本文整理了Java中org.zstack.zql.ast.ZQLMetadata类的一些代码示例，展示了ZQLMetadata类的具体用法。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。ZQLMetadata类的具体详情如下：
包路径：org.zstack.zql.ast.ZQLMetadata
类名称：ZQLMetadata

ZQLMetadata介绍

暂无

代码示例

代码示例来源：origin: zstackio/zstack

String toSQL() {
    ZQLMetadata.InventoryMetadata metadata = ZQLMetadata.getInventoryMetadataByName(inventoryClass.getName());
    if (metadata == null) {
      throw new CloudRuntimeException(String.format("cannot find InventoryMetadata for class[%s]", inventoryClass));
    }
    Field primaryKey = EntityMetadata.getPrimaryKeyField(metadata.inventoryAnnotation.mappingVOClass());
    Class mappingInventoryClass = annotation.mappingClass();
    ZQLMetadata.InventoryMetadata mappingInventoryMetadata = ZQLMetadata.getInventoryMetadataByName(mappingInventoryClass.getName());
    String mappingEntityName = mappingInventoryClass.getSimpleName();
    return String.format("%s.%s IN (SELECT %s.%s FROM %s %s WHERE %s.%s %%s %%s)",
        inventoryClass.getSimpleName(), primaryKey.getName(), mappingEntityName,
        annotation.joinColumn().name(), mappingInventoryMetadata.inventoryAnnotation.mappingVOClass().getSimpleName(),
        mappingEntityName, mappingEntityName, annotation.joinColumn().referencedColumnName());
  }
}

代码示例来源：origin: zstackio/zstack

fillInventoryMetadata(clz,
          !expandedQueries.isEmpty() ? expandedQueries  : null,
          !expandedQueryAliases.isEmpty() ? expandedQueryAliases : null,
  fillInventoryMetadata(clz, asList(it), null,  null, null);
});
  fillInventoryMetadata(clz, null, asList(it),  null, null);
});

代码示例来源：origin: zstackio/zstack

@Override
  public List<String> targetFields() {
    ZQLMetadata.InventoryMetadata inventory = ZQLMetadata.findInventoryMetadata(node.getTarget().getEntity());
    List<String> fieldNames = node.getGroupBy() == null ? new ArrayList<>() : node.getGroupBy().getFields();
    fieldNames.forEach(inventory::errorIfNoField);
    return fieldNames;
  }
}

代码示例来源：origin: zstackio/zstack

private Class getQueryTargetInventoryClass(APIQueryMessage msg, Class inventoryClass) {
  Field tf = ZQLMetadata.getTypeFieldOfInventoryClass(inventoryClass);
  if (tf == null) {
    return inventoryClass;
  }
  Optional<QueryCondition> opt = msg.getConditions().stream().filter(c->c.getName().equals(tf.getName())).findFirst();
  if (!opt.isPresent()) {
    return inventoryClass;
  }
  QueryCondition condition = opt.get();
  if (!condition.getOp().equals(QueryOp.EQ.toString())) {
    return inventoryClass;
  }
  return ZQLMetadata.getChildInventoryClassByType(inventoryClass, condition.getValue());
}

代码示例来源：origin: zstackio/zstack

ZQLMetadata.InventoryMetadata src = ZQLMetadata.getInventoryMetadataByName(srcTargetName);
ZQLMetadata.InventoryMetadata dst = ZQLMetadata.findInventoryMetadata(node.getEntity());

代码示例来源：origin: zstackio/zstack

this.value = value;
List<ZQLMetadata.ChainQueryStruct> chainQueries = ZQLMetadata.createChainQuery(queryTargetInventoryName, conditionNames);
if (chainQueries.size() == 1) {
  ZQLMetadata.FieldChainQuery fc = (ZQLMetadata.FieldChainQuery) chainQueries.get(0);

代码示例来源：origin: zstackio/zstack

@Override
public void verify() {
  if (right != null) {
    InventoryMetadata him = getInventoryMetadataByName(right.targetInventoryClass.getName());
    if (!him.hasInventoryField(fieldName)) {
      throw new CloudRuntimeException(String.format("inventory class[%s] not having field[%s]", him.selfInventoryClass, fieldName));
    }
  } else {
    if (!self.hasInventoryField(fieldName)) {
      throw new CloudRuntimeException(String.format("inventory class[%s] not having field[%s]", self.selfInventoryClass, fieldName));
    }
  }
}

代码示例来源：origin: zstackio/zstack

public AbstractQueryVisitorPlugin(ASTNode.Query node) {
  super(node);
  inventory = ZQLMetadata.findInventoryMetadata(node.getTarget().getEntity());
  entityAlias = inventory.simpleInventoryName();
  entityVOName = inventory.inventoryAnnotation.mappingVOClass().getSimpleName();
}

