High level search with PHP and Apache Solr
When data sets get large and MySQL database querying to search become too load heavy and slow, full indexing is required. Several solutions are available but in this article I will be demonstrating the Apache foundations Solr Java Lucene implementation. For this a Java build will be required. Linux or Mac is less of a problem but for windows I use the Apache Tomcat server.
New language features in Java 7
I’m just back from the Devoxx conference in Antwerp. An update was given on the new language changes that will be in Java 7. The JDK currently has a release date of September 2010.
Here are 7 of the new features that have been completed:
* Language support for collections
* Automatic Resource Management
* Improved Type Inference for Generic Instance Creation (diamond)
* Underscores in numeric literals
* Strings in switch
* Binary literals
* Simplified Varargs Method Invocation
很多特性都非常有意思，比如：
List<String> list = new ArrayList<String>();
list.add("item");
String item = list.get(0);
Set<String> set = new HashSet<String>();
set.add("item");
Map<String, Integer> map = new HashMap<String, Integer>();
map.put("key", 1);
int value = map.get("key");
可以变为：
List<String> list = ["item"];
String item = list[0];
Set<String> set = {"item"};
Map<String, Integer> map = {"key" : 1};
int value = map["key"];
最有意思的是数字：
int one_million = 1_000_000;
