Module openj9.dtfj

Package com.ibm.j9ddr.vm29.tools.ddrinteractive

Class LinearDumper

java.lang.Object

com.ibm.j9ddr.vm29.tools.ddrinteractive.LinearDumper

All Implemented Interfaces:

IClassWalkCallbacks

public class LinearDumper
extends Object
implements IClassWalkCallbacks

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static class	LinearDumper.J9ClassRegion	Private class used to store the regions.
static class	LinearDumper.J9ClassRegionNode

Nested classes/interfaces declared in interface com.ibm.j9ddr.vm29.tools.ddrinteractive.IClassWalkCallbacks

IClassWalkCallbacks.SlotType

Constructor Summary

Constructors

Constructor	Description
LinearDumper()

Method Summary

Modifier and Type	Method	Description
void	addRegion(StructurePointer clazz, IClassWalkCallbacks.SlotType type, AbstractPointer slotPtr, String slotName, long length, boolean computePadding)
void	gatherLayoutInfo(PrintStream out, ClassWalker classWalker, long nestingThreshold)	Prints a class in a linear way to the PrintStream
LinearDumper.J9ClassRegionNode	getAllRegions(ClassWalker classWalker)	Returns a tree of regions and slots.
static void	printAllRegions(PrintStream out, StructurePointer clazz, long nestingThreshold, LinearDumper.J9ClassRegionNode regionNode, int nesting)

Methods declared in class java.lang.Object

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

Methods declared in interface com.ibm.j9ddr.vm29.tools.ddrinteractive.IClassWalkCallbacks

addSection, addSlot, addSlot

Constructor Detail

LinearDumper

public LinearDumper()

Method Detail

addRegion

public void addRegion(StructurePointer clazz,
                      IClassWalkCallbacks.SlotType type,
                      AbstractPointer slotPtr,
                      String slotName,
                      long length,
                      boolean computePadding)
               throws CorruptDataException

Throws:

CorruptDataException

getAllRegions

public LinearDumper.J9ClassRegionNode getAllRegions(ClassWalker classWalker)
                                             throws CorruptDataException

Returns a tree of regions and slots. Each slot is under a region. The root element is always null.

Parameters:

classWalker -

Returns:

J9ClassRegionNode tree of J9ClassRegion

Throws:

CorruptDataException

gatherLayoutInfo

public void gatherLayoutInfo(PrintStream out,
                             ClassWalker classWalker,
                             long nestingThreshold)
                      throws CorruptDataException

Prints a class in a linear way to the PrintStream

Parameters:

out -

classWalker - an instance of a IClassWalker

nestingThreshold - the level of detail. Level 1 prints the sections and the sizes. Level 2 prints more details.

Throws:

CorruptDataException

printAllRegions

public static void printAllRegions(PrintStream out,
                                   StructurePointer clazz,
                                   long nestingThreshold,
                                   LinearDumper.J9ClassRegionNode regionNode,
                                   int nesting)
                            throws CorruptDataException

Throws:

CorruptDataException