org.apache.hawq.pxf.api

Interface WriteAccessor

All Known Implementing Classes:

LineBreakAccessor, SequenceFileAccessor

public interface WriteAccessor

Interface for writing data into a data store (e.g. a sequence file on HDFS).

Method Summary

Modifier and Type	Method and Description
void	closeForWrite() Closes the resource for write.
boolean	openForWrite() Opens the resource for write.
boolean	writeNextObject(OneRow onerow) Writes the next object.

Method Detail

openForWrite

boolean openForWrite()
              throws java.lang.Exception

Opens the resource for write.

Returns:

true if the resource is successfully opened

Throws:

java.lang.Exception - if opening the resource failed

writeNextObject

boolean writeNextObject(OneRow onerow)
                 throws java.lang.Exception

Writes the next object.

Parameters:

onerow - the object to be written

Returns:

true if the write succeeded

Throws:

java.lang.Exception - writing to the resource failed

closeForWrite

void closeForWrite()
            throws java.lang.Exception

Closes the resource for write.

Throws:

java.lang.Exception - if closing the resource failed