Uses of Interface
org.postgresql.copy.CopyOperation

Packages that use CopyOperation

org.postgresql.copy
org.postgresql.core
org.postgresql.core.v2
org.postgresql.core.v3

Uses of CopyOperation in org.postgresql.copy

Subinterfaces of CopyOperation in org.postgresql.copy

interface	CopyIn Copy bulk data from client into a PostgreSQL table very fast.
interface	CopyOut

Classes in org.postgresql.copy that implement CopyOperation

class	PGCopyInputStream InputStream for reading from a PostgreSQL COPY TO STDOUT operation
class	PGCopyOutputStream OutputStream for buffered input into a PostgreSQL COPY FROM STDIN operation

Uses of CopyOperation in org.postgresql.core

Methods in org.postgresql.core that return CopyOperation

CopyOperation

QueryExecutor.startCopy(String sql, boolean suppressBegin) Issues a COPY FROM STDIN / COPY TO STDOUT statement and returns handler for associated operation.

Uses of CopyOperation in org.postgresql.core.v2

Methods in org.postgresql.core.v2 that return CopyOperation

CopyOperation

QueryExecutorImpl.startCopy(String sql, boolean suppressBegin)

Uses of CopyOperation in org.postgresql.core.v3

Classes in org.postgresql.core.v3 that implement CopyOperation

class	CopyInImpl Anticipated flow of a COPY FROM STDIN operation: CopyManager.copyIn() ->QueryExecutor.startCopy() - sends given query to server ->processCopyResults(): - receives CopyInResponse from Server - creates new CopyInImpl ->initCopy(): - receives copy metadata from server ->CopyInImpl.init() ->lock() connection for this operation - if query fails an exception is thrown - if query returns wrong CopyOperation, copyIn() cancels it before throwing exception <-return: new CopyInImpl holding lock on connection repeat CopyIn.writeToCopy() for all data ->CopyInImpl.writeToCopy() ->QueryExecutorImpl.writeToCopy() - sends given data ->processCopyResults() - parameterized not to block, just peek for new messages from server - on ErrorResponse, waits until protocol is restored and unlocks connection CopyIn.endCopy() ->CopyInImpl.endCopy() ->QueryExecutorImpl.endCopy() - sends CopyDone - processCopyResults() - on CommandComplete ->CopyOperationImpl.handleCommandComplete() - sets updatedRowCount when applicable - on ReadyForQuery unlock() connection for use by other operations <-return: CopyInImpl.getUpdatedRowCount()
class	CopyOperationImpl
class	CopyOutImpl Anticipated flow of a COPY TO STDOUT operation: CopyManager.copyOut() ->QueryExecutor.startCopy() - sends given query to server ->processCopyResults(): - receives CopyOutResponse from Server - creates new CopyOutImpl ->initCopy(): - receives copy metadata from server ->CopyOutImpl.init() ->lock() connection for this operation - if query fails an exception is thrown - if query returns wrong CopyOperation, copyOut() cancels it before throwing exception <-returned: new CopyOutImpl holding lock on connection repeat CopyOut.readFromCopy() until null ->CopyOutImpl.readFromCopy() ->QueryExecutorImpl.readFromCopy() ->processCopyResults() - on copydata row from server ->CopyOutImpl.handleCopydata() stores reference to byte array - on CopyDone, CommandComplete, ReadyForQuery ->unlock() connection for use by other operations <-returned: byte array of data received from server or null at end.

Methods in org.postgresql.core.v3 that return CopyOperation

CopyOperation

QueryExecutorImpl.startCopy(String sql, boolean suppressBegin) Sends given query to BE to start, initialize and lock connection for a CopyOperation.