@Override
	public Class<?>[] groupsToValidate() {
		switch (store) {
			case jdbc:
				return new Class<?>[] { JdbcStore.class };
			case redis:
				return new Class<?>[] { RedisStore.class };
			default:
				return new Class<?>[] { Default.class };
		}
	}
Describes options to the {@code aggregator} processor module.

@author Eric Bottard
spring-xd-dirt/src/main/java/org/springframework/xd/dirt/modules/metadata/AggregatorProcessorModuleOptionsMetadata.java