org.eaglei.repository.format
Class SPARQLTextWriter

java.lang.Object
  org.eaglei.repository.format.SPARQLTextWriter

All Implemented Interfaces:

org.openrdf.query.resultio.TupleQueryResultWriter, org.openrdf.query.TupleQueryResultHandler

public class SPARQLTextWriter
extends java.lang.Object
implements org.openrdf.query.resultio.TupleQueryResultWriter

Tuple query results writer for plain text format. Very simple and stupid "TSV" (tab-separated values) format, not even checking for embedded tabs in values. Perhaps it would be better to have a more human-readable text format (e.g. columns aligned by whitespace, maybe borders) but this was quick and expedient.

Version:

$Id: $

Author:

lcs

Field Summary

static org.openrdf.query.resultio.TupleQueryResultFormat

FORMAT Constant FORMAT describes this format

Constructor Summary

SPARQLTextWriter(java.io.OutputStream out)
Default constructor for SPARQLTextWriter.

Method Summary

void	endQueryResult() Finish streaming result
org.openrdf.query.resultio.TupleQueryResultFormat	getTupleQueryResultFormat() Get description of format
void	handleSolution(org.openrdf.query.BindingSet bs) Add a solution to the stream
void	startQueryResult(java.util.List<java.lang.String> bindingNames) Start streaming result for given bindings

Methods inherited from class java.lang.Object

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

Field Detail

FORMAT

public static final org.openrdf.query.resultio.TupleQueryResultFormat FORMAT

Constant FORMAT describes this format

Constructor Detail

SPARQLTextWriter

public SPARQLTextWriter(java.io.OutputStream out)

Default constructor for SPARQLTextWriter. Assumes UTF-8 character set in output.

Parameters:

out - desintation stream, a OutputStream object.

Method Detail

getTupleQueryResultFormat

public org.openrdf.query.resultio.TupleQueryResultFormat getTupleQueryResultFormat()

Get description of format

Specified by:

getTupleQueryResultFormat in interface org.openrdf.query.resultio.TupleQueryResultWriter

Returns:

startQueryResult

public void startQueryResult(java.util.List<java.lang.String> bindingNames)
                      throws org.openrdf.query.TupleQueryResultHandlerException

Start streaming result for given bindings

Specified by:

startQueryResult in interface org.openrdf.query.TupleQueryResultHandler

Parameters:

bindingNames -

Throws:

org.openrdf.query.TupleQueryResultHandlerException

endQueryResult

public void endQueryResult()
                    throws org.openrdf.query.TupleQueryResultHandlerException

Finish streaming result

Specified by:

endQueryResult in interface org.openrdf.query.TupleQueryResultHandler

Throws:

org.openrdf.query.TupleQueryResultHandlerException

handleSolution

public void handleSolution(org.openrdf.query.BindingSet bs)
                    throws org.openrdf.query.TupleQueryResultHandlerException

Add a solution to the stream

Specified by:

handleSolution in interface org.openrdf.query.TupleQueryResultHandler

Parameters:

bs -

Throws:

org.openrdf.query.TupleQueryResultHandlerException