bundles/org.simantics.document.linking.ontology/src/org/simantics/document/linking/ontology/DocumentLink.java

   1 package org.simantics.document.linking.ontology;\r
   2 \r
   3 import org.simantics.db.RequestProcessor;\r
   4 import org.simantics.db.Resource;\r
   5 import org.simantics.db.ReadGraph;\r
   6 import org.simantics.db.request.Read;\r
   7 import org.simantics.db.Session;\r
   8 import org.simantics.db.exception.DatabaseException;\r
   9 import org.simantics.db.service.QueryControl;\r
  10 \r
  11 public class DocumentLink {\r
  12     \r
  13     public final Resource EvaluatorTree;\r
  14     public final Resource EvaluatorTree_AligmentHint;\r
  15     public final Resource EvaluatorTree_And;\r
  16     public final Resource EvaluatorTree_Constant;\r
  17     public final Resource EvaluatorTree_Date;\r
  18     public final Resource EvaluatorTree_HasValue;\r
  19     public final Resource EvaluatorTree_HasValue_Inverse;\r
  20     public final Resource EvaluatorTree_If;\r
  21     public final Resource EvaluatorTree_Lines;\r
  22     public final Resource EvaluatorTree_Node;\r
  23     public final Resource EvaluatorTree_Or;\r
  24     public final Resource EvaluatorTree_Path;\r
  25     public final Resource EvaluatorTree_Root;\r
  26     public final Resource EvaluatorTree_Template;\r
  27     public final Resource EvaluatorTree_TextSizeHint;\r
  28     public final Resource EvaluatorTree_Variable;\r
  29     public final Resource FunctionalSource;\r
  30     public final Resource InstanceSource;\r
  31     public final Resource ModelViewpointActionContext;\r
  32     public final Resource ModelViewpointBrowseContext;\r
  33     public final Resource ModelViewpointBrowseContext2;\r
  34     public final Resource ModelViewpointBrowseContext2_ChildRule;\r
  35     public final Resource ModelViewpointBrowseContext_ChildRule;\r
  36     public final Resource ReportTemplate;\r
  37     public final Resource SearchContribution;\r
  38     public final Resource SearchFunction;\r
  39     public final Resource Source;\r
  40     public final Resource SourceObjectViewpointActionContext;\r
  41     public final Resource SourceObjectViewpointActionContext_Category;\r
  42     public final Resource SourceObjectViewpointBrowseContext;\r
  43     public final Resource SourceObjectViewpointBrowseContext_ChildRule;\r
  44     public final Resource SourcePropertyViewpointActionContext;\r
  45     public final Resource SourcePropertyViewpointActionContext_Category;\r
  46     public final Resource SourcePropertyViewpointActionContext_FixAll;\r
  47     public final Resource SourcePropertyViewpointActionContext_FixAllReferences;\r
  48     public final Resource SourcePropertyViewpointActionContext_Open;\r
  49     public final Resource SourcePropertyViewpointActionContext_OpenWith;\r
  50     public final Resource SourcePropertyViewpointActionContext_Remove;\r
  51     public final Resource SourcePropertyViewpointActionContext_RemoveSource;\r
  52     public final Resource SourcePropertyViewpointActionContext_Replace;\r
  53     public final Resource SourcePropertyViewpointActionContext_ReplaceWithLatest;\r
  54     public final Resource SourcePropertyViewpointActionContext_ShowDocument;\r
  55     public final Resource SourcePropertyViewpointActionContext_ShowDocumentExternal;\r
  56     public final Resource SourcePropertyViewpointActionContext_SourceObjectDropAction;\r
  57     public final Resource SourcePropertyViewpointActionContext_SourceReferenceOldTest;\r
  58     public final Resource SourcePropertyViewpointActionContext_VariableInstanceTest;\r
  59     public final Resource SourcePropertyViewpointBrowseContext;\r
  60     public final Resource SourcePropertyViewpointBrowseContext_ChildRule;\r
  61     public final Resource SourcePropertyViewpointBrowseContext_Variable;\r
  62     public final Resource SourcePropertyViewpointBrowseContext_VariableImageDecorationRule;\r
  63     public final Resource SourcePropertyViewpointBrowseContext_VariableImageRule;\r
