jaxx.runtime.decorator
Class JXPathDecorator<O>

java.lang.Object
  jaxx.runtime.decorator.Decorator<O>
      jaxx.runtime.decorator.JXPathDecorator<O>

Type Parameters:

O - type of data to decorate

All Implemented Interfaces:

java.io.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 = DecoratorUtils.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:

1.7.2 (was previously jaxx.runtime.JXPathDecorator)

Author:

chemit

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 java.lang.String	initialExpression the initial expression used to compute the decorator context.
protected int	nbToken nb jxpath tokens to compute

Fields inherited from class jaxx.runtime.decorator.Decorator

internalClass

Constructor Summary

protected

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

Method Summary

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

Methods inherited from class jaxx.runtime.decorator.Decorator

getInternalClass

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 java.lang.String initialExpression

the initial expression used to compute the decorator context.

Constructor Detail

JXPathDecorator

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

Throws:

java.lang.IllegalArgumentException

java.lang.NullPointerException

Method Detail

toString

public java.lang.String toString(java.lang.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 java.lang.String getProperty(int pos)

getExpression

public java.lang.String getExpression()

getTokens

public java.lang.String[] getTokens()

getNbToken

public int getNbToken()

getInitialExpression

public java.lang.String getInitialExpression()

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object

setContext

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

getComparator

protected java.util.Comparator<O> getComparator(int pos)

getTokenValue

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

ensureTokenIndex

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