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1 /*
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2 * Copyright 2003-2007 Sun Microsystems, Inc. All Rights Reserved.
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3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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4 *
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5 * This code is free software; you can redistribute it and/or modify it
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6 * under the terms of the GNU General Public License version 2 only, as
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7 * published by the Free Software Foundation.
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8 *
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9 * This code is distributed in the hope that it will be useful, but WITHOUT
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10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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12 * version 2 for more details (a copy is included in the LICENSE file that
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13 * accompanied this code).
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14 *
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15 * You should have received a copy of the GNU General Public License version
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16 * 2 along with this work; if not, write to the Free Software Foundation,
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17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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18 *
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19 * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
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20 * CA 95054 USA or visit www.sun.com if you need additional information or
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21 * have any questions.
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22 *
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23 */
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24
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25 package sun.jvm.hotspot.utilities.soql;
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26
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27 import sun.jvm.hotspot.oops.*;
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28
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29 /**
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30 This is JavaScript wrapper for Java Array.
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31 */
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32
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33 public abstract class JSJavaArray extends JSJavaObject {
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34 public JSJavaArray(Array array, JSJavaFactory fac) {
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35 super(array, fac);
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36 type = (JSJavaArrayKlass) fac.newJSJavaKlass(array.getKlass());
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37 }
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38
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39 public final Array getArray() {
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40 return (Array) getOop();
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41 }
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42
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43 public final JSJavaClass getJSJavaClass() {
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44 return type.getJSJavaClass();
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45 }
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46
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47 public Object get(String name) {
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48 if (name.equals("length")) {
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49 return new Integer((int)getArray().getLength());
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50 } else {
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51 return super.get(name);
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52 }
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53 }
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54
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55 public Object get(int index) {
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56 return (isInRange(index)) ? type.getFieldValue(index, getArray())
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57 : super.get(index);
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58 }
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59
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60 public Object[] getIds() {
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61 Object[] superFields = super.getIds();
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62 final int len = (int) getArray().getLength();
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63 Object[] res = new Object[superFields.length + len];
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64 for (int i = 0; i < len; i++) {
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65 res[i] = new Integer(i);
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66 }
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67 System.arraycopy(superFields, 0, res, len, superFields.length);
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68 return res;
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69 }
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70
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71 public boolean has(String name) {
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72 if (name.equals("length")) {
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73 return true;
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74 } else {
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75 return super.has(name);
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76 }
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77 }
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78
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79 public boolean has(int index) {
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80 if (isInRange(index)) {
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81 return true;
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82 } else {
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83 return super.has(index);
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84 }
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85 }
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86
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87 public void put(String name, Object value) {
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88 if (! name.equals("length")) {
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89 super.put(name, value);
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90 }
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91 }
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92
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93 public void put(int index, Object value) {
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94 if (! isInRange(index)) {
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95 super.put(index, value);
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96 }
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97 }
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98
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99 //-- Internals only below this point
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100 private boolean isInRange(int index) {
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101 return index >= 0 && index < getArray().getLength();
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102 }
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103
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104 private JSJavaArrayKlass type;
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105 }
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