this.steps.put( JOIN_NODE,
new JoinNodeStep( this.reteTesterHelper ) );
this.steps.put( NOT_NODE,
new NotNodeStep( this.reteTesterHelper ) );
this.steps.put( EXISTS_NODE,
new ExistsNodeStep( this.reteTesterHelper ) );
this.steps.put( ACCUMULATE_NODE,
new AccumulateNodeStep( this.reteTesterHelper ) );
this.steps.put( RULE_TERMINAL_NODE,
new RuleTerminalNodeStep( this.reteTesterHelper ) );
this.steps.put( EVAL_NODE,