org.apache.jena.sparql.core.mem

Class PMapTripleTable

java.lang.Object

org.apache.jena.sparql.core.mem.OrderedTupleTable<TupleType,ConsumerType>

org.apache.jena.sparql.core.mem.PMapTupleTable<FourTupleMap.ThreeTupleMap,Triple,org.apache.jena.atlas.lib.tuple.TConsumer3<Node>>

org.apache.jena.sparql.core.mem.PMapTripleTable

All Implemented Interfaces:

TransactionalComponent, TripleTable, TupleTable<Triple>

public class PMapTripleTable
extends PMapTupleTable<FourTupleMap.ThreeTupleMap,Triple,org.apache.jena.atlas.lib.tuple.TConsumer3<Node>>
implements TripleTable

A TripleTable employing persistent maps to index triples in one particular slot order (e.g. SPO, OSP or POS).

Constructor Summary

Constructors

Constructor and Description
PMapTripleTable(String order)
PMapTripleTable(String canonical, String order)
PMapTripleTable(String tableName, org.apache.jena.atlas.lib.tuple.TupleMap order)

Method Summary

Modifier and Type	Method and Description
void	add(Triple t) Add a tuple to the table
void	delete(Triple t) Remove a tuple from the table
java.util.stream.Stream<Triple>	find(Node s, Node p, Node o) Search the table using a pattern of slots.

Methods inherited from class org.apache.jena.sparql.core.mem.PMapTupleTable

begin, clear, commit, end

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.apache.jena.sparql.core.mem.TripleTable

clear

Methods inherited from interface org.apache.jena.sparql.core.mem.TupleTable

abort

Methods inherited from interface org.apache.jena.sparql.core.mem.TransactionalComponent

begin, commit, end

Constructor Detail

PMapTripleTable

public PMapTripleTable(String order)

Parameters:

order - an internal order for this table

PMapTripleTable

public PMapTripleTable(String canonical,
                       String order)

Parameters:

canonical - the canonical order outside this table

order - the internal order for this table

PMapTripleTable

public PMapTripleTable(String tableName,
                       org.apache.jena.atlas.lib.tuple.TupleMap order)

Parameters:

tableName - a name for this table

order - the order of elements in this table

Method Detail

add

public void add(Triple t)

Description copied from interface: TupleTable

Add a tuple to the table

Specified by:

add in interface TupleTable<Triple>

Parameters:

t - the tuple to add

delete

public void delete(Triple t)

Description copied from interface: TupleTable

Remove a tuple from the table

Specified by:

delete in interface TupleTable<Triple>

Parameters:

t - the tuple to remove

find

public java.util.stream.Stream<Triple> find(Node s,
                                            Node p,
                                            Node o)

Description copied from interface: TripleTable

Search the table using a pattern of slots. Node.ANY or null will work as a wildcard.

Specified by:

find in interface TripleTable

Parameters:

s - the subject node of the pattern

p - the predicate node of the pattern

o - the object node of the pattern

Returns:

an Stream of matched triples