Implement Typed::getType where it makes sense

src/main/java/net/imglib2/labeling/DefaultROIStrategy.java

@@ -44,6 +44,7 @@
 import net.imglib2.roi.AbstractIterableRegionOfInterest;
 import net.imglib2.roi.IterableRegionOfInterest;
 import net.imglib2.roi.RegionOfInterest;
+import net.imglib2.type.logic.BitType;
 
 /**
  * A relatively conservative strategy suitable for blobby objects - retain the
@@ -329,6 +330,11 @@ public void move( final double[] displacement )
 			throw new UnsupportedOperationException( "yet to be implemented" );
 		}
 
+		@Override
+		public BitType getType()
+		{
+			return new BitType();
+		}
 	}
 
 	@Override

src/main/java/net/imglib2/labeling/NativeImgLabeling.java

@@ -226,4 +226,10 @@ public Cursor< LabelingType< T > > localizingCursor( final Interval interval )
 
 		return new LabelingConvertedCursor< I, T >( c, generation, mapping );
 	}
+
+	@Override
+	public LabelingType< T > getType()
+	{
+		return new LabelingType<>( null, mapping, generation );
+	}
 }

src/main/java/net/imglib2/roi/AbstractIterableRegionOfInterest.java

@@ -326,6 +326,12 @@ public T get()
 				return randomAccess.get();
 			}
 
+			@Override
+			public T getType()
+			{
+				return randomAccess.getType();
+			}
+
 			@Override
 			public void jumpFwd( final long steps )
 			{
@@ -402,6 +408,12 @@ public long size()
 			return getCachedSize();
 		}
 
+		@Override
+		public T getType()
+		{
+			return src.getType();
+		}
+
 		@Override
 		public T firstElement()
 		{

src/main/java/net/imglib2/roi/BinaryMaskRegionOfInterest.java

@@ -127,6 +127,12 @@ public TT get()
 				return src.get();
 			}
 
+			@Override
+			public TT getType()
+			{
+				return src.getType();
+			}
+
 			@Override
 			public void fwd()
 			{
@@ -215,6 +221,12 @@ public TT firstElement()
 			return src.get();
 		}
 
+		@Override
+		public TT getType()
+		{
+			return src.getType();
+		}
+
 		@Override
 		public Object iterationOrder()
 		{

src/main/java/net/imglib2/roi/RegionOfInterest.java

@@ -59,4 +59,10 @@ public interface RegionOfInterest extends RealRandomAccessibleRealInterval< BitT
 	void move( double displacement, int d );
 
 	void move( double[] displacement );
+
+	@Override
+	default BitType getType()
+	{
+		return new BitType();
+	}
 }

src/main/java/net/imglib2/roi/boundary/Boundary.java

@@ -11,13 +11,13 @@
  * %%
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are met:
- * 
+ *
  * 1. Redistributions of source code must retain the above copyright notice,
  *    this list of conditions and the following disclaimer.
  * 2. Redistributions in binary form must reproduce the above copyright notice,
  *    this list of conditions and the following disclaimer in the documentation
  *    and/or other materials provided with the distribution.
- * 
+ *
  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
  * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
@@ -135,6 +135,12 @@ public RandomAccess< BoolType > randomAccess( final Interval interval )
 		return randomAccess();
 	}
 
+	@Override
+	public BoolType getType()
+	{
+		return new BoolType();
+	}
+
 	private final class BoundaryIterable extends AbstractWrappedInterval< Interval > implements IterableInterval< Void >
 	{
 		BoundaryIterable()
@@ -177,6 +183,12 @@ public Void firstElement()
 		{
 			return cursor().next();
 		}
+
+		@Override
+		public Void getType()
+		{
+			return null;
+		}
 	}
 
 	private final class BoundaryCursor extends Point implements Cursor< Void >

src/main/java/net/imglib2/roi/boundary/BoundaryRandomAccess4.java

@@ -117,6 +117,12 @@ public BoolType get()
 		return type;
 	}
 
+	@Override
+	public BoolType getType()
+	{
+		return type;
+	}
+
 	@Override
 	public BoundaryRandomAccess4< T > copy()
 	{

src/main/java/net/imglib2/roi/boundary/BoundaryRandomAccess8.java

@@ -145,6 +145,12 @@ public BoolType get()
 		return type;
 	}
 
+	@Override
+	public BoolType getType()
+	{
+		return type;
+	}
+
 	@Override
 	public BoundaryRandomAccess8< T > copy()
 	{

src/main/java/net/imglib2/roi/geom/integer/IterableLine.java

@@ -164,6 +164,12 @@ public Cursor< Void > localizingCursor()
 		return new LineCursor();
 	}
 
+	@Override
+	public Void getType()
+	{
+		return null;
+	}
+
 	private final class LineCursor implements Cursor< Void >
 	{
 

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

@@ -167,6 +167,12 @@ public LabelingType< T > get()
 			return type;
 		}
 
+		@Override
+		public LabelingType< T > getType()
+		{
+			return type;
+		}
+
 		@Override
 		public LabelingConvertedRandomAccess copy()
 		{
@@ -191,6 +197,12 @@ public LabelingType< T > get()
 			return type;
 		}
 
