Mercurial > dive4elements > gnv-client

annotate geo-backend/src/main/java/de/intevation/gnv/geobackend/base/DefaultResultDescriptor.java @ 1127:ebeb56428409

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Added license headers and license file. geo-backend/trunk@1261 c6561f87-3c4e-4783-a992-168aeb5c3f6f
author Ingo Weinzierl <ingo.weinzierl@intevation.de>
date Tue, 02 Nov 2010 17:52:22 +0000
parents b757def3ff55
children
rev   line source
1127
ebeb56428409 Added license headers and license file.
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1 /*
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2 * Copyright (c) 2010 by Intevation GmbH
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3 *
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4 * This program is free software under the LGPL (>=v2.1)
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5 * Read the file LGPL.txt coming with the software for details
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6 * or visit http://www.gnu.org/licenses/ if it does not exist.
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7 */
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8
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9 package de.intevation.gnv.geobackend.base;
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10
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11 import java.util.ArrayList;
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12 import java.util.HashMap;
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13 import java.util.List;
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14 import java.util.Map;
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15
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16 /**
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17 * This Class is the DefaultImplementation of the
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18 * Interface ResultDescriptor
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19 * @author <a href="mailto:tim.englich@intevation.de">Tim Englich</a>
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20 *
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21 */
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22 public class DefaultResultDescriptor implements ResultDescriptor {
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23
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24 /**
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25 *The Uid of this Class
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26 */
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27 private static final long serialVersionUID = 7016889733270716130L;
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28 /**
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29 * The Names of the Columns of one Result
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30 */
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31 private List<String> columnNames = new ArrayList<String>();
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32 /**
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33 * The Name of the Classes of the Values of one Result.
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34 */
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35 private List<String> columnClassNames = new ArrayList<String>();
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36 /**
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37 * The Lookup for the Columnindex of the Columnnames
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38 */
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39 private Map<String, Integer> columnIndexLookup = new HashMap<String, Integer>();
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40
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41 /**
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42 * Constructor
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43 */
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44 public DefaultResultDescriptor() {
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45 super();
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46 }
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47
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48 /**
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49 * @see de.intevation.gnv.geobackend.base.ResultDescriptor#getColumnClassName(int)
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50 */
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51 public String getColumnClassName(int column) {
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52 return this.columnClassNames.get(column);
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53 }
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54
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55 /**
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56 * @see de.intevation.gnv.geobackend.base.ResultDescriptor#getColumnCount()
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57 */
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58 public int getColumnCount() {
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59 return this.columnClassNames.size();
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60 }
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61
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62 /**
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63 * @see de.intevation.gnv.geobackend.base.ResultDescriptor#getColumnName(int)
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64 */
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65 public String getColumnName(int column) {
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66 return this.columnNames.get(column);
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67 }
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68
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69 /**
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70 * @see de.intevation.gnv.geobackend.base.ResultDescriptor#addColumn(java.lang.String, java.lang.String)
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71 */
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72 public void addColumn(String name, String className) {
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73 this.columnClassNames.add(className);
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74 this.columnNames.add(name);
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75 this.columnIndexLookup.put(name,this.columnNames.size()-1);
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76 }
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77
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78 /**
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79 * @see de.intevation.gnv.geobackend.base.ResultDescriptor#getColumnIndices(java.lang.String[])
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80 */
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81 public int [] getColumnIndices(String [] columnNames) {
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82 if (columnNames == null) {
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83 return null;
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84 }
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85 int [] indices = new int[columnNames.length];
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86 for (int i = 0; i < indices.length; ++i) {
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87 indices[i] = this.getColumnIndex(columnNames[i]);
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88 }
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89 return indices;
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90 }
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91
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92 /**
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93 * @see de.intevation.gnv.geobackend.base.ResultDescriptor#getColumnIndex(java.lang.String)
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94 */
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95 public int getColumnIndex(String columnName) {
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96
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97 Integer value = this.columnIndexLookup.get(columnName);
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98 return value != null ? value.intValue() : -1;
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99 }
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100
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101 /**
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102 * @see java.lang.Object#toString()
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103 */
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104 @Override
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105 public String toString() {
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106 StringBuilder sb = new StringBuilder("[");
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107 int N = Math.min(columnNames.size(), columnClassNames.size());
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108 for (int i = 0; i < N; ++i) {
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109 if (i > 0) {
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110 sb.append(", ");
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111 }
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112 sb.append(columnNames.get(i))
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113 .append(": ")
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114 .append(columnClassNames.get(i));
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115 }
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116 sb.append(']');
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117 return sb.toString();
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118 }
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119 }
http://dive4elements.wald.intevation.org