package org.atlasapi.media.channel;
import com.google.common.base.Optional;
public interface ChannelGroupResolver {
Optional<ChannelGroup> fromAlias(String alias);
Optional<ChannelGroup> channelGroupFor(String canonicalUri);
Optional<ChannelGroup> channelGroupFor(Long id);
Iterable<ChannelGroup> channelGroupsFor(Iterable<? extends Long> ids);
Iterable<ChannelGroup> channelGroups();
Iterable<ChannelGroup> channelGroupsFor(Channel channel);
}