JAL-653 allow a dummy sequence to take on attributes from a fully instantiated sequen...

[jalview.git] / src / jalview / datamodel / SequenceDummy.java

diff --git a/src/jalview/datamodel/SequenceDummy.java b/src/jalview/datamodel/SequenceDummy.java
index 80b0072..4a8c3ee 100644 (file)
--- a/src/jalview/datamodel/SequenceDummy.java
+++ b/src/jalview/datamodel/SequenceDummy.java
@@ -6,4 +6,27 @@ public class SequenceDummy extends Sequence implements SequenceI
   {
     super(sequenceId, "THISAPLACEHOLDER");
   }
+
+  private boolean dummy = true;
+  /**
+   * become a proxy for mseq, merging any existing annotation on this sequence
+   * 
+   * @param mseq
+   */
+  public void become(SequenceI mseq)
+  {
+    initSeqFrom(mseq, null);
+    dummy=false;
+  }
+
+  /**
+   * Test if the SequenceDummy has been promoted to a real sequence via
+   * SequenceDummy.become
+   * 
+   * @return true if this is a placeholder and contains no actual sequence data
+   */
+  public boolean isDummy()
+  {
+    return dummy;
+  }
 }