GNU Classpath (0.20) | |
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1: /* ObjID.java -- 2: Copyright (c) 1996, 1997, 1998, 1999, 2004 Free Software Foundation, Inc. 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: independent module, the terms and conditions of the license of that 32: module. An independent module is a module which is not derived from 33: or based on this library. If you modify this library, you may extend 34: this exception to your version of the library, but you are not 35: obligated to do so. If you do not wish to do so, delete this 36: exception statement from your version. */ 37: 38: 39: package java.rmi.server; 40: 41: import java.io.DataInput; 42: import java.io.DataOutput; 43: import java.io.IOException; 44: import java.io.ObjectInput; 45: import java.io.ObjectOutput; 46: import java.io.Serializable; 47: 48: public final class ObjID implements Serializable 49: { 50: static final long serialVersionUID = -6386392263968365220L; 51: 52: private static long next = 0x8000000000000000L; 53: private static final Object lock = ObjID.class; 54: 55: public static final int REGISTRY_ID = 0; 56: public static final int ACTIVATOR_ID = 1; 57: public static final int DGC_ID = 2; 58: 59: private long objNum; 60: private UID space; 61: 62: public ObjID() { 63: synchronized (lock) { 64: objNum = next++; 65: } 66: space = new UID(); 67: } 68: 69: public ObjID(int num) { 70: objNum = (long)num; 71: space = new UID((short)0); 72: } 73: 74: public void write(ObjectOutput out) throws IOException { 75: DataOutput dout = (DataOutput)out; 76: dout.writeLong(objNum); 77: space.write(dout); 78: } 79: 80: public static ObjID read(ObjectInput in) throws IOException { 81: DataInput din = (DataInput)in; 82: ObjID id = new ObjID(); 83: id.objNum = din.readLong(); 84: id.space = UID.read(din); 85: return (id); 86: } 87: 88: public int hashCode() { 89: return ((int)objNum); 90: } 91: 92: public boolean equals(Object obj) { 93: if (obj instanceof ObjID && this.objNum == ((ObjID)obj).objNum) { 94: return (true); 95: } 96: return (false); 97: } 98: 99: public String toString() { 100: return ("[objNum: " + objNum + ", " + space + "]"); 101: } 102: 103: }
GNU Classpath (0.20) |