org.htmlparser.filters

Class XorFilter

public class XorFilter extends Object implements NodeFilter

Accepts nodes matching an odd number of its predicates filters (XOR operation). For example, where it has two filters, it accepts only if and only if one of the two filters accepts the Node, but does not accept if both filters accept the Node.

Field Summary
protected NodeFilter[]	mPredicates The predicates that are to be xor'ed together;

Constructor Summary
	XorFilter() Creates a new instance of an XorFilter.
	XorFilter(NodeFilter left, NodeFilter right) Creates an XorFilter that accepts nodes acceptable to either filter, but not both.
	XorFilter(NodeFilter[] predicates) Creates an XorFilter that accepts nodes acceptable an odd number of the given filters.

Method Summary
boolean	accept(Node node) Accept nodes that are acceptable to an odd number of its predicate filters.
NodeFilter[]	getPredicates() Get the predicates used by this XorFilter.
void	setPredicates(NodeFilter[] predicates) Set the predicates for this XorFilter.

Field Detail

mPredicates

protected NodeFilter[] mPredicates

The predicates that are to be xor'ed together;

Constructor Detail

XorFilter

public XorFilter()

Creates a new instance of an XorFilter. With no predicates, this would always answer false to XorFilter.

See Also: XorFilter

XorFilter

public XorFilter(NodeFilter left, NodeFilter right)

Creates an XorFilter that accepts nodes acceptable to either filter, but not both.

Parameters: left One filter. right The other filter.

XorFilter

public XorFilter(NodeFilter[] predicates)

Creates an XorFilter that accepts nodes acceptable an odd number of the given filters.

Parameters: predicates The list of filters.

Method Detail

accept

public boolean accept(Node node)

Accept nodes that are acceptable to an odd number of its predicate filters.

Parameters: node The node to check.

Returns: true if an odd number of the predicate filters find the node is acceptable, false otherwise.

getPredicates

public NodeFilter[] getPredicates()

Get the predicates used by this XorFilter.

Returns: The predicates currently in use.

setPredicates

public void setPredicates(NodeFilter[] predicates)

Set the predicates for this XorFilter.

Parameters: predicates The list of predidcates to use in XorFilter.

HTML Parser is an open source library released under LGPL.