  64     public final Resource SourcePropertyViewpointBrowseContext_VariableLabelRule;\r
  65     public final Resource SourcePropertyViewpointBrowseContext_VariableModifierRule;\r
  66     public final Resource consernsRelation;\r
  67     public final Resource hasFunctionalSource;\r
  68     public final Resource hasFunctionalSource_Inverse;\r
  69     public final Resource hasInstanceSource;\r
  70     public final Resource hasInstanceSource_Inverse;\r
  71     public final Resource hasSource;\r
  72     public final Resource hasSourceComment;\r
  73     public final Resource hasSourceComment_Inverse;\r
  74     public final Resource hasSourceReference;\r
  75     public final Resource hasSourceReferenceURI;\r
  76     public final Resource hasSourceReferenceURI_Inverse;\r
  77     public final Resource hasSource_Inverse;\r
  78         \r
  79     public static class URIs {\r
  80         public static final String EvaluatorTree = "http://www.simantics.org/DocumentLink-1.0/EvaluatorTree";\r
  81         public static final String EvaluatorTree_AligmentHint = "http://www.simantics.org/DocumentLink-1.0/EvaluatorTree/AligmentHint";\r
  82         public static final String EvaluatorTree_And = "http://www.simantics.org/DocumentLink-1.0/EvaluatorTree/And";\r
  83         public static final String EvaluatorTree_Constant = "http://www.simantics.org/DocumentLink-1.0/EvaluatorTree/Constant";\r
  84         public static final String EvaluatorTree_Date = "http://www.simantics.org/DocumentLink-1.0/EvaluatorTree/Date";\r
  85         public static final String EvaluatorTree_HasValue = "http://www.simantics.org/DocumentLink-1.0/EvaluatorTree/HasValue";\r
  86         public static final String EvaluatorTree_HasValue_Inverse = "http://www.simantics.org/DocumentLink-1.0/EvaluatorTree/HasValue/Inverse";\r
  87         public static final String EvaluatorTree_If = "http://www.simantics.org/DocumentLink-1.0/EvaluatorTree/If";\r
  88         public static final String EvaluatorTree_Lines = "http://www.simantics.org/DocumentLink-1.0/EvaluatorTree/Lines";\r
  89         public static final String EvaluatorTree_Node = "http://www.simantics.org/DocumentLink-1.0/EvaluatorTree/Node";\r
  90         public static final String EvaluatorTree_Or = "http://www.simantics.org/DocumentLink-1.0/EvaluatorTree/Or";\r
  91         public static final String EvaluatorTree_Path = "http://www.simantics.org/DocumentLink-1.0/EvaluatorTree/Path";\r
  92         public static final String EvaluatorTree_Root = "http://www.simantics.org/DocumentLink-1.0/EvaluatorTree/Root";\r
  93         public static final String EvaluatorTree_Template = "http://www.simantics.org/DocumentLink-1.0/EvaluatorTree/Template";\r
  94         public static final String EvaluatorTree_TextSizeHint = "http://www.simantics.org/DocumentLink-1.0/EvaluatorTree/TextSizeHint";\r
  95         public static final String EvaluatorTree_Variable = "http://www.simantics.org/DocumentLink-1.0/EvaluatorTree/Variable";\r
  96         public static final String FunctionalSource = "http://www.simantics.org/DocumentLink-1.0/FunctionalSource";\r
  97         public static final String InstanceSource = "http://www.simantics.org/DocumentLink-1.0/InstanceSource";\r
  98         public static final String ModelViewpointActionContext = "http://www.simantics.org/DocumentLink-1.0/ModelViewpointActionContext";\r
  99         public static final String ModelViewpointBrowseContext = "http://www.simantics.org/DocumentLink-1.0/ModelViewpointBrowseContext";\r
 100         public static final String ModelViewpointBrowseContext2 = "http://www.simantics.org/DocumentLink-1.0/ModelViewpointBrowseContext2";\r
 101         public static final String ModelViewpointBrowseContext2_ChildRule = "http://www.simantics.org/DocumentLink-1.0/ModelViewpointBrowseContext2/ChildRule";\r
 102         public static final String ModelViewpointBrowseContext_ChildRule = "http://www.simantics.org/DocumentLink-1.0/ModelViewpointBrowseContext/ChildRule";\r
