#1702 add invisible flag to table definition and reject creating VP if table is invisible

Author: tanjjj

vuu/src/main/scala/org/finos/vuu/api/TableDef.scala

@@ -122,7 +122,8 @@ class TableDef(val name: String,
                val joinFields: Seq[String],
                val autosubscribe: Boolean = false,
                val links: VisualLinks = VisualLinks(),
-               val indices: Indices) extends VuuInMemPluginLocator {
+               val indices: Indices,
+               val invisible: Boolean = false) extends VuuInMemPluginLocator {
 
   private val createdTimeColumn: SimpleColumn = SimpleColumn(CreatedTimeColumnName, customColumns.length, DataType.fromString("long"))
   private val updatedTimeColumn: SimpleColumn = SimpleColumn(LastUpdatedTimeColumnName, customColumns.length + 1, DataType.fromString("long"))

vuu/src/main/scala/org/finos/vuu/core/CoreServerApiHandler.scala

@@ -315,7 +315,7 @@ class CoreServerApiHandler(val viewPortContainer: ViewPortContainer,
 
     val table = tableContainer.getTable(msg.table.table)
 
-    if (table == null)
+    if (table == null || table.getTableDef.invisible)
       errorMsg(s"no table found for ${msg.table}")(ctx)
     else {