org.eclipse.emf.mapping.command
Class PersistentCommandStack

java.lang.Object
  org.eclipse.emf.common.command.BasicCommandStack
      org.eclipse.emf.mapping.command.PersistentCommandStack

All Implemented Interfaces:

CommandStack

public class PersistentCommandStack
extends BasicCommandStack

This implementation of a command stack records the command class and command parameter used to create each command. This information can be used to create and execute all the commands again in a different session.

Nested Class Summary

static class	PersistentCommandStack.CommandCreationRecord This records and encodes the command class and command parameter.
static class	PersistentCommandStack.Decoder
static class	PersistentCommandStack.Encoder

Field Summary

protected java.lang.ClassLoader	classLoader
protected java.util.HashMap<Command,PersistentCommandStack.CommandCreationRecord>	commandCreationMap This keeps track of the mapping between commands and their PersistentCommandStack.CommandCreationRecords.
protected MappingDomain	domain
protected java.lang.String	encoding

Fields inherited from class org.eclipse.emf.common.command.BasicCommandStack

commandList, listeners, mostRecentCommand, saveIndex, top

Constructor Summary

PersistentCommandStack(java.lang.ClassLoader classLoader)
This constructs and instance of a command stack that records commands using a persistent encoding.

Method Summary

protected PersistentCommandStack.Decoder	createDecoder(MappingRoot mappingRoot, ResourceSet resourceSet, java.lang.ClassLoader classLoader) You can overide this to create your own type of decoder.
protected PersistentCommandStack.Encoder	createEncoder() You can overide this to create your own type of encoder.
void	execute(Command command) This override of execute calls PersistentCommandStack.CommandCreationRecord.encode(org.eclipse.emf.mapping.command.PersistentCommandStack.Encoder) just before normal execution by super.
protected void	executeEncoding()
java.lang.String	getEncoding()
void	handleCreateCommand(java.lang.Class<? extends Command> commandClass, CommandParameter commandParameter, Command command) This is called by the mapping domain whenever a command (that may subsequently be executed) is created.
void	setEncoding(MappingDomain domain, java.lang.String encoding)

Methods inherited from class org.eclipse.emf.common.command.BasicCommandStack

addCommandStackListener, canRedo, canUndo, flush, getMostRecentCommand, getRedoCommand, getUndoCommand, handleError, isSaveNeeded, notifyListeners, redo, removeCommandStackListener, saveIsDone, undo

Methods inherited from class java.lang.Object

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

Field Detail

commandCreationMap

protected java.util.HashMap<Command,PersistentCommandStack.CommandCreationRecord> commandCreationMap

This keeps track of the mapping between commands and their PersistentCommandStack.CommandCreationRecords.

domain

protected MappingDomain domain

classLoader

protected java.lang.ClassLoader classLoader

encoding

protected java.lang.String encoding

Constructor Detail

PersistentCommandStack

public PersistentCommandStack(java.lang.ClassLoader classLoader)

This constructs and instance of a command stack that records commands using a persistent encoding.

Method Detail

handleCreateCommand

public void handleCreateCommand(java.lang.Class<? extends Command> commandClass,
                                CommandParameter commandParameter,
                                Command command)

This is called by the mapping domain whenever a command (that may subsequently be executed) is created.

createEncoder

protected PersistentCommandStack.Encoder createEncoder()

You can overide this to create your own type of encoder.

createDecoder

protected PersistentCommandStack.Decoder createDecoder(MappingRoot mappingRoot,
                                                       ResourceSet resourceSet,
                                                       java.lang.ClassLoader classLoader)

You can overide this to create your own type of decoder.

execute

public void execute(Command command)

This override of execute calls PersistentCommandStack.CommandCreationRecord.encode(org.eclipse.emf.mapping.command.PersistentCommandStack.Encoder) just before normal execution by super.

Specified by:

execute in interface CommandStack

Overrides:

execute in class BasicCommandStack

Parameters:

command - the command to execute.

getEncoding

public java.lang.String getEncoding()

setEncoding

public void setEncoding(MappingDomain domain,
                        java.lang.String encoding)

executeEncoding

protected void executeEncoding()