Files
design-patterns/03-behavioral/command/InsertCommand.java

18 lines
602 B
Java

package command;
public class InsertCommand implements Command {
private final TextEditor editor;
private final String text;
private final int position;
public InsertCommand(TextEditor editor, String text, int position) {
this.editor = editor;
this.text = text;
this.position = position;
}
@Override public void execute() { editor.insertText(text, position); }
@Override public void undo() { editor.deleteText(position, text.length()); }
@Override public String getDescription() { return "Insert \"" + text + "\" at " + position; }
}