Adopt spreadsheet changes made in Balas development

[simantics/platform.git] / bundles / org.simantics.spreadsheet / src / org / simantics / spreadsheet / ExternalRef.java

diff --git a/bundles/org.simantics.spreadsheet/src/org/simantics/spreadsheet/ExternalRef.java b/bundles/org.simantics.spreadsheet/src/org/simantics/spreadsheet/ExternalRef.java
new file mode 100644 (file)
index 0000000..327e5ae
--- /dev/null
+++ b/bundles/org.simantics.spreadsheet/src/org/simantics/spreadsheet/ExternalRef.java
@@ -0,0 +1,17 @@
+package org.simantics.spreadsheet;
+
+import org.simantics.databoard.binding.mutable.Variant;
+
+public interface ExternalRef {
+
+    public interface ExternalRefListener {
+
+        public void newValue(Variant value);
+        public boolean isDisposed();
+
+    }
+
+    public void listen(Object context, ExternalRefListener listener);
+    public void modify(Object context, Variant newValue);
+
+}