org.apache.druid.sql.http

Class ObjectWriter

java.lang.Object

org.apache.druid.sql.http.ObjectWriter

public class ObjectWriter
extends Object

Constructor Summary

Constructors

Constructor and Description
ObjectWriter(OutputStream outputStream, com.fasterxml.jackson.databind.ObjectMapper jsonMapper)

Method Summary

Modifier and Type	Method and Description
void	close()
void	writeHeader(List<String> columnNames)
void	writeResponseEnd() End of the response.
void	writeResponseStart() Start of the response, called once per writer.
void	writeRowEnd() End of each result row.
void	writeRowField(String name, Object value) Field within a row.
void	writeRowStart() Start of each result row.

Methods inherited from class java.lang.Object

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

Constructor Detail

ObjectWriter

public ObjectWriter(OutputStream outputStream,
                    com.fasterxml.jackson.databind.ObjectMapper jsonMapper)
             throws IOException

Throws:

IOException

Method Detail

writeResponseStart

public void writeResponseStart()
                        throws IOException

Start of the response, called once per writer.

Throws:

IOException

writeResponseEnd

public void writeResponseEnd()
                      throws IOException

End of the response. Must allow the user to know that they have read all data successfully.

Throws:

IOException

writeHeader

public void writeHeader(List<String> columnNames)
                 throws IOException

Throws:

IOException

writeRowStart

public void writeRowStart()
                   throws IOException

Start of each result row.

Throws:

IOException

writeRowField

public void writeRowField(String name,
                          @Nullable
                          Object value)
                   throws IOException

Field within a row.

Throws:

IOException

writeRowEnd

public void writeRowEnd()
                 throws IOException

End of each result row.

Throws:

IOException

close

public void close()
           throws IOException

Throws:

IOException