net.sf.saxon.trans.rules

Class RuleChain

java.lang.Object

net.sf.saxon.trans.rules.RuleChain

public class RuleChain
extends java.lang.Object

A chain of rules: actually in this incarnation just a pointer to the first rule in the chain, the others being linked together each to the next.

Field Summary

Fields

Modifier and Type	Field and Description
java.lang.Object	optimizationData

Constructor Summary

Constructors

Constructor and Description
RuleChain() Create an empty rule chain
RuleChain(Rule head) Create an rule chain with a give rule as the head of the chain

Method Summary

Modifier and Type	Method and Description
int	getLength() Get the length of the rule chain
Rule	head() Get the first rule in the chain, or null if the chain is empty
void	setHead(Rule head) Set the first rule in the chain, or null if the chain is empty

Methods inherited from class java.lang.Object

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

Field Detail

optimizationData

public java.lang.Object optimizationData

Constructor Detail

RuleChain

public RuleChain()

Create an empty rule chain

RuleChain

public RuleChain(Rule head)

Create an rule chain with a give rule as the head of the chain

Parameters:

head - the head of a chain of rules

Method Detail

head

public Rule head()

Get the first rule in the chain, or null if the chain is empty

Returns:

the first rule in the chain, or null if empty

setHead

public void setHead(Rule head)

Set the first rule in the chain, or null if the chain is empty

Parameters:

head - the first rule in the chain, or null if empty

getLength

public int getLength()

Get the length of the rule chain

Returns:

the number of rules in the chain