Class AbstractHTTPQuery

java.lang.Object

org.eclipse.rdf4j.query.impl.AbstractOperation

org.eclipse.rdf4j.query.impl.AbstractQuery

org.eclipse.rdf4j.http.client.query.AbstractHTTPQuery

All Implemented Interfaces:

Operation, Query

Direct Known Subclasses:

HTTPBooleanQuery, HTTPGraphQuery, HTTPTupleQuery, SPARQLBooleanQuery, SPARQLGraphQuery, SPARQLTupleQuery

public abstract class AbstractHTTPQuery
extends AbstractQuery

Base class for any Query operation over HTTP.

Author:

Andreas Schwarte

Nested Class Summary

Nested classes/interfaces inherited from interface Query

Query.QueryType

Modifier and Type	Interface	Description
static enum	Query.QueryType	The different types of queries that RDF4J recognizes: boolean queries, graph queries, and tuple queries.

Field Summary

Fields

Modifier and Type	Field	Description
protected final String	baseURI
protected final QueryLanguage	queryLanguage
protected final String	queryString

Fields inherited from class AbstractOperation

bindings, dataset, includeInferred

Modifier and Type	Field	Description
protected final MapBindingSet	bindings
protected Dataset	dataset
protected boolean	includeInferred

Constructor Summary

Constructors

Modifier	Constructor	Description
protected	AbstractHTTPQuery(SPARQLProtocolSession httpClient, QueryLanguage queryLanguage, String queryString, String baseURI)

Method Summary

Modifier and Type	Method	Description
Binding[]	getBindingsArray()
protected SPARQLProtocolSession	getHttpClient()
void	setMaxExecutionTime(int maxExecutionTimeSeconds)	Specifies the maximum time that an operation is allowed to run.
String	toString()

Methods inherited from class AbstractQuery

getMaxQueryTime, setMaxQueryTime

Modifier and Type	Method	Description
int	getMaxQueryTime()	Deprecated.
void	setMaxQueryTime(int maxQueryTimeSeconds)	Deprecated.

Methods inherited from class AbstractOperation

clearBindings, getBindings, getDataset, getIncludeInferred, getMaxExecutionTime, removeBinding, setBinding, setDataset, setIncludeInferred

Modifier and Type	Method	Description
void	clearBindings()	Removes all previously set bindings.
BindingSet	getBindings()	Retrieves the bindings that have been set on this operation.
Dataset	getDataset()	Gets the dataset that has been set using Operation.setDataset(Dataset), if any.
boolean	getIncludeInferred()	Returns whether or not this operation will return inferred statements (if any are present in the repository).
int	getMaxExecutionTime()	Returns the maximum operation execution time.
void	removeBinding(String name)	Removes a previously set binding on the supplied variable.
void	setBinding(String name, Value value)	Binds the specified variable to the supplied value.
void	setDataset(Dataset dataset)	Specifies the dataset against which to execute an operation, overriding any dataset that is specified in the operation itself.
void	setIncludeInferred(boolean includeInferred)	Determine whether evaluation results of this operation should include inferred statements (if any inferred statements are present in the repository).

Methods inherited from class Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Methods inherited from interface Query

explain

Modifier and Type	Method	Description
default Explanation	explain(Explanation.Level level)	Explain how the query will be (or has been) executed/evaluated by returning an explanation of the query plan.

Field Details

queryLanguage

protected final QueryLanguage queryLanguage

queryString

protected final String queryString

baseURI

protected final String baseURI

Constructor Details

AbstractHTTPQuery

protected AbstractHTTPQuery(SPARQLProtocolSession httpClient,
 QueryLanguage queryLanguage,
 String queryString,
 String baseURI)

Method Details

getHttpClient

protected SPARQLProtocolSession getHttpClient()

Returns:

Returns the SPARQLProtocolSession to be used for all HTTP based interaction

getBindingsArray

public Binding[] getBindingsArray()

setMaxExecutionTime

public void setMaxExecutionTime(int maxExecutionTimeSeconds)

Description copied from interface: Operation

Specifies the maximum time that an operation is allowed to run. The operation will be interrupted when it exceeds the time limit. Any consecutive requests to fetch query results will result in QueryInterruptedExceptions or UpdateExecutionExceptions (depending on whether the operation is a query or an update).

Specified by:

setMaxExecutionTime in interface Operation

Overrides:

setMaxExecutionTime in class AbstractOperation

Parameters:

maxExecutionTimeSeconds - The maximum query time, measured in seconds. A negative or zero value indicates an unlimited execution time (which is the default).

toString

public String toString()

Overrides:

toString in class Object