changelog.txt

人力资源管理系统 系统把几乎所有与人力资源相关的数据统一管理

* support for Dialect-specific SQL functions in HQL select clause (David Channon)
* added Session.clear()

Changes in version 2.0.2 (2.8.2003)
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* subqueries may now use HAVING and GROUP BY clauses
* fixed a bug with setMaxResults(), setFirstResult() in HSQL (introduced in 2.0.1)
* fixed a bug in Set.removeAll()
* fixed a bug in SchemaUpdate (Mathias Bogaert)
* added weak typing functionality to ScrollableResults
* fixed a bug with "calendar" versioning in IBM JDK1.3.1 (workaround for JDK bug)
* fixed a bug in mapping DTD that caused a problem for hbm2java (Max Andersen)
* fixed a bug querying nested components
* SQL generation now prefers ANSI-style inner joins to theta inner joins
* fixed a bug caching collection references loaded using FETCH
* fixed a bug with composite foreign keys in normalized table mappings (Tom Sedge)
* limit support for Interbase (Ludovic Orban)
* added where attribute to <class> mappings
* added cascade="all-delete-orphan" for collection mappings
* fixed a bug binding named parameters with setMaxResults()/setFirstResults()
* fixed some minor bugs in HQL translator
* fixed a long-standing bug where a <key-many-to-one> could not be dereferenced in HQL
* SQL UPDATEs now occur in a predictable order (same order as objects were loaded)
* support for SELECT ... FOR UPDATE in SAPDB
* fixed bug where Criteria queries against a subclass also returned superclass instances
* fixed a very rare bug where an update could get lost with normalized mappings
* fixed a problem with proxied class heirarchies rooted at an interface or abstract class
* where and order-by attributes now allow SQL function calls and subselects
* added formula attribute to <property> tag, to allow "computed" properties
* fixed a bug where PreparedStatements were sometimes not closed when an exception occured
* workaround for a problem with <joined-subclass> and Interceptor.onFlushDirty()

Changes in version 2.0.1 (17.6.2003)
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* fixed some problems with new dialect-specific LIMIT clauses
* improved parsing of collection where attribute
* made one-to-many bags more efficient (they are really sets!)
* allowed type="calendar" for <version> properties
* fixed a bug with locking a versioned composite-id class
* refresh() may now take a transient instance
* added ProxoolConnectionProvider (Martin Crawford)
* fixed some minor JCA issues (Mike Mosiewicz)
* fixed a bug with FETCH and sorted associations
* improved performance of SchemaUpdate tool (Teodor Danciu)
* fixed a bug in Configuration.addFile(String) (Ken Geis)
* tidied up and documented hbm2ddl package (esp. Ant tasks)
* deprecated CounterGenerator in favor of IncrementGenerator
* improved logging during initialization
* deprecated "vm" in favor of "increment" id generator

Changes in version 2.0 final (8.6.2003)
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* added "fetch" keyword to HQL
* added evict() methods to SessionFactory for JVM-level cache
* destroy caches from SessionFactory.close()
* fixed an NPE in Session.evict() (Simon Spero)
* added Query.setLockMode()
* tidied up implementation of Loader
* release ResultSets more aggressively
* miscellaneous improvements to some Dialects
* hbm2java now honors the sort attribute (Max Andersen)
* added exceptions to Interceptor interface
* fixed problem with setMaxResults(), setFirstResult() in Oracle (introduced in beta 6)
* fixed some SQL generation that was a problem for Sybase (Dietmar Posselt)
* fixed some problems with ODMG API (Oliver Gries)
* added JOTMTransactionManagerLookup (Low Heng Sin)
* added JOnASTransactionManagerLookup (?)
* fixed a bug in WeblogicTransactionManagerLookup (Mathias Bogaert)
* added Criteria.setFetchMode()
* added new Expressions
* much more elegant/robust handling of quoted identifiers
* renamed Hibernate.association() to Hibernate.entity()
* added dynamic-update and dynamic-insert mapping attributes
* fixed a bug with refresh() of objects with collections
* HQL aliases now optional - "from Cat" now legal
* platform-independant quoting of identifiers using backticks

Changes in version 2.0 beta 6 (10.5.2003)
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* fixed a bug querying one-to-many associations to a <joined-subclass>
* added support for dialect-specific LIMIT-style clauses (David White)
* added <idbag>
* fixed bug in hashCode() of persistent collections
* <joined-subclass> now supported in HSQL (Wolfgang Jung)
* fixed problem for XML parsers which ignore default values declared in DTD
* <meta> tags can now be set to not be inheritable
* fixed bug in Expression.in()
* fixed an NPE that could occur from update() in very strange cases (Chris Nockleberg)
* disabled outer-join back to owner when initializing one-to-many (performance improvement)
* fixed a bug in Query.setParameterList() (Nick Heudecker)
* improved JCA support (Igor Fedorenko)

Changes in version 2.0 beta 5 (21.4.2003)
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* Informix support (Steve Molitor)
* fixed a bug parsing "select new ... " queries
* deprecated "object" type in favor of <any> mappings
* added Session.contains()
* added extra DBCP config options (Alex Burgel)
* SessionFactory.close() now unbinds from JNDI
* added Session.evict()
* got rid of an unnecessary SQL DELETE issued when an empty collection was dereferenced
* where attribute of collection mappings no longer ignored for deletion
* improved logging
* support polymorphic associations to "embedded" composite id classes
* various bugfixes to collection filter parameter binding
* fixed some problems with proxies introduced in earlier beta versions
* fixed bug with self-reference in the case of identity column id generation
* added hibernate.cglib.use_reflection_optimizer property
* added nonstrict-read-write cache
* fixed an SQL-generation bug in new Criteria API
* added CompositeUserType
* sequence and table id generators now aware of default-schema
* added update and insert attributes to <component> element
* fixed a bug with expressions like elements(foo.bar.baz) in where clause
* more efficient Set initialization (two-phase load)
* removed support for hibernate.query.imports and added <import> mapping element
* fixed problem in DBCP connection validation and added new config properties
* hbm2java can now generate finder methods for persistent objects (experimental) (Matt Hall)
* hbm2java small fixes/refactorings to support generating more than one file per persistent object (Max Andersen)

