Top Description Inners Constructors Methods

com.carrotsearch.sizeof

public Class ObjectTree

Class Inheritance

extends Object

java.lang.Object
com.carrotsearch.sizeof.ObjectTree

Imports

java.io.PrintWriter, .StringWriter, java.lang.reflect.*, java.util.*, com.carrotsearch.sizeof.RamUsageEstimator

Dumps retained and shallow memory taken by an object and its reference hierarchy. This could be improved in a number of ways but works for debugging and "live" object monitoring. For static heap analyses a real performance monitor like YourKit is much better (and accurate?).

See Also: dump(PrintWriter, Object), dump(Object)

Nested and Inner Type Summary

Modifier and Type	Class and Description
private static class	ObjectTree.Node

Constructor Summary

Access	Constructor and Description
public	ObjectTree()

Method Summary

Modifier and Type	Method and Description
public static void	dump(PrintWriter pw, Object root) Dump the object tree to a `PrintWriter`.
public static String	dump(Object root) Dump the object tree to a `String`.
private static void	printTree(StringBuilder prefix, StringBuilder line, PrintWriter pw, ObjectTree.Node node)

Inherited from java.lang.Object:: clone equals finalize getClass hashCode notify notifyAll toString wait wait wait

Constructor Detail

ObjectTree	back to summary
public ObjectTree()

Method Detail

dump	back to summary
public static void dump(PrintWriter pw, Object root) Dump the object tree to a `PrintWriter`.

dump	back to summary
public static String dump(Object root) Dump the object tree to a `String`.

printTree	back to summary
private static void printTree(StringBuilder prefix, StringBuilder line, PrintWriter pw, ObjectTree.Node node)

com.carrotsearch.sizeof back to summary

private Class ObjectTree.Node

Class Inheritance

extends Object

java.lang.Object
com.carrotsearch.sizeof.ObjectTree.Node

Field Summary

Modifier and Type	Field and Description
private List<ObjectTree.Node>	children
private long	deepSize
private String	name
private long	shallowSize

Constructor Summary

Access	Constructor and Description
public	Node(String name, Object delegate)

Method Summary

Modifier and Type	Method and Description
private void	addChild(ObjectTree.Node node)
public static ObjectTree.Node	create(Object delegate) Factory create method.
public static ObjectTree.Node	create(String prefix, Object delegate, IdentityHashMap<Object, Integer> seen) Factory create method.
public List<ObjectTree.Node>	getChildren()
public String	getName()
public boolean	hasChildren()
private static String	uniqueName(Object t, IdentityHashMap<Object, Integer> seen)

Inherited from java.lang.Object:: clone equals finalize getClass hashCode notify notifyAll toString wait wait wait

Field Detail

children	back to summary
private List<ObjectTree.Node> children

deepSize	back to summary
private long deepSize

name	back to summary
private String name

shallowSize	back to summary
private long shallowSize

Constructor Detail

Node	back to summary
public Node(String name, Object delegate)

Method Detail

addChild	back to summary
private void addChild(ObjectTree.Node node)

create	back to summary
public static ObjectTree.Node create(Object delegate) Factory create method.

create	back to summary
public static ObjectTree.Node create(String prefix, Object delegate, IdentityHashMap<Object, Integer> seen) Factory create method.

getChildren	back to summary
public List<ObjectTree.Node> getChildren()

getName	back to summary
public String getName()

hasChildren	back to summary
public boolean hasChildren()

uniqueName	back to summary
private static String uniqueName(Object t, IdentityHashMap<Object, Integer> seen)