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1: /* StepFilter.java -- a step filter 2: Copyright (C) 2005 Free Software Foundation 3: 4: This file is part of GNU Classpath. 5: 6: GNU Classpath is free software; you can redistribute it and/or modify 7: it under the terms of the GNU General Public License as published by 8: the Free Software Foundation; either version 2, or (at your option) 9: any later version. 10: 11: GNU Classpath is distributed in the hope that it will be useful, but 12: WITHOUT ANY WARRANTY; without even the implied warranty of 13: MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 14: General Public License for more details. 15: 16: You should have received a copy of the GNU General Public License 17: along with GNU Classpath; see the file COPYING. If not, write to the 18: Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 19: 02110-1301 USA. 20: 21: Linking this library statically or dynamically with other modules is 22: making a combined work based on this library. Thus, the terms and 23: conditions of the GNU General Public License cover the whole 24: combination. 25: 26: As a special exception, the copyright holders of this library give you 27: permission to link this library with independent modules to produce an 28: executable, regardless of the license terms of these independent 29: modules, and to copy and distribute the resulting executable under 30: terms of your choice, provided that you also meet, for each linked 31: terms of your choice, provided that you also meet, for each linked 32: independent module, the terms and conditions of the license of that 33: module. An independent module is a module which is not derived from 34: or based on this library. If you modify this library, you may extend 35: this exception to your version of the library, but you are not 36: obligated to do so. If you do not wish to do so, delete this 37: exception statement from your version. */ 38: 39: 40: package gnu.classpath.jdwp.event.filters; 41: 42: import gnu.classpath.jdwp.event.Event; 43: import gnu.classpath.jdwp.exception.InvalidThreadException; 44: import gnu.classpath.jdwp.id.ThreadId; 45: 46: /** 47: * "An event filter which restricts reported step events to those which 48: * satisfy depth and size constraints. This modifier can only be used with 49: * step event kinds." 50: * 51: * @author Keith Seitz (keiths@redhat.com) 52: */ 53: public class StepFilter 54: implements IEventFilter 55: { 56: private ThreadId _tid; 57: private int _size; 58: private int _depth; 59: 60: /** 61: * Constructs a new StepFilter 62: * 63: * @param tid ID of the thread in which to step 64: * @param size size of each step 65: * @param depth relative call stack limit 66: * @throws InvalidThreadException if thread is invalid 67: */ 68: public StepFilter (ThreadId tid, int size, int depth) 69: throws InvalidThreadException 70: { 71: if (tid.getReference().get () == null) 72: throw new InvalidThreadException (tid.getId ()); 73: 74: _tid = tid; 75: _size = size; 76: _depth = depth; 77: } 78: 79: /** 80: * Returns the thread in which to step 81: * 82: * @return the thread's ID 83: */ 84: public ThreadId getThread () 85: { 86: return _tid; 87: } 88: 89: /** 90: * Returns the size of each step (insn, line) 91: * 92: * @return the step size 93: * @see gnu.classpath.jdwp.JdwpConstants.StepSize 94: */ 95: public int getSize () 96: { 97: return _size; 98: } 99: 100: /** 101: * Returns the relative call stack limit (into, over, out) 102: * 103: * @return how to step 104: * @see gnu.classpath.jdwp.JdwpConstants.StepDepth 105: */ 106: public int getDepth () 107: { 108: return _depth; 109: } 110: 111: /** 112: * Does the given event match the filter? 113: * 114: * @param event the <code>Event</code> to scrutinize 115: */ 116: public boolean matches (Event event) 117: { 118: // FIXME 119: throw new RuntimeException ("StepFilter.matches not implemented"); 120: } 121: }