Migrated source code from Simantics SVN

[simantics/platform.git] / bundles / org.simantics.db.layer0 / src / org / simantics / db / layer0 / variable / VariableBean.java

diff --git a/bundles/org.simantics.db.layer0/src/org/simantics/db/layer0/variable/VariableBean.java b/bundles/org.simantics.db.layer0/src/org/simantics/db/layer0/variable/VariableBean.java
new file mode 100644 (file)
index 0000000..fc772ea
--- /dev/null
+++ b/bundles/org.simantics.db.layer0/src/org/simantics/db/layer0/variable/VariableBean.java
@@ -0,0 +1,47 @@
+package org.simantics.db.layer0.variable;\r
+\r
+import org.simantics.databoard.util.Bean;\r
+import org.simantics.db.ReadGraph;\r
+import org.simantics.db.Resource;\r
+import org.simantics.db.exception.DatabaseException;\r
+import org.simantics.db.service.SerialisationSupport;\r
+\r
+public class VariableBean extends Bean {\r
+\r
+       final public long context;\r
+       final public String rvi;\r
+       final transient public Variable variable;\r
+       \r
+       public VariableBean(ReadGraph graph, Variable variable) throws DatabaseException {\r
+               \r
+               Variable context = Variables.getPossibleContext(graph, variable);\r
+               if(context != null) {\r
+                       RVI rvi = variable.getRVI(graph);\r
+                       Resource contextResource = context.getRepresents(graph);\r
+                       this.context = contextResource.getResourceId();\r
+                       this.rvi = rvi.toString();\r
+               } else {\r
+                       this.context = 0;\r
+                       this.rvi = variable.getURI(graph);\r
+               }\r
+\r
+               this.variable = variable;\r
+\r
+       }\r
+       \r
+       public Variable getVariable(ReadGraph graph) throws DatabaseException {\r
+               if(context != 0) {\r
+                       Resource contextResource = graph.getService(SerialisationSupport.class).getResource(context);\r
+                       Variable context = Variables.getVariable(graph, contextResource);\r
+                       RVI rvi = RVI.fromResourceFormat(graph, this.rvi);\r
+                       return rvi.resolve(graph, context);\r
+               } else {\r
+                       return Variables.getVariable(graph, rvi);\r
+               }\r
+       }\r
+       \r
+       public Variable getVariable() {\r
+               return variable;\r
+       }\r
+       \r
+}\r