private boolean isTable(String[] sourceComponents) {
      return sourceComponents[sourceComponents.length - 1].equalsIgnoreCase(SAMZA_SQL_QUERY_TABLE_KEYWORD);
    }
Source Resolver implementation that uses static config to return a config corresponding to a system stream.
This Source resolver implementation supports sources of type {systemName}.{streamName}[.$table]
{systemName}.{streamName} indicates a stream
{systemName}.{streamName}.$table indicates a table
samza-sql/src/main/java/org/apache/samza/sql/impl/ConfigBasedIOResolverFactory.java