org.crsh.plugin
Class PropertyManager

java.lang.Object
  org.crsh.plugin.PropertyManager

 class PropertyManager
extends Object

Author:

Julien Viet

Field Summary

private static Logger	log .
private Map<String,Property<?>>	properties .

Constructor Summary

PropertyManager()

Method Summary

<T> Property<T>	getProperty(PropertyDescriptor<T> desc) Returns a property or null if it cannot be found.
private <T> Property<T>	getProperty(String propertyName, Class<T> type) Returns a property or null if it cannot be found.
<T> T	getPropertyValue(PropertyDescriptor<T> desc) Returns a property value or null if it cannot be found.
(package private) <T> void	parseProperty(PropertyDescriptor<T> desc, String value) Set a context property to a new value.
(package private) <T> void	setProperty(PropertyDescriptor<T> desc, T value) Set a context property to a new value.

Methods inherited from class java.lang.Object

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

Field Detail

log

private static final Logger log

.

properties

private final Map<String,Property<?>> properties

.

Constructor Detail

PropertyManager

PropertyManager()

Method Detail

getPropertyValue

public <T> T getPropertyValue(PropertyDescriptor<T> desc)
                   throws NullPointerException

Returns a property value or null if it cannot be found.

Type Parameters:

T - the property parameter type

Parameters:

desc - the property descriptor

Returns:

the property value

Throws:

NullPointerException - if the descriptor argument is null

getProperty

public <T> Property<T> getProperty(PropertyDescriptor<T> desc)
                        throws NullPointerException

Returns a property or null if it cannot be found.

Type Parameters:

T - the property parameter type

Parameters:

desc - the property descriptor

Returns:

the property object

Throws:

NullPointerException - if the descriptor argument is null

getProperty

private <T> Property<T> getProperty(String propertyName,
                                    Class<T> type)
                         throws NullPointerException

Returns a property or null if it cannot be found.

Type Parameters:

T - the property parameter type

Parameters:

propertyName - the name of the property

type - the property type

Returns:

the property object

Throws:

NullPointerException - if any argument is null

setProperty

<T> void setProperty(PropertyDescriptor<T> desc,
                     T value)
           throws NullPointerException

Set a context property to a new value. If the provided value is null, then the property is removed.

Type Parameters:

T - the property parameter type

Parameters:

desc - the property descriptor

value - the property value

Throws:

NullPointerException - if the descriptor argument is null

parseProperty

<T> void parseProperty(PropertyDescriptor<T> desc,
                       String value)
             throws NullPointerException,
                    IllegalArgumentException

Set a context property to a new value.

Type Parameters:

T - the property parameter type

Parameters:

desc - the property descriptor

value - the property value

Throws:

NullPointerException - if the descriptor argument or the value is null

IllegalArgumentException - if the string value cannot be converted to the property type