Module openj9.dtfjview

Package com.ibm.jvm.dtfjview

Class JdmpviewContextManager

java.lang.Object

com.ibm.jvm.dtfjview.JdmpviewContextManager

All Implemented Interfaces:

ISessionContextManager

public class JdmpviewContextManager
extends Object
implements ISessionContextManager

Class for managing jdmpview contexts as it is possible to add and remove contexts without exiting the application.

Constructor Summary

Constructors

Constructor	Description
JdmpviewContextManager()

Method Summary

Modifier and Type	Method	Description
ICombinedContext	createContext(Image image, int major, int minor, ImageAddressSpace space, ImageProcess proc, JavaRuntime rt)	Create a new context from DTFJ.
ICombinedContext	getContext(int id)	Gets the context with the specified ID.
Map<URI,ArrayList<ICombinedContext>>	getContexts()	Lists all contexts keyed by the URI from which they were derived.
boolean	hasChanged()	A number of internal operations which could affect the list of currently open and available contexts happen in an unlinked or asynchronous manner.
boolean	hasMultipleContexts()	Convenience method for determining if more than one context is currently open.
void	removeAllContexts()	Close and remove all contexts from this manager.
void	removeContexts(Image image)	Remove all contexts which have been derived from an image source.
void	removeContexts(URI source)	Remove all contexts which have been defined as coming from a specified URI (note that the URI may or may not be a file URI).

Methods declared in class java.lang.Object

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

Constructor Details

JdmpviewContextManager

public JdmpviewContextManager()

Method Details

createContext

public ICombinedContext createContext(Image image,
 int major,
 int minor,
 ImageAddressSpace space,
 ImageProcess proc,
 JavaRuntime rt)

Create a new context from DTFJ.

Parameters:

image - the DTFJ Image

major - the DTFJ API major number

minor - the DTFJ API minor number

space - DTFJ address space

proc - DTFJ process

rt - DTFJ JavaRuntime

Returns:

the newly created context

removeContexts

public void removeContexts(Image image)

Description copied from interface: ISessionContextManager

Remove all contexts which have been derived from an image source. e.g. if there are multiple JVMs in a single core then closing the core file would result in all images derived from that file also being closed.

Specified by:

removeContexts in interface ISessionContextManager

Parameters:

image - the source image from which derived contexts should be closed.

removeContexts

public void removeContexts(URI source)

Description copied from interface: ISessionContextManager

Remove all contexts which have been defined as coming from a specified URI (note that the URI may or may not be a file URI).

Specified by:

removeContexts in interface ISessionContextManager

removeAllContexts

public void removeAllContexts()

Description copied from interface: ISessionContextManager

Close and remove all contexts from this manager.

Specified by:

removeAllContexts in interface ISessionContextManager

getContexts

public Map<URI,ArrayList<ICombinedContext>> getContexts()

Description copied from interface: ISessionContextManager

Lists all contexts keyed by the URI from which they were derived.

Specified by:

getContexts in interface ISessionContextManager

Returns:

map of URI's to contexts

hasMultipleContexts

public boolean hasMultipleContexts()

Description copied from interface: ISessionContextManager

Convenience method for determining if more than one context is currently open. It is a less expensive call than getContexts()

Specified by:

hasMultipleContexts in interface ISessionContextManager

Returns:

true if more than one context is currently open and available

getContext

public ICombinedContext getContext(int id)

Description copied from interface: ISessionContextManager

Gets the context with the specified ID.

Specified by:

getContext in interface ISessionContextManager

Parameters:

id - the context ID

Returns:

the located context or null if it was not found

hasChanged

public boolean hasChanged()

Description copied from interface: ISessionContextManager

A number of internal operations which could affect the list of currently open and available contexts happen in an unlinked or asynchronous manner. By calling this method the session (or external clients) are able to tell if the list of contexts has changed and anything related to this such as a display may need to be update.

Specified by:

hasChanged in interface ISessionContextManager

Returns: