Provides the necessary tools for evaluating a condition according to the IWIR specification. Following simplified example depicts the general usage:
WhileTask t = new WhileTask("while");
t.addInputPort(new InputPort("in",SimpleType.INTEGER));
t.setCondition(new ConditionExpression("in = 2"));
...	
t.setPortValue("in", 2);
Then
t.getCondition().eval();
returns true. See classes for more information.