Fennel: BTreeReadExecStream Class Reference (original) (raw)

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BTreeReadExecStream is an abstract base class for ExecStream implementations which project a stream of tuples via a BTreeReader. More...

#include <[BTreeReadExecStream.h](BTreeReadExecStream%5F8h-source.html)>

Inheritance diagram for BTreeReadExecStream:

List of all members.

Detailed Description

BTreeReadExecStream is an abstract base class for ExecStream implementations which project a stream of tuples via a BTreeReader.

Version:

Id

//open/dev/fennel/ftrs/BTreeReadExecStream.h#10

Definition at line 55 of file BTreeReadExecStream.h.

Member Function Documentation

Opens this stream, acquiring any resources needed in order to be able to fetch data.

A precondition is that input streams must already be opened. A stream can be closed and reopened.

Parameters:

Reimplemented from BTreeExecStream.

Reimplemented in BTreePrefetchSearchExecStream, BTreeScanExecStream, and BTreeSearchExecStream.

Definition at line 51 of file BTreeReadExecStream.cpp.

References TupleProjectionAccessor::bind(), BTreeExecStream::newReader(), BTreeExecStream::open(), outputProj, pReader, and projAccessor.

Referenced by BTreeSearchExecStream::open(), and BTreeScanExecStream::open().

| void BTreeReadExecStream::closeImpl | ( | | ) | [virtual] | | ----------------------------------- | - | | - | ----------- |

| void BTreeExecStream::endSearch | ( | | ) | [protected, virtual, inherited] | | ------------------------------- | - | | - | --------------------------------- |

Definition at line 30 of file BTreeExecStream.cpp.

References BTreeExecStream::copyParamsToDescriptor(), ExecStreamParams::pCacheAccessor, SingleOutputExecStream::prepare(), BTreeParams::pRootMap, BTreeExecStream::pRootMap, BTreeParams::rootPageIdParamId, BTreeExecStream::rootPageIdParamId, ExecStreamParams::scratchAccessor, BTreeExecStream::scratchAccessor, and BTreeExecStream::treeDescriptor.

Referenced by LcsClusterAppendExecStream::prepare(), LbmGeneratorExecStream::prepare(), prepare(), and BTreeInsertExecStream::prepare().

Definition at line 48 of file SingleOutputExecStream.cpp.

References SingleOutputExecStream::getOutputBufProvision(), SingleOutputExecStreamParams::outputTupleDesc, SingleOutputExecStreamParams::outputTupleFormat, SingleOutputExecStream::pOutAccessor, and ExecStream::prepare().

Referenced by BTreeExecStream::prepare(), FlatFileExecStreamImpl::prepare(), ValuesExecStream::prepare(), MockResourceExecStream::prepare(), MockProducerExecStream::prepare(), ConfluenceExecStream::prepare(), and ConduitExecStream::prepare().

Prepares this stream for execution.

A precondition is that input streams must already be defined and prepared. As an effect of this call, the tuple shape should be defined for all output buffers and remain unchanged for the lifetime of the stream. This method is only ever called once, before the first open. Although this method is virtual, derived classes may choose to define an overloaded version instead with a specialized covariant parameter class.

Parameters:

Definition at line 84 of file ExecStream.cpp.

References ExecStreamGraph::getDynamicParamManager(), SegmentAccessor::pCacheAccessor, ExecStreamParams::pCacheAccessor, ExecStream::pDynamicParamManager, ExecStream::pGraph, ExecStream::pQuotaAccessor, ExecStream::pScratchQuotaAccessor, and ExecStreamParams::scratchAccessor.

Referenced by JavaTransformExecStream::prepare(), SingleOutputExecStream::prepare(), and SingleInputExecStream::prepare().

Definition at line 93 of file BTreeExecStream.cpp.

References BTreeParams::keyProj, BTreeDescriptor::keyProjection, BTreeParams::pageOwnerId, BTreeDescriptor::pageOwnerId, SegmentAccessor::pCacheAccessor, BTreeParams::pSegment, SegmentAccessor::pSegment, BTreeParams::rootPageId, BTreeDescriptor::rootPageId, BTreeDescriptor::segmentAccessor, BTreeParams::segmentId, BTreeDescriptor::segmentId, BTreeExecStream::treeDescriptor, BTreeParams::tupleDesc, and BTreeDescriptor::tupleDescriptor.

Referenced by BTreeExecStream::newWriter(), LbmSplicerExecStream::prepare(), and BTreeExecStream::prepare().

Initializes the buffer accessors for inputs to this stream.

This method is only ever called once, before prepare.

Parameters:

Implements ExecStream.

Reimplemented in ConduitExecStream, and ConfluenceExecStream.

