org.eclipse.rdf4j.query

Enum Query.QueryType

java.lang.Object

java.lang.Enum<Query.QueryType>

org.eclipse.rdf4j.query.Query.QueryType

All Implemented Interfaces:

Serializable, Comparable<Query.QueryType>

Enclosing interface:

Query

public static enum Query.QueryType
extends Enum<Query.QueryType>

The different types of queries that RDF4J recognizes: boolean queries, graph queries, and tuple queries.

Since:

3.2.0

Enum Constant Summary

Enum Constants

Enum Constant and Description
BOOLEAN Boolean queries (such as the SPARQL ASK query form) return either true or false as the result.
GRAPH Graph queries (such as the SPARQL CONSTRUCT and DESCRIBE query form) return a sequence of RDF statements as the result.
TUPLE Tuple queries (such as the SPARQL SELECT query form) return a sequence of sets of variable bindings as the result.

Method Summary

Modifier and Type	Method and Description
static Query.QueryType	valueOf(String name) Returns the enum constant of this type with the specified name.
static Query.QueryType[]	values() Returns an array containing the constants of this enum type, in the order they are declared.

Methods inherited from class java.lang.Enum

clone, compareTo, equals, finalize, getDeclaringClass, hashCode, name, ordinal, toString, valueOf

Methods inherited from class java.lang.Object

getClass, notify, notifyAll, wait, wait, wait

Enum Constant Detail

BOOLEAN

public static final Query.QueryType BOOLEAN

Boolean queries (such as the SPARQL ASK query form) return either true or false as the result.

GRAPH

public static final Query.QueryType GRAPH

Graph queries (such as the SPARQL CONSTRUCT and DESCRIBE query form) return a sequence of RDF statements as the result.

TUPLE

public static final Query.QueryType TUPLE

Tuple queries (such as the SPARQL SELECT query form) return a sequence of sets of variable bindings as the result.

Method Detail

values

public static Query.QueryType[] values()

Returns an array containing the constants of this enum type, in the order they are declared. This method may be used to iterate over the constants as follows:

for (Query.QueryType c : Query.QueryType.values())
    System.out.println(c);

Returns:

an array containing the constants of this enum type, in the order they are declared

valueOf

public static Query.QueryType valueOf(String name)

Returns the enum constant of this type with the specified name. The string must match exactly an identifier used to declare an enum constant in this type. (Extraneous whitespace characters are not permitted.)

Parameters:

name - the name of the enum constant to be returned.

Returns:

the enum constant with the specified name

Throws:

IllegalArgumentException - if this enum type has no constant with the specified name

NullPointerException - if the argument is null