X-Git-Url: http://source.jalview.org/gitweb/?a=blobdiff_plain;f=src%2Fjalview%2Fapi%2FFeaturesDisplayedI.java;h=e69785fb5b54cec176516ee9006f862e0f9e7968;hb=456e5c765ac1e85336fd9f9b1a35453069bb2298;hp=bda13604c806fc2a99a2118b554ae5bcc9ee4f11;hpb=db4eacee27b836db4126dca551887bfc6652d72a;p=jalview.git

diff --git a/src/jalview/api/FeaturesDisplayedI.java b/src/jalview/api/FeaturesDisplayedI.java
index bda1360..e69785f 100644
--- a/src/jalview/api/FeaturesDisplayedI.java
+++ b/src/jalview/api/FeaturesDisplayedI.java
@@ -21,12 +21,15 @@
 package jalview.api;
 
 import java.util.Collection;
-import java.util.Iterator;
+import java.util.Set;
 
 public interface FeaturesDisplayedI
 {
 
-  Iterator<String> getVisibleFeatures();
+  /**
+   * answers an unmodifiable view of the set of visible feature types
+   */
+  Set<String> getVisibleFeatures();
 
   boolean isVisible(String featureType);
 
@@ -36,6 +39,12 @@ public interface FeaturesDisplayedI
 
   void setVisible(String featureType);
 
+  /**
+   * Sets all the specified feature types to visible. Visibility of other
+   * feature types is not changed.
+   * 
+   * @param featureTypes
+   */
   void setAllVisible(Collection<String> featureTypes);
 
   boolean isRegistered(String type);
@@ -44,6 +53,6 @@ public interface FeaturesDisplayedI
 
   int getVisibleFeatureCount();
 
-  int getRegisterdFeaturesCount();
+  int getRegisteredFeaturesCount();
 
 }