 103         public static final String ReportTemplate = "http://www.simantics.org/DocumentLink-1.0/ReportTemplate";\r
 104         public static final String SearchContribution = "http://www.simantics.org/DocumentLink-1.0/SearchContribution";\r
 105         public static final String SearchFunction = "http://www.simantics.org/DocumentLink-1.0/SearchFunction";\r
 106         public static final String Source = "http://www.simantics.org/DocumentLink-1.0/Source";\r
 107         public static final String SourceObjectViewpointActionContext = "http://www.simantics.org/DocumentLink-1.0/SourceObjectViewpointActionContext";\r
 108         public static final String SourceObjectViewpointActionContext_Category = "http://www.simantics.org/DocumentLink-1.0/SourceObjectViewpointActionContext/Category";\r
 109         public static final String SourceObjectViewpointBrowseContext = "http://www.simantics.org/DocumentLink-1.0/SourceObjectViewpointBrowseContext";\r
 110         public static final String SourceObjectViewpointBrowseContext_ChildRule = "http://www.simantics.org/DocumentLink-1.0/SourceObjectViewpointBrowseContext/ChildRule";\r
 111         public static final String SourcePropertyViewpointActionContext = "http://www.simantics.org/DocumentLink-1.0/SourcePropertyViewpointActionContext";\r
 112         public static final String SourcePropertyViewpointActionContext_Category = "http://www.simantics.org/DocumentLink-1.0/SourcePropertyViewpointActionContext/Category";\r
 113         public static final String SourcePropertyViewpointActionContext_FixAll = "http://www.simantics.org/DocumentLink-1.0/SourcePropertyViewpointActionContext/FixAll";\r
 114         public static final String SourcePropertyViewpointActionContext_FixAllReferences = "http://www.simantics.org/DocumentLink-1.0/SourcePropertyViewpointActionContext/FixAllReferences";\r
 115         public static final String SourcePropertyViewpointActionContext_Open = "http://www.simantics.org/DocumentLink-1.0/SourcePropertyViewpointActionContext/Open";\r
 116         public static final String SourcePropertyViewpointActionContext_OpenWith = "http://www.simantics.org/DocumentLink-1.0/SourcePropertyViewpointActionContext/OpenWith";\r
 117         public static final String SourcePropertyViewpointActionContext_Remove = "http://www.simantics.org/DocumentLink-1.0/SourcePropertyViewpointActionContext/Remove";\r
 118         public static final String SourcePropertyViewpointActionContext_RemoveSource = "http://www.simantics.org/DocumentLink-1.0/SourcePropertyViewpointActionContext/RemoveSource";\r
 119         public static final String SourcePropertyViewpointActionContext_Replace = "http://www.simantics.org/DocumentLink-1.0/SourcePropertyViewpointActionContext/Replace";\r
 120         public static final String SourcePropertyViewpointActionContext_ReplaceWithLatest = "http://www.simantics.org/DocumentLink-1.0/SourcePropertyViewpointActionContext/ReplaceWithLatest";\r
 121         public static final String SourcePropertyViewpointActionContext_ShowDocument = "http://www.simantics.org/DocumentLink-1.0/SourcePropertyViewpointActionContext/ShowDocument";\r
 122         public static final String SourcePropertyViewpointActionContext_ShowDocumentExternal = "http://www.simantics.org/DocumentLink-1.0/SourcePropertyViewpointActionContext/ShowDocumentExternal";\r
 123         public static final String SourcePropertyViewpointActionContext_SourceObjectDropAction = "http://www.simantics.org/DocumentLink-1.0/SourcePropertyViewpointActionContext/SourceObjectDropAction";\r
 124         public static final String SourcePropertyViewpointActionContext_SourceReferenceOldTest = "http://www.simantics.org/DocumentLink-1.0/SourcePropertyViewpointActionContext/SourceReferenceOldTest";\r
 125         public static final String SourcePropertyViewpointActionContext_VariableInstanceTest = "http://www.simantics.org/DocumentLink-1.0/SourcePropertyViewpointActionContext/VariableInstanceTest";\r
