Mercurial > dive4elements > river

annotate flys-artifacts/src/main/java/de/intevation/flys/artifacts/states/DefaultState.java @ 1691:17648043429f

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Cosmetics, docs, annotations. flys-artifacts/trunk@2915 c6561f87-3c4e-4783-a992-168aeb5c3f6f
author Felix Wolfsteller <felix.wolfsteller@intevation.de>
date Mon, 10 Oct 2011 07:47:30 +0000
parents 1aba1a75beb2
children 8a2cbf947395
rev   line source
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b18aebd1342f Added an abstract base class DefaultState for States.
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1 package de.intevation.flys.artifacts.states;
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2
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3 import java.text.NumberFormat;
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4 import java.util.Iterator;
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5 import java.util.Locale;
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6 import java.util.Map;
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7 import java.util.List;
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8
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9 import org.apache.log4j.Logger;
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10
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11 import org.w3c.dom.Document;
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12 import org.w3c.dom.Element;
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13 import org.w3c.dom.Node;
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14
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35301cc3b875 Modified the states' describe() method - related to the last commit.
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15 import de.intevation.artifacts.Artifact;
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16 import de.intevation.artifacts.ArtifactNamespaceContext;
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17 import de.intevation.artifacts.CallContext;
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18 import de.intevation.artifacts.CallMeta;
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19
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20 import de.intevation.artifacts.common.utils.XMLUtils;
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21 import de.intevation.artifacts.common.utils.XMLUtils.ElementCreator;
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22
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23 import de.intevation.artifactdatabase.ProtocolUtils;
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24
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25 import de.intevation.artifactdatabase.data.DefaultStateData;
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26 import de.intevation.artifactdatabase.data.StateData;
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28 import de.intevation.artifactdatabase.state.AbstractState;
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29 import de.intevation.artifactdatabase.state.Facet;
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31 import de.intevation.flys.artifacts.FLYSArtifact;
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32
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33 import de.intevation.flys.artifacts.resources.Resources;
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34
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35
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36 /**
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37 * @author <a href="mailto:ingo.weinzierl@intevation.de">Ingo Weinzierl</a>
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38 */
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39 public abstract class DefaultState extends AbstractState {
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40
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41 /** The logger that is used in this class. */
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42 private static Logger logger = Logger.getLogger(DefaultState.class);
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43
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44 public static enum ComputeType {
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45 FEED, ADVANCE, INIT
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46 }
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47
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48 protected StateData getData(FLYSArtifact artifact, String name) {
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49 return artifact.getData(name);
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50 }
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51
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52
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53 /**
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54 * Append to a node and return xml description relevant for gui.
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55 */
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56 public Element describeStatic(
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57 Artifact artifact,
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58 Document document,
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59 Node root,
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60 CallContext context,
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61 String uuid)
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62 {
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63 ElementCreator creator = new ElementCreator(
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64 document,
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65 ArtifactNamespaceContext.NAMESPACE_URI,
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66 ArtifactNamespaceContext.NAMESPACE_PREFIX);
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67
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68 CallMeta meta = context.getMeta();
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69
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70 String label = Resources.getMsg(meta, getID(), getID());
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71 Element ui = ProtocolUtils.createArtNode(
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72 creator, "state",
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73 new String[] { "name", "uiprovider", "label" },
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74 new String[] { getID(), getUIProvider(), label });
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75
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76 Map<String, StateData> theData = getData();
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77 if (theData == null) {
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78 return ui;
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79 }
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80
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81 Iterator<String> iter = theData.keySet().iterator();
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82 FLYSArtifact flys = (FLYSArtifact) artifact;
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83
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84 while (iter.hasNext()) {
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85 String name = iter.next();
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86 appendStaticData(flys, context, creator, ui, name);
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87 }
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88
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89 return ui;
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90 }
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91
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92
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93 protected void appendStaticData(
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94 FLYSArtifact flys,
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95 CallContext context,
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96 ElementCreator cr,
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97 Element ui,
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98 String name
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99 ) {
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100 StateData data = getData(flys, name);
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101 String value = (data != null) ? (String) data.getValue() : null;
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102
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103 if (value == null) {
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104 return;
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105 }
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106
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107 logger.debug("Append element '" + name + "' (" + value + ")");
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108
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109 Element e = createStaticData(cr, context, name, value, data.getType());
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110
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111 ui.appendChild(e);
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112
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113 }
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116 /**
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117 * Creates a <i>data</i> element used in the static part of the DESCRIBE
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118 * document.
