mybatis-3.5.7

Bug fixes:

• Improved performance under JDK 8. #2223

There is no known backward incompatible change since 3.5.6.

Please see the 3.5.7 milestone page for the complete list of changes.

mybatis-3.5.6

Enhancements:

• A new configuration option defaultSqlProviderType is added. The specified class will be used as the SQL provider when the value() or type() is not specified in @SelectProvider, @UpdateProvider, @InsertProvider and @DeleteProvider. #1951
• A new transaction isolation level SQL_SERVER_SNAPSHOT is added to TransactionIsolationLevel enum to support the MS SQL Server specific isolation level SNAPSHOT. #1973
• When there is no JEP-290 serialization filter defined, a WARN level message is logged on deserializing object streams. #2079

Bug fixes:

• Possible NoSuchPropertyException under heavy load. #1648
• Possible InvalidPathException when registering type aliases by specifying package name. #1974
• Possible OutOfMemoryError when using BlockingCache. #2044

There is no known backward incompatible change since 3.5.5.

Please see the 3.5.6 milestone page for the complete list of changes.

mybatis-3.5.5

Enhancements:

• You can reference single List or Collection type parameter using its actual parameter name when useActualParamName is enabled. #1237
• You can specify resultMap in @One and @Many. #1771
• You can specify columnPrefix in @One and @Many. #1829
• A new option shrinkWhitespacesInSql to remove extra whitespaces in SQL. #1901

Bug fixes:

• Possible IllegalArgumentException when using @CacheNamespaceRef . #1719
• Mapper method invocation should be non-blocking (work around JDK-8161372). #1929

There is no known backward incompatible change since 3.5.4.

Please see the 3.5.5 milestone page for the complete list of changes.

mybatis-3.5.4

Enhancements:

• You can now omit unnecessary @Results and @ConstructorArgs annotation. #1698

Bug fixes:

• Avoid invoking hashCode() method when setting auto-generated keys. #1719
• Possible ResultMapException when using nested select. #1551
• Possible incorrect TypeVariable resolution in TypeParameterResolver. #1794
• Race condition in TypeHandlerRegistry. #1819

There is no known backward incompatible change since 3.5.３.

Please see the 3.5.4 milestone page for the complete list of changes.

mybatis-3.5.3

Enhancements:

• Support variable substitution in CDATA of included <sql />. #1615
• Support default method invocation on JDK 14+8 or later. #1626
• Avoid illegal reflective access warning when invoking default mapper method. #1636
• Ambiguous getter/setter now throws ReflectionException only when it is actually accessed. #1201

Bug fixes:

• Possible infinite loop when a SQL provider throws an exception. #1616
• Unable to iterate Cursor if the next element is null. #1653
• queryCursor() fails in streaming mode of MySQL Connector/J. #1654

There is no known backward incompatible change since 3.5.2.

Please see the 3.5.3 milestone page for the complete list of changes.

mybatis-3.5.2

Enhancements:

• SQL builder now supports LIMIT, OFFSET #1521 and FETCH FIRST #1582.
• SQL builder now supports multi-row insert syntax #1333.
• A new property defaultNetworkTimeout has been added to the built-in data sources i.e. PooledDataSource and UnpooledDataSource #1527.
• SQL provider annotations now takes value attribute which is an alias for type #1522.
• You can now pass Java array to ArrayTypeHandler#setNonNullParameter() #1548.
• You can reference single simple type unnamed parameter with any name in OGNL expressions #1487.
• A new configuration option defaultResultSetType is added #1056.

Bugs:

• SQL provider method with a primitive parameter causes BuilderException #1604.
• Fixes a possible NullPointerException #1590.

There is no known backward incompatible change since 3.5.1.

Please see the 3.5.2 milestone page for the complete list of changes.

mybatis-3.5.1

Bug fixes:

• keyProperty specified with parameter name could cause ExecutorException. #1485
• False positive error 'Ambiguous collection type ...' . #1472
• EnumTypeHandler is not used when the enum has methods. #1489
• Auto-mapping fails in a result map referenced from a constructor arg with columnPrefix. #1496
• Constructor auto-mapping could fail when columnPrefix is specified in the parent result map. #1495
• LocalTimeTypeHandler loses fractional seconds part. #1478
• LocalDateTypeHandler and LocalDateTimeTypeHandler could return unexpected value. #1478

Enhancements:

• You can now return 'script' from a SQL provider. The returned script is parsed using the language driver specified by @Lang. #1391
• You can now omit method attribute from SQL provider annotations when the provider method has the same name as the mapper method or its name is provideSql. #1279
• You can now get databaseId in SQL providers. #1503
• The default type handler for LONGVARCHAR is changed from ClobTypeHandler to StringTypeHandler. This improves compatibility with SAP ASE. #1484

There is a backward incompatible change.

