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javax.xml.xquery.XQSequence.count()方法的使用及代码示例

转载 作者:知者 更新时间:2024-03-19 15:38:40 26 4
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本文整理了Java中javax.xml.xquery.XQSequence.count()方法的一些代码示例,展示了XQSequence.count()的具体用法。这些代码示例主要来源于Github/Stackoverflow/Maven等平台,是从一些精选项目中提取出来的代码,具有较强的参考意义,能在一定程度帮忙到你。XQSequence.count()方法的具体详情如下:
包路径:javax.xml.xquery.XQSequence
类名称:XQSequence
方法名:count

XQSequence.count介绍

[英]Returns a number indicating the number of items in the sequence.
[中]返回一个数字,该数字指示序列中的项目数。

代码示例

代码示例来源:origin: dsukhoroslov/bagri

@Override
public void write(ObjectDataOutput out, XQSequence sequence) throws IOException {
  try {
    List<XQItemAccessor> items;
    synchronized (sequence) {
      if (sequence.isScrollable()) {
        sequence.beforeFirst();
        items = new ArrayList<>(sequence.count());
      } else {
        items = new ArrayList<>();
      }
      while (sequence.next()) {
        Object value = sequence.getObject();
        if (value instanceof XQItemAccessor) {
          items.add((XQItemAccessor) value);
        } else {
          items.add(sequence.getItem());
        }
      }
    }
    logger.trace("write; writing {} items", items.size());
    out.writeObject(items);
  } catch (XQException ex) {
    throw new IOException(ex);
  }
}

代码示例来源:origin: dsukhoroslov/bagri

public static Map<String, Object> mapFromSequence(XQSequence cs) throws XQException {
  Map<String, Object> result;
  synchronized (cs) {
    if (cs.isScrollable()) {
      cs.beforeFirst();
      result = new HashMap<>(cs.count());
    } else {
      result = new HashMap<>();
    }
    
    while (cs.next()) {
      XQSequence pair = (XQSequence) cs.getObject();
      pair.beforeFirst();
      pair.next();
      String key = pair.getAtomicValue();
      pair.next();
      Object value = pair.getObject();
      result.put(key, value);
    }
  }
    return result;
}

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