Definition at line 35 of file SingleOutputExecStream.cpp.

00037 { 00038 assert(inAccessors.size() == 0); 00039 }

| bool ExecStream::canEarlyClose | ( | | ) | [virtual, inherited] | | ------------------------------ | - | | - | ---------------------- |

| ExecStreamId ExecStream::getStreamId | ( | | ) | const [inline, inherited] | | -------------------------------------------------------------------------------------------------- | - | | - | --------------------------- |

Returns:

the identifier for this stream within containing graph

Definition at line 288 of file ExecStream.h.

References ExecStream::id.

Referenced by ExternalSortExecStreamImpl::execute(), SegBufferWriterExecStream::execute(), SegBufferExecStream::execute(), CorrelationJoinExecStream::execute(), BarrierExecStream::execute(), Java_net_sf_farrago_fennel_FennelStorage_tupleStreamTransformFetch(), JavaTransformExecStream::open(), SingleInputExecStream::open(), ConfluenceExecStream::open(), CartesianJoinExecStream::prepare(), ParallelExecStreamScheduler::readStream(), DfsTreeExecStreamScheduler::readStream(), LbmMinusExecStream::restartSubtrahends(), ExecStreamScheduler::tracePostExecution(), ExecStreamScheduler::tracePreExecution(), ExecStreamScheduler::traceStreamBuffers(), and ParallelExecStreamScheduler::tryExecuteTask().

00289 { 00290 return id; 00291 }

Determines resource requirements for this stream.

Default implementation declares zero resource requirements.

Parameters:

Reimplemented in MockResourceExecStream, BTreePrefetchSearchExecStream, LhxAggExecStream, LhxJoinExecStream, LbmGeneratorExecStream, LbmUnionExecStream, and ExternalSortExecStreamImpl.

Definition at line 93 of file ExecStream.cpp.

References EXEC_RESOURCE_ACCURATE.

Referenced by ExternalSortExecStreamImpl::getResourceRequirements(), LcsRowScanBaseExecStream::getResourceRequirements(), LcsClusterAppendExecStream::getResourceRequirements(), LbmUnionExecStream::getResourceRequirements(), LbmSplicerExecStream::getResourceRequirements(), LbmGeneratorExecStream::getResourceRequirements(), LbmChopperExecStream::getResourceRequirements(), LhxJoinExecStream::getResourceRequirements(), LhxAggExecStream::getResourceRequirements(), FtrsTableWriterExecStream::getResourceRequirements(), getResourceRequirements(), BTreeInsertExecStream::getResourceRequirements(), FlatFileExecStreamImpl::getResourceRequirements(), SegBufferWriterExecStream::getResourceRequirements(), SegBufferReaderExecStream::getResourceRequirements(), SegBufferExecStream::getResourceRequirements(), ScratchBufferExecStream::getResourceRequirements(), and DoubleBufferExecStream::getResourceRequirements().

Sets current resource allocation for this stream.

If called while the stream is open, this indicates a request for the stream to dynamically adjust its memory usage. If the stream is incapable of honoring the request, it should update quantity with the actual amounts still in use.

Parameters:

Reimplemented in MockResourceExecStream, BTreePrefetchSearchExecStream, LhxAggExecStream, LhxJoinExecStream, LbmGeneratorExecStream, LbmUnionExecStream, and ExternalSortExecStreamImpl.

Definition at line 111 of file ExecStream.cpp.

References ExecStreamResourceQuantity::nCachePages, ExecStream::pQuotaAccessor, ExecStream::pScratchQuotaAccessor, and ExecStream::resourceAllocation.

Referenced by ExternalSortExecStreamImpl::setResourceAllocation(), LbmUnionExecStream::setResourceAllocation(), LbmGeneratorExecStream::setResourceAllocation(), LhxJoinExecStream::setResourceAllocation(), LhxAggExecStream::setResourceAllocation(), and BTreePrefetchSearchExecStream::setResourceAllocation().

| void ExecStream::setName | ( | std::string const & | | ) | [virtual, inherited] | | ------------------------ | - | ------------------- | | - | ---------------------- |

| std::string const & ExecStream::getName | ( | | ) | const [virtual, inherited] | | --------------------------------------- | - | | - | ---------------------------- |

Executes this stream.

