Parcelable.
+     */
+    public int describeContents();
+    
+    /**
+     * Flatten this object in to a Parcel.
+     * 
+     * @param dest The Parcel in which the object should be written.
+     * @param flags Additional flags about how the object should be written.
+     * May be 0 or {@link #PARCELABLE_WRITE_RETURN_VALUE}.
+     */
+    public void writeToParcel(Parcel dest, int flags);
+
+    /**
+     * Interface that must be implemented and provided as a public CREATOR
+     * field that generates instances of your Parcelable class from a Parcel.
+     */
+    public interface Creator<T> {
+        /**
+         * Create a new instance of the Parcelable class, instantiating it
+         * from the given Parcel whose data had previously been written by
+         * {@link Parcelable#writeToParcel Parcelable.writeToParcel()}.
+         * 
+         * @param source The Parcel to read the object's data from.
+         * @return Returns a new instance of the Parcelable class.
+         */
+        public T createFromParcel(Parcel source);
+        
+        /**
+         * Create a new array of the Parcelable class.
+         * 
+         * @param size Size of the array.
+         * @return Returns an array of the Parcelable class, with every entry
+         * initialized to null.
+         */
+        public T[] newArray(int size);
+    }
+}