org.garret.heap
Class HeapInfo

java.lang.Object
  org.garret.heap.HeapInfo

public class HeapInfo

extends java.lang.Object

Constructor Summary

HeapInfo()

Method Summary

void	addRoot(java.lang.Object obj) Add object to the list of root objects
void	addRootClass(java.lang.Class cls) Add all static components of the class to the list of root objects
java.util.HashMap	instances(Selector selector) Get infirmation about ob ject instances accessible from specified roots.
java.util.Collection	links(Selector src, Selector dst) Find links between objects matching search criteria
Instance[]	profile(Selector selector) Get object instance profile.
java.util.Collection	referencedBy(java.lang.Object obj) Get list of objects referencing this object
java.util.Collection	referencedByClass(java.lang.Object obj) Get list of classes which instances reference this object
void	refresh() Build object closure - collect heap info
java.util.Collection	relations(Selector src, Selector dst) Find relations between classes matching search criteria

Methods inherited from class java.lang.Object

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

Constructor Detail

HeapInfo

public HeapInfo()

Method Detail

addRoot

public void addRoot(java.lang.Object obj)

Add object to the list of root objects

Parameters:

obj - root object

addRootClass

public void addRootClass(java.lang.Class cls)

Add all static components of the class to the list of root objects

Parameters:

cls - class which static components will be added to the list of root objects

instances

public java.util.HashMap instances(Selector selector)

Get infirmation about ob ject instances accessible from specified roots.

Parameters:

selector - object selector

Returns:

HashMap with (Class,Instance) pairs

links

public java.util.Collection links(Selector src,
                                  Selector dst)

Find links between objects matching search criteria

Parameters:

src - condition for referencing object

dst - condition for referened object

Returns:

list of Link

profile

public Instance[] profile(Selector selector)

Get object instance profile.

Parameters:

selector - object selector

Returns:

array of Instance in count descending order

referencedBy

public java.util.Collection referencedBy(java.lang.Object obj)

Get list of objects referencing this object

Parameters:

obj - referened object

Returns:

list of objects referencing this object or null if this object is not accessible from specified roots

referencedByClass

public java.util.Collection referencedByClass(java.lang.Object obj)

Get list of classes which instances reference this object

Parameters:

obj - referened object

Returns:

list of classes which instances reference this object or null if this object is not accessible from specified roots

refresh

public void refresh()

Build object closure - collect heap info

relations

public java.util.Collection relations(Selector src,
                                      Selector dst)

Find relations between classes matching search criteria

Parameters:

src - condition for referencing object

dst - condition for referened object

Returns:

list of Relation