| com.sun.cldchi.tools.memoryprofiler.data.MPDataProvider
All known Subclasses: com.sun.cldchi.tools.memoryprofiler.data.GlobalData,
| MPDataProvider | | public interface MPDataProvider (Code) | | The MPDataProvider declares interface which provides data for
data-displaying GUI tool.
For work it requires some implementation of VMConnection.
The implementation of this interface is provided by MPDataProviderFactory.
To work with this interface you should firstly obtain its realization from MPDataProviderFactory,
passing it an instance of VMConnection.
After this you should connect to a KDP
running on hostName:port by calling connect(String hostName, int port)
To control VM execution use pauseVM() and resumeVM() funtions. *
All other functions provide processed information.
See Also: com.sun.cldchi.tools.memoryprofiler.data.MPDataProviderFactory
See Also: com.sun.cldchi.tools.memoryprofiler.jdwp.VMConnection |
| Method Summary | |
| public ClassStatistics[] | calculateStatistics()
Returns statistics of memory usage for each class in the VM. | | public void | closeConnections()
Disconnects from the KDP. | | public void | connect(String hostName, int port)
Connects to the KDP running on hostName:port using VMConnection, which should
be set before by setConnector(VMConnection connector) call. | | public JavaClass[] | getClassList()
Returns list of all classes in systems. | | public String | getObjectTypeName(JavaObject obj)
Returns name of the type of the object. | | public Iterator | getObjects()
Returns all objects.
The provider must be connected to a KDP, see interface description.
The function will throw SocketException unless communication with VM is successful
all objects. | | public JavaObject[] | getObjectsFromTheAddresses(int start, int end)
Returns array JavaObjects, sorted by address from given memory block. | | public JavaObject[] | getObjectsOfClass(JavaClass jc)
Returns all objects with given extended class id.
The provider must be connected to a KDP, see interface description.
The function will throw SocketException unless communication with VM is successful
Parameters:
jc - - class which objects you want to find. | | public String | getStackTrace(JavaObject stackObject, int ptrAddress)
Returns stacktrace of an address on java stack
The provider must be connected to a KDP, see interface description. | | public int | get_allocation_top()
Returns value of _old_generation_end global varaible,
which is address where old generation of heap objects ends. | | public int | get_heap_start()
Returns value of _heap_start global varaible, which is address where VM heap starts. | | public int | get_heap_top()
Returns value of _heap_top global varaible, which is address where VM heap ends. | | public int | get_old_gen_end()
Returns value of _old_generation_end global varaible,
which is address where old generation of heap objects ends. | | public JavaObject[] | pathFromTheRoot(JavaObject obj)
Returns array of linked JavaObjects, where first one is a root object and last one is the parameter. | | public void | pauseVM()
Pauses the VM execution. | | public void | resumeVM()
Resumes the VM execution. |
| JAVA_OBJECT | | final public static int JAVA_OBJECT(Code) | | |
| STACK_OBJECT | | final public static int STACK_OBJECT(Code) | | |
| STATICS_OBJECT | | final public static int STATICS_OBJECT(Code) | | |
| VM_OBJECT | | final public static int VM_OBJECT(Code) | | |
| calculateStatistics | | public ClassStatistics[] calculateStatistics()(Code) | | Returns statistics of memory usage for each class in the VM.
There is separate ClassStatistics object int the returned array for each class.
The provider must be connected to a KDP, see interface description.
The function will throw SocketException unless communication with VM is successful
array of ClassStatistics.
See Also: MPDataProvider.connect(String hostName,int port) |
| closeConnections | | public void closeConnections()(Code) | | Disconnects from the KDP. Does nothing if not connected.
|
| connect | | public void connect(String hostName, int port) throws java.net.ConnectException, SocketException(Code) | | Connects to the KDP running on hostName:port using VMConnection, which should
be set before by setConnector(VMConnection connector) call.
It will throw java.net.ConnectException unless connection is successful.