Changes in version 2.0 beta 4 (22.3.2003)
-----------------------------------------
* Major HQL improvements
- from "Foo as foo join foo.bars as bar" instead of "from foo in class Foo, bar in elements(foo.bars)"
- "select new Foo(bar.name, bar.amount) from ...."
- outer and full join support
* Query methods now return this, to allow chaining
* FrontBase support (Run Lussier)
* experimental JCA support (Daniel Bradby)
* hbm2java now can generate Beans style property events (Klaus Zimmermann)
* support SQL identifiers quoted with []
* fixed bug with PostgreSQL
* name attribute now optional in .cfg.xml
* support for postgres ilike operator (M Lang)
* squash warnings with GNU JAXP (Chris Nockleberg)
* fixed a bug in Query.setParameterList()
* Ingres support (Ian Booth)
* collections now detect changes not made via wrapper for newly saved objects
* new (experimental) Criteria + Expression APIs
* Query.setEntity(), etc, now aware of proxies (also improved hueristics for guessing Type)
* added Hibernate.isInitialized()
* detect changes made directly to newly-wrapped collection (ie. not via the wrapper)
* added Hibernate.refresh(Object, LockMode)
* update(), saveOrUpdate() no longer initialize a proxy
* fixed problems with Sybase
* added force attribute to <discriminator>
* improved handling of null discriminator-value
* support SQL-style '' escape for HQL strings

Changes in version 2.0 beta 3 (24.2.2003)
----------------------------------------
* collections now represent null elements as a missing row
* collections now deserialize correctly (fix for bug in beta 2)
* standardised on dom4j for XML parsing
* fixed bugs in collection caching (an exception occurred for some sorted collections and some kinds of maps)
* allowed null discriminators
* set autocommit to true in SchemaUpdate
* fixed a stack overflow that could occur in toString() of classes created with hbm2java (Max Andersen)
* fixed a bug where composite-element <parent> property was not being set after retrieval from cache
* added where attribute to collection mappings to allow filtering
* fixed a exception that occurred when wrapping collections with sort="MyComparator" (Jason Horne)
* objects with mutable="false" are now never updated
* fixed an exception that occurs with <key-many-to-one> association to a class with a composite id (Stefano Travelli)
* added SchemaExport Ant task (Rong C Ou)
* integrated latest CGLIB release (Juozas Baliuka)
- added support for new CGLIB reflection optimizer (Juozas Baliuka)
* improved query cache algorithm (Who?)
* fixed a bug in "object" type
* Lists and arrays now represent null elements as a missing row
* fixed a bug in Hibernate PreparedStatement cache where maxRows and fetchSize were not cleared before re-caching
* fixed a bug in HibernateService that caused a restart to fail
* added SybaseAnywhereDialect (?)
* added SessionFactory.close()

Changes in version 2.0 beta 2 (2.2.2003)
----------------------------------------
* property column names may now be of any length (Mark Woon)
* fixed problem where CodeGenerator created private get/set pairs (Max Andersen)
* fixed all silly bugs in Configuration.configure()
* efficient collection updates from Session.update()
* added <jcs-class-cache> and <jcs-collection-cache> elements to hibernate-configuration.dtd
* support for normalized mappings for databases with DECODE instead of CASE (Simon Harris)
* added Oracle9Dialect
* added JRun4TransactionManagerLookup (Joseph Bissen)
* fixed JDBCException to keep reference to underlying SQLException
* fixed a bug loading many-to-many associations with a repeated column name
* fixed a bug in ShortType
* added IngresDialect (Ian Booth)
* added --config option to SchemaExport

Changed in version 2.0 beta 1 (28.1.2003)
-----------------------------------------
* renamed packages to net.sf.hibernate.*
* all API methods now wrap SQLExceptions
* removed support for toplevel collections / subcollections
* created hibernate-mapping-2.0.dtd
- renamed 'readonly' attribute to 'inverse'
- renamed 'role' attribute to 'name'
- changed default value for 'unsaved-value' to "null"
- added mandatory 'name' attribute to <param>
- added <meta> tag
* created hibernate-configuration-2.0.dtd
* brand new Configuration API, including exposed mapping package
* completely reworked IdentifierGenerator framework
- built-in generators now auto-detect the type (so integer identity columns are supported, for example)
- parameters are now named
- built-in strategies are renamed
* expanded Interceptor interface
* removed exceptions that occur if an object is saved or deleted multiple times in a session
* added <parent> subelement to <composite-element> and <nested-composite-element>
* collections except for <bag>s now implement by-value equals() and hashCode()
* removed all deprecated methods
* added Session.refresh()
* added dynamic-update functionality
* added update and insert attributes to <property> and <many-to-one> mappings
* added elements(), indices(), size(), maxelement(), minelement(), maxindex(), minindex() collection functions to query language
* huge improvements to CodeGenerator (Max Andersen)
* enhanced outerjoin fetching support in queries
* experimental support for DynaBeans as components

Changes in version 1.2.3 (28.1.2003)
------------------------------------
* fixed a recently-introduced problem with Timestamp dirty checking
* added createClob(), createBlob() for streams (Benoit Menendez)