py4j.commands

Class JVMViewCommand

java.lang.Object

py4j.commands.AbstractCommand

py4j.commands.JVMViewCommand

All Implemented Interfaces:

Command

public class JVMViewCommand
extends AbstractCommand

A JVMViewCommand is responsible for managing JVM views: creating views, adding imports, searching for fully qualified names.

Field Summary

Fields

Modifier and Type	Field and Description
static char	CREATE_VIEW_SUB_COMMAND_NAME
static char	IMPORT_SUB_COMMAND_NAME
static java.lang.String	JVMVIEW_COMMAND_NAME
static char	REMOVE_IMPORT_SUB_COMMAND_NAME
protected ReflectionEngine	rEngine
static char	SEARCH_SUB_COMMAND_NAME

Fields inherited from class py4j.commands.AbstractCommand

commandName, connection, gateway

Constructor Summary

Constructors

Constructor and Description
JVMViewCommand()

Method Summary

Modifier and Type	Method and Description
void	execute(java.lang.String commandName, java.io.BufferedReader reader, java.io.BufferedWriter writer)
void	init(Gateway gateway, Py4JServerConnection connection) Called when a command instance is created and assigned to a connection.

Methods inherited from class py4j.commands.AbstractCommand

getArguments, getCommandName, getStringArguments, invokeMethod

Methods inherited from class java.lang.Object

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

Field Detail

CREATE_VIEW_SUB_COMMAND_NAME

public static final char CREATE_VIEW_SUB_COMMAND_NAME

See Also:

Constant Field Values

IMPORT_SUB_COMMAND_NAME

public static final char IMPORT_SUB_COMMAND_NAME

See Also:

Constant Field Values

REMOVE_IMPORT_SUB_COMMAND_NAME

public static final char REMOVE_IMPORT_SUB_COMMAND_NAME

See Also:

Constant Field Values

SEARCH_SUB_COMMAND_NAME

public static final char SEARCH_SUB_COMMAND_NAME

See Also:

Constant Field Values

JVMVIEW_COMMAND_NAME

public static final java.lang.String JVMVIEW_COMMAND_NAME

See Also:

Constant Field Values

rEngine

protected ReflectionEngine rEngine

Constructor Detail

JVMViewCommand

public JVMViewCommand()

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.

init

public void init(Gateway gateway,
                 Py4JServerConnection connection)

Description copied from interface: Command

Called when a command instance is created and assigned to a connection.

Specified by:

init in interface Command

Overrides:

init in class AbstractCommand

connection - the Py4JServerConnection this socket is assigned to