Evaluates a internal::DataSource<bool> in a command. More...
#include <rtt/scripting/TryCommand.hpp>
Public Types | |
|
typedef boost::shared_ptr < ActionInterface > | shared_ptr |
| Use this type for shared pointer storage of an ActionInterface object. | |
Public Member Functions | |
| EvalCommand (internal::DataSource< bool >::shared_ptr ds, internal::AssignableDataSource< bool >::shared_ptr cache=0) | |
| void | readArguments () |
| This is invoked some time before execute() at a time when the action may read its function arguments. | |
| bool | execute () |
| Execute the functionality of this action. | |
| void | reset () |
| Reset this action. | |
|
internal::AssignableDataSource < bool >::shared_ptr | cache () |
| base::ActionInterface * | clone () const |
| The Clone Software Pattern. | |
| base::ActionInterface * | copy (std::map< const base::DataSourceBase *, base::DataSourceBase * > &alreadyCloned) const |
| When copying an Orocos program, we want identical internal::DataSource's to be mapped to identical DataSources, in order for the program to work correctly. | |
| virtual bool | valid () const |
| Inspect if this action was executed and valid. | |
Detailed Description
Evaluates a internal::DataSource<bool> in a command.
The result will be evaluated in a EvalCommandResult, so this Command returns always true : ie the evaluation itself always succeeds. An EvalCommand should never be dispatched, since the EvalCommandResult assumes the EvalCommand has been executed when evaluated.
- See also:
- EvalCommandResult
Definition at line 127 of file TryCommand.hpp.
Member Function Documentation
| ActionInterface * RTT::EvalCommand::copy | ( | std::map< const base::DataSourceBase *, base::DataSourceBase * > & | alreadyCloned | ) | const [virtual] |
When copying an Orocos program, we want identical internal::DataSource's to be mapped to identical DataSources, in order for the program to work correctly.
This is different from the clone function, where we simply want a new Action that can replace the old one directly.
This function takes a map that maps the old internal::DataSource's onto their new replacements. This way, it is possible to check before cloning a internal::DataSource, whether it has already been copied, and if so, reuse the existing copy.
To keep old source working, the standard implementation of this function simply calls the clone function. If your ActionInterface uses a internal::DataSource, it is important that you reimplement this function correctly though.
Reimplemented from RTT::base::ActionInterface.
Definition at line 161 of file TryCommand.cpp.
References RTT::internal::DataSource< T >::copy(), and RTT::internal::AssignableDataSource< T >::copy().
| bool RTT::EvalCommand::execute | ( | ) | [virtual] |
Execute the functionality of this action.
- Returns:
- true if the action was accepted, false otherwise
Implements RTT::base::ActionInterface.
Definition at line 142 of file TryCommand.cpp.
References RTT::internal::AssignableDataSource< T >::set(), and RTT::internal::DataSource< T >::value().
| void RTT::EvalCommand::reset | ( | ) | [virtual] |
Reset this action.
Must be used after execute() failed.
Reimplemented from RTT::base::ActionInterface.
Definition at line 147 of file TryCommand.cpp.
References RTT::base::DataSourceBase::reset(), and RTT::internal::AssignableDataSource< T >::set().
| bool RTT::ActionInterface::valid | ( | ) | const [virtual, inherited] |
Inspect if this action was executed and valid.
This method may not be called before execute(). The default implementation returns always true, i.e. after execute(), it was executed. Override this method if it has more complex state semantics.
Reimplemented in RTT::scripting::CallFunction, RTT::scripting::CommandComposite, and RTT::scripting::TryCommand.
Definition at line 53 of file ActionInterface.cpp.
Referenced by RTT::scripting::VertexNode::isValid(), and RTT::scripting::TryCommand::valid().
The documentation for this class was generated from the following files:
- rtt/scripting/TryCommand.hpp
- rtt/scripting/TryCommand.cpp
