com.baidu.hugegraph.backend.query.Query.ids()方法的使用及代码示例

x33g5p2x  于2022-01-28 转载在 其他  
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本文整理了Java中com.baidu.hugegraph.backend.query.Query.ids方法的一些代码示例，展示了Query.ids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。Query.ids方法的具体详情如下：
包路径：com.baidu.hugegraph.backend.query.Query
类名称：Query
方法名：ids

Query.ids介绍

暂无

代码示例

代码示例来源：origin: hugegraph/hugegraph

public boolean empty() {
  return this.ids().isEmpty() && this.conditions().isEmpty();
}

代码示例来源：origin: hugegraph/hugegraph

@Override
public int hashCode() {
  return this.resultType.hashCode() ^
      this.orders.hashCode() ^
      Long.hashCode(this.offset) ^
      Long.hashCode(this.limit) ^
      Objects.hashCode(this.page) ^
      this.ids().hashCode() ^
      this.conditions().hashCode();
}

代码示例来源：origin: hugegraph/hugegraph

@Override
public boolean equals(Object object) {
  if (!(object instanceof Query)) {
    return false;
  }
  Query other = (Query) object;
  return this.resultType.equals(other.resultType) &&
      this.orders.equals(other.orders) &&
      this.offset == other.offset &&
      this.limit == other.limit &&
      ((this.page == null && other.page == null) ||
      this.page.equals(other.page)) &&
      this.ids().equals(other.ids()) &&
      this.conditions().equals(other.conditions());
}

代码示例来源：origin: hugegraph/hugegraph

@Override
protected Iterator<HugeVertex> queryVerticesFromBackend(Query query) {
  if (!query.ids().isEmpty() && query.conditions().isEmpty()) {
    return this.queryVerticesByIds((IdQuery) query);
  } else {
    return super.queryVerticesFromBackend(query);
  }
}

代码示例来源：origin: hugegraph/hugegraph

protected List<Select> queryId2Select(Query query, Select select) {
  if (query.ids().isEmpty()) {
    return ImmutableList.of(select);
  List<List<Object>> ids = new ArrayList<>(query.ids().size());
  for (Id id : query.ids()) {
    List<Object> idParts = this.idColumnValue(id);
    if (nameParts.size() != idParts.size()) {

代码示例来源：origin: hugegraph/hugegraph

protected List<StringBuilder> queryId2Select(Query query,
                       StringBuilder select) {
  if (query.ids().isEmpty()) {
    return ImmutableList.of(select);
  List<List<Object>> ids = new ArrayList<>(query.ids().size());
  for (Id id : query.ids()) {
    List<Object> idParts = this.idColumnValue(id);
    if (nameParts.size() != idParts.size()) {

代码示例来源：origin: hugegraph/hugegraph

protected Iterator<HugeEdge> queryEdgesFromBackend(Query query) {
  assert query.resultType().isEdge();
  Iterator<BackendEntry> entries = this.query(query);
  return new FlatMapperIterator<>(entries, entry -> {
    // Edges are in a vertex
    HugeVertex vertex = this.serializer.readVertex(graph(), entry);
    assert vertex != null;
    if (query.ids().size() == 1) {
      assert vertex.getEdges().size() == 1;
    }
    // Copy to avoid ConcurrentModificationException when removing edge
    return ImmutableList.copyOf(vertex.getEdges()).iterator();
  });
}

代码示例来源：origin: hugegraph/hugegraph

if (!query.ids().isEmpty()) {
    throw new BackendException("Not supported query edge by id " +
                  "and by condition at the same time");
if (query instanceof IdQuery && !query.ids().isEmpty()) {
  IdQuery result = (IdQuery) query.copy();
  result.resetIds();
  for (Id id : query.ids()) {
    result.query(this.writeQueryId(type, id));

代码示例来源：origin: hugegraph/hugegraph

assert !query.ids().isEmpty();
RowIterator rowIterator = null;
if (query.ids().size() == 1) {
  Id id = query.ids().iterator().next();
  rowIterator = this.queryById(session, id);
} else {
  rowIterator = this.queryByIds(session, query.ids());

代码示例来源：origin: hugegraph/hugegraph

if (q.getClass() == IdQuery.class && !q.ids().isEmpty()) {
  ids.query(q.ids());
} else if (!q.empty()) {

代码示例来源：origin: hugegraph/hugegraph

assert !query.ids().isEmpty();
ExtendableIterator<BackendEntry> rs = new ExtendableIterator<>();
for (Id id : query.ids()) {
  rs.extend(newEntryIterator(this.queryById(session, id), query));

代码示例来源：origin: hugegraph/hugegraph

if (!query.ids().isEmpty()) {
  rs = this.queryById(query.ids(), rs);

