AbstractPQLQuery.java 文件源码

protected PQLTrace interpretInsertTrace(ParseTree tree) {
    PQLTrace trace = new PQLTrace();

    for (int i = 0; i < tree.getChildCount(); i++) {
        ParseTree child = tree.getChild(i).getChild(0); //getting a task or '*'

        if(child instanceof RuleNode) {
            int ruleIndex = ((RuleNode)child).getRuleContext().getRuleIndex();

            if (ruleIndex == PQLParser.RULE_task) { //is task 
                trace.addTask(this.interpretTask(child));
            }
            else { // is '*'
                trace.addTask(this.interpretTraceUniverse());
                trace.setHasAsterisk(true);
            } 
        }
    }

    return trace;

}