[−][src]Trait transact::handler::TransactionHandler

pub trait TransactionHandler: Send {
    fn family_name(&self) -> &str;
    fn family_versions(&self) -> &[String];
    fn apply(
        &self, 
        transaction: &TransactionPair, 
        context: &mut dyn TransactionContext
    ) -> Result<(), ApplyError>;
}

Required methods

`fn family_name(&self) -> &str`

TransactionHandler that defines the business logic for a new transaction family. The family_name, family_versions, and namespaces functions are used by the processor to route processing requests to the handler. family_name should return the name of the transaction family that this handler can process, e.g. "intkey"

`fn family_versions(&self) -> &[String]`

family_versions should return a list of versions this transaction family handler can process, e.g. ["1.0"]

`fn apply( &self, transaction: &TransactionPair, context: &mut dyn TransactionContext ) -> Result<(), ApplyError>`

Apply is the single method where all the business logic for a transaction family is defined. The method will be called by the transaction processor upon receiving a TpProcessRequest that the handler understands and will pass in the TpProcessRequest and an initialized instance of the Context type.

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Implementors