116 lines
6.5 KiB
HTML
116 lines
6.5 KiB
HTML
<!--
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Copyright 2003-2005 The Apache Software Foundation
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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-->
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<html>
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<head>
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<title>RELEASE NOTES: COLLECTIONS 3.2</title>
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</head>
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<body>
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<center><h2>RELEASE NOTES: COLLECTIONS 3.2</h2></center>
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<p>
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Commons collections is a project to develop and maintain collection classes
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based on and inspired by the JDK collection framework.
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This project is JDK1.2 compatible, and does not use JDK1.5 generics.
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</p>
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<p>
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This release adds various new classes and fixes a number of bugs.
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All feedback should be directed to commons-user at jakarta.apache.org.
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</p>
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<hr />
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<center><h3>COMPATABILITY</h3></center>
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<p>
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This release is fully source and binary compatible with v3.1.
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(Checks performed using JDiff and Clirr, thanks).
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Please check the bug fixes to ensure you weren't relying on the behaviour of a bug.
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</p>
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<p>
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There are two new <i>deprecations</i>:<br />
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BeanMap is now deprecated and will be removed in v4.0.
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The class is now available in commons-beanutils (full jar version).
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This change was made to ensure that all bean related collections were in one place (ie. beanutils).
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If this causes major headaches to anyone please contact commons-dev at jakarta.apache.org.
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</p>
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<p>
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MultiHashMap is now deprecated and will be removed in v4.0.
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The class is now available as MultiValueMap in the map subpackage.
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This new version of the class is a decorator and can wrap maps other than HashMap
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making it much more flexible.
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If this causes major headaches to anyone please contact commons-dev at jakarta.apache.org.
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</p>
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<center><h3>NEW CLASSES</h3></center>
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<ul>
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<li>MultiValueMap - Decorator implementation of MultiMap providing control over the map and collection implementations [29440]</li>
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<li>DefaultedMap - Returns a default value when the key is not found, without adding the default value to the map itself [30911]</li>
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<li>GrowthList - Decorator that causes set and indexed add to expand the list rather than throw IndexOutOfBoundsException [34171]</li>
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<li>LoopingListIterator - When the end of the list is reached the iteration continues from the start [30166]</li>
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</ul>
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<center><h3>ENHANCEMENTS</h3></center>
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<ul>
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<li>CollectionUtils.addIgnoreNull - Adds to the collection if the value being added is not null [30020]</li>
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<li>MapUtils.putAll - Puts an array of key/value pairs into a map [30882]</li>
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<li>CollectionUtils/MapUtils.isEmpty/isNotEmpty - Null-safe checks of collection emptyness [35890]</li>
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<li>CollectionUtils.sizeIsEmpty - Checks if a collection, array, map, iterator or enumeration is empty</li>
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<li>CollectionUtils/ListUtils - retainAll/removeAll that don't change original colllection</li>
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<li>ExtendedProperties - Accepts List elements (does not enforce Vector) as values [36812]</li>
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<li>ExtendedProperties - new Methods getList(String key) and getList(String key, List defaults) [36812]</li>
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<li>ExtendedProperties - No longer uses an exception in normal processing [30497]</li>
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<li>BlockingBuffer - now includes stack trace if InterupttedException occurs [33700]</li>
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<li>BlockingBuffer - new methods that allow get and remove with a timeout [27691]</li>
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<li>Transformed*Map - new factory decorateTransform() that transforms any existing entries in the map [30959]</li>
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<li>ListOrderedMap - values can now be accessed as a List using valueList() [37015]</li>
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<li>ListOrderedMap - additional list-like method, setValue(int,Object)</li>
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<li>PriorityBuffer - now Serializable [36163]</li>
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</ul>
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<center><h3>BUG FIXES</h3></center>
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<ul>
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<li>FastArrayList - Fix iterators and views to work better in multithreaded environments</li>
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<li>FastArrayList - Fix iterator remove where ConcurrentModificationException not as expected [34690]</li>
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<li>CursorableLinkedList (list subpackage) - Fix iterator remove/set not throwing IllegalStateException after next-previous-removeByIndex [35766]</li>
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<li>TreeList/CursorableLinkedList/NodeCachingLinkedList/AbstractLinkedList - Fix iterator remove not working properly when called after previous [35258]</li>
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<li>SetUniqueList.set(int,Object) - Destroyed set status in certain circumstances [33294]</li>
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<li>AbstractLinkedMap.init() - Now calls createEntry() to create the map entry object [33706]</li>
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<li>AbstractHashedMap deserialization - Fix to prevent doubling of internal data array [34265]</li>
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<li>AbstractHashedMap initialization - Fix to setup threshold correctly, improving performance [35012]</li>
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<li>BeanMap.initialize() - Internal variable now correctly initialised with only write methods that actually exist [15895]</li>
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<li>MultiHashMap.remove(key, item) - Was returning the item even when nothing was removed [32366]</li>
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<li>MultiHashMap.putAll(multimap) - Was adding the collection as a single item rather than individually [35631]</li>
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<li>Flat3Map.equals() - Fix to make flat mode comparison actually work [34917]</li>
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<li>TransformedMap.putAll - Now allows putAll of an empty map [34686]</li>
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<li>AbstractMapBag.BagIterator.remove - Removing the last entry used to break the class invariants [35747]</li>
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<li>BoundedFifoBuffer/CircularFifoBuffer - Fix serialization to work in case where buffer serialized when full [31433]</li>
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<li>BoundedFifoBuffer - Fix iterator remove bug causing ArrayIndexOutOfBounds error [33071]</li>
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<li>UnboundedFifoBuffer - Fix iterator remove bug causing ArrayIndexOutOfBounds error [35733]</li>
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<li>UnboundedFifoBuffer - Fix deserialization to work with subsequant object manipulation [35763]</li>
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<li>BlockingBuffer - Fix internal locking code (internal fix, no effect on users of BlockingBuffer) [37028]</li>
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<li>IteratorChain.remove() - Fix to avoid IllegalStateException when one of the underlying iterators is a FilterIterator [34267]</li>
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<li>ExtendedProperties.convertProperties() - Fix to handle default properties maps correctly [32204]</li>
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<li>Add casts to avoid some JDK1.5 compilation warnings [35474]</li>
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</ul>
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<center><h3>JAVADOC</h3></center>
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<ul>
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<li>MapUtils.safeAddToMap - Better comment</li>
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<li>MapUtils.transformed*Map - Better comment</li>
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<li>ListOrderedSet.decorate(List) - Better comment [32073]</li>
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<li>BlockingBuffer - Add comments</li>
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</ul>
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</body>
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</html>
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