代码示例来源：origin: zstackio/zstack

private String createTagPatternSQL(Class invClz, String fieldName, boolean nestedQuery) {
  ZQLMetadata.InventoryMetadata src = ZQLMetadata.getInventoryMetadataByName(invClz.getName());
  String primaryKey = EntityMetadata.getPrimaryKeyField(src.inventoryAnnotation.mappingVOClass()).getName();
  boolean reserve = TAG_FALSE_OP.containsKey(operator);
  String op = reserve ? TAG_FALSE_OP.get(operator) : operator;
  String subCondition = String.format("pattern.uuid %s ", op + (value == null ? "" : value));
  String filterResourceUuidSQL = String.format("SELECT utag.resourceUuid FROM UserTagVO utag, TagPatternVO pattern" +
      " WHERE %s and utag.tagPatternUuid = pattern.uuid", subCondition);
  String weather_not_in = reserve ? "NOT" : "";
  if (nestedQuery) {
    return String.format("(SELECT %s.%s FROM %s %s WHERE %s.%s %s IN (%s))",
        src.simpleInventoryName(), primaryKey, src.inventoryAnnotation.mappingVOClass().getSimpleName(), src.simpleInventoryName(),
        src.simpleInventoryName(), primaryKey, weather_not_in, filterResourceUuidSQL);
  } else {
    return String.format("(%s.%s %s IN (%s))",
        src.simpleInventoryName(), primaryKey, weather_not_in, filterResourceUuidSQL);
  }
}

代码示例来源：origin: zstackio/zstack

@Override
public List<String> targetFields() {
  ZQLMetadata.InventoryMetadata inventory = ZQLMetadata.findInventoryMetadata(node.getTarget().getEntity());
  List<String> fieldNames = node.getTarget().getFields() == null ? new ArrayList<>() : node.getTarget().getFields();
  fieldNames.forEach(inventory::errorIfNoField);
  return fieldNames;
}

代码示例来源：origin: zstackio/zstack

em.self = self;
em.right = e;
self = getInventoryMetadataByName(em.right.targetInventoryClass.getName());
left = em.right;
ret.add(em);

代码示例来源：origin: zstackio/zstack

ZQLMetadata.InventoryMetadata inventory = ZQLMetadata.findInventoryMetadata(node.getTarget().getEntity());
ret.inventoryMetadata = inventory;
ZQLContext.pushQueryTargetInventoryName(inventory.fullInventoryName());

代码示例来源：origin: zstackio/zstack

ZQLMetadata.InventoryMetadata src = ZQLMetadata.getInventoryMetadataByName(context.getQueryTargetInventoryName());

代码示例来源：origin: zstackio/zstack

@Override
  public String visit(ASTNode.SubQuery node) {
    ZQLMetadata.InventoryMetadata inventory = ZQLMetadata.findInventoryMetadata(node.getTarget().getEntity());
    ZQLContext.pushQueryTargetInventoryName(inventory.fullInventoryName());

    String fieldName = node.getTarget().getFields() == null || node.getTarget().getFields().isEmpty() ? "" : node.getTarget().getFields().get(0);
    if (fieldName != "") {
      inventory.errorIfNoField(fieldName);
    }

    String entityAlias = inventory.simpleInventoryName();
    String queryTarget = fieldName.equals("") ? entityAlias : String.format("%s.%s", inventory.simpleInventoryName(), fieldName);
    String entityVOName = inventory.inventoryAnnotation.mappingVOClass().getSimpleName();

    List<String> clauses = new ArrayList<>();
    clauses.add(String.format("SELECT %s FROM %s %s", queryTarget, entityVOName, entityAlias));
    String condition = makeConditions(node);
    if (!condition.equals("")) {
      clauses.add("WHERE");
      clauses.add(condition);
    }

    ZQLContext.popQueryTargetInventoryName();
    return String.format("(%s)", StringUtils.join(clauses, " "));
  }
}

代码示例来源：origin: zstackio/zstack

@Override
  public String visit(ASTNode.OrderBy node) {
    if (!node.getDirection().equalsIgnoreCase("asc") && !node.getDirection().equalsIgnoreCase("desc")) {
      throw new ZQLError(Platform.i18n("invalid order by clause, expect direction[asc,desc] but got %s", node.getDirection()));
    }

    String inventoryName = ZQLContext.peekQueryTargetInventoryName();
    ZQLMetadata.InventoryMetadata m = ZQLMetadata.getInventoryMetadataByName(inventoryName);
    if (!m.hasInventoryField(node.getField())) {
      throw new ZQLError(Platform.i18n("invalid order by clause, inventory[%s] doesn't have field[%s]", m.simpleInventoryName(), node.getField()));
    }

    return String.format("ORDER BY %s %s", node.getField(), node.getDirection().toUpperCase());
  }
}

代码示例来源：origin: zstackio/zstack

@Override
  public String groupBy() {
    if (node.getGroupBy() == null) {
      return null;
    }

    List<String> fs = node.getGroupBy().getFields();
    ZQLMetadata.InventoryMetadata inventory = ZQLMetadata.findInventoryMetadata(node.getTarget().getEntity());
    fs.forEach(inventory::errorIfNoField);
    return node.getGroupBy() == null ? null : (String) node.getGroupBy().accept(new GroupByVisitor());
  }
}

代码示例来源：origin: zstackio/zstack

ZQLMetadata.InventoryMetadata src = ZQLMetadata.getInventoryMetadataByName(context.getQueryTargetInventoryName());
String accountUuid = context.getAPISession().getAccountUuid();
if (AccountConstant.INITIAL_SYSTEM_ADMIN_UUID.equals(accountUuid)) {