com.epimorphics.lda.core

Class ChainTree

java.lang.Object

com.epimorphics.lda.core.ChainTree

public class ChainTree
extends Object

A collection of property chains represented as a triple (?item predicate ?value) and all the different tails of the chain, the followers, which are ChainTrees (qv).

Field Summary

Fields

Modifier and Type	Field and Description
protected com.epimorphics.lda.core.ChainTrees	followers
protected RDFQ.Triple	triple

Method Summary

Methods

Modifier and Type	Method and Description
static com.epimorphics.lda.core.ChainTrees	make(Any r, View.State st, List<PropertyChain> chains) Convert a list of property chains to the chain tree representation.
void	renderTriples(StringBuilder sb, PrefixLogger pl) Render all (and only) the triples in this ChainTree as SPARQL triples.
void	renderWhere(StringBuilder sb, PrefixLogger pl) Render this ChainTree into sb as SPARQL constructs suitable for use in the WHERE clause of a SPARQL query.

Methods inherited from class java.lang.Object

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

Field Detail

triple

protected final RDFQ.Triple triple

followers

protected final com.epimorphics.lda.core.ChainTrees followers

Method Detail

renderTriples

public void renderTriples(StringBuilder sb,
                 PrefixLogger pl)

Render all (and only) the triples in this ChainTree as SPARQL triples.

renderWhere

public void renderWhere(StringBuilder sb,
               PrefixLogger pl)

Render this ChainTree into sb as SPARQL constructs suitable for use in the WHERE clause of a SPARQL query.

make

public static com.epimorphics.lda.core.ChainTrees make(Any r,
                                       View.State st,
                                       List<PropertyChain> chains)

Convert a list of property chains to the chain tree representation. Convert wildcard predicates (originally '*' in the property chain string, and as a magic property in the PropertyChain objects) to a fresh variable.