Struct rgraph::GraphSolver

pub struct GraphSolver<'a, 'b> { /* fields omitted */ }

The graph solver is a transient object which can execute the tasks described in a graph. It is designed to be generated and dropped on every execution.

Methods

impl<'a, 'b> GraphSolver<'a, 'b>

pub fn new(
    graph: &'a Graph,
    last_cache: &'b mut ValuesCache
) -> GraphSolver<'a, 'b>

creates a solver for graph 'graph', using cache from a previous solve. the cache may be empty.

pub fn get_binding(&self, name: &str) -> Result<&String, SolverError>

pub fn execute(&mut self, name: &str) -> Result<SolverStatus, SolverError>

Executes a task by name, all tasks needed to provide Assets are transitively executed

pub fn execute_terminals(&mut self) -> Result<SolverStatus, SolverError>

pub fn input_is_new<T>(&self, new_value: &T, name: &String) -> bool where
    T: Clone + Comparable + 'static, 

Check if the input is still valid. This function is used to compute if the input of a task has changed over iterations. if all inputs are cached and equal to current values, and a cached output is available. The output will be considered valid and the computation skipped

pub fn input_is_new_str<T>(&self, new_value: &T, name: &str) -> bool where
    T: Clone + Comparable + 'static, 

Check if the input is still valid. This function is used to compute if the input of a task has changed over iterations. if all inputs are cached and equal to current values, and a cached output is available. The output will be considered valid and the computation skipped

pub fn use_old_ouput<T: AsRef<str>>(&mut self, ouputs: &[T]) -> bool

function to decide whenever the set of values is still valid or the producing node of any of the values needs to be executed

pub fn get_values(&self) -> &ValuesCache

Trait Implementations

impl<'a, 'b> Cache for GraphSolver<'a, 'b>

fn get_value<T>(&self, name: &str) -> Result<T, SolverError> where
    T: Clone + 'static, 

Retrieves a value from the solver. It is required to know the name and type of the asset. Cast error will return SolveError::AssetWrongType

fn save_value<T>(&mut self, name: &String, value: T) where
    T: Clone + 'static, 

Saves a value to be available during execution. This routine can be used to feed initial values for Assets. i.e. unbond assets Assets not generated by any Task.

fn save_value_str<T>(&mut self, name: &str, value: T) where
    T: Clone + 'static, 

Saves a value to be available during execution. This routine can be used to feed initial values for Assets. i.e. unbond assets Assets not generated by any Task.

impl<'a, 'b> Drop for GraphSolver<'a, 'b>

fn drop(&mut self)

Executes the destructor for this type.