org.github.jamm.listeners

Class TreePrinter

java.lang.Object

org.github.jamm.listeners.TreePrinter

All Implemented Interfaces:

MemoryMeterListener

public final class TreePrinter
extends Object
implements MemoryMeterListener

A memory listener that print to the System.out the class tree with the size information.

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	TreePrinter.Factory Factory for TreePrinter instances.

Constructor Summary

Constructors

Constructor and Description
TreePrinter(int maxDepth)

Method Summary

Modifier and Type	Method and Description
void	arrayElementAdded(Object[] array, int index, Object elementValue) Notification that the element from the specified array has been added.
void	byteBufferRemainingMeasured(ByteBuffer buffer, long size) Notification that the size of the remaining bytes of a ByteBuffer have been measured.
void	done(long size) Notification that the entire graph has been measured.
void	failedToAccessField(Object obj, String fieldName, Class<?> fieldType) Notification that the graph could not be fully measured has it failed to access a field.
void	fieldAdded(Object obj, String fieldName, Object fieldValue) Notification that the field from the specified object has been added.
void	objectMeasured(Object current, long size) Notification that the size of the specified object has been measured.
void	started(Object obj) Notification that MemoryMeter as started analyzing the specified object.

Methods inherited from class java.lang.Object

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

Constructor Detail

TreePrinter

public TreePrinter(int maxDepth)

Method Detail

started

public void started(Object obj)

Description copied from interface: MemoryMeterListener

Notification that MemoryMeter as started analyzing the specified object.

Specified by:

started in interface MemoryMeterListener

Parameters:

obj - the object being analyzed

fieldAdded

public void fieldAdded(Object obj,
                       String fieldName,
                       Object fieldValue)

Description copied from interface: MemoryMeterListener

Notification that the field from the specified object has been added.

Specified by:

fieldAdded in interface MemoryMeterListener

Parameters:

obj - the object for which a field has been added

fieldName - the field name

fieldValue - the field value

arrayElementAdded

public void arrayElementAdded(Object[] array,
                              int index,
                              Object elementValue)

Description copied from interface: MemoryMeterListener

Notification that the element from the specified array has been added.

Specified by:

arrayElementAdded in interface MemoryMeterListener

Parameters:

array - the array for which an element has been added

index - the element index

elementValue - the element value

objectMeasured

public void objectMeasured(Object current,
                           long size)

Description copied from interface: MemoryMeterListener

Notification that the size of the specified object has been measured.

Specified by:

objectMeasured in interface MemoryMeterListener

Parameters:

current - the object that has been measured

size - the object size in bytes

byteBufferRemainingMeasured

public void byteBufferRemainingMeasured(ByteBuffer buffer,
                                        long size)

Description copied from interface: MemoryMeterListener

Notification that the size of the remaining bytes of a ByteBuffer have been measured.

Specified by:

byteBufferRemainingMeasured in interface MemoryMeterListener

Parameters:

buffer - the ByteBuffer

size - the remaining bytes

done

public void done(long size)

Description copied from interface: MemoryMeterListener

Notification that the entire graph has been measured.

Specified by:

done in interface MemoryMeterListener

Parameters:

size - the size of the entire graph.

failedToAccessField

public void failedToAccessField(Object obj,
                                String fieldName,
                                Class<?> fieldType)

Description copied from interface: MemoryMeterListener

Notification that the graph could not be fully measured has it failed to access a field.

Specified by:

failedToAccessField in interface MemoryMeterListener

Parameters:

obj - the object owning the field that could not be accessed

fieldName - the field name

fieldType - the field type