Package org.postgresql.copy

Interface CopyOut

All Superinterfaces:

CopyOperation

All Known Subinterfaces:

CopyDual

All Known Implementing Classes:

CopyDualImpl, CopyOutImpl, PGCopyInputStream

public interface CopyOut
extends CopyOperation

Method Summary

Modifier and Type	Method	Description
byte @Nullable []	readFromCopy()	Blocks wait for a row of data to be received from server on an active copy operation.
byte @Nullable []	readFromCopy(boolean block)	Wait for a row of data to be received from server on an active copy operation.

Methods inherited from interface org.postgresql.copy.CopyOperation

cancelCopy, getFieldCount, getFieldFormat, getFormat, getHandledRowCount, isActive

Method Details

readFromCopy

byte @Nullable [] readFromCopy()
                        throws SQLException

Blocks wait for a row of data to be received from server on an active copy operation.

Returns:

byte array received from server, null if server complete copy operation

Throws:

SQLException - if something goes wrong for example socket timeout

readFromCopy

byte @Nullable [] readFromCopy(boolean block)
                        throws SQLException

Wait for a row of data to be received from server on an active copy operation.

Parameters:

block - true if need wait data from server otherwise false and will read pending message from server

Returns:

byte array received from server, if pending message from server absent and use no blocking mode return null

Throws:

SQLException - if something goes wrong for example socket timeout