 126         public static final String SourcePropertyViewpointBrowseContext = "http://www.simantics.org/DocumentLink-1.0/SourcePropertyViewpointBrowseContext";\r
 127         public static final String SourcePropertyViewpointBrowseContext_ChildRule = "http://www.simantics.org/DocumentLink-1.0/SourcePropertyViewpointBrowseContext/ChildRule";\r
 128         public static final String SourcePropertyViewpointBrowseContext_Variable = "http://www.simantics.org/DocumentLink-1.0/SourcePropertyViewpointBrowseContext/Variable";\r
 129         public static final String SourcePropertyViewpointBrowseContext_VariableImageDecorationRule = "http://www.simantics.org/DocumentLink-1.0/SourcePropertyViewpointBrowseContext/VariableImageDecorationRule";\r
 130         public static final String SourcePropertyViewpointBrowseContext_VariableImageRule = "http://www.simantics.org/DocumentLink-1.0/SourcePropertyViewpointBrowseContext/VariableImageRule";\r
 131         public static final String SourcePropertyViewpointBrowseContext_VariableLabelRule = "http://www.simantics.org/DocumentLink-1.0/SourcePropertyViewpointBrowseContext/VariableLabelRule";\r
 132         public static final String SourcePropertyViewpointBrowseContext_VariableModifierRule = "http://www.simantics.org/DocumentLink-1.0/SourcePropertyViewpointBrowseContext/VariableModifierRule";\r
 133         public static final String consernsRelation = "http://www.simantics.org/DocumentLink-1.0/consernsRelation";\r
 134         public static final String hasFunctionalSource = "http://www.simantics.org/DocumentLink-1.0/hasFunctionalSource";\r
 135         public static final String hasFunctionalSource_Inverse = "http://www.simantics.org/DocumentLink-1.0/hasFunctionalSource/Inverse";\r
 136         public static final String hasInstanceSource = "http://www.simantics.org/DocumentLink-1.0/hasInstanceSource";\r
 137         public static final String hasInstanceSource_Inverse = "http://www.simantics.org/DocumentLink-1.0/hasInstanceSource/Inverse";\r
 138         public static final String hasSource = "http://www.simantics.org/DocumentLink-1.0/hasSource";\r
 139         public static final String hasSourceComment = "http://www.simantics.org/DocumentLink-1.0/hasSourceComment";\r
 140         public static final String hasSourceComment_Inverse = "http://www.simantics.org/DocumentLink-1.0/hasSourceComment/Inverse";\r
 141         public static final String hasSourceReference = "http://www.simantics.org/DocumentLink-1.0/hasSourceReference";\r
 142         public static final String hasSourceReferenceURI = "http://www.simantics.org/DocumentLink-1.0/hasSourceReferenceURI";\r
 143         public static final String hasSourceReferenceURI_Inverse = "http://www.simantics.org/DocumentLink-1.0/hasSourceReferenceURI/Inverse";\r
 144         public static final String hasSource_Inverse = "http://www.simantics.org/DocumentLink-1.0/hasSource/Inverse";\r
 145     }\r
 146     \r
 147     public static Resource getResourceOrNull(ReadGraph graph, String uri) {\r
 148         try {\r
 149             return graph.getResource(uri);\r
 150         } catch(DatabaseException e) {\r
 151             System.err.println(e.getMessage());\r
 152             return null;\r
 153         }\r
 154     }\r
 155     \r
 156     public DocumentLink(ReadGraph graph) {\r
 157         EvaluatorTree = getResourceOrNull(graph, URIs.EvaluatorTree);\r
 158         EvaluatorTree_AligmentHint = getResourceOrNull(graph, URIs.EvaluatorTree_AligmentHint);\r
 159         EvaluatorTree_And = getResourceOrNull(graph, URIs.EvaluatorTree_And);\r
 160         EvaluatorTree_Constant = getResourceOrNull(graph, URIs.EvaluatorTree_Constant);\r
 161         EvaluatorTree_Date = getResourceOrNull(graph, URIs.EvaluatorTree_Date);\r
 162         EvaluatorTree_HasValue = getResourceOrNull(graph, URIs.EvaluatorTree_HasValue);\r
 163         EvaluatorTree_HasValue_Inverse = getResourceOrNull(graph, URIs.EvaluatorTree_HasValue_Inverse);\r
