net.ontopia.topicmaps.query.impl.basic
Class JavaSearcherPredicate

java.lang.Object
  net.ontopia.topicmaps.query.impl.basic.JavaSearcherPredicate

All Implemented Interfaces:

BasicPredicateIF, PredicateIF

public class JavaSearcherPredicate
extends Object
implements BasicPredicateIF

EXPERIMENTAL: Java searcher predicate.

Field Summary

protected String	name
protected SearcherIF	searcher
protected TopicMapIF	topicmap

Constructor Summary

JavaSearcherPredicate(String name, TopicMapIF topicmap, SearcherIF searcher)

Method Summary

int	getCost(boolean[] boundparams) INTERNAL.
String	getName() INTERNAL: Returns the name of the predicate.
protected Object	getObject(Object value, int valtype)
String	getSignature() INTERNAL: Returns a string representing the signature of the predicate.
QueryMatches	satisfy(QueryMatches matches, Object[] arguments)

Methods inherited from class java.lang.Object

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

Field Detail

name

protected String name

topicmap

protected TopicMapIF topicmap

searcher

protected SearcherIF searcher

Constructor Detail

JavaSearcherPredicate

public JavaSearcherPredicate(String name,
                             TopicMapIF topicmap,
                             SearcherIF searcher)

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

satisfy

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

Specified by:

satisfy in interface BasicPredicateIF

Throws:

InvalidQueryException

getObject

protected Object getObject(Object value,
                           int valtype)