Parameters:

Returns:

code indicating reason execution ceased

Implemented in CalcExecStream, BarrierExecStream, BernoulliSamplingExecStream, CartesianJoinExecStream, CollectExecStream, CopyExecStream, CorrelationJoinExecStream, DoubleBufferExecStream, MergeExecStream, MockConsumerExecStream, MockProducerExecStream, MockResourceExecStream, ReshapeExecStream, ScratchBufferExecStream, SegBufferExecStream, SegBufferReaderExecStream, SegBufferWriterExecStream, SortedAggExecStream, SplitterExecStream, UncollectExecStream, ValuesExecStream, JavaSinkExecStream, JavaTransformExecStream, FlatFileExecStreamImpl, BTreeInsertExecStream, BTreePrefetchSearchExecStream, BTreeScanExecStream, BTreeSearchExecStream, BTreeSearchUniqueExecStream, BTreeSortExecStream, FtrsTableWriterExecStream, LhxAggExecStream, LhxJoinExecStream, LbmChopperExecStream, LbmGeneratorExecStream, LbmIntersectExecStream, LbmMinusExecStream, LbmNormalizerExecStream, LbmSplicerExecStream, LbmUnionExecStream, LcsClusterAppendExecStream, LcsRowScanExecStream, and ExternalSortExecStreamImpl.

Referenced by ExecStreamScheduler::executeStream().

| bool ExecStream::mayBlock | ( | | ) | const [virtual, inherited] | | ------------------------- | - | | - | ---------------------------- |

Queries whether this stream's implementation may block when execute() is called.

For accurate scheduling, non-blocking implementations are preferred; the scheduler must be aware of the potential for blocking so that it can allocate extra threads accordingly.

Returns:

whether stream may block; default is false

Definition at line 167 of file ExecStream.cpp.

00168 { 00169 return false; 00170 }

| void ExecStream::checkAbort | ( | | ) | const [virtual, inherited] | | --------------------------- | - | | - | ---------------------------- |

| bool ClosableObject::isClosed | ( | | ) | const [inline, inherited] | | ----------------------------- | - | | - | --------------------------- |

Returns:

whether the object has been closed

Definition at line 58 of file ClosableObject.h.

| void ClosableObject::close | ( | | ) | [inherited] | | -------------------------- | - | | - | ------------- |

Closes this object, releasing any unallocated resources.

Reimplemented in CollectExecStream, CorrelationJoinExecStream, LcsClusterAppendExecStream, and LcsClusterReplaceExecStream.

Definition at line 39 of file ClosableObject.cpp.

References ClosableObject::closeImpl(), and ClosableObject::needsClose.

Referenced by CacheImpl< PageT, VictimPolicyT >::allocatePages(), LcsRowScanBaseExecStream::closeImpl(), ExecStreamGraphImpl::closeImpl(), FlatFileBuffer::open(), ClosableObjectDestructor::operator()(), and Segment::~Segment().

| bool TraceSource::isTracing | ( | | ) | const [inline, inherited] | | --------------------------- | - | | - | --------------------------- |

| TraceTarget& TraceSource::getTraceTarget | ( | | ) | const [inline, inherited] | | ----------------------------------------------------------------- | - | | - | --------------------------- |

| std::string TraceSource::getTraceSourceName | ( | | ) | const [inline, inherited] | | ------------------------------------------- | - | | - | --------------------------- |

Sets the name of this source.

Useful to construct dynamic names for fine-grained filtering.

Definition at line 136 of file TraceSource.h.

00137 { 00138 name = n; 00139 }

| TraceLevel TraceSource::getMinimumTraceLevel | ( | | ) | const [inline, inherited] | | ------------------------------------------------------------------------------------------------------ | - | | - | --------------------------- |

| void TraceSource::disableTracing | ( | | ) | [inherited] | | -------------------------------- | - | | - | ------------- |

| bool ErrorSource::hasTarget | ( | | ) | const [inline, inherited] | | --------------------------- | - | | - | --------------------------- |

| ErrorTarget& ErrorSource::getErrorTarget | ( | | ) | const [inline, inherited] | | ----------------------------------------------------------------- | - | | - | --------------------------- |

Returns:

the SharedErrorTarget for this source

Definition at line 129 of file ErrorSource.h.

| std::string ErrorSource::getErrorSourceName | ( | | ) | const [inline, inherited] | | ------------------------------------------- | - | | - | --------------------------- |

Gets the name of this source.

Useful to construct nested names for subcomponents that are also ErrorSources.

Returns:

the name

Definition at line 139 of file ErrorSource.h.

00140 { 00141 return name; 00142 }

Sets the name of this source.

Useful to construct dynamic names for fine-grained filtering.

Definition at line 148 of file ErrorSource.h.

00149 { 00150 name = n; 00151 }

| void ErrorSource::disableTarget | ( | | ) | [inherited] | | ------------------------------- | - | | - | ------------- |

Member Data Documentation

Definition at line 113 of file BTreeExecStream.h.

