org.eclipse.emf.edit.provider
Class WrapperItemProvider.WrappingCopyCommand

java.lang.Object
  org.eclipse.emf.common.command.AbstractCommand
      org.eclipse.emf.common.command.CommandWrapper
          org.eclipse.emf.edit.provider.WrapperItemProvider.WrappingCopyCommand

All Implemented Interfaces:

Command

Enclosing class:

WrapperItemProvider

protected abstract class WrapperItemProvider.WrappingCopyCommand
extends CommandWrapper

A command base class for copying the wrapper for a value that is partly copied by another command. This is useful when the value includes a model object that is able provide an adapter to return a copy command, but also includes an element that is not adaptable, such as a feature map entry. This command copies the non-adapter element and the wrapper, which ensures the copy can be copied again.

Nested Class Summary

Nested classes/interfaces inherited from class org.eclipse.emf.common.command.AbstractCommand

AbstractCommand.NonDirtying

Field Summary

protected java.util.Collection<?>	affectedObjects
protected java.util.Collection<?>	result

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

command

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

description, isExecutable, isPrepared, label

Constructor Summary

WrapperItemProvider.WrappingCopyCommand(Command command)
Creates an instance where some adaptable value is copied by the given command.

Method Summary

abstract IWrapperItemProvider	copy() Concrete subclasses must implement this to copy and return the value and wrapper.
void	execute() Executes the adaptable-value-copying command, then calls copy to copy the rest of the value and the wrapper, disposes the copy, and sets it to be the result of the command.
java.util.Collection<?>	getAffectedObjects() Returns a list containing only the original wrapper itself.
java.util.Collection<?>	getResult() If the command has executed, returns a list containing only the copy of the wrapper.

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

canUndo, createCommand, dispose, getCommand, getDescription, getLabel, prepare, redo, toString, undo

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

canExecute, chain, setDescription, setLabel

Methods inherited from class java.lang.Object

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

Field Detail

result

protected java.util.Collection<?> result

affectedObjects

protected java.util.Collection<?> affectedObjects

Constructor Detail

WrapperItemProvider.WrappingCopyCommand

public WrapperItemProvider.WrappingCopyCommand(Command command)

Creates an instance where some adaptable value is copied by the given command.

Method Detail

execute

public void execute()

Executes the adaptable-value-copying command, then calls copy to copy the rest of the value and the wrapper, disposes the copy, and sets it to be the result of the command. Since the copy has not been created within the viewed model, it should never do any kind of notification, which is why it is immediately disposed.

Specified by:

execute in interface Command

Overrides:

execute in class CommandWrapper

copy

public abstract IWrapperItemProvider copy()

Concrete subclasses must implement this to copy and return the value and wrapper. The result of the adaptable-value-copying command is available from getCommand().getResult().

getResult

public java.util.Collection<?> getResult()

If the command has executed, returns a list containing only the copy of the wrapper.

Specified by:

getResult in interface Command

Overrides:

getResult in class CommandWrapper

Returns:

the result.

getAffectedObjects

public java.util.Collection<?> getAffectedObjects()

Returns a list containing only the original wrapper itself.

Specified by:

getAffectedObjects in interface Command

Overrides:

getAffectedObjects in class CommandWrapper

Returns:

the result.