Struct QueryEngine 

pub struct QueryEngine<'a> { /* private fields */ }

查询条件构建器

Implementations

impl<'a> QueryEngine<'a>

pub fn new(pool: &'a NodePool) -> QueryEngine<'a>

创建新的查询引擎实例

pub fn by_type(self, node_type: &'a str) -> QueryEngine<'a>

按节点类型查询

pub fn by_attr(self, key: &'a str, value: &'a Value) -> QueryEngine<'a>

按属性值查询

pub fn by_mark(self, mark_type: &'a str) -> QueryEngine<'a>

按标记查询

pub fn by_child_count(self, count: usize) -> QueryEngine<'a>

按子节点数量查询

pub fn by_depth(self, depth: usize) -> QueryEngine<'a>

按深度查询

pub fn by_ancestor_type(self, ancestor_type: &'a str) -> QueryEngine<'a>

按祖先节点类型查询

pub fn by_descendant_type(self, descendant_type: &'a str) -> QueryEngine<'a>

按后代节点类型查询

pub fn find_all(&self) -> Vec<Arc<Node>>

执行查询并返回所有匹配的节点

pub fn find_first(&self) -> Option<Arc<Node>>

执行查询并返回第一个匹配的节点

pub fn count(&self) -> usize

执行查询并返回匹配的节点数量

pub fn parallel_find_all(&self) -> Vec<Arc<Node>>

并行执行查询并返回所有匹配的节点

pub fn parallel_find_first(&self) -> Option<Arc<Node>>

并行执行查询并返回第一个匹配的节点

pub fn parallel_count(&self) -> usize

并行执行查询并返回匹配的节点数量