私は次の解決策を考え出しました:
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既存のHibernateMySQL5Dialectを拡張します:
public class MySQL5Dialect extends org.hibernate.dialect.MySQL5Dialect { /** * Pattern to extract violated constraint name from {@link SQLException}. */ private static final Pattern PATTERN = Pattern.compile(".*constraint\\W+(\\w+).*", Pattern.CASE_INSENSITIVE); private ViolatedConstraintNameExtracter constraintNameExtracter; public MySQL5Dialect() { constraintNameExtracter = new ConstraintNameExtractor(); } @Override public ViolatedConstraintNameExtracter getViolatedConstraintNameExtracter() { return constraintNameExtracter; } private class ConstraintNameExtractor implements ViolatedConstraintNameExtracter { @Override public String extractConstraintName(SQLException sqle) { final String msg = sqle.getMessage(); final Matcher matcher = PATTERN.matcher(msg); String constraintName = null; if (matcher.matches()) { constraintName = matcher.group(1); } return constraintName; } } }
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Hibernate構成ファイル(hibernate.cfg.xml)で新しく作成された方言を指定します:
<property name="dialect">your.package.MySQL5Dialect</property>
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getConstraintName()は、実際に違反した制約名を返します:
try { ... } catch (ConstraintViolationException e) { LOG.error(String.format("Constraint=%s, code=%d", e.getConstraintName(), e.getErrorCode())); }