org.apache.commons.rdf.api

Interface GraphLike<T extends TripleLike>

Type Parameters:

T - A TripleLike type used by the graph methods, typically Triple or Quad

All Known Subinterfaces:

Dataset, Graph, JenaDataset, JenaGraph, JsonLdDataset, JsonLdGraph, JsonLdGraphLike<T>, JsonLdUnionGraph, RDF4JDataset, RDF4JGraph, RDF4JGraphLike<T>

All Known Implementing Classes:

DatasetGraphView

public interface GraphLike<T extends TripleLike>

A "graph-like" interface that contains TripleLike statements.

Extended by Graph (for Triple) and Dataset (for Quad).

Unlike Graph and Dataset, this interface can support generalised TripleLike or QuadLike statements, but does not imply semantics like size() or the requirement of mapping RDFTerm instances from different implementations.

As TripleLike do not have a specific Object.equals(Object) semantics, the behaviour of methods like contains(TripleLike) and remove(TripleLike) is undefined for arguments that are not object identical to previously added or returned TripleLike statements.

Since:

0.3.0-incubating

See Also:

Graph, Dataset, TripleLike

Method Summary

Modifier and Type	Method and Description
void	add(T statement) Add a statement.
void	clear() Remove all statements.
boolean	contains(T statement) Check if statement is contained.
Iterable<T>	iterate() Iterate over contained statements.
void	remove(T statement) Add a statement.
long	size() Number of statements.
Stream<? extends T>	stream() Return a Stream of contained statements.

Method Detail

add

void add(T statement)

Add a statement.

Parameters:

statement - The TripleLike statement to add

contains

boolean contains(T statement)

Check if statement is contained.

Parameters:

statement - The TripleLike statement to check

Returns:

True if the statement is contained

remove

void remove(T statement)

Add a statement.

Parameters:

statement - The TripleLike statement to add

clear

void clear()

Remove all statements.

size

long size()

Number of statements.

Returns:

Number of statements

stream

Stream<? extends T> stream()

Return a Stream of contained statements.

Returns:

A Stream of TripleLike statements.

iterate

Iterable<T> iterate()
             throws ConcurrentModificationException,
                    IllegalStateException

Iterate over contained statements.

Returns:

An Iterable of TripleLike statements.

Throws:

IllegalStateException - if the Iterable has been reused

ConcurrentModificationException - if a concurrency conflict occurs while the Iterator is active.