 164         EvaluatorTree_If = getResourceOrNull(graph, URIs.EvaluatorTree_If);\r
 165         EvaluatorTree_Lines = getResourceOrNull(graph, URIs.EvaluatorTree_Lines);\r
 166         EvaluatorTree_Node = getResourceOrNull(graph, URIs.EvaluatorTree_Node);\r
 167         EvaluatorTree_Or = getResourceOrNull(graph, URIs.EvaluatorTree_Or);\r
 168         EvaluatorTree_Path = getResourceOrNull(graph, URIs.EvaluatorTree_Path);\r
 169         EvaluatorTree_Root = getResourceOrNull(graph, URIs.EvaluatorTree_Root);\r
 170         EvaluatorTree_Template = getResourceOrNull(graph, URIs.EvaluatorTree_Template);\r
 171         EvaluatorTree_TextSizeHint = getResourceOrNull(graph, URIs.EvaluatorTree_TextSizeHint);\r
 172         EvaluatorTree_Variable = getResourceOrNull(graph, URIs.EvaluatorTree_Variable);\r
 173         FunctionalSource = getResourceOrNull(graph, URIs.FunctionalSource);\r
 174         InstanceSource = getResourceOrNull(graph, URIs.InstanceSource);\r
 175         ModelViewpointActionContext = getResourceOrNull(graph, URIs.ModelViewpointActionContext);\r
 176         ModelViewpointBrowseContext = getResourceOrNull(graph, URIs.ModelViewpointBrowseContext);\r
 177         ModelViewpointBrowseContext2 = getResourceOrNull(graph, URIs.ModelViewpointBrowseContext2);\r
 178         ModelViewpointBrowseContext2_ChildRule = getResourceOrNull(graph, URIs.ModelViewpointBrowseContext2_ChildRule);\r
 179         ModelViewpointBrowseContext_ChildRule = getResourceOrNull(graph, URIs.ModelViewpointBrowseContext_ChildRule);\r
 180         ReportTemplate = getResourceOrNull(graph, URIs.ReportTemplate);\r
 181         SearchContribution = getResourceOrNull(graph, URIs.SearchContribution);\r
 182         SearchFunction = getResourceOrNull(graph, URIs.SearchFunction);\r
 183         Source = getResourceOrNull(graph, URIs.Source);\r
 184         SourceObjectViewpointActionContext = getResourceOrNull(graph, URIs.SourceObjectViewpointActionContext);\r
 185         SourceObjectViewpointActionContext_Category = getResourceOrNull(graph, URIs.SourceObjectViewpointActionContext_Category);\r
 186         SourceObjectViewpointBrowseContext = getResourceOrNull(graph, URIs.SourceObjectViewpointBrowseContext);\r
 187         SourceObjectViewpointBrowseContext_ChildRule = getResourceOrNull(graph, URIs.SourceObjectViewpointBrowseContext_ChildRule);\r
 188         SourcePropertyViewpointActionContext = getResourceOrNull(graph, URIs.SourcePropertyViewpointActionContext);\r
 189         SourcePropertyViewpointActionContext_Category = getResourceOrNull(graph, URIs.SourcePropertyViewpointActionContext_Category);\r
 190         SourcePropertyViewpointActionContext_FixAll = getResourceOrNull(graph, URIs.SourcePropertyViewpointActionContext_FixAll);\r
 191         SourcePropertyViewpointActionContext_FixAllReferences = getResourceOrNull(graph, URIs.SourcePropertyViewpointActionContext_FixAllReferences);\r
 192         SourcePropertyViewpointActionContext_Open = getResourceOrNull(graph, URIs.SourcePropertyViewpointActionContext_Open);\r
 193         SourcePropertyViewpointActionContext_OpenWith = getResourceOrNull(graph, URIs.SourcePropertyViewpointActionContext_OpenWith);\r
 194         SourcePropertyViewpointActionContext_Remove = getResourceOrNull(graph, URIs.SourcePropertyViewpointActionContext_Remove);\r
 195         SourcePropertyViewpointActionContext_RemoveSource = getResourceOrNull(graph, URIs.SourcePropertyViewpointActionContext_RemoveSource);\r
 196         SourcePropertyViewpointActionContext_Replace = getResourceOrNull(graph, URIs.SourcePropertyViewpointActionContext_Replace);\r
 197         SourcePropertyViewpointActionContext_ReplaceWithLatest = getResourceOrNull(graph, URIs.SourcePropertyViewpointActionContext_ReplaceWithLatest);\r
 198         SourcePropertyViewpointActionContext_ShowDocument = getResourceOrNull(graph, URIs.SourcePropertyViewpointActionContext_ShowDocument);\r
 199         SourcePropertyViewpointActionContext_ShowDocumentExternal = getResourceOrNull(graph, URIs.SourcePropertyViewpointActionContext_ShowDocumentExternal);\r
