public String channelTag()
    {
        return (null != tags && tags.length > CHANNEL_TAG_INDEX) ? tags[CHANNEL_TAG_INDEX] : null;
    }
public String channelTag()
    {
        return (null != tags && tags.length > CHANNEL_TAG_INDEX) ? tags[CHANNEL_TAG_INDEX] : null;
    }
public String channelTag ( ) { return ( null != tags && tags . length > CHANNEL_TAG_INDEX ) ? tags [ CHANNEL_TAG_INDEX ] : null ; }
Get the channel tag, if it exists, that refers to an another channel.

@return channel tag if it exists or null if not in this URI.
@see CommonContext#TAGS_PARAM_NAME
@see CommonContext#TAG_PREFIX
Get the channel tag if it exists that refers to an another channel .