org.nuiton.util.decorator

Class MapPropertyHandler

java.lang.Object

org.nuiton.util.decorator.MapPropertyHandler

All Implemented Interfaces:

org.apache.commons.jxpath.DynamicPropertyHandler

public class MapPropertyHandler
extends Object
implements org.apache.commons.jxpath.DynamicPropertyHandler

A extended handler to deal with map in JXPath contexts.

The basic one in JXPath api only deals with map keys as string.

We offers a hook in method getKey(Object) to obtain a string representation of a real object in map (key or value).

More over, you can also access directly to a key or a value, using this syntax :

context.getValue(".[@name='key:programme2']")

context.getValue(".[@name='value:programme2']")

If the values are iterable, then will scan inot it when looking for a direct value.

Since:

2.3

Author:

tchemit

See Also:

DynamicPropertyHandler

Constructor Summary

Constructors

Constructor and Description
MapPropertyHandler()

Method Summary

Methods

Modifier and Type	Method and Description
protected String	getKey(Object o) Obtain a string representation of an object.
Object	getProperty(Object object, String propertyName)
Object	getPropertyKey(Map<?,?> map, String key) Obtain the key from the map keys which matches the given key.
String[]	getPropertyNames(Object object)
Object	getPropertyValue(Map<?,?> map, String value) Obtain the value from the map values which matches the given value.
void	setProperty(Object object, String propertyName, Object value)

Methods inherited from class java.lang.Object

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

Constructor Detail

MapPropertyHandler

public MapPropertyHandler()

Method Detail

getPropertyNames

public String[] getPropertyNames(Object object)

Specified by:

getPropertyNames in interface org.apache.commons.jxpath.DynamicPropertyHandler

getProperty

public Object getProperty(Object object,
                 String propertyName)

Specified by:

getProperty in interface org.apache.commons.jxpath.DynamicPropertyHandler

setProperty

public void setProperty(Object object,
               String propertyName,
               Object value)

Specified by:

setProperty in interface org.apache.commons.jxpath.DynamicPropertyHandler

getPropertyKey

public Object getPropertyKey(Map<?,?> map,
                    String key)

Obtain the key from the map keys which matches the given key.

To compare object ot string, please refers to the method getKey(Object).

Parameters:

map - the map to scan

key - the string representation of the required key as object

Returns:

the found key, or null if not found.

getPropertyValue

public Object getPropertyValue(Map<?,?> map,
                      String value)

Obtain the value from the map values which matches the given value.

To compare object to string, please refer to the method getKey(Object).

Parameters:

map - the map to scan

value - the string representation of the value

Returns:

the found value, or null if not found.}

getKey

protected String getKey(Object o)

Obtain a string representation of an object.

Parameters:

o - the object to decorate

Returns:

the string representation of the object