OperationException class abstract final Exceptions

Thrown when the database reports an error while executing an operation.

An operation could fail for a number of reasons, such as:

• Type cast error in the database (e.g. CAST('NaN' AS INT)),
• General runtime error in the SQL evaluation (e.g. division by zero),
• Constraint violation (e.g. UNIQUE constraint violation),
• Deadlock, timeout in the database, etc.

An OperationException means that the database failed to execute the SQL query/command it was given. If this happens inside a transaction it's best to let it propagate up to Database.transact, such that the transaction is rolled back, this will in turn cause Database.transact to throw a TransactionAbortedException.

Inheritance

• Object
• DatabaseException
• OperationException

Implementers

• ConstraintViolationException
• DivisionByZeroException
• TypeCastException
• UnspecifiedOperationException

Properties

hashCode → int

The hash code for this object.

no setter, inherited

runtimeType → Type

A representation of the runtime type of the object.

no setter, inherited

Methods

noSuchMethod(Invocation invocation) → dynamic

Invoked when a nonexistent method or property is accessed.

inherited

toString() → String

A string representation of this object.

inherited

Operators

operator ==(Object other) → bool

The equality operator.

inherited