JAL-653 abstract sequence model to support file backed alignment/data views

diff --git a/src/jalview/datamodel/ASequence.java b/src/jalview/datamodel/ASequence.java
new file mode 100755 (executable)
index 0000000..238fd38
--- /dev/null
+++ b/src/jalview/datamodel/ASequence.java
@@ -0,0 +1,16 @@
+/**
+ * 
+ */
+package jalview.datamodel;
+
+/**
+ * Metadata for a sequence that may or may not be physically present in Jalview
+ * at the moment
+ * 
+ * @author jprocter
+ *
+ */
+public class ASequence implements ASequenceI
+{
+
+}

diff --git a/src/jalview/datamodel/ASequenceI.java b/src/jalview/datamodel/ASequenceI.java
new file mode 100755 (executable)
index 0000000..481b1e3
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+++ b/src/jalview/datamodel/ASequenceI.java
@@ -0,0 +1,12 @@
+package jalview.datamodel;
+
+/**
+ * interfaces to access the basic metadata for a concrete or virtual sequence
+ * 
+ * @author jprocter
+ *
+ */
+public interface ASequenceI
+{
+
+}