1 /* 2 * Copyright (C) 2008 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 package com.android.io; 18 19 import java.io.InputStream; 20 import java.io.OutputStream; 21 22 /** 23 * A file. 24 */ 25 public interface IAbstractFile extends IAbstractResource { 26 public static enum PreferredWriteMode { 27 INPUTSTREAM, OUTPUTSTREAM; 28 } 29 30 /** 31 * Returns an {@link InputStream} object on the file content. 32 * @throws StreamException 33 */ getContents()34 InputStream getContents() throws StreamException; 35 36 /** 37 * Sets the content of the file. 38 * @param source the content 39 * @throws StreamException 40 */ setContents(InputStream source)41 void setContents(InputStream source) throws StreamException; 42 43 /** 44 * Returns an {@link OutputStream} to write into the file. 45 * @throws StreamException 46 */ getOutputStream()47 OutputStream getOutputStream() throws StreamException; 48 49 /** 50 * Returns the preferred mode to write into the file. 51 */ getPreferredWriteMode()52 PreferredWriteMode getPreferredWriteMode(); 53 54 /** 55 * Returns the last modification timestamp 56 */ getModificationStamp()57 long getModificationStamp(); 58 } 59