Package net.ontopia.topicmaps.query.spi

Class JavaPredicate

java.lang.Object

net.ontopia.topicmaps.query.spi.JavaPredicate

All Implemented Interfaces:

BasicPredicateIF, PredicateIF

Direct Known Subclasses:

FilterPredicate, ProcessPredicate

public abstract class JavaPredicate
extends Object
implements BasicPredicateIF

INTERNAL: Abstract predicate class that works as a common superclass for the real predicate classes. Don't subclass this one directly; instead, subclass one of its subclasses, FilterPredicate or ProcessPredicated, depending on what kind of predicate you want.

Constructor Summary

Constructors

Constructor	Description
JavaPredicate()

Method Summary

Modifier and Type	Method	Description
int	getCost(boolean[] boundparams)	INTERNAL.
String	getModuleURI()
String	getName()	INTERNAL: Returns the name of the predicate.
Map	getParameters()
String	getPredicateName()
String	getSignature()	INTERNAL: Returns a string representing the signature of the predicate.
TopicMapIF	getTopicMap()
abstract QueryMatches	satisfy(QueryMatches matches, Object[] arguments)	INTERNAL: Internal machinery.
void	setModuleURI(String moduleURI)
void	setParameters(Map parameters)
void	setPredicateName(String predicateName)
void	setTopicMap(TopicMapIF topicmap)

Methods inherited from class java.lang.Object

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

Constructor Detail

JavaPredicate

public JavaPredicate()

Method Detail

getName

public String getName()

Description copied from interface: PredicateIF

INTERNAL: Returns the name of the predicate. This will usually be the name of the predicate within its module ('instance-of', '/=', 'starts-with'), but some virtual predicates cannot be reached from the syntax and may return names that will not parse.

Specified by:

getName in interface PredicateIF

getSignature

public String getSignature()

Description copied from interface: PredicateIF

INTERNAL: Returns a string representing the signature of the predicate. The string consists of a whitespace-separated list of arguments, where each argument is made up of tokens representing the type or cardinality of that argument.

The instance-of predicate would have a signature of "t t", while /= would have ". .", and in would have ". .+". For full details, see topicmaps.impl.utils.ArgumentValidator.

Specified by:

getSignature in interface PredicateIF

getCost

public int getCost(boolean[] boundparams)

Description copied from interface: PredicateIF

INTERNAL.

Specified by:

getCost in interface PredicateIF

getModuleURI

public String getModuleURI()

setModuleURI

public void setModuleURI(String moduleURI)

getPredicateName

public String getPredicateName()

setPredicateName

public void setPredicateName(String predicateName)

getTopicMap

public TopicMapIF getTopicMap()

setTopicMap

public void setTopicMap(TopicMapIF topicmap)

getParameters

public Map getParameters()

setParameters

public void setParameters(Map parameters)

satisfy

public abstract QueryMatches satisfy(QueryMatches matches,
                                     Object[] arguments)
                              throws InvalidQueryException

INTERNAL: Internal machinery.

Specified by:

satisfy in interface BasicPredicateIF

Throws:

InvalidQueryException