org.dllearner.kb.sparql
Class HttpQuery

java.lang.Object
  com.hp.hpl.jena.sparql.engine.http.Params
      org.dllearner.kb.sparql.HttpQuery

public class HttpQuery
extends com.hp.hpl.jena.sparql.engine.http.Params

Create an execution object for performing a query on a model over HTTP. This is the main protocol engine for HTTP query. There are higher level classes for doing a query and presenting the results in an API fashion. If the query string is large, then HTTP POST is used.

Nested Class Summary

Nested classes/interfaces inherited from class com.hp.hpl.jena.sparql.engine.http.Params

com.hp.hpl.jena.sparql.engine.http.Params.Pair

Field Summary

static int

urlLimit The definition of "large" queries

Constructor Summary

HttpQuery(String serviceURL)
Create a execution object for a whole model GET

HttpQuery(URL url)
Create a execution object for a whole model GET

Method Summary

InputStream	exec() Execute the operation
HttpURLConnection	getConnection()
void	setAccept(String contentType) Set the content type (Accept header) for the results
void	setBasicAuthentication(String user, char[] password)
void	setForcePOST() Force the use of HTTP POST for the query operation
void	setTimeOut(int timeOut)
String	toString()
boolean	usesPOST() Return whether this request will go by GET or POST

Methods inherited from class com.hp.hpl.jena.sparql.engine.http.Params

addParam, addParam, containsParam, count, getValue, getValues, httpString, merge, names, pairs, remove

Methods inherited from class java.lang.Object

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

Field Detail

urlLimit

public static int urlLimit

The definition of "large" queries

Constructor Detail

HttpQuery

public HttpQuery(String serviceURL)

Create a execution object for a whole model GET

Parameters:

serviceURL - The model

HttpQuery

public HttpQuery(URL url)

Create a execution object for a whole model GET

Parameters:

url - The model

Method Detail

setTimeOut

public void setTimeOut(int timeOut)

getConnection

public HttpURLConnection getConnection()

setAccept

public void setAccept(String contentType)

Set the content type (Accept header) for the results

setBasicAuthentication

public void setBasicAuthentication(String user,
                                   char[] password)

usesPOST

public boolean usesPOST()

Return whether this request will go by GET or POST

Returns:

boolean

setForcePOST

public void setForcePOST()

Force the use of HTTP POST for the query operation

exec

public InputStream exec()
                 throws com.hp.hpl.jena.sparql.engine.http.QueryExceptionHTTP

Execute the operation

Returns:

Model The resulting model

Throws:

com.hp.hpl.jena.sparql.engine.http.QueryExceptionHTTP

toString

public String toString()

Overrides:

toString in class Object