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1 /*
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2 * Copyright 2004-2007 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 * Wraps a java.lang.String instance of the target VM.
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31 */
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32 public class JSJavaString extends JSJavaInstance {
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33 public JSJavaString(Instance instance, JSJavaFactory fac) {
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34 super(instance, fac);
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35 }
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36
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37 public String toString() {
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38 StringBuffer buf = new StringBuffer();
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39 buf.append("String (address=");
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40 buf.append(getOop().getHandle());
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41 buf.append(", value=");
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42 buf.append("'");
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43 buf.append(getString());
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44 buf.append('\'');
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45 buf.append(')');
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46 return buf.toString();
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47 }
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48
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49 protected Object getFieldValue(String name) {
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50 if (name.equals("stringValue")) {
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51 return getString();
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52 } else {
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53 return super.getFieldValue(name);
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54 }
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55 }
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56
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57 protected String[] getFieldNames() {
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58 String[] fields = super.getFieldNames();
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59 String[] res = new String[fields.length + 1];
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60 System.arraycopy(fields, 0, res, 0, fields.length);
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61 res[fields.length] = "stringValue";
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62 return res;
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63 }
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64
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65 protected boolean hasField(String name) {
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66 if (name.equals("stringValue")) {
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67 return true;
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68 } else {
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69 return super.hasField(name);
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70 }
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71 }
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72
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73 //-- Internals only below this point
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74 private String getString() {
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75 return OopUtilities.stringOopToString(getOop());
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76 }
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77 }
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