See home page, Installation section, to add maven repositories.
Add in your pom.xml
the dependency artifacts.
<dependency> <groupId>net.sf.gee</groupId> <artifactId>g-common</artifactId> <version>${g-common.version}</version> </dependency>
FInd the site generation of Maven with all informations about project and code, including Javadocs. Please see the Files section and choose your version and download site archive.
Site archive file has name as <libraryname>-<library_version>-SITE.tar.bz2
It is a good practive spend more times about error handling with Exception classes inside g-common.
GBaseException, is an abstrac class that extends java.lang.Exception
that use a similar structure of UNIX int code of process return. Indeed the enum ExceptionSignal
has the list of common errors and associate them an integer number. So this class can manage the error handling using:
integer number,
ExceptionSignal, is an Enumeration
that contains the following errors with associated error code:
CONNECTION_ERROR(1), CONNECTION_TIMEOUT_ERROR(2), CONNECTION_TRASMISSION_ERROR(3), DATABASE_ERROR(4), PERSISTENCE_ERROR(5), SERVICE_ERROR(6), BUSINESS_SERVICE_ERROR(7), XML_GENERIC_ERROR(8), XML_PARSE_ERROR(9), XML_RENDER_ERROR(10), INPUT_DATA_GENERIC_ERROR(11), INPUT_DATA_SYNTAX_ERROR(12), INPUT_DATA_SEMANTIC_ERROR(13)
Please check the javadocs inside site archive. Below there are only some examples to show the usage of this library.
Wihtout StringUtil
if(someString != null && !"".equals(someString)) { // do something }
With StringUtil
if(!StringUtil.isEmpty(someString)) { // do something }
Without NumericUtil
SecureRandom sr = new SecureRandom(); int range = end - start + 1; int randomIntWithRange = (sr.nextInt(range) + start);
With NumericUtil
int randomIntWithRange = NumericUtil.generateRandom(min, max);