Mercurial > dive4elements > gnv-client

annotate geo-backend/src/main/java/de/intevation/gnv/geobackend/base/DefaultResultDescriptor.java @ 886:8b442223741c

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Ordered imports. Removed empty headers. geo-backend/trunk@856 c6561f87-3c4e-4783-a992-168aeb5c3f6f
author Sascha L. Teichmann <sascha.teichmann@intevation.de>
date Mon, 29 Mar 2010 09:22:07 +0000
parents 1c3efbd2fc5a
children b757def3ff55
rev   line source
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1 package de.intevation.gnv.geobackend.base;
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2
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3 import java.util.ArrayList;
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4 import java.util.HashMap;
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5 import java.util.List;
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6 import java.util.Map;
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7
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8 /**
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9 * This Class is the DefaultImplementation of the
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10 * Interface ResultDescriptor
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11 * @author Tim Englich <tim.englich@intevation.de>
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12 *
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13 */
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14 public class DefaultResultDescriptor implements ResultDescriptor {
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15
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16 /**
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17 *The Uid of this Class
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18 */
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19 private static final long serialVersionUID = 7016889733270716130L;
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20 /**
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21 * The Names of the Columns of one Result
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22 */
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23 private List<String> columnNames = new ArrayList<String>();
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24 /**
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25 * The Name of the Classes of the Values of one Result.
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26 */
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27 private List<String> columnClassNames = new ArrayList<String>();
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28 /**
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29 * The Lookup for the Columnindex of the Columnnames
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30 */
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31 private Map<String, Integer> columnIndexLookup = new HashMap<String, Integer>();
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32
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33 /**
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34 * Constructor
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35 */
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36 public DefaultResultDescriptor() {
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37 super();
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38 }
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39
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40 /**
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41 * @see de.intevation.gnv.geobackend.base.ResultDescriptor#getColumnClassName(int)
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42 */
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43 public String getColumnClassName(int column) {
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44 return this.columnClassNames.get(column);
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45 }
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46
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47 /**
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48 * @see de.intevation.gnv.geobackend.base.ResultDescriptor#getColumnCount()
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49 */
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50 public int getColumnCount() {
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51 return this.columnClassNames.size();
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52 }
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53
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54 /**
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55 * @see de.intevation.gnv.geobackend.base.ResultDescriptor#getColumnName(int)
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56 */
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57 public String getColumnName(int column) {
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58 return this.columnNames.get(column);
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59 }
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60
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61 /**
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62 * @see de.intevation.gnv.geobackend.base.ResultDescriptor#addColumn(java.lang.String, java.lang.String)
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63 */
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64 public void addColumn(String name, String className) {
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65 this.columnClassNames.add(className);
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66 this.columnNames.add(name);
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67 this.columnIndexLookup.put(name,this.columnNames.size()-1);
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68 }
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69
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70 /**
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71 * @see de.intevation.gnv.geobackend.base.ResultDescriptor#getColumnIndices(java.lang.String[])
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72 */
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73 public int [] getColumnIndices(String [] columnNames) {
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74 if (columnNames == null) {
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75 return null;
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76 }
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77 int [] indices = new int[columnNames.length];
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78 for (int i = 0; i < indices.length; ++i) {
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79 indices[i] = this.getColumnIndex(columnNames[i]);
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80 }
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81 return indices;
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82 }
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83
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84 /**
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85 * @see de.intevation.gnv.geobackend.base.ResultDescriptor#getColumnIndex(java.lang.String)
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86 */
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87 public int getColumnIndex(String columnName) {
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88
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89 Integer value = this.columnIndexLookup.get(columnName);
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90 return value != null ? value.intValue() : -1;
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91 }
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92
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93 /**
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94 * @see java.lang.Object#toString()
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95 */
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96 @Override
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97 public String toString() {
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98 StringBuilder sb = new StringBuilder("[");
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99 int N = Math.min(columnNames.size(), columnClassNames.size());
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100 for (int i = 0; i < N; ++i) {
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101 if (i > 0) {
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102 sb.append(", ");
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103 }
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104 sb.append(columnNames.get(i))
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105 .append(": ")
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106 .append(columnClassNames.get(i));
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107 }
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108 sb.append(']');
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109 return sb.toString();
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110 }
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111 }
http://dive4elements.wald.intevation.org