objectify-led.1.6.source-code.README.txt Maven / Gradle / Ivy

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objectify-led is a small Java library for binding object or class properties at runtime using annotations, reducing boilerplate code. Values can be taken from the System, from properties files, any arbitrary source in fact, and automatically set on properties.

The newest version!

** objectify-led 1.0 **

objectify-led is a small Java library for loading system and arbitrary values into objects at runtime.

Instead of having chunks of code such as

-----
public class Foo
{
    private static String BLAH = "default-value";

    private String myString;

    private int myInt = -1;

    public static void main(String[] args)
    {
        if (System.getProperty("blah.value) != null)
        {
            BLAH = System.getProperty("blah.value");
        }

        Foo foo = new Foo();
        if (System.getProperty("mystring.value) != null)
        {
            foo.myString = System.getProperty("mystring.value");
        }
        if (System.getProperty("myint.value) != null)
        {
            try
            {
                 String intValue = System.getProperty("myint.value");
                 foo.myInt = Integer.parseInt(intValue;
            }
            catch (NumberFormatException e)
            {
                ...
            }
        }
    }

    ...
}
-----

you can instead use objectify-led to bind the properties for you :

-----
public class Foo
{
    @Property("blah.value");
    private static String BLAH = "default-value";

    @Property("mystring.value");
    private String myString;

    @Property("myint.value");
    private int myInt = -1;

    public static void main(String[] args)
    {
        Foo foo = new Foo();
        new PropertySetter().process(foo);
    }

    ...
}
-----

Properties are obtained from the System, from any Properties objects you have provided, or
from any arbitrary source if you implement your own property context;

Objects are created from the property value using a pluggable factory, so it's possible
to have any type of object created based on the target field type.  By default, Strings and
all primitives/wrappers are supported.


Where can I get it?
-------------------

The latest version of objectify-led can be found at

    http://www.objectify.be


Requirements
------------

objectify-led uses log4j, which you will need to supply yourself.  Log4j can be downloaded from
http://logging.apache.org/log4j

Further questions
-----------------

You can contact the author at http://www.objectify.be or at [email protected]
if you have further questions or suggestions.