public CommandWrapper(String name) throws StreamSpinnerException { super(name); table = new String[1]; table[0] = "Command"; String[] attrs = {table[0] + ".Timestamp", table[0] + ".Name", table[0] + ".Output"}; String[] types = {DataTypes.LONG, DataTypes.STRING, DataTypes.STRING}; schema = new Schema(table[0], attrs, types); schema.setTableType(Schema.STREAM); }