 200         SourcePropertyViewpointActionContext_SourceObjectDropAction = getResourceOrNull(graph, URIs.SourcePropertyViewpointActionContext_SourceObjectDropAction);\r
 201         SourcePropertyViewpointActionContext_SourceReferenceOldTest = getResourceOrNull(graph, URIs.SourcePropertyViewpointActionContext_SourceReferenceOldTest);\r
 202         SourcePropertyViewpointActionContext_VariableInstanceTest = getResourceOrNull(graph, URIs.SourcePropertyViewpointActionContext_VariableInstanceTest);\r
 203         SourcePropertyViewpointBrowseContext = getResourceOrNull(graph, URIs.SourcePropertyViewpointBrowseContext);\r
 204         SourcePropertyViewpointBrowseContext_ChildRule = getResourceOrNull(graph, URIs.SourcePropertyViewpointBrowseContext_ChildRule);\r
 205         SourcePropertyViewpointBrowseContext_Variable = getResourceOrNull(graph, URIs.SourcePropertyViewpointBrowseContext_Variable);\r
 206         SourcePropertyViewpointBrowseContext_VariableImageDecorationRule = getResourceOrNull(graph, URIs.SourcePropertyViewpointBrowseContext_VariableImageDecorationRule);\r
 207         SourcePropertyViewpointBrowseContext_VariableImageRule = getResourceOrNull(graph, URIs.SourcePropertyViewpointBrowseContext_VariableImageRule);\r
 208         SourcePropertyViewpointBrowseContext_VariableLabelRule = getResourceOrNull(graph, URIs.SourcePropertyViewpointBrowseContext_VariableLabelRule);\r
 209         SourcePropertyViewpointBrowseContext_VariableModifierRule = getResourceOrNull(graph, URIs.SourcePropertyViewpointBrowseContext_VariableModifierRule);\r
 210         consernsRelation = getResourceOrNull(graph, URIs.consernsRelation);\r
 211         hasFunctionalSource = getResourceOrNull(graph, URIs.hasFunctionalSource);\r
 212         hasFunctionalSource_Inverse = getResourceOrNull(graph, URIs.hasFunctionalSource_Inverse);\r
 213         hasInstanceSource = getResourceOrNull(graph, URIs.hasInstanceSource);\r
 214         hasInstanceSource_Inverse = getResourceOrNull(graph, URIs.hasInstanceSource_Inverse);\r
 215         hasSource = getResourceOrNull(graph, URIs.hasSource);\r
 216         hasSourceComment = getResourceOrNull(graph, URIs.hasSourceComment);\r
 217         hasSourceComment_Inverse = getResourceOrNull(graph, URIs.hasSourceComment_Inverse);\r
 218         hasSourceReference = getResourceOrNull(graph, URIs.hasSourceReference);\r
 219         hasSourceReferenceURI = getResourceOrNull(graph, URIs.hasSourceReferenceURI);\r
 220         hasSourceReferenceURI_Inverse = getResourceOrNull(graph, URIs.hasSourceReferenceURI_Inverse);\r
 221         hasSource_Inverse = getResourceOrNull(graph, URIs.hasSource_Inverse);\r
 222     }\r
 223     \r
 224     public static DocumentLink getInstance(ReadGraph graph) {\r
 225         Session session = graph.getSession();\r
 226         DocumentLink ret = session.peekService(DocumentLink.class);\r
 227         if(ret == null) {\r
 228             QueryControl qc = graph.getService(QueryControl.class);\r
 229             ret = new DocumentLink(qc.getIndependentGraph(graph));\r
 230             session.registerService(DocumentLink.class, ret);\r
 231         }\r
 232         return ret;\r
 233     }\r
 234     \r
 235     public static DocumentLink getInstance(RequestProcessor session) throws DatabaseException {\r
 236         DocumentLink ret = session.peekService(DocumentLink.class);\r
 237         if(ret == null) {\r
 238             ret = session.syncRequest(new Read<DocumentLink>() {\r
 239                 public DocumentLink perform(ReadGraph graph) throws DatabaseException {\r
 240                     QueryControl qc = graph.getService(QueryControl.class);\r
 241                     return new DocumentLink(qc.getIndependentGraph(graph));\r
 242                 }\r
 243             });\r
 244             session.registerService(DocumentLink.class, ret);\r
 245         }\r
 246         return ret;\r
 247     }\r
 248     \r
 249 }\r
 250 \r