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119 *
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120 * @param creator The ElementCreator that is used to build new Elements.
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121 * @param meta The CallMeta object used for i18n.
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122 * @param name The name of the data item.
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123 * @param value The value as string.
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124 *
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125 * @return an Element.
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126 */
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127 protected Element createStaticData(
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128 ElementCreator creator,
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129 CallContext cc,
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130 String name,
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131 String value,
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132 String type
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133 ) {
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134 CallMeta meta = cc.getMeta();
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135
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136 Element dataElement = creator.create("data");
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137 creator.addAttr(dataElement, "name", name, true);
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138 creator.addAttr(dataElement, "type", type, true);
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139
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140 Element itemElement = creator.create("item");
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141 creator.addAttr(itemElement, "value", value, true);
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142
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143 String attrValue = "";
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144 try {
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145 // XXX A better way to format the output would be to use the
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146 // 'type' value of the data objects.
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147 double doubleVal = Double.valueOf(value);
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148 Locale l = Resources.getLocale(meta);
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149 NumberFormat nf = NumberFormat.getInstance(l);
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150
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151 attrValue = nf.format(doubleVal);
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152 }
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153 catch (NumberFormatException nfe) {
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154 attrValue = Resources.getMsg(meta, value, value);
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155 }
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156
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157 creator.addAttr(itemElement, "label", attrValue, true);
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158 dataElement.appendChild(itemElement);
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159
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160 return dataElement;
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161 }
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162
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163
126
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164 public Element describe(
306
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165 Artifact artifact,
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166 Document document,
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167 Node root,
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168 CallContext context,
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169 String uuid)
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170 {
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171 ElementCreator creator = new ElementCreator(
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172 document,
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173 ArtifactNamespaceContext.NAMESPACE_URI,
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174 ArtifactNamespaceContext.NAMESPACE_PREFIX);
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175
135
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176 Element ui = null;
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177 String uiprovider = getUIProvider();
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178 if (uiprovider != null) {
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179 ui = ProtocolUtils.createArtNode(
135
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180 creator, "dynamic",
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181 new String[] { "uiprovider" },
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182 new String[] { uiprovider });
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183 }
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184 else {
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185 ui = ProtocolUtils.createArtNode(creator, "dynamic", null, null);
135
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186 }
126
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187
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188 Map<String, StateData> theData = getData();
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189 if (theData == null) {
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190 return ui;
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191 }
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192
624
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193 Iterator<String> iter = theData.keySet().iterator();
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194 FLYSArtifact flys = (FLYSArtifact) artifact;
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195
624
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196 while (iter.hasNext()) {
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197 String name = iter.next();
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198 StateData data = getData(flys, name);
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199
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200 data = data != null ? data : getData(name);
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201
313
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202 Element select = createData(creator, artifact, data, context);
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203
630
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204 String defValue = (String) data.getValue();
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205 String defDesc = null;
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206
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207 if (defValue != null && defValue.length() > 0) {
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208 defDesc = Resources.getMsg(
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209 context.getMeta(),
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210 defValue,
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diff changeset
211 defValue);
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212 }
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213
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214 if (defValue != null && defDesc != null) {
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parents: 624
diff changeset
215 creator.addAttr(select, "defaultValue", defValue, true);
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216 creator.addAttr(select, "defaultLabel", defDesc, true);
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217 }
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218
126
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219 Element choices = ProtocolUtils.createArtNode(
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220 creator, "choices", null, null);
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221
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222 select.appendChild(choices);
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223 ui.appendChild(select);
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224
313
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diff changeset
225 Element[] items = createItems(creator, artifact, name, context);
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226 if (items != null) {
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227 for (Element item: items) {
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228 choices.appendChild(item);
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diff changeset
229 }
126
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230 }
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231 }
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232
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233 return ui;
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234 }
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235
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236
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237 /**
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238 * This method creates the root node that contains the list of selectable
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239 * items.
