org.apache.tomcat.util.digester

Interface Rules

All Known Implementing Classes:

RulesBase

public interface Rules

Public interface defining a collection of Rule instances (and corresponding matching patterns) plus an implementation of a matching policy that selects the rules that match a particular pattern of nested elements discovered during parsing.

Method Summary

Modifier and Type	Method and Description
void	add(String pattern, Rule rule) Register a new Rule instance matching the specified pattern.
void	clear() Clear all existing Rule instance registrations.
Digester	getDigester()
List<Rule>	match(String namespaceURI, String pattern) Return a List of all registered Rule instances that match the specified nesting pattern, or a zero-length List if there are no matches.
List<Rule>	rules() Return a List of all registered Rule instances, or a zero-length List if there are no registered Rule instances.
void	setDigester(Digester digester) Set the Digester instance with which this Rules instance is associated.

Method Detail

getDigester

Digester getDigester()

Returns:

the Digester instance with which this Rules instance is associated.

setDigester

void setDigester(Digester digester)

Set the Digester instance with which this Rules instance is associated.

Parameters:

digester - The newly associated Digester instance

add

void add(String pattern,
         Rule rule)

Register a new Rule instance matching the specified pattern.

Parameters:

pattern - Nesting pattern to be matched for this Rule

rule - Rule instance to be registered

clear

void clear()

Clear all existing Rule instance registrations.

match

List<Rule> match(String namespaceURI,
                 String pattern)

Return a List of all registered Rule instances that match the specified nesting pattern, or a zero-length List if there are no matches. If more than one Rule instance matches, they must be returned in the order originally registered through the add() method.

Parameters:

namespaceURI - Namespace URI for which to select matching rules, or null to match regardless of namespace URI

pattern - Nesting pattern to be matched

Returns:

a rules list

rules

List<Rule> rules()

Return a List of all registered Rule instances, or a zero-length List if there are no registered Rule instances. If more than one Rule instance has been registered, they must be returned in the order originally registered through the add() method.

Returns:

a rules list