Package org.apache.jena.sparql.engine.http

Class Service

java.lang.Object

org.apache.jena.sparql.engine.http.Service

public class Service
extends java.lang.Object

Execution of OpService

Field Summary

Fields

Modifier and Type	Field	Description
static java.lang.String	base
static Symbol	queryClient	Use to set the HTTP client for a service.
static Symbol	queryCompression	Use to set the HttpQuery.allowCompression flag.
static Symbol	queryTimeout	Set timeout.
static Symbol	serviceAllowed	Control whether SERVICE processing is allowed.
static Symbol	serviceContext	Use this Symbol to allow passing additional service context variables SERVICE <IRI> call.

Constructor Summary

Constructors

Constructor	Description
Service()

Method Summary

Modifier and Type	Method	Description
static QueryIterator	exec(OpService op, Context context)	Executes a service operator

Methods inherited from class java.lang.Object

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

Field Detail

base

public static final java.lang.String base

See Also:

Constant Field Values

queryCompression

public static final Symbol queryCompression

Use to set the HttpQuery.allowCompression flag.

queryClient

public static final Symbol queryClient

Use to set the HTTP client for a service.

serviceContext

public static final Symbol serviceContext

Use this Symbol to allow passing additional service context variables SERVICE <IRI> call. Parameters need to be grouped by SERVICE <IRI>, a Map<String, Context> is assumed. The key of the first map is the SERVICE IRI, the value is a Context who's values will override any defaults in the original context.

serviceAllowed

public static final Symbol serviceAllowed

Control whether SERVICE processing is allowed. If the context contains this, and it is set to "false", then SERVICE is not allowed.

queryTimeout

public static final Symbol queryTimeout

Set timeout. The value of this symbol gives the value of the timeout in milliseconds

• A Number; the long value is used
• A string, e.g. "1000", parsed as a number
• A string, as two numbers separated by a comma, e.g. "500,10000" parsed as two numbers

The first value is passed to HttpQuery.setConnectTimeout() the second, if it exists, is passed to HttpQuery.setReadTimeout()

Constructor Detail

Service

public Service()

Method Detail

exec

public static QueryIterator exec(OpService op,
                                 Context context)

Executes a service operator

Parameters:

op - Service

context - Context

Returns:

Query iterator of service results