Migrated source code from Simantics SVN

[simantics/platform.git] / bundles / org.simantics.datatypes / src / org / simantics / datatypes / utils / PossibleResource.java

diff --git a/bundles/org.simantics.datatypes/src/org/simantics/datatypes/utils/PossibleResource.java b/bundles/org.simantics.datatypes/src/org/simantics/datatypes/utils/PossibleResource.java
new file mode 100644 (file)
index 0000000..c7a4216
--- /dev/null
+++ b/bundles/org.simantics.datatypes/src/org/simantics/datatypes/utils/PossibleResource.java
@@ -0,0 +1,24 @@
+package org.simantics.datatypes.utils;\r
+\r
+import org.simantics.databoard.annotations.Optional;\r
+import org.simantics.db.Resource;\r
+import org.simantics.db.exception.DatabaseException;\r
+import org.simantics.db.service.SerialisationSupport;\r
+\r
+final class PossibleResource {\r
+       \r
+       @Optional\r
+       public Resource r;\r
+       \r
+       public long longValue() {\r
+               if(r == null) return 0L;\r
+               return r.getResourceId();\r
+       }\r
+\r
+       public static PossibleResource read(SerialisationSupport ss, long l) throws DatabaseException {\r
+               PossibleResource pr = new PossibleResource();\r
+               if(l != 0) pr.r = ss.getResource(l); \r
+               return pr;\r
+       }\r
+       \r
+}
\ No newline at end of file