tigase.jaxmpp.core.client.criteria
Class ElementCriteria

java.lang.Object
  tigase.jaxmpp.core.client.criteria.ElementCriteria

All Implemented Interfaces:

Criteria

public class ElementCriteria
extends Object
implements Criteria

Simple implementation of Criteria to check element name and its attributes..

Field Summary

protected HashMap<String,String>	attrs
protected String	name
protected Criteria	nextCriteria

Constructor Summary

ElementCriteria(String name, String[] attname, String[] attValue)
Construct criteria.

Method Summary

Criteria	add(Criteria criteria) Adds restriction for deeper level of elements.
static ElementCriteria	empty() Makes criteria object what accepts all elements.
boolean	match(Element element) This method checks if element match to conditions.
static ElementCriteria	name(String name) Makes criteria object to check name of element.
static ElementCriteria	name(String name, String xmlns) Makes criteria object to check name of element and its namespace.
static ElementCriteria	name(String name, String[] attNames, String[] attValues)
static ElementCriteria	xmlns(String xmlns) Makes criteria checking only xmlns attribute.

Methods inherited from class java.lang.Object

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

Field Detail

attrs

protected HashMap<String,String> attrs

name

protected String name

nextCriteria

protected Criteria nextCriteria

Constructor Detail

ElementCriteria

public ElementCriteria(String name,
                       String[] attname,
                       String[] attValue)

Construct criteria.

Parameters:

name - name of element. If null then any elements name will be accepted;

attname - names of required attributes

attValue - value of requird attrivutes

Method Detail

empty

public static final ElementCriteria empty()

Makes criteria object what accepts all elements.

Returns:

criteria

name

public static final ElementCriteria name(String name)

Makes criteria object to check name of element.

Parameters:

name - expected element name.

Returns:

criteria

name

public static final ElementCriteria name(String name,
                                         String xmlns)

Makes criteria object to check name of element and its namespace.

Parameters:

name - expected name of element.

xmlns - expected xmlns

Returns:

criteria

name

public static final ElementCriteria name(String name,
                                         String[] attNames,
                                         String[] attValues)

xmlns

public static final ElementCriteria xmlns(String xmlns)

Makes criteria checking only xmlns attribute.

Parameters:

xmlns - expected xmlns

Returns:

criteria

add

public Criteria add(Criteria criteria)

Adds restriction for deeper level of elements.

For example:
If you have structure of elements: <A><B></B></A>
then, to check elements A and B you should use construction like this: critToCheckA.add(critToCheckB);

Specified by:

add in interface Criteria

Parameters:

criteria - restriction to add

Returns:

match

public boolean match(Element element)
              throws XMLException

This method checks if element match to conditions.

Specified by:

match in interface Criteria

Parameters:

element - element to check

Returns:

true if element match.

Throws:

XMLException