ru.sstu.properties.core
Class PropertyHelper

java.lang.Object
  ru.sstu.properties.core.PropertyHelper

public class PropertyHelper
extends Object

PropertyManager class provides mechanisms for properties loading into settings objects and vice versa. The subclass of AbstractSettings should contain fields marked with Property annotation.

Since:

Properties 1.0

Author:

Denis_Murashev

Nested Class Summary

static interface

PropertyHelper.Converter<T> Converter interface represents converter from String to given type T.

Constructor Summary

PropertyHelper()

Method Summary

static <T> T	load(T object, InputStream input) Loads given properties into settings object.
static <T> T	load(T object, Map<Object,Object> properties) Loads given properties into settings object.
protected void	setConverter(Class<?> type, PropertyHelper.Converter<?> converter) Adds converter for given class.
static Map<Object,Object>	toProperties(Object object) Provides properties as Map object for given settings object.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

PropertyHelper

public PropertyHelper()

Method Detail

load

public static <T> T load(T object,
                         InputStream input)
              throws PropertyException

Loads given properties into settings object.

Type Parameters:

T - type of settings holder

Parameters:

object - settings holder

input - input stream

Returns:

settings holder with updated values

Throws:

PropertyException - if properties cannot be loaded

load

public static <T> T load(T object,
                         Map<Object,Object> properties)
              throws PropertyException

Loads given properties into settings object.

Type Parameters:

T - type of settings holder

Parameters:

object - settings holder

properties - properties

Returns:

settings holder with updated values

Throws:

PropertyException - if properties cannot be loaded

toProperties

public static Map<Object,Object> toProperties(Object object)
                                       throws PropertyException

Provides properties as Map object for given settings object.

Parameters:

object - settings holder

Returns:

properties

Throws:

PropertyException - if properties cannot be generated

setConverter

protected void setConverter(Class<?> type,
                            PropertyHelper.Converter<?> converter)

Adds converter for given class.

Parameters:

type - class

converter - converter