Override II default methods where it makes sense

src/main/java/net/imglib2/roi/labeling/LabelRegion.java

@@ -78,7 +78,7 @@ public class LabelRegion< T > extends PositionableInterval implements Positionab
 
 	private final ArrayList< TIntArrayList > itcodes;
 
-	private long size;
+	private long insideSize;
 
 	private final RealPoint centerOfMass;
 
@@ -93,7 +93,7 @@ public LabelRegion( final LabelRegions< T > regions, final LabelRegionProperties
 		this.regionProperties = regionProperties;
 		this.label = label;
 		expectedGeneration = regionProperties.update();
-		size = regionProperties.getSize();
+		insideSize = regionProperties.getSize();
 		itcodes = regionProperties.getItcodes();
 		centerOfMass = RealPoint.wrap( regionProperties.getCenterOfMass() );
 		inside = new LabelRegionIterable();
@@ -109,7 +109,7 @@ protected LabelRegion( final LabelRegion< T > other )
 		this.regionProperties = other.regionProperties;
 		this.label = other.label;
 		this.expectedGeneration = other.expectedGeneration;
-		this.size = other.size;
+		this.insideSize = other.insideSize;
 		this.itcodes = other.itcodes;
 		this.centerOfMass = other.centerOfMass;
 		this.inside = new LabelRegionIterable();
@@ -153,7 +153,7 @@ private void update()
 				initialMin[ d ] = bbmin[ d ];
 				initialMax[ d ] = bbmax[ d ];
 			}
-			size = regionProperties.getSize();
+			insideSize = regionProperties.getSize();
 		}
 	}
 
@@ -215,7 +215,7 @@ public LabelRegionCursor localizingCursor()
 		@Override
 		public long size()
 		{
-			return LabelRegion.this.size();
+			return LabelRegion.this.insideSize();
 		}
 
 		@Override
@@ -267,10 +267,10 @@ public long max( final int d )
 		}
 	}
 
-	public long size()
+	private long insideSize()
 	{
 		update();
-		return size;
+		return insideSize;
 	}
 
 	@Override

src/main/java/net/imglib2/roi/util/IterableRegionOnBooleanRAI.java

@@ -89,6 +89,30 @@ public RandomAccess< T > randomAccess( final Interval interval )
 		return sourceInterval.randomAccess( interval );
 	}
 
+	@Override
+	public Cursor< T > cursor()
+	{
+		return sourceInterval.cursor();
+	}
+
+	@Override
+	public Cursor< T > localizingCursor()
+	{
+		return sourceInterval.localizingCursor();
+	}
+
+	@Override
+	public Object iterationOrder()
+	{
+		return sourceInterval.iterationOrder();
+	}
+
+	@Override
+	public long size()
+	{
+		return sourceInterval.size();
+	}
+
 	@Override
 	public T getType()
 	{

src/main/java/net/imglib2/roi/util/PositionableWrappedIterableRegion.java

@@ -84,6 +84,30 @@ public RandomAccess< T > randomAccess( final Interval interval )
 		return new RA( source.randomAccess( Intervals.translate( interval, currentOffset ) ), currentOffset );
 	}
 
+	@Override
+	public Cursor< T > cursor()
+	{
+		return new C( source.cursor(), currentOffset );
+	}
+
+	@Override
+	public Cursor< T > localizingCursor()
+	{
+		return new C( source.localizingCursor(), currentOffset );
+	}
+
+	@Override
+	public Object iterationOrder()
+	{
+		return this;
+	}
+
+	@Override
+	public long size()
+	{
+		return source.size();
+	}
+
 	@Override
 	public T getType()
 	{
@@ -116,6 +140,56 @@ public RA copy()
 		}
 	}
 
+	private final class C extends OffsetLocalizable< Cursor< T > > implements Cursor< T >
+	{
+		public C( final Cursor< T > cursor, final long[] offset )
+		{
+			super( cursor, offset );
+		}
+
+		@Override
+		public T get()
+		{
+			return source.get();
+		}
+
+		@Override
+		public void jumpFwd( final long steps )
+		{
+			source.jumpFwd( steps );
+		}
+
+		@Override
+		public void fwd()
+		{
+			source.fwd();
+		}
+
+		@Override
+		public void reset()
+		{
+			source.reset();
+		}
+
+		@Override
+		public boolean hasNext()
+		{
+			return source.hasNext();
+		}
+
+		@Override
+		public T next()
+		{
+			return source.next();
+		}
+
+		@Override
+		public C copy()
+		{
+			return new C( source.copy(), offset );
+		}
+	}
+
 	@Override
 	public PositionableWrappedIterableRegion< T > copy()
 	{