Struct WorkflowGraph 

pub struct WorkflowGraph {
    pub id: String,
    pub name: String,
    pub description: String,
    /* private fields */
}

工作流图

Fields

id: String

图 ID

name: String

图名称

description: String

图描述

Implementations

impl WorkflowGraph

pub fn new(id: &str, name: &str) -> WorkflowGraph

pub fn with_description(self, desc: &str) -> WorkflowGraph

pub fn add_node(&mut self, node: WorkflowNode) -> &mut WorkflowGraph

添加节点

pub fn add_edge(&mut self, edge: EdgeConfig) -> &mut WorkflowGraph

添加边

pub fn connect(&mut self, from: &str, to: &str) -> &mut WorkflowGraph

添加普通边

pub fn connect_conditional( &mut self, from: &str, to: &str, condition: &str, ) -> &mut WorkflowGraph

添加条件边

pub fn get_node(&self, node_id: &str) -> Option<&WorkflowNode>

获取节点

pub fn get_node_mut(&mut self, node_id: &str) -> Option<&mut WorkflowNode>

获取可变节点

pub fn node_ids(&self) -> Vec<&str>

获取所有节点 ID

pub fn node_count(&self) -> usize

获取节点数量

pub fn edge_count(&self) -> usize

获取边数量

pub fn start_node(&self) -> Option<&str>

获取开始节点

pub fn end_nodes(&self) -> &[String]

获取结束节点列表

pub fn get_outgoing_edges(&self, node_id: &str) -> &[EdgeConfig]

获取节点的出边

pub fn get_incoming_edges(&self, node_id: &str) -> &[EdgeConfig]

获取节点的入边

pub fn get_successors(&self, node_id: &str) -> Vec<&str>

获取节点的后继节点

pub fn get_predecessors(&self, node_id: &str) -> Vec<&str>

获取节点的前驱节点

pub fn get_next_node( &self, node_id: &str, condition: Option<&str>, ) -> Option<&str>

获取满足条件的下一个节点

pub fn get_error_handler(&self, node_id: &str) -> Option<&str>

获取错误处理节点

pub fn topological_sort(&self) -> Result<Vec<String>, String>

拓扑排序

pub fn has_cycle(&self) -> bool

检测环

pub fn get_parallel_groups(&self) -> Vec<Vec<String>>

获取可以并行执行的节点组

pub fn validate(&self) -> Result<(), Vec<String>>

验证图的完整性

pub fn find_all_paths(&self, from: &str, to: &str) -> Vec<Vec<String>>

获取从源到目标的所有路径

pub fn to_dot(&self) -> String

导出为 DOT 格式（用于可视化）