Struct WhatIf 

pub struct WhatIf {
    pub lost: Vec<EdgeAt>,
    pub gained: Vec<EdgeAt>,
}

The derived edges a hypothetical property change would retract and derive.

Returned by GraphDb::what_if_set_prop. Both lists are sorted by (edge_type, src_key, dst_key) and every entry is rule-derived.

Fields

lost: Vec<EdgeAt>

Derived edges that exist now and would be retracted.

gained: Vec<EdgeAt>

Derived edges that do not exist now and would be derived.

Trait Implementations

impl Clone for WhatIf

fn clone(&self) -> WhatIf

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for WhatIf

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Eq for WhatIf

impl PartialEq for WhatIf

fn eq(&self, other: &WhatIf) -> bool

Equality operator ==.

fn ne(&self, other: &Rhs) -> bool

Inequality operator !=.

impl Serialize for WhatIf

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl StructuralPartialEq for WhatIf