Package net.spy.memcached.protocol.binary

Class TapOperationImpl

java.lang.Object

net.spy.memcached.compat.SpyObject

net.spy.memcached.protocol.BaseOperationImpl

net.spy.memcached.protocol.binary.OperationImpl

net.spy.memcached.protocol.binary.TapOperationImpl

All Implemented Interfaces:

Operation, TapOperation

Direct Known Subclasses:

TapAckOperationImpl, TapBackfillOperationImpl, TapCustomOperationImpl, TapDumpOperationImpl

public abstract class TapOperationImpl
extends OperationImpl
implements TapOperation

Abstract implementation of a tap operation.

Nested Class Summary

Nested classes/interfaces inherited from interface net.spy.memcached.ops.TapOperation

TapOperation.Callback

Field Summary

Fields inherited from class net.spy.memcached.protocol.binary.OperationImpl

DUMMY_OPCODE, EMPTY_BYTES, ERR_2BIG, ERR_BUSY, ERR_DELTA_BADVAL, ERR_EXISTS, ERR_INTERNAL, ERR_INVAL, ERR_NO_MEM, ERR_NOT_FOUND, ERR_NOT_MY_VBUCKET, ERR_NOT_STORED, ERR_NOT_SUPPORTED, ERR_TEMP_FAIL, ERR_UNKNOWN_COMMAND, errorCode, keyLen, MIN_RECV_PACKET, opaque, REQ_MAGIC, RES_MAGIC, responseCas, responseCmd, responseOpaque, STATUS_OK, SUCCESS, vbucket

Fields inherited from class net.spy.memcached.protocol.BaseOperationImpl

callback, CANCELLED, notMyVbucketNodes, TIMED_OUT

Constructor Summary

Constructors

Modifier	Constructor	Description
protected	TapOperationImpl(OperationCallback cb)

Method Summary

Modifier and Type	Method	Description
abstract void	initialize()	Initialize this operation.
void	readFromBuffer(ByteBuffer data)	Read from the incoming ByteBuffer.

Methods inherited from class net.spy.memcached.protocol.binary.OperationImpl

decodePayload, finishedPayload, getErrorMsg, getStatusForErrorCode, opaqueIsValid, prepareBuffer, resetInput, toString

Methods inherited from class net.spy.memcached.protocol.BaseOperationImpl

addClone, cancel, getBuffer, getCallback, getCloneCount, getException, getHandlingNode, getState, getWriteCompleteTimestamp, handleError, handleRead, hasErrored, isCancelled, isTimedOut, isTimedOut, isTimedOutUnsent, setBuffer, setCallback, setCloneCount, setHandlingNode, timeOut, transitionState, wasCancelled, writeComplete, writing

Methods inherited from class net.spy.memcached.compat.SpyObject

getLogger

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Methods inherited from interface net.spy.memcached.ops.Operation

addClone, cancel, getBuffer, getCallback, getCloneCount, getErrorMsg, getException, getHandlingNode, getState, getWriteCompleteTimestamp, handleRead, hasErrored, isCancelled, isTimedOut, isTimedOut, isTimedOutUnsent, setCloneCount, setHandlingNode, timeOut, writeComplete, writing

Methods inherited from interface net.spy.memcached.ops.TapOperation

streamClosed

Constructor Details

TapOperationImpl

protected TapOperationImpl(OperationCallback cb)

Method Details

initialize

public abstract void initialize()

Description copied from interface: Operation

Initialize this operation. This is used to prepare output byte buffers and stuff.

Specified by:

initialize in interface Operation

Specified by:

initialize in class BaseOperationImpl

readFromBuffer

public void readFromBuffer(ByteBuffer data)
                    throws IOException

Description copied from class: OperationImpl

Read from the incoming ByteBuffer. Reading from the buffer is done in stages, depending on how much data can be read at once. First, the header is read and then parsed (24 bytes, indicated by OperationImpl.MIN_RECV_PACKET). Then, the payload is read (if one is available for this operation and can be loaded fully).

Specified by:

readFromBuffer in interface Operation

Overrides:

readFromBuffer in class OperationImpl

Parameters:

data - the buffer to read from.

Throws:

IOException - if an error happened during parsing/reading.