Converter: remove abstract getXXXType methods

Instead of passing Class instances via constructors, concrete objects
should just implement the methods with an appropriate return value, for
consistency across SJC.

Author: hinerm

src/main/java/org/scijava/convert/AbstractConverter.java

@@ -57,18 +57,6 @@ public abstract class AbstractConverter extends
 	AbstractHandlerPlugin<ConversionRequest> implements Converter
 {
 
-	// -- Fields --
-
-	private final Class<?> inClass;
-	private final Class<?> outClass;
-
-	// -- Constructor --
-
-	public AbstractConverter(final Class<?> inClass, final Class<?> outClass) {
-		this.inClass = inClass;
-		this.outClass = outClass;
-	}
-
 	// -- ConversionHandler methods --
 
 	@Override
@@ -99,16 +87,6 @@ public void populateInputs(Set<Object> objects) {
 		// No-op
 	}
 
-	@Override
-	public Class<?> getOutputType() {
-		return outClass;
-	}
-
-	@Override
-	public Class<?> getInputType() {
-		return inClass;
-	}
-
 	// -- Typed methods --
 
 	@Override

src/main/java/org/scijava/convert/DefaultConverter.java

@@ -57,12 +57,6 @@
 @Plugin(type = Converter.class)
 public class DefaultConverter extends AbstractConverter {
 
-	// -- Constructor --
-
-	public DefaultConverter() {
-		super(Object.class, Object.class);
-	}
-
 	// -- ConversionHandler methods --
 
 	@Override
@@ -271,6 +265,16 @@ public <T> T convert(final Object src, final Class<T> dest) {
 		}
 	}
 
+	@Override
+	public Class<?> getOutputType() {
+		return Object.class;
+	}
+
+	@Override
+	public Class<?> getInputType() {
+		return Object.class;
+	}
+
 	// -- Helper methods --
 
 	private Constructor<?> getConstructor(final Class<?> type,