Grammar.java 文件源码

public String joinPredicateOperands(SemanticContext.Operator op, String separator) {
    StringBuilder buf = new StringBuilder();
    for (SemanticContext operand : op.getOperands()) {
        if (buf.length() > 0) {
            buf.append(separator);
        }

        buf.append(getSemanticContextDisplayString(operand));
    }

    return buf.toString();
}