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240 *
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241 * @param cr The ElementCreator.
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242 * @param name The name of the amount of data.
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243 *
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244 * @return the root node of the item list.
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245 */
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246 protected Element createData(
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247 ElementCreator cr,
313
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248 Artifact artifact,
126
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249 StateData data,
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250 CallContext context)
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251 {
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252 Element select = ProtocolUtils.createArtNode(
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253 cr, "select", null, null);
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254 cr.addAttr(select, "name", data.getName(), true);
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255
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256 Element label = ProtocolUtils.createArtNode(
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257 cr, "label", null, null);
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258
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259 select.appendChild(label);
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260
126
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261 label.setTextContent(Resources.getMsg(
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262 context.getMeta(),
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263 getID(),
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264 getID()));
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265
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266 return select;
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267 }
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268
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269
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270 /**
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271 * This method creates a list of items. These items represent the amount of
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272 * input data that is possible for this state.
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273 *
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274 * @param cr The ElementCreator.
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275 * @param name The name of the amount of data.
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276 *
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277 * @return a list of items.
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278 */
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279 protected Element[] createItems(
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280 ElementCreator cr,
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281 Artifact artifact,
126
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282 String name,
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283 CallContext context
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284 ) {
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285 return null;
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286 }
135
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287
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288
322
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289 /**
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290 * This method is used to create an <i>item</i> Element that contains two
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291 * further elements <i>label</i> and <i>value</i>. The label and value
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292 * elements both have text nodes.
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293 *
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294 * @param cr The ElementCreator used to build new Elements.
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295 * @param obj This implementation awaits a String array with [0] = label and
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296 * [1] = value.
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297 *
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298 * @return an Element.
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299 */
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300 protected Element createItem(XMLUtils.ElementCreator cr, Object obj) {
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301 Element item = ProtocolUtils.createArtNode(cr, "item", null, null);
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302 Element label = ProtocolUtils.createArtNode(cr, "label", null, null);
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303 Element value = ProtocolUtils.createArtNode(cr, "value", null, null);
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304
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305 String[] arr = (String[]) obj;
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306
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307 label.setTextContent(arr[0]);
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308 value.setTextContent(arr[1]);
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309
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310 item.appendChild(label);
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311 item.appendChild(value);
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312
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313 return item;
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314 }
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315
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316
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317 /**
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318 * This method transform a given value into a StateData object.
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319 *
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320 * @param flys The FLYSArtifact.
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321 * @param name The name of the data object.
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322 * @param val The value of the data object.
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323 *
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324 * @return a StateData object with <i>name</i> and <i>val</i>ue.
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325 */
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326 public StateData transform(
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327 FLYSArtifact flys,
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328 CallContext cc,
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329 String name,
28154920e0b3 Introduced the possibility for States to transform/modify input before the data is added to FLYSArtifact.
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330 String val
28154920e0b3 Introduced the possibility for States to transform/modify input before the data is added to FLYSArtifact.
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331 ) {
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332 logger.debug("Transform data ('" + name + "','" + val + "')");
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333 return new DefaultStateData(name, null, null, val);
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334 }
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335
28154920e0b3 Introduced the possibility for States to transform/modify input before the data is added to FLYSArtifact.
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336
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337 /**
322
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338 * This method validates the inserted data and returns true, if everything
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339 * was correct, otherwise an exception is thrown.
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340 *
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341 * @param artifact A reference to the owner artifact.
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342 *
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343 * @return true, if everything was fine.
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344 */
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345 public boolean validate(Artifact artifact)
322
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346 throws IllegalArgumentException
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347 {
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348 return true;
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349 }
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350
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351
1691
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352 /**
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353 * Returns which UIProvider shall be used to aid user input.
17648043429f Cosmetics, docs, annotations.
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354 */
135
2d6e02787d00 Added a method to retrieve the UIProvider for a state.
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355 protected String getUIProvider() {
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356 return null;
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357 }
687
06689035024c Added a compute() method to WINFOArtifact which acts as a dispatcher for different computations. It triggers a calculation based on ComputeCallbacks that are generated by the current states.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
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358
1136
8da5f5a9ed3c Cosmetics, docs.