• Because of the fix for #1478 , LocalDateTypeHandler, LocalTimeTypeHandler and LocalDateTimeTypeHandler now require a JDBC driver that supports JDBC 4.2 API.
  Also, these type handlers no longer work with Druid. See #1516

mybatis-3.5.0

MyBatis 3.5.0 requires Java 8 and later.

Enhancements:

• Avoid 'Illegal reflective access' warning on JDK 9+. #1156
• Added Automatic-Module-Name : org.mybatis #1199
• Support java.util.Optional as return type of mapper method. #799
• Avoid unnecessary wasNull() calls from the built-in type handlers. #1244
• It is now possible to specify columnPrefix in constructor arguments. #968
• Improved reliability when searching constructor for auto-mapping. #1277
• It is now possible to access private, package private and protected members in OGNL expressions. #1258
• Throw exception if the specified keyProperty is not found when assigning generated keys.  #1250
• Added a type handler for SQLXML data type. #1221
• Allow accessing private, package private and protected members in OGNL expression. #1258
• <set /> tag now trims the leading comma. #21
• Infer <case /> tag's resultType from the enclosing resultMap. #486
• Allow specifying columnPrefix in constructor mapping. #968
• Combination of @CacheNamespace and <cache-ref /> does not throw exception anymore. #1194
• Support Log4J 2.6+. #1210
• Slightly improved compatibility with drivers that only support JDBC 3 API. #1386
• Upgraded testing framework to JUnit 5. #1425

Bug fixes:

• OffsetDateTimeTypeHandler, OffsetTimeTypeHandler and ZonedDateTimeTypeHandler loses time zone information. #1081
• Avoid SQLException when using Cursor with Db2. #1345
• Avoid exception when using Cursor with ReuseExecutor. #1351
• RowBounds with out-of-range offset causes SQLException on DB2. #1355
• Specified logging implementation is not used in some classes. #1272
• Unable to resolve javaType for <association />. #1381
• Deeply nested (3+ levels) result map could cause IllegalArgumentException. #1176
• Generic type parameter is not correctly resolved when the class hierarchy is deeper than 3 levels. #1260

Please see the 3.5.0 milestone page for the complete list of changes.

Note that there are some backward incompatible changes since the last release 3.4.6.

• Specifying keyProperty is now mandatory when using useGeneratedKeys. If you relied on the implicit default value (="id"), generated keys will be silently ignored. #1198
• Using Cursor now requires a driver that supports JDBC 4.1 API. #1351
• If you extended org.apache.ibatis.type.BaseTypeHandler, you might need to add wasNull() check in your type handler. #1144
• The default resultSetType value has been changed from FORWARD_ONLY to UNSET. This is applied only to annotation based mappers (for XML based mappers, the default is/was UNSET). #1334
• If you extended org.apache.ibatis.transaction.jdbc.JdbcTransaction for some reason, the property autoCommmit has been renamed to autoCommit. #941

mybatis-3.4.6

Enhancements:

• Apply custom ResultHandler to CURSOR type OUT parameter. #493
• Substitute variables in attribute values of included SQL fragments. #1069
• BatchExecutor now closes each statement immediately after execution. #1110
• It is now possible to use a static method as SQL provider. #1131
• SQL provider method can now return CharSequence instead of String. #1134
• Add resource path to the exception message when parsing XML mapper failed. #1172

Bug fixes:

• Registering type handler against HashMap causes ClassCastException. #1089
• Unable to register TypeHandler once TypeHandlerRegistry.hasTypeHandler is called. #1177
• Serializing and deserializing cached objects causes NullPointerException. #1084
• Invalid error message 'Two methods with same method signature but not providing classes assignable?' in System.err. #929

There should be no backward incompatible change since 3.4.5.
Follow this link to see the full list of changes.

mybatis-3.4.5

Enhancements:

• Make default enum type handler customizable. #971
• Make mapper method and its interface type accessible to SqlProvider. #1055
• Allow using configuration properties in SqlProvider. #1061
• Merge type handlers for JSR-310 (Java Date and Time API) into the core. #974

Bug fixes:

• The type handler registered for a common interface of enums was not applied correctly. #976
• Lazy loading should not overwrite a property value set by user. #988
• Prevent foreach xml tag from polluting the global context. #966
• Some parameter names (e.g. 'size') can cause ClassCastException. #1031
• Not all result sets are processed when UPDATE or INSERT is performed in between. #1036
• With PostgreSQL, ExecutorException is thrown if useGeneratedKeys is enabled globally. #902

There should be no backward incompatible change since 3.4.4.
Follow this link to see the full list of changes.