java.lang.Object
org.firebirdsql.gds.ng.AbstractFbBlob
org.firebirdsql.gds.ng.wire.AbstractFbWireBlob
- All Implemented Interfaces:
AutoCloseable,FbBlob,DatabaseListener,ExceptionListenable,TransactionListener,FbWireBlob
- Direct Known Subclasses:
AbstractFbWireInputBlob,AbstractFbWireOutputBlob
- Since:
- 3.0
- Author:
- Mark Rotteveel
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Nested Class Summary
Nested ClassesModifier and TypeClassDescriptionprotected static enumOperation codes to open an input or output blob.Nested classes/interfaces inherited from interface org.firebirdsql.gds.ng.FbBlob
FbBlob.SeekMode -
Field Summary
Fields inherited from class org.firebirdsql.gds.ng.AbstractFbBlob
exceptionListenerDispatcherFields inherited from interface org.firebirdsql.gds.ng.FbBlob
NO_BLOB_ID -
Constructor Summary
ConstructorsModifierConstructorDescriptionprotectedAbstractFbWireBlob(FbWireDatabase database, FbWireTransaction transaction, BlobParameterBuffer blobParameterBuffer) -
Method Summary
Modifier and TypeMethodDescriptionprotected voidInternal implementation ofAbstractFbBlob.cancel().protected voidInternal implementation ofAbstractFbBlob.close().byte[]getBlobInfo(byte[] requestItems, int bufferLength) Request blob info.final intprotected final XdrInputStreamgetXdrIn()Gets the XdrInputStream.protected final XdrOutputStreamGets the XdrOutputStream.protected voidreleaseBlob(int releaseOperation) Release this blob with the specified operation.protected voidRelease Java resources held.protected final voidsendOpen(AbstractFbWireBlob.BlobOpenOperation openOperation) protected final voidsetHandle(int blobHandle) Methods inherited from class org.firebirdsql.gds.ng.AbstractFbBlob
addExceptionListener, cancel, checkBlobClosed, checkBlobOpen, checkDatabaseAttached, checkTransactionActive, clearDatabase, clearTransaction, close, createBlobLengthProcessor, detached, detaching, get, get, get, getBlobInfo, getBlobParameterBuffer, getMaximumSegmentSize, getTransaction, isEndingTransaction, isEof, isOpen, length, putSegment, removeExceptionListener, resetEof, setEof, setOpen, transactionStateChanged, validateBufferLength, warningReceived, withLockMethods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, waitMethods inherited from interface org.firebirdsql.gds.ng.listeners.ExceptionListenable
addExceptionListener, removeExceptionListenerMethods inherited from interface org.firebirdsql.gds.ng.FbBlob
cancel, close, get, get, getBlobId, getBlobInfo, getMaximumSegmentSize, getSegment, isEof, isOpen, isOutput, length, open, put, putSegment, seek
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Constructor Details
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AbstractFbWireBlob
protected AbstractFbWireBlob(FbWireDatabase database, FbWireTransaction transaction, BlobParameterBuffer blobParameterBuffer)
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Method Details
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getDatabase
- Specified by:
getDatabasein interfaceFbBlob- Overrides:
getDatabasein classAbstractFbBlob- Returns:
- The database connection that created this blob
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getHandle
public final int getHandle() -
setHandle
protected final void setHandle(int blobHandle) - Parameters:
blobHandle- The Firebird blob handle identifier
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releaseBlob
Release this blob with the specified operation.Implementations should only do the operation and not perform any further clean up or checks on attached database and active transaction, as those checks and clean up should be done by the caller.
- Parameters:
releaseOperation- EitherWireProtocolConstants.op_close_bloborWireProtocolConstants.op_cancel_blob- Throws:
SQLException- For database communication errors.
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sendOpen
protected final void sendOpen(AbstractFbWireBlob.BlobOpenOperation openOperation) throws SQLException - Throws:
SQLException
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closeImpl
Description copied from class:AbstractFbBlobInternal implementation ofAbstractFbBlob.close(). The implementation does not need to check for attached database and active transaction, nor does it need to mark this blob as closed.- Specified by:
closeImplin classAbstractFbBlob- Throws:
SQLException
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cancelImpl
Description copied from class:AbstractFbBlobInternal implementation ofAbstractFbBlob.cancel(). The implementation does not need to check for attached database and active transaction, nor does it need to mark this blob as closed.- Specified by:
cancelImplin classAbstractFbBlob- Throws:
SQLException
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releaseResources
protected void releaseResources()Description copied from class:AbstractFbBlobRelease Java resources held. This should not communicate with the Firebird server.- Specified by:
releaseResourcesin classAbstractFbBlob
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getBlobInfo
Description copied from interface:FbBlobRequest blob info.- Specified by:
getBlobInfoin interfaceFbBlob- Parameters:
requestItems- Array of info items to requestbufferLength- Response buffer length to use- Returns:
- Response buffer
- Throws:
SQLException
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getXdrIn
Gets the XdrInputStream.- Returns:
- instance of XdrInputStream
- Throws:
SQLException- if no connection is opened or when exceptions occur retrieving the InputStream- Since:
- 6
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getXdrOut
Gets the XdrOutputStream.- Returns:
- instance of XdrOutputStream
- Throws:
SQLException- if no connection is opened or when exceptions occur retrieving the OutputStream- Since:
- 6
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