Parameters:
hostName - - name of host where KDP runs
Parameters:
port - - number of port where KDP listens
See Also: MPDataProvider.closeConnections()
See Also: |
| getObjectTypeName | | public String getObjectTypeName(JavaObject obj)(Code) | | Returns name of the type of the object.
The provider must be connected to a KDP, see interface description.
The function will throw SocketException unless communication with VM is successful
Parameters:
obj - name of the type of the object.
See Also: MPDataProvider.connect(String hostName,int port) |
| getObjects | | public Iterator getObjects()(Code) | | Returns all objects.
The provider must be connected to a KDP, see interface description.
The function will throw SocketException unless communication with VM is successful
all objects. Iterator returns instances of JavaObject
See Also: MPDataProvider.connect(String hostName,int port) |
| getObjectsFromTheAddresses | | public JavaObject[] getObjectsFromTheAddresses(int start, int end)(Code) | | Returns array JavaObjects, sorted by address from given memory block.
The provider must be connected to a KDP, see interface description.
The function will throw SocketException unless communication with VM is successful
Parameters:
start - - start address of the zone in heap
Parameters:
end - - end address of the zone in heap array JavaObjects, sorted by address from given memory block.
See Also: MPDataProvider.connect(String hostName,int port) |
| getObjectsOfClass | | public JavaObject[] getObjectsOfClass(JavaClass jc)(Code) | | Returns all objects with given extended class id.
The provider must be connected to a KDP, see interface description.
The function will throw SocketException unless communication with VM is successful
Parameters:
jc - - class which objects you want to find. all objects with given extended class id.
See Also: MPDataProvider.connect(String hostName,int port) |
| getStackTrace | | public String getStackTrace(JavaObject stackObject, int ptrAddress) throws SocketException(Code) | | Returns stacktrace of an address on java stack
The provider must be connected to a KDP, see interface description.
The function will throw SocketException unless communication with VM is successful
Parameters:
stackObject - - JavaObject of stack type
Parameters:
ptrAddress - - address of the pointer on stack String.
See Also: MPDataProvider.connect(String hostName,int port) |
| get_allocation_top | | public int get_allocation_top()(Code) | | Returns value of _old_generation_end global varaible,
which is address where old generation of heap objects ends.
The provider must be connected to a KDP, see interface description.
The function will throw SocketException unless communication with VM is successful
value of _old_generation_end global varaible
See Also: MPDataProvider.connect(String hostName,int port) |
| get_heap_start | | public int get_heap_start()(Code) | | Returns value of _heap_start global varaible, which is address where VM heap starts.
The provider must be connected to a KDP, see interface description.
The function will throw SocketException unless communication with VM is successful
value of _heap_start global varaible
See Also: MPDataProvider.connect(String hostName,int port) |
| get_heap_top | | public int get_heap_top()(Code) | | Returns value of _heap_top global varaible, which is address where VM heap ends.
The provider must be connected to a KDP, see interface description.
The function will throw SocketException unless communication with VM is successful
value of _heap_top global varaible
See Also: MPDataProvider.connect(String hostName,int port) |
| get_old_gen_end | | public int get_old_gen_end()(Code) | | Returns value of _old_generation_end global varaible,
which is address where old generation of heap objects ends.
The provider must be connected to a KDP, see interface description.
The function will throw SocketException unless communication with VM is successful
value of _old_generation_end global varaible
See Also: MPDataProvider.connect(String hostName,int port) |
| pathFromTheRoot | | public JavaObject[] pathFromTheRoot(JavaObject obj)(Code) | | Returns array of linked JavaObjects, where first one is a root object and last one is the parameter.
The provider must be connected to a KDP, see interface description.
The function will throw SocketException unless communication with VM is successful
Parameters:
obj - array of linked JavaObjects, where first one is a root object and last one is the parameter.
See Also: MPDataProvider.connect(String hostName,int port) |
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