edu.rice.cs.drjava.model.repl
Class InteractionsScriptModel

java.lang.Object
  edu.rice.cs.drjava.model.repl.InteractionsScriptModel

public class InteractionsScriptModel
extends Object

Manages the execution of a Interactions History as a script of individual commands. Useful for presentations.

Version:

$Id: InteractionsScriptModel.java 5175 2010-01-20 08:46:32Z mgricken $

Field Summary

private int	_currentInteraction The index into the list of the current interaction.
private InteractionsDocument	_doc The interactions document.
private List<String>	_interactions The interactions to perform.
private InteractionsModel	_model The interactions model associated with the script.
private boolean	_passedCurrent Indicates whether the iterator has "passed" the current interaction, which is the case after an execution.

Constructor Summary

InteractionsScriptModel(InteractionsModel model, List<String> interactions)
Constructs a new interactions script using the given model and interactions.

Method Summary

private void	_showCurrentInteraction() Clears the current text at the prompt and shows the current interaction from the script.
void	executeInteraction() Executes the current interaction.
boolean	hasNextInteraction()
boolean	hasPrevInteraction()
void	nextInteraction() Enters the next interaction into the interactions pane.
void	prevInteraction() Enters the previous interaction into the interactions pane.

Methods inherited from class java.lang.Object

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

Field Detail

_model

private volatile InteractionsModel _model

The interactions model associated with the script.

_doc

private volatile InteractionsDocument _doc

The interactions document.

_interactions

private volatile List<String> _interactions

The interactions to perform.

_currentInteraction

private volatile int _currentInteraction

The index into the list of the current interaction.

_passedCurrent

private volatile boolean _passedCurrent

Indicates whether the iterator has "passed" the current interaction, which is the case after an execution. In this state, "next" will show the interaction after our index, and "prev" will show the interaction at our index (which was mostrecently executed).

Constructor Detail

InteractionsScriptModel

public InteractionsScriptModel(InteractionsModel model,
                               List<String> interactions)

Constructs a new interactions script using the given model and interactions.

Parameters:

model - the interactions model

interactions - the interactions that make up the script.

Method Detail

nextInteraction

public void nextInteraction()

Enters the next interaction into the interactions pane. Should only run in the event thread.

prevInteraction

public void prevInteraction()

Enters the previous interaction into the interactions pane. Should only run in the event thread.

_showCurrentInteraction

private void _showCurrentInteraction()

Clears the current text at the prompt and shows the current interaction from the script. Should only run in the event thread. Assumes that write lock is already held.

executeInteraction

public void executeInteraction()

Executes the current interaction. Should only run in the event thread. After this call, we have passed the current interaction.

hasNextInteraction

public boolean hasNextInteraction()

Returns:

true iff this script has another interaction to perform.

hasPrevInteraction

public boolean hasPrevInteraction()

Returns:

true iff this script has a previous interaction to perform.