Package com.stardog.stark

Class StatementPattern

java.lang.Object

com.stardog.stark.StatementPattern

All Implemented Interfaces:

Resource, Statement, Value, Serializable, Predicate<Statement>

public final class StatementPattern
extends Object
implements Statement, Predicate<Statement>

A Statement implementation representing a Statement pattern, which is a Statement where some or all of the SPOC elements are a wildcard.

Given a pattern of `pattern(*, :p, *)` it would match `:s :p :o` and `:foo :p :bar` but not `:s :pred :o`.

Since:

1.0

Version:

1.0

Author:

Michael Grove

See Also:

• Serialized Form

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static class	StatementPattern.Builder

Field Summary

Fields

Modifier and Type	Field	Description
static final IRI	WILDCARD

Method Summary

Modifier and Type	Method	Description
Resource	context()	The name of the graph in which this statement appears.
boolean	equals(Object theObj)
int	hashCode()
static StatementPattern.Builder	newBuilder()
static StatementPattern	o(Value theObject)
Value	object()	The object of the statement
static StatementPattern	p(IRI thePredicate)
static StatementPattern	po(IRI thePred, Value theObject)
IRI	predicate()	The predicate of the statement
static StatementPattern	s(Resource theSubj)
static StatementPattern	sp(Resource theSubj, IRI thePred)
static StatementPattern	spo(Resource theSubj, IRI thePred, Value theObj)
Resource	subject()	The subject of the statement
boolean	test(Statement theStatement)	Return whether or not this pattern matches the given Statement

Methods inherited from class java.lang.Object

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

Methods inherited from interface java.util.function.Predicate

and, negate, or

Field Details

WILDCARD

public static final IRI WILDCARD

Method Details

test

public boolean test(@Nonnull
 Statement theStatement)

Return whether or not this pattern matches the given Statement

Specified by:

test in interface Predicate<Statement>

Parameters:

theStatement - the Statement

Returns:

true if matches, false otherwise

subject

@Nonnull
public Resource subject()

The subject of the statement

Specified by:

subject in interface Statement

Returns:

the subject

predicate

@Nonnull
public IRI predicate()

The predicate of the statement

Specified by:

predicate in interface Statement

Returns:

the predicate

object

@Nonnull
public Value object()

The object of the statement

Specified by:

object in interface Statement

Returns:

the object

context

@Nonnull
public Resource context()

The name of the graph in which this statement appears.

Specified by:

context in interface Statement

Returns:

the name of the graph, within an RDF dataset, which contains this statement. if the `Statement` is in the default graph, Values.DEFAULT_GRAPH will be returned.

See Also:

• RDF Graphs

equals

public boolean equals(Object theObj)

Overrides:

equals in class Object

hashCode

public int hashCode()

Overrides:

hashCode in class Object

newBuilder

@Nonnull
public static StatementPattern.Builder newBuilder()

o

@Nonnull
public static StatementPattern o(@Nonnull
 Value theObject)

p

@Nonnull
public static StatementPattern p(@Nonnull
 IRI thePredicate)

s

@Nonnull
public static StatementPattern s(@Nonnull
 Resource theSubj)

sp

@Nonnull
public static StatementPattern sp(@Nonnull
 Resource theSubj,
 @Nonnull
 IRI thePred)

spo

@Nonnull
public static StatementPattern spo(@Nonnull
 Resource theSubj,
 @Nonnull
 IRI thePred,
 @Nonnull
 Value theObj)

po

@Nonnull
public static StatementPattern po(@Nonnull
 IRI thePred,
 @Nonnull
 Value theObject)