Package py4j.commands

Class ListCommand

  • All Implemented Interfaces:
    Command

    public class ListCommand
    extends AbstractCommand

    A ListCommand is responsible for handling operations on lists (e.g., slicing).

    Author:
    Barthelemy Dagenais
    • Field Detail

      • LIST_COMMAND_NAME

        public static final java.lang.String LIST_COMMAND_NAME
        See Also:
        Constant Field Values
      • LIST_SORT_SUB_COMMAND_NAME

        public static final char LIST_SORT_SUB_COMMAND_NAME
        See Also:
        Constant Field Values
      • LIST_REVERSE_SUB_COMMAND_NAME

        public static final char LIST_REVERSE_SUB_COMMAND_NAME
        See Also:
        Constant Field Values
      • LIST_MAX_SUB_COMMAND_NAME

        public static final char LIST_MAX_SUB_COMMAND_NAME
        See Also:
        Constant Field Values
      • LIST_MIN_SUB_COMMAND_NAME

        public static final char LIST_MIN_SUB_COMMAND_NAME
        See Also:
        Constant Field Values
      • LIST_SLICE_SUB_COMMAND_NAME

        public static final char LIST_SLICE_SUB_COMMAND_NAME
        See Also:
        Constant Field Values
      • LIST_CONCAT_SUB_COMMAND_NAME

        public static final char LIST_CONCAT_SUB_COMMAND_NAME
        See Also:
        Constant Field Values
      • LIST_MULT_SUB_COMMAND_NAME

        public static final char LIST_MULT_SUB_COMMAND_NAME
        See Also:
        Constant Field Values
      • LIST_IMULT_SUB_COMMAND_NAME

        public static final char LIST_IMULT_SUB_COMMAND_NAME
        See Also:
        Constant Field Values
      • LIST_COUNT_SUB_COMMAND_NAME

        public static final char LIST_COUNT_SUB_COMMAND_NAME
        See Also:
        Constant Field Values
    • Constructor Detail

      • ListCommand

        public ListCommand()
    • Method Detail

      • execute

        public void execute​(java.lang.String commandName,
                            java.io.BufferedReader reader,
                            java.io.BufferedWriter writer)
                     throws Py4JException,
                            java.io.IOException
        Specified by:
        execute in interface Command
        Specified by:
        execute in class AbstractCommand
        Parameters:
        commandName - The command name that was extracted of the command.
        reader - The reader from which to read the command parts. Each command part are expected to be on a separate line and readable through BufferedReader.readLine().
        writer - The writer to which the return value should be written.
        Throws:
        Py4JException - If an error occurs while executing the command. All exceptions except IOException caused by the reader and the writer should be wrapper in a Py4JException instance.
        java.io.IOException - If an error occurs while using the reader or the writer.