Port to Java5
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Key: LUCENE-1257
URL: https://issues.apache.org/jira/browse/LUCENE-1257
Project: Lucene - Java
Issue Type: Improvement
Components: Analysis, Examples, Index, Other, Query/Scoring,
QueryParser, Search, Store, Term Vectors
Affects Versions: 2.3.1
Reporter: Cédric Champeau
Attachments: java5.patch
For my needs I've updated Lucene so that it uses Java 5 constructs. I know Java
5 migration had been planned for 2.1 someday in the past, but don't know when
it is planned now. This patch against the trunk includes :
- most obvious generics usage (there are tons of usages of sets, ... Those
which are commonly used have been generified)
- PriorityQueue generification
- replacement of indexed for loops with for each constructs
- removal of unnececessary unboxing
The code is to my opinion much more readable with those features (you actually
*know* what is stored in collections reading the code, without the need to
lookup for field definitions everytime) and it simplifies many algorithms.
Note that this patch also includes an interface for the Query class. This has
been done for my company's needs for building custom Query classes which add
some behaviour to the base Lucene queries. It prevents multiple unnnecessary
casts. I know this introduction is not wanted by the team, but it really makes
our developments easier to maintain. If you don't want to use this, replace all
/Queriable/ calls with standard /Query/.
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