1 /* 2 * Copyright (C) 2011 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 18 package android.filterfw.core; 19 20 import android.filterfw.core.Filter; 21 import android.filterfw.core.FilterGraph; 22 23 /** 24 * @hide 25 */ 26 public abstract class Scheduler { 27 // All methods are core internal methods as Scheduler internals are only used by the GraphRunner. 28 29 private FilterGraph mGraph; 30 31 Scheduler(FilterGraph graph) { 32 mGraph = graph; 33 } 34 35 FilterGraph getGraph() { 36 return mGraph; 37 } 38 39 abstract void reset(); 40 41 abstract Filter scheduleNextNode(); 42 43 boolean finished() { 44 // TODO: Check that the state of all nodes is FINISHED. 45 return true; 46 } 47 } 48
