Package | Description |
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org.postgresql.core.v3 |
Class and Description |
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BatchedQuery
Purpose of this object is to support batched query re write behaviour.
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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()
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CopyOperationImpl |
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