py4j.commands

Class ListCommand

java.lang.Object

py4j.commands.AbstractCommand

py4j.commands.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 Summary

Fields

Modifier and Type	Field and Description
static String	LIST_COMMAND_NAME
static char	LIST_CONCAT_SUB_COMMAND_NAME
static char	LIST_COUNT_SUB_COMMAND_NAME
static char	LIST_IMULT_SUB_COMMAND_NAME
static char	LIST_MAX_SUB_COMMAND_NAME
static char	LIST_MIN_SUB_COMMAND_NAME
static char	LIST_MULT_SUB_COMMAND_NAME
static char	LIST_REVERSE_SUB_COMMAND_NAME
static char	LIST_SLICE_SUB_COMMAND_NAME
static char	LIST_SORT_SUB_COMMAND_NAME
static String	RETURN_VOID

Fields inherited from class py4j.commands.AbstractCommand

commandName, connection, gateway

Constructor Summary

Constructors

Constructor and Description
ListCommand()

Method Summary

Modifier and Type	Method and Description
void	execute(String commandName, BufferedReader reader, BufferedWriter writer)

Methods inherited from class py4j.commands.AbstractCommand

getArguments, getCommandName, getStringArguments, init, invokeMethod

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

LIST_COMMAND_NAME

public static final 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

RETURN_VOID

public static final String RETURN_VOID

See Also:

Constant Field Values

Constructor Detail

ListCommand

public ListCommand()

Method Detail

execute

public void execute(String commandName,
                    BufferedReader reader,
                    BufferedWriter writer)
             throws Py4JException,
                    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.

IOException - If an error occurs while using the reader or the writer.