IN PROGRESS - issue SWF-720: Multiple checkboxes to Collection mapping

http://jira.springframework.org/browse/SWF-720

spring-binding/src/main/java/org/springframework/binding/format/FormatterRegistry.java

@@ -32,9 +32,10 @@ public interface FormatterRegistry {
 	/**
 	 * Returns the formatter for the given class of object with the given id. Use this method to query a custom
 	 * formatter instance for a given class of object.
+	 * @param clazz the type of object that will be formatted
 	 * @param id the id of the custom formatter instance; typically descriptive like "localDate"
 	 * @return the formatter
 	 */
-	public Formatter getFormatter(String id);
+	public Formatter getFormatter(Class clazz, String id);
 
 }

spring-binding/src/main/java/org/springframework/binding/format/registry/GenericFormatterRegistry.java

@@ -42,9 +42,13 @@ public class GenericFormatterRegistry implements FormatterRegistry {
 		return (Formatter) formattersByClass.get(clazz);
 	}
 
-	public Formatter getFormatter(String id) {
+	public Formatter getFormatter(Class clazz, String id) {
+		Assert.notNull(clazz, "The formatted class argument is required");
 		Assert.hasText(id, "The id of the custom formatter is required");
-		return (Formatter) formattersById.get(id);
+		Formatter formatter = (Formatter) formattersById.get(id);
+		if (formatter != null && formatter.getObjectType().equals(clazz)) {
+		}
+		return formatter;
 	}
 
 	// impl

spring-binding/src/test/java/org/springframework/binding/format/impl/GenericFormatterRegistryTests.java

@@ -45,7 +45,7 @@ public class GenericFormatterRegistryTests extends TestCase {
 		NumberFormatter percentFormatter = new NumberFormatter(BigDecimal.class);
 		percentFormatter.setPattern("00%");
 		registry.registerFormatter("percent", percentFormatter);
-		Formatter formatter = registry.getFormatter("percent");
+		Formatter formatter = registry.getFormatter(Integer.class, "percent");
 		assertEquals("35%", formatter.format(new BigDecimal(".35")));
 		BigDecimal value = (BigDecimal) formatter.parse("35%");
 		assertEquals(new BigDecimal(".35"), value);
@@ -54,9 +54,9 @@ public class GenericFormatterRegistryTests extends TestCase {
 	public void testRegisterCustomFormatterBogusLookupId() {
 		registry.registerFormatter(new NumberFormatter(Integer.class));
 		registry.registerFormatter("double", new NumberFormatter(Double.class));
-		Formatter formatter = registry.getFormatter("bogusFormat");
+		Formatter formatter = registry.getFormatter(Integer.class, "bogusFormat");
 		assertNull(formatter);
-		formatter = registry.getFormatter("double");
+		formatter = registry.getFormatter(Double.class, "double");
 		assertNotNull(formatter);
 	}