pub struct TransactionError { /* fields omitted */ }
Result of unsuccessful transaction execution encompassing both service and framework-wide error
handling.
This error indicates whether a panic or a user error has occurred.
- Content of the
description
field is excluded from the hash calculation (see StorageValue
implementation for the details).
TransactionErrorType::Panic
is set by the framework if panic is raised during transaction
execution.
TransactionError
implements Display
which can be used for obtaining a simple error
description.
The example below creates a schema; retrieves the table
with transaction results from this schema; using a hash takes the result
of a certain transaction and returns a message that depends on whether the
transaction is successful or not.
use exonum::blockchain::Schema;
let schema = Schema::new(&snapshot);
if let Some(result) = schema.transaction_results().get(&transaction_hash) {
match result {
Ok(()) => println!("Successful transaction execution"),
Err(transaction_error) => {
println!("Transaction error: {}", transaction_error);
}
}
}
Returns an error type of this TransactionError
instance. This can be
either a panic or a user-defined error code.
Returns an optional error description.
This method returns an ordering between self
and other
values if one exists. Read more
This method tests less than (for self
and other
) and is used by the <
operator. Read more
This method tests less than or equal to (for self
and other
) and is used by the <=
operator. Read more
This method tests greater than (for self
and other
) and is used by the >
operator. Read more
This method tests greater than or equal to (for self
and other
) and is used by the >=
operator. Read more
This method tests for self
and other
values to be equal, and is used by ==
. Read more
This method tests for !=
.
Performs copy-assignment from source
. Read more
This method returns an Ordering
between self
and other
. Read more
fn max(self, other: Self) -> Self | 1.21.0 [src] |
Compares and returns the maximum of two values. Read more
fn min(self, other: Self) -> Self | 1.21.0 [src] |
Compares and returns the minimum of two values. Read more
Formats the value using the given formatter. Read more
Formats the value using the given formatter. Read more
Creates owned data from borrowed data, usually by cloning. Read more
🔬 This is a nightly-only experimental API. (toowned_clone_into
)
recently added
Uses borrowed data to replace owned data, usually by cloning. Read more
Converts the given value to a String
. Read more
🔬 This is a nightly-only experimental API. (try_from
)
The type returned in the event of a conversion error.
🔬 This is a nightly-only experimental API. (try_from
)
Immutably borrows from an owned value. Read more
Mutably borrows from an owned value. Read more
🔬 This is a nightly-only experimental API. (try_from
)
The type returned in the event of a conversion error.
🔬 This is a nightly-only experimental API. (try_from
)
🔬 This is a nightly-only experimental API. (get_type_id
)
this method will likely be replaced by an associated static
Compare self to key
and return true
if they are equal.