JAL-1372 JAL-1114 JAL-1628 tidy sequenceI/sequence

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

diff --git a/src/jalview/datamodel/SequenceI.java b/src/jalview/datamodel/SequenceI.java
index fc67efd..46669ae 100755 (executable)
--- a/src/jalview/datamodel/SequenceI.java
+++ b/src/jalview/datamodel/SequenceI.java
@@ -315,10 +315,22 @@ public interface SequenceI
 
   public SequenceI getDatasetSequence();
 
+  /**
+   * Returns a new array containing this sequence's annotations, or null.
+   */
   public AlignmentAnnotation[] getAnnotation();
 
+  /**
+   * Returns true if this sequence has the given annotation (by object
+   * identity).
+   */
   public boolean hasAnnotation(AlignmentAnnotation ann);
 
+  /**
+   * Add the given annotation, if not already added, and set its sequence ref to
+   * be this sequence. Does nothing if this sequence's annotations already
+   * include this annotation (by identical object reference).
+   */
   public void addAlignmentAnnotation(AlignmentAnnotation annotation);
 
   public void removeAlignmentAnnotation(AlignmentAnnotation annotation);
@@ -347,12 +359,11 @@ public interface SequenceI
   public AlignmentAnnotation[] getAnnotation(String label);
 
   /**
-   * Return a list of any annotations which match the given calcId (source) and
-   * label (type). Null values do not match.
+   * Returns a (possibly empty) list of any annotations that match on given
+   * calcId (source) and label (type). Null values do not match.
    * 
    * @param calcId
    * @param label
-   * @return
    */
   public List<AlignmentAnnotation> getAlignmentAnnotations(String calcId,
           String label);