Exemplo n.º 1
0
 /*
  * (non-Javadoc)
  * @see com.lexst.db.view.View#getChunkIds()
  */
 @Override
 public Set<Long> getChunkIds() {
   Set<Long> all = new TreeSet<Long>();
   for (IdentitySet set : mapSet.values()) {
     all.addAll(set.keySet());
   }
   return all;
 }
Exemplo n.º 2
0
  /*
   * (non-Javadoc)
   * @see com.lexst.db.view.View#find(com.lexst.db.statement.Condition)
   */
  @Override
  public Set<Long> find(Condition condi) {
    IndexColumn num = condi.getValue();
    if (num == null || num.getClass() != ShortIndex.class) {
      throw new IllegalArgumentException("null pointer or invalid index!");
    }
    short value = ((ShortIndex) num).getValue();

    // 找到范围分片截止点
    HashSet<Long> all = new HashSet<Long>(1024);
    // 列名在左,参数值在右(固定!, 检查可以的范围)
    switch (condi.getCompare()) {
      case Condition.EQUAL:
        for (ShortRange range : mapSet.keySet()) {
          if (range.inside(value)) {
            IdentitySet set = mapSet.get(range);
            all.addAll(set.keySet());
          }
        }
        break;
      case Condition.NOT_EQUAL:
        for (ShortRange range : mapSet.keySet()) {
          if (range.getBegin() != value || range.getEnd() != value) {
            IdentitySet set = mapSet.get(range);
            all.addAll(set.keySet());
          }
        }
        break;
      case Condition.LESS:
        for (ShortRange range : mapSet.keySet()) {
          if (range.getBegin() < value || range.getEnd() < value) {
            IdentitySet set = mapSet.get(range);
            all.addAll(set.keySet());
          }
        }
        break;
      case Condition.LESS_EQUAL:
        for (ShortRange range : mapSet.keySet()) {
          if (range.getBegin() <= value || range.getEnd() <= value) {
            IdentitySet set = mapSet.get(range);
            all.addAll(set.keySet());
          }
        }
        break;
      case Condition.GREATER:
        for (ShortRange range : mapSet.keySet()) {
          if (range.getBegin() > value || range.getEnd() > value) {
            IdentitySet set = mapSet.get(range);
            all.addAll(set.keySet());
          }
        }
        break;
      case Condition.GREATER_EQUAL:
        for (ShortRange range : mapSet.keySet()) {
          if (range.getBegin() >= value || range.getEnd() >= value) {
            IdentitySet set = mapSet.get(range);
            all.addAll(set.keySet());
          }
        }
        break;
      case Condition.LIKE:
        for (IdentitySet set : mapSet.values()) {
          all.addAll(set.keySet());
        }
        break;
    }
    return all;
  }