3D framework (Simca 2012)

[simantics/3d.git] / org.simantics.objmap2 / src / org / simantics / objmap / graph / schema / AdaptedLinkType.java

diff --git a/org.simantics.objmap2/src/org/simantics/objmap/graph/schema/AdaptedLinkType.java b/org.simantics.objmap2/src/org/simantics/objmap/graph/schema/AdaptedLinkType.java
new file mode 100644 (file)
index 0000000..c75c5ed
--- /dev/null
+++ b/org.simantics.objmap2/src/org/simantics/objmap/graph/schema/AdaptedLinkType.java
@@ -0,0 +1,75 @@
+package org.simantics.objmap.graph.schema;\r
+\r
+//import org.apache.log4j.Logger;\r
+import org.eclipse.core.runtime.IAdaptable;\r
+import org.simantics.db.ReadGraph;\r
+import org.simantics.db.Resource;\r
+import org.simantics.db.WriteGraph;\r
+import org.simantics.db.exception.DatabaseException;\r
+\r
+import org.simantics.objmap.backward.IBackwardMapping;\r
+import org.simantics.objmap.exceptions.MappingException;\r
+import org.simantics.objmap.forward.IForwardMapping;\r
+\r
+/**\r
+ * A link type that is associated with adaptable resource (ReadGraph.getAdapter(Resource,Class)). \r
+ * The adapted object must implement IAdaptable interface for returning the original Resource. \r
+ * \r
+ * @author Marko Luukkainen <marko.luukkainen@vtt.fi>\r
+ *\r
+ */\r
+public class AdaptedLinkType<Range> implements ILinkType<Resource,Range> {\r
+\r
+       \r
+       //static Logger LOGGER = Logger.getLogger("org.simantics.objmap");\r
+    \r
+    Resource domainType;\r
+    Class<?> rangeType;\r
+    \r
+    \r
+    public AdaptedLinkType(Resource domainType, Class<?> rangeType) {\r
+        this.domainType = domainType;\r
+        this.rangeType = rangeType;\r
+    }\r
+    \r
+    @Override\r
+    public Resource createDomainElement(WriteGraph g, Range rangeElement)\r
+               throws MappingException {\r
+       try {\r
+               IAdaptable adaptable = (IAdaptable)rangeElement;\r
+               Resource res = (Resource)adaptable.getAdapter(Resource.class);\r
+               if (res == null)\r
+                       throw new NullPointerException();\r
+               return res;\r
+       } catch (Exception e) {\r
+               throw new MappingException("Adapted object must implement IAdaptable interface to return the source Resource.", e);\r
+       }\r
+       \r
+    }\r
+    \r
+    @Override\r
+    public Range createRangeElement(ReadGraph g, Resource domainElement)\r
+               throws MappingException {\r
+       try {\r
+               return (Range)g.adapt(domainElement, rangeType);\r
+       } catch (DatabaseException e) {\r
+               throw new MappingException(e);\r
+       }\r
+    }\r
+    \r
+    public void createDomain(WriteGraph graph, IBackwardMapping<Resource,Range> mapping, Resource domainElement, Range rangeElement) throws MappingException {\r
+       \r
+    };\r
+    \r
+    public void createRange(ReadGraph graph, org.simantics.objmap.forward.IForwardMapping<Resource,Range> mapping, Resource domainElement, Range rangeElement) throws MappingException {\r
+       \r
+    };\r
+    \r
+    public boolean updateDomain(WriteGraph g, IBackwardMapping<Resource,Range> map, Resource domainElement, Range rangeElement) throws MappingException {\r
+       return false;\r
+    }\r
+    \r
+    public boolean updateRange(ReadGraph g, IForwardMapping<Resource,Range> map, Resource domainElement, Range rangeElement) throws MappingException {\r
+       return false;\r
+    }\r
+}\r