Felix Wolfsteller <felix.wolfsteller@intevation.de>
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359
697
b972eba2ed8a Removed ComputeCallback because this was thought too complicated. Fixed issue with facets not be re-generated if same state is entered again.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
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360 public Object computeAdvance(
b972eba2ed8a Removed ComputeCallback because this was thought too complicated. Fixed issue with facets not be re-generated if same state is entered again.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 687
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361 FLYSArtifact artifact,
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Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 687
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362 String hash,
742
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Sascha L. Teichmann <sascha.teichmann@intevation.de>
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363 CallContext context,
c09c9e05ecfa Removed trailing whitespace.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
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364 List<Facet> facets,
697
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Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 687
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365 Object old
b972eba2ed8a Removed ComputeCallback because this was thought too complicated. Fixed issue with facets not be re-generated if same state is entered again.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 687
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366 ) {
b972eba2ed8a Removed ComputeCallback because this was thought too complicated. Fixed issue with facets not be re-generated if same state is entered again.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 687
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367 return null;
b972eba2ed8a Removed ComputeCallback because this was thought too complicated. Fixed issue with facets not be re-generated if same state is entered again.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 687
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368 }
687
06689035024c Added a compute() method to WINFOArtifact which acts as a dispatcher for different computations. It triggers a calculation based on ComputeCallbacks that are generated by the current states.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 669
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369
1136
8da5f5a9ed3c Cosmetics, docs.
Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents: 1050
diff changeset
370
697
b972eba2ed8a Removed ComputeCallback because this was thought too complicated. Fixed issue with facets not be re-generated if same state is entered again.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
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371 public Object computeFeed(
b972eba2ed8a Removed ComputeCallback because this was thought too complicated. Fixed issue with facets not be re-generated if same state is entered again.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 687
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372 FLYSArtifact artifact,
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Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 687
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373 String hash,
b972eba2ed8a Removed ComputeCallback because this was thought too complicated. Fixed issue with facets not be re-generated if same state is entered again.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 687
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374 CallContext context,
742
c09c9e05ecfa Removed trailing whitespace.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 697
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375 List<Facet> facets,
697
b972eba2ed8a Removed ComputeCallback because this was thought too complicated. Fixed issue with facets not be re-generated if same state is entered again.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 687
diff changeset
376 Object old
b972eba2ed8a Removed ComputeCallback because this was thought too complicated. Fixed issue with facets not be re-generated if same state is entered again.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 687
diff changeset
377 ) {
687
06689035024c Added a compute() method to WINFOArtifact which acts as a dispatcher for different computations. It triggers a calculation based on ComputeCallbacks that are generated by the current states.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 669
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378 return null;
06689035024c Added a compute() method to WINFOArtifact which acts as a dispatcher for different computations. It triggers a calculation based on ComputeCallbacks that are generated by the current states.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 669
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379 }
941
1b509e4cf99b Added a computeInit() method to intialize data/facets after creating new artifacts.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 742
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380
1136
8da5f5a9ed3c Cosmetics, docs.
Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents: 1050
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381
941
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Ingo Weinzierl <ingo.weinzierl@intevation.de>
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382 public Object computeInit(
1b509e4cf99b Added a computeInit() method to intialize data/facets after creating new artifacts.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
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383 FLYSArtifact artifact,
1b509e4cf99b Added a computeInit() method to intialize data/facets after creating new artifacts.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 742
diff changeset
384 String hash,
958
ae198bef4ba0 Added configurations for river WMSe (currently for Saar, Mosel, Elbe).
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 942
diff changeset
385 Object context,
941
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Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 742
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386 CallMeta meta,
1b509e4cf99b Added a computeInit() method to intialize data/facets after creating new artifacts.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 742
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387 List<Facet> facets)
1b509e4cf99b Added a computeInit() method to intialize data/facets after creating new artifacts.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 742
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388 {
1b509e4cf99b Added a computeInit() method to intialize data/facets after creating new artifacts.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 742
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389 return null;
1b509e4cf99b Added a computeInit() method to intialize data/facets after creating new artifacts.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 742
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390 }
126
b18aebd1342f Added an abstract base class DefaultState for States.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
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391 }
b18aebd1342f Added an abstract base class DefaultState for States.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
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392 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf-8 :
http://dive4elements.wald.intevation.org