Class HeapdumpCommand

java.lang.Object

com.ibm.java.diagnostics.utils.commands.BaseCommand

com.ibm.jvm.dtfjview.commands.BaseJdmpviewCommand

com.ibm.jvm.dtfjview.commands.HeapdumpCommand

All Implemented Interfaces:

ICommand

public class HeapdumpCommand
extends BaseJdmpviewCommand

Command for dumping heapdumps from DTFJ. Contains the heap-walking logic for building the reference tree. The code for writing the heapdumps (both PHD and classic) is in the com.ibm.jvm.heapdump package.

Nested Class Summary

Nested classes/interfaces declared in class BaseJdmpviewCommand

BaseJdmpviewCommand.ArtifactType

Field Summary

Fields

Modifier and Type	Field	Description
static final String	COMMAND_NAME
static final String	DESCRIPTION
static final String	LONG_DESCRIPTION

Fields declared in class BaseJdmpviewCommand

ctx, hexfmt, logger, out

Fields declared in class BaseCommand

COMMAND_FORMAT, config, nl, SUBCOMMAND_FORMAT

Constructor Summary

Constructors

Constructor	Description
HeapdumpCommand()

Method Summary

Modifier and Type	Method	Description
void	doCommand(String[] args)
void	printDetailedHelp(PrintStream out)	Print detailed help for a given command
void	run(String command, String[] args, IContext context, PrintStream out)	Executes the command

Methods declared in class BaseJdmpviewCommand

decodeThreadState, getArtifactType, handleException, initCommand, toHexString, toHexString, toHexString, toHexString, toHexStringAddr, toLong, toString, toString

Methods declared in class BaseCommand

addCommand, addSubCommand, getCommandDescriptions, getCommandNames, getConfig, recognises, setConfig

Methods declared in class Object

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

Field Details

COMMAND_NAME

public static final String COMMAND_NAME

See Also:

• Constant Field Values

DESCRIPTION

public static final String DESCRIPTION

See Also:

• Constant Field Values

LONG_DESCRIPTION

public static final String LONG_DESCRIPTION

See Also:

• Constant Field Values

Constructor Details

HeapdumpCommand

public HeapdumpCommand()

Method Details

run

public void run(String command,
 String[] args,
 IContext context,
 PrintStream out)
         throws CommandException

Description copied from interface: ICommand

Executes the command

Parameters:

command - Command string e.g. !j9x

args - Arguments for command

context - Context to work in

out - PrintStream to write command output on

Throws:

CommandException - If there is any problem running the command (incorrect usage, CorruptData etc.)

doCommand

public void doCommand(String[] args)

printDetailedHelp

public void printDetailedHelp(PrintStream out)

Description copied from class: BaseJdmpviewCommand

Print detailed help for a given command

Specified by:

printDetailedHelp in class BaseJdmpviewCommand

Parameters:

out - stream to write the output to