代码示例来源：origin: com.baidu.hugegraph/hugegraph-core

public boolean empty() {
  return this.ids().isEmpty() && this.conditions().isEmpty();
}

代码示例来源：origin: com.baidu.hugegraph/hugegraph-core

@Override
public int hashCode() {
  return this.resultType.hashCode() ^
      this.orders.hashCode() ^
      Long.hashCode(this.offset) ^
      Long.hashCode(this.limit) ^
      Objects.hashCode(this.page) ^
      this.ids().hashCode() ^
      this.conditions().hashCode();
}

代码示例来源：origin: com.baidu.hugegraph/hugegraph-core

@Override
public boolean equals(Object object) {
  if (!(object instanceof Query)) {
    return false;
  }
  Query other = (Query) object;
  return this.resultType.equals(other.resultType) &&
      this.orders.equals(other.orders) &&
      this.offset == other.offset &&
      this.limit == other.limit &&
      ((this.page == null && other.page == null) ||
      this.page.equals(other.page)) &&
      this.ids().equals(other.ids()) &&
      this.conditions().equals(other.conditions());
}

代码示例来源：origin: com.baidu.hugegraph/hugegraph-core

@Override
protected Iterator<HugeVertex> queryVerticesFromBackend(Query query) {
  if (!query.ids().isEmpty() && query.conditions().isEmpty()) {
    return this.queryVerticesByIds((IdQuery) query);
  } else {
    return super.queryVerticesFromBackend(query);
  }
}

代码示例来源：origin: com.baidu.hugegraph/hugegraph-core

protected Iterator<HugeEdge> queryEdgesFromBackend(Query query) {
  assert query.resultType().isEdge();
  Iterator<BackendEntry> entries = this.query(query);
  return new FlatMapperIterator<>(entries, entry -> {
    // Edges are in a vertex
    HugeVertex vertex = this.serializer.readVertex(graph(), entry);
    assert vertex != null;
    if (query.ids().size() == 1) {
      assert vertex.getEdges().size() == 1;
    }
    // Copy to avoid ConcurrentModificationException when removing edge
    return ImmutableList.copyOf(vertex.getEdges()).iterator();
  });
}

代码示例来源：origin: com.baidu.hugegraph/hugegraph-core

if (!query.ids().isEmpty()) {
    throw new BackendException("Not supported query edge by id " +
                  "and by condition at the same time");
if (query instanceof IdQuery && !query.ids().isEmpty()) {
  IdQuery result = (IdQuery) query.copy();
  result.resetIds();
  for (Id id : query.ids()) {
    result.query(this.writeQueryId(type, id));

代码示例来源：origin: com.baidu.hugegraph/hugegraph-rocksdb

@Override
public Iterator<BackendEntry> query(Session session, Query query) {
  if (query.limit() == 0 && query.limit() != Query.NO_LIMIT) {
    LOG.debug("Return empty result(limit=0) for query {}", query);
    return ImmutableList.<BackendEntry>of().iterator();
  }
  // Query all
  if (query.empty()) {
    return newEntryIterator(this.queryAll(session, query), query);
  }
  // Query by id
  if (query.conditions().isEmpty()) {
    assert !query.ids().isEmpty();
    ExtendableIterator<BackendEntry> rs = new ExtendableIterator<>();
    for (Id id : query.ids()) {
      rs.extend(newEntryIterator(this.queryById(session, id), query));
    }
    return rs;
  }
  // Query by condition (or condition + id)
  ConditionQuery cq = (ConditionQuery) query;
  return newEntryIterator(this.queryByCond(session, cq), query);
}

代码示例来源：origin: com.baidu.hugegraph/hugegraph-core

/**
 *  Mapping query-type to table-type
 * @param query origin query
 * @return corresponding table type
 */
public static HugeType tableType(Query query) {
  HugeType type = query.resultType();
  // Mapping EDGE to EDGE_OUT/EDGE_IN
  if (type == HugeType.EDGE) {
    // We assume query OUT edges
    type = HugeType.EDGE_OUT;
    if (!query.ids().isEmpty() && query instanceof IdQuery &&
      query.originQuery() != null) {
      /*
       * Some backends may trans ConditionQuery to IdQuery like
       * RocksDB, so we should get the origin query
       */
      query = query.originQuery();
    }
    if (!query.conditions().isEmpty() &&
      query instanceof ConditionQuery) {
      ConditionQuery cq = (ConditionQuery) query;
      // Does query IN edges
      if (cq.condition(HugeKeys.DIRECTION) == Directions.IN) {
        type = HugeType.EDGE_IN;
      }
    }
  }
  return type;
}

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