1 /*

     2  * Copyright (c) 1997, 2008, Oracle and/or its affiliates. All rights reserved.

     3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.

     4  *

     5  * This code is free software; you can redistribute it and/or modify it

     6  * under the terms of the GNU General Public License version 2 only, as

     7  * published by the Free Software Foundation.  Oracle designates this

     8  * particular file as subject to the "Classpath" exception as provided

     9  * by Oracle in the LICENSE file that accompanied this code.

    10  *

    11  * This code is distributed in the hope that it will be useful, but WITHOUT

    12  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or

    13  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License

    14  * version 2 for more details (a copy is included in the LICENSE file that

    15  * accompanied this code).

    16  *

    17  * You should have received a copy of the GNU General Public License version

    18  * 2 along with this work; if not, write to the Free Software Foundation,

    19  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.

    20  *

    21  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA

    22  * or visit www.oracle.com if you need additional information or have any

    23  * questions.

    24  */

    25 

    26 

    27 /*

    28  * The Original Code is HAT. The Initial Developer of the

    29  * Original Code is Bill Foote, with contributions from others

    30  * at JavaSoft/Sun.

    31  */

    32 

    33 package com.sun.tools.hat.internal.model;

    34 

    35 /**

    36  * Represents a chain of references to some target object

    37  *

    38  * @author      Bill Foote

    39  */

    40 

    41 public class ReferenceChain {

    42 

    43     JavaHeapObject      obj;    // Object referred to

    44     ReferenceChain      next;   // Next in chain

    45 

    46     public ReferenceChain(JavaHeapObject obj, ReferenceChain next) {

    47         this.obj = obj;

    48         this.next = next;

    49     }

    50 

    51     public JavaHeapObject getObj() {

    52         return obj;

    53     }

    54 

    55     public ReferenceChain getNext() {

    56         return next;

    57     }

    58 

    59     public int getDepth() {

    60         int count = 1;

    61         ReferenceChain tmp = next;

    62         while (tmp != null) {

    63             count++;

    64             tmp = tmp.next;

    65         }

    66         return count;

    67     }

    68 

    69 }