oxirs 0.2.4

Command-line interface for OxiRS - import, export, migration, and benchmarking tools
Documentation 
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//! Temporary stub implementations until oxirs_core is available

use std::path::Path;

/// Placeholder Store type
pub struct Store;

impl Store {
    pub fn open(_path: &Path) -> Result<Self, Box<dyn std::error::Error>> {
        Ok(Store)
    }

    pub fn create(_path: &Path) -> Result<Self, Box<dyn std::error::Error>> {
        Ok(Store)
    }

    pub fn close(self) -> Result<(), Box<dyn std::error::Error>> {
        Ok(())
    }

    pub fn query(&self, _query: &str) -> Result<OxirsQueryResults, Box<dyn std::error::Error>> {
        Ok(OxirsQueryResults::new())
    }

    pub fn update(&self, _update: &str) -> Result<(), Box<dyn std::error::Error>> {
        Ok(())
    }

    pub fn insert(&mut self, _data: Vec<Statement>) -> Result<(), Box<dyn std::error::Error>> {
        Ok(())
    }
}

/// Placeholder query results
pub struct OxirsQueryResults {
    pub bindings: Vec<Binding>,
    pub variables: Vec<String>,
}

impl Default for OxirsQueryResults {
    fn default() -> Self {
        Self::new()
    }
}

impl OxirsQueryResults {
    pub fn new() -> Self {
        Self {
            bindings: vec![],
            variables: vec![],
        }
    }
}

pub struct Binding {
    pub values: Vec<Option<String>>,
}

pub struct Statement;

/// Placeholder for RDF operations
pub mod rdf {
    pub fn parse_file(
        _path: &super::Path,
        _format: &str,
    ) -> Result<Vec<super::Statement>, Box<dyn std::error::Error>> {
        Ok(vec![])
    }

    pub struct Statement;
}

/// Placeholder for SPARQL operations  
pub mod sparql {
    use super::Store;

    pub fn execute_query(
        _store: &Store,
        _query: &str,
    ) -> Result<QueryResults, Box<dyn std::error::Error>> {
        Ok(QueryResults::new())
    }

    pub fn execute_update(_store: &Store, _update: &str) -> Result<(), Box<dyn std::error::Error>> {
        Ok(())
    }

    pub struct QueryResults {
        pub bindings: Vec<Binding>,
    }

    impl Default for QueryResults {
        fn default() -> Self {
            Self::new()
        }
    }

    impl QueryResults {
        pub fn new() -> Self {
            Self { bindings: vec![] }
        }
    }

    pub struct Binding;
}