+		@Override
+		public LabelingType< T > getType()
+		{
+			return type;
+		}
+
 		@Override
 		public LabelingConvertedCursor copy()
 		{
@@ -228,6 +240,12 @@ public LabelingType< T > firstElement()
 		return cursor().next();
 	}
 
+	@Override
+	public LabelingType< T > getType()
+	{
+		return new LabelingType<>( null, mapping, generation );
+	}
+
 	@Override
 	public Iterator< LabelingType< T > > iterator()
 	{

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

@@ -180,6 +180,12 @@ public RandomAccess< BoolType > randomAccess( final Interval interval )
 			return new OutOfBoundsConstantValue<>( this, new BoolType( false ) );
 	}
 
+	@Override
+	public BoolType getType()
+	{
+		return new BoolType();
+	}
+
 	@Override
 	public PositionableIterableInterval< Void > inside()
 	{
@@ -218,6 +224,12 @@ public Void firstElement()
 			return null;
 		}
 
+		@Override
+		public Void getType()
+		{
+			return null;
+		}
+
 		@Override
 		public Object iterationOrder()
 		{

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

@@ -88,6 +88,12 @@ public BoolType get()
 		return type;
 	}
 
+	@Override
+	public BoolType getType()
+	{
+		return type;
+	}
+
 	@Override
 	public LabelRegionRandomAccess< T > copy()
 	{

src/main/java/net/imglib2/roi/mask/integer/MaskAsRandomAccessible.java

@@ -88,4 +88,9 @@ public RandomAccess< B > randomAccess( final Interval interval )
 		return randomAccess();
 	}
 
+	@Override
+	public B getType()
+	{
+		return type;
+	}
 }

src/main/java/net/imglib2/roi/mask/integer/MaskIntervalAsRandomAccessibleInterval.java

@@ -78,4 +78,10 @@ public RandomAccess< B > randomAccess( final Interval interval )
 	{
 		return randomAccess();
 	}
+
+	@Override
+	public B getType()
+	{
+		return type;
+	}
 }

src/main/java/net/imglib2/roi/mask/integer/MaskPredicateRandomAccess.java

@@ -73,6 +73,12 @@ public B get()
 		return type;
 	}
 
+	@Override
+	public B getType()
+	{
+		return type;
+	}
+
 	@Override
 	public MaskPredicateRandomAccess< B > copy()
 	{

src/main/java/net/imglib2/roi/mask/real/MaskPredicateRealRandomAccess.java

@@ -75,6 +75,12 @@ public B get()
 		return type;
 	}
 
+	@Override
+	public B getType()
+	{
+		return type;
+	}
+
 	@Override
 	public MaskPredicateRealRandomAccess< B > copy()
 	{

src/main/java/net/imglib2/roi/mask/real/RealMaskAsRealRandomAccessible.java

@@ -81,4 +81,9 @@ public RealRandomAccess< B > realRandomAccess( final RealInterval interval )
 		return realRandomAccess();
 	}
 
+	@Override
+	public B getType()
+	{
+		return type;
+	}
 }

src/main/java/net/imglib2/roi/mask/real/RealMaskRealIntervalAsRealRandomAccessibleRealInterval.java

@@ -70,4 +70,10 @@ public RealRandomAccess< B > realRandomAccess( final RealInterval interval )
 	{
 		return realRandomAccess();
 	}
+
+	@Override
+	public B getType()
+	{
+		return type;
+	}
 }

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

@@ -90,6 +90,12 @@ public RandomAccess< T > randomAccess( final Interval interval )
 		return sourceInterval.randomAccess( interval );
 	}
 
+	@Override
+	public T getType()
+	{
+		return sourceInterval.getType();
+	}
+
 	@Override
 	public IterableInterval< Void > inside()
 	{
@@ -140,5 +146,11 @@ public Cursor< Void > localizingCursor()
 		{
 			return cursor();
 		}
+
+		@Override
+		public Void getType()
+		{
+			return null;
+		}
 	}
 }

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

@@ -89,6 +89,12 @@ public RandomAccess< T > randomAccess( final Interval interval )
 		return sourceInterval.randomAccess( interval );
 	}
 
+	@Override
+	public T getType()
+	{
+		return sourceInterval.getType();
+	}
+
 	@Override
 	public IterableInterval< Void > inside()
 	{
@@ -139,5 +145,11 @@ public Cursor< Void > localizingCursor()
 		{
 			return new TrueCursor< T >( sourceIterable.localizingCursor(), size );
 		}
+
+		@Override
+		public Void getType()
+		{
+			return null;
+		}
 	}
 }

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

@@ -106,6 +106,12 @@ public Cursor< T > localizingCursor()
 		return new PositionableIterableIntervalCursor( source.localizingCursor() );
 	}
 
+	@Override
+	public T getType()
+	{
+		return source.getType();
+	}
+
 	class PositionableIterableIntervalCursor extends OffsetLocalizable< Cursor< T > > implements Cursor< T >
 	{
 		public PositionableIterableIntervalCursor( final Cursor< T > cursor )
@@ -119,6 +125,12 @@ public T get()
 			return source.get();
 		}
 
+		@Override
+		public T getType()
+		{
+			return source.getType();
+		}
+
 		@Override
 		public void jumpFwd( final long steps )
 		{