org.nuiton.util.decorator
Class JXPathDecorator<O>

java.lang.Object
  org.nuiton.util.decorator.Decorator<O>
      org.nuiton.util.decorator.JXPathDecorator<O>

Type Parameters:

O - type of data to decorate

All Implemented Interfaces:

Serializable

Direct Known Subclasses:

MultiJXPathDecorator

public class JXPathDecorator<O>
extends Decorator<O>

JXPath decorator based on String.format(String, Object...) method.

To use it, give to him a expression where all jxpath to apply on bean are boxed in ${}.

After the jxpath token you must specifiy the formatter to apply of the jxpath token.

For example :

 Decorator<Object> d = DecoratorUtil.newJXPathDecorator(
 JXPathDecorator.class,"expr = ${expressions}$s");
 assert "expr = %1$s" == d.getExpression();
 assert 1 == d.getNbToken();
 assert java.util.Arrays.asList("expression") == d.getTokens();
 assert "expr = %1$s" == d.toString(d);
 

Since:

2.3

Author:

tchemit

See Also:

Decorator, Serialized Form

Nested Class Summary

static class	JXPathDecorator.Context<O>
static class	JXPathDecorator.JXPathComparator<O>

Field Summary

protected JXPathDecorator.Context<O>	context the computed context of the decorator
protected String	initialExpression the initial expression used to compute the decorator context.
protected int	nbToken nb jxpath tokens to compute

Fields inherited from class org.nuiton.util.decorator.Decorator

type

Constructor Summary

protected

JXPathDecorator(Class<O> internalClass, String expression, JXPathDecorator.Context<O> context)

Method Summary

protected static void	ensureTokenIndex(JXPathDecorator<?> decorator, int pos)
protected Comparator<O>	getComparator(int pos)
String	getExpression()
String	getInitialExpression()
int	getNbToken()
String	getProperty(int pos)
String[]	getTokens()
protected Comparable<Comparable<?>>	getTokenValue(org.apache.commons.jxpath.JXPathContext jxcontext, String token)
void	setContext(JXPathDecorator.Context<O> context)
String	toString()
String	toString(Object bean)

Methods inherited from class org.nuiton.util.decorator.Decorator

getInternalClass, getType

Methods inherited from class java.lang.Object

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

Field Detail

context

protected JXPathDecorator.Context<O> context

the computed context of the decorator

nbToken

protected int nbToken

nb jxpath tokens to compute

initialExpression

protected String initialExpression

the initial expression used to compute the decorator context.

Constructor Detail

JXPathDecorator

protected JXPathDecorator(Class<O> internalClass,
                          String expression,
                          JXPathDecorator.Context<O> context)
                   throws IllegalArgumentException,
                          NullPointerException

Throws:

IllegalArgumentException

NullPointerException

Method Detail

toString

public String toString(Object bean)

Specified by:

toString in class Decorator<O>

Parameters:

bean - the bean to decorate

Returns:

the string value of the given bean

getProperty

public String getProperty(int pos)

getExpression

public String getExpression()

getTokens

public String[] getTokens()

getNbToken

public int getNbToken()

getInitialExpression

public String getInitialExpression()

toString

public String toString()

Overrides:

toString in class Object

setContext

public void setContext(JXPathDecorator.Context<O> context)

getComparator

protected Comparator<O> getComparator(int pos)

getTokenValue

protected Comparable<Comparable<?>> getTokenValue(org.apache.commons.jxpath.JXPathContext jxcontext,
                                                  String token)

ensureTokenIndex

protected static void ensureTokenIndex(JXPathDecorator<?> decorator,
                                       int pos)