|
Oracle Fusion Middleware Java API Reference for Oracle Extension SDK Reference 11g Release 1 (11.1.1.6.0) E13403-07 |
|||||||||
PREV CLASS NEXT CLASS | FRAMES NO FRAMES | |||||||||
SUMMARY: NESTED | FIELD | CONSTR | METHOD | DETAIL: FIELD | CONSTR | METHOD |
java.lang.Object javax.ide.Service javax.ide.command.CommandProcessor
public abstract class CommandProcessor
The CommandProcessor is responsible for managing the execution of the IDE commands and maintining the undo stack.
In general, all Controller
implementations should use the
IDE command processor to execute the commands that controller handles.
IDE service providers must extend this class and provide an
implementation of the invoke(Command)
method. It is up to the
IDE service provider implementation to decide whether it supports
undo/redo on a per document, or global basis.
If the undo support provided is document based, implementors of this
class must make sure that after a command is executed, the
command processor checks the Command.getAffectedDocuments()
return
value to detemine if other documents were affected by the current command
execution.
If the Command.getAffectedDocuments()
returns one or more items, then
the undo stacks of the affected documents must be flushed in order to
maintain document consistency.
Command
Constructor Summary | |
---|---|
CommandProcessor()
|
Method Summary | |
---|---|
static CommandProcessor |
getCommandProcessor()
Get the command processor implementation for this IDE. |
abstract int |
invoke(Command cmd)
Executes the actions associated with a specific command. |
Methods inherited from class javax.ide.Service |
---|
getService, initialize, resetAllServices |
Methods inherited from class java.lang.Object |
---|
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
Constructor Detail |
---|
public CommandProcessor()
Method Detail |
---|
public abstract int invoke(Command cmd) throws java.lang.Exception
Controller
uses this method to tell the
CommandProcessor
that a command should be executed.
cmd
- the command to execute.
Command.OK
or
Command.CANCEL
.
java.lang.Exception
- if an error occurs processing the command.public static CommandProcessor getCommandProcessor()
|
Oracle Fusion Middleware Java API Reference for Oracle Extension SDK Reference 11g Release 1 (11.1.1.6.0) E13403-07 |
|||||||||
PREV CLASS NEXT CLASS | FRAMES NO FRAMES | |||||||||
SUMMARY: NESTED | FIELD | CONSTR | METHOD | DETAIL: FIELD | CONSTR | METHOD |