Package org.mycore.access.facts

Class MCRFactsHolder

java.lang.Object

org.mycore.access.facts.MCRFactsHolder

public class MCRFactsHolder
extends Object

This class holds all facts which are validated as 'true' If an identical fact is request again during the rules processing the result is taken from here and won't be calculated again. Internally it also stores the fact computers, for easier access. Fact computers are usually the conditions parsed from the rules.xml.

Author:

Robert Stephan

Constructor Summary

Constructors

Constructor	Description
MCRFactsHolder(Collection<MCRFactComputable<MCRFact<?>>> computers)

Method Summary

Modifier and Type	Method	Description
void	add(MCRFact<?> fact)
boolean	isFact(String factName, String term)
<F extends MCRFact<?>> Optional<F>	require(String factName)
Optional<MCRFact<?>>	require(String factName, MCRFactComputable<MCRFact<?>> factComputer)
String	toString()

Methods inherited from class java.lang.Object

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

Constructor Details

MCRFactsHolder

public MCRFactsHolder(Collection<MCRFactComputable<MCRFact<?>>> computers)

Method Details

add

public void add(MCRFact<?> fact)

isFact

public boolean isFact(String factName,
 String term)

require

public Optional<MCRFact<?>> require(String factName,
 MCRFactComputable<MCRFact<?>> factComputer)

require

public <F extends MCRFact<?>> Optional<F> require(String factName)

toString

public String toString()

Overrides:

toString in class Object