org.springframework.data.cassandra.core.cql

Interface CqlExceptionTranslator

All Superinterfaces:

org.springframework.dao.support.PersistenceExceptionTranslator

All Known Implementing Classes:

CassandraExceptionTranslator

Functional Interface:

This is a functional interface and can therefore be used as the assignment target for a lambda expression or method reference.

@FunctionalInterface
public interface CqlExceptionTranslator
extends org.springframework.dao.support.PersistenceExceptionTranslator

Strategy interface for translating between DriverExceptios and Spring's data access strategy-agnostic DataAccessException hierarchy.

Author:

Mark Paluch

See Also:

DataAccessException, 2.0

Method Summary

Modifier and Type	Method and Description
default org.springframework.dao.DataAccessException	translate(String task, String cql, com.datastax.driver.core.exceptions.DriverException ex) Translate the given DriverException into a generic DataAccessException.

Methods inherited from interface org.springframework.dao.support.PersistenceExceptionTranslator

translateExceptionIfPossible

Method Detail

translate

default org.springframework.dao.DataAccessException translate(@Nullable
                                                              String task,
                                                              @Nullable
                                                              String cql,
                                                              com.datastax.driver.core.exceptions.DriverException ex)

Translate the given DriverException into a generic DataAccessException.

The returned DataAccessException is supposed to contain the original DriverException as root cause. However, client code may not generally rely on this due to DataAccessExceptions possibly being caused by other resource APIs as well. That said, a getRootCause() instanceof DataAccessException check (and subsequent cast) is considered reliable when expecting Cassandra-based access to have happened.

Parameters:

task - readable text describing the task being attempted.

cql - CQL query or update that caused the problem (may be null).

ex - the offending DriverException.

Returns:

the DataAccessException, wrapping the DriverException.

See Also:

NestedRuntimeException.getRootCause()