Package org.eclipse.glsp.server.emf

Interface EMFOperationHandler<O extends Operation>

All Superinterfaces:

OperationHandler

All Known Implementing Classes:

AbstractEMFCreateEdgeOperationHandler, AbstractEMFCreateNodeOperationHandler, AbstractEMFCreateOperationHandler, AbstractEMFOperationHandler, EMFChangeBoundsOperationHandler, EMFCompoundOperationHandler

public interface EMFOperationHandler<O extends Operation>
extends OperationHandler

OperationHandler for EMF source models that creates commands to be executed on the command stack.

Method Summary

Modifier and Type	Method	Description
java.util.Optional<org.eclipse.emf.common.command.Command>	createCommand(O operation)	Creates a command that performs the operation in the EMF source model(s).
default void	execute(Operation operation)
default java.util.Optional<org.eclipse.emf.common.command.Command>	getCommand(Operation operation)
static java.util.Optional<org.eclipse.emf.common.command.Command>	getCommand(OperationHandlerRegistry registry, Operation operation)	Returns the matching EMF command for the given operation.
java.lang.Class<O>	getHandledOperationType()
static <O extends Operation> java.util.Optional<EMFOperationHandler<O>>	getOperationHandler(OperationHandlerRegistry registry, O operation)	Returns the EMF operation handler for the given operation from the given operation handler registry.

Methods inherited from interface org.eclipse.glsp.server.operations.OperationHandler

getLabel, handles

Method Detail

getHandledOperationType

java.lang.Class<O> getHandledOperationType()

Specified by:

getHandledOperationType in interface OperationHandler

getCommand

default java.util.Optional<org.eclipse.emf.common.command.Command> getCommand(Operation operation)

Returns:

the command to be applied to the EMF source model on the command stack for the given operation.

createCommand

java.util.Optional<org.eclipse.emf.common.command.Command> createCommand(O operation)

Creates a command that performs the operation in the EMF source model(s).

Parameters:

operation - The operation to process.

Returns:

The created command to be executed on the command stack.

execute

default void execute(Operation operation)

Specified by:

execute in interface OperationHandler

getOperationHandler

static <O extends Operation> java.util.Optional<EMFOperationHandler<O>> getOperationHandler(OperationHandlerRegistry registry,
                                                                                            O operation)

Returns the EMF operation handler for the given operation from the given operation handler registry.

Type Parameters:

O - operation type

Parameters:

registry - operation handler registry

operation - operation

Returns:

the matching EMF operation handler from the registry or empty if no such handler is found

getCommand

static java.util.Optional<org.eclipse.emf.common.command.Command> getCommand(OperationHandlerRegistry registry,
                                                                             Operation operation)

Returns the matching EMF command for the given operation.

Parameters:

registry - operation handler registry

operation - operation

Returns:

the matching EMF command for the given operation