HyperLogLogPlusConverter implements Converter { @Override public boolean canHandle(final Class clazz) { return HyperLogLogPlus.class.equals(clazz); }  @Override boolean canHandle(final Class clazz); @Override DataType convertedType(); @Override Long convert(final Object object);  }
@Test public void testCanHandleHyperLogLogPlus() { assertTrue(HYPER_LOG_LOG_PLUS_CONVERTER.canHandle(HyperLogLogPlus.class)); assertFalse(HYPER_LOG_LOG_PLUS_CONVERTER.canHandle(String.class)); }