Referenced by BTreeInsertExecStream::buildTree(), BTreeExecStream::closeImpl(), BTreeExecStream::copyParamsToDescriptor(), LcsClusterReplaceExecStream::getTupleForLoad(), LcsClusterAppendExecStream::initLoad(), LcsClusterReplaceExecStream::initTupleLoadParams(), BTreePrefetchSearchExecStream::innerSearchLoop(), BTreePrefetchSearchExecStream::newReader(), BTreeExecStream::newReader(), BTreeExecStream::newWriter(), LcsClusterReplaceExecStream::open(), BTreeSearchExecStream::open(), BTreePrefetchSearchExecStream::open(), BTreeInsertExecStream::open(), BTreeExecStream::open(), LcsClusterReplaceExecStream::prepare(), LcsClusterAppendExecStream::prepare(), LbmSearchExecStream::prepare(), LbmGeneratorExecStream::prepare(), BTreeSearchExecStream::prepare(), BTreeInsertExecStream::prepare(), BTreeExecStream::prepare(), and BTreeInsertExecStream::truncateTree().

Definition at line 56 of file SingleOutputExecStream.h.

Referenced by LcsClusterAppendExecStream::compress(), ExternalSortExecStreamImpl::execute(), LcsRowScanExecStream::execute(), LbmUnionExecStream::execute(), LbmNormalizerExecStream::execute(), LbmGeneratorExecStream::execute(), LbmChopperExecStream::execute(), LhxJoinExecStream::execute(), LhxAggExecStream::execute(), FtrsTableWriterExecStream::execute(), BTreeSortExecStream::execute(), BTreeSearchUniqueExecStream::execute(), BTreeScanExecStream::execute(), BTreePrefetchSearchExecStream::execute(), BTreeInsertExecStream::execute(), FlatFileExecStreamImpl::execute(), ValuesExecStream::execute(), UncollectExecStream::execute(), SortedAggExecStream::execute(), SegBufferReaderExecStream::execute(), ScratchBufferExecStream::execute(), ReshapeExecStream::execute(), MockResourceExecStream::execute(), MockProducerExecStream::execute(), MergeExecStream::execute(), DoubleBufferExecStream::execute(), CorrelationJoinExecStream::execute(), CopyExecStream::execute(), CollectExecStream::execute(), CartesianJoinExecStream::execute(), BernoulliSamplingExecStream::execute(), BarrierExecStream::execute(), CalcExecStream::execute(), LbmGeneratorExecStream::flushEntry(), MockProducerExecStream::getProducedRowCount(), ExternalSortExecStreamImpl::getResourceRequirements(), BTreeSearchExecStream::innerFetchLoop(), LbmUnionExecStream::open(), LbmChopperExecStream::open(), LbmBitOpExecStream::open(), SingleOutputExecStream::open(), SegBufferReaderExecStream::open(), SegBufferExecStream::open(), ScratchBufferExecStream::open(), DoubleBufferExecStream::open(), CollectExecStream::open(), SegBufferExecStream::openBufferForRead(), ConduitExecStream::precheckConduitBuffers(), LcsRowScanExecStream::prepare(), LcsRowScanBaseExecStream::prepare(), LcsClusterAppendExecStream::prepare(), LbmUnionExecStream::prepare(), LbmGeneratorExecStream::prepare(), LhxJoinExecStream::prepare(), LhxAggExecStream::prepare(), FtrsTableWriterExecStream::prepare(), FlatFileExecStreamImpl::prepare(), UncollectExecStream::prepare(), SortedAggExecStream::prepare(), SingleOutputExecStream::prepare(), ReshapeExecStream::prepare(), MockResourceExecStream::prepare(), MockProducerExecStream::prepare(), MergeExecStream::prepare(), CorrelationJoinExecStream::prepare(), ConduitExecStream::prepare(), CollectExecStream::prepare(), CartesianJoinExecStream::prepare(), BernoulliSamplingExecStream::prepare(), BarrierExecStream::prepare(), CalcExecStream::prepare(), SortedAggExecStream::produce(), LbmBitOpExecStream::producePendingOutput(), LbmUnionExecStream::produceTuple(), LbmNormalizerExecStream::produceTuple(), LbmMinusExecStream::produceTuple(), LbmChopperExecStream::produceTuple(), LbmBitOpExecStream::produceTuple(), LbmBitOpExecStream::readInput(), LbmMinusExecStream::readMinuendInput(), and SingleOutputExecStream::setOutputBufAccessors().

Dataflow graph containing this stream.

Note that we don't use a weak_ptr for this because it needs to be accessed frequently during execution, and the extra locking overhead would be frivolous.

Definition at line 68 of file ExecStream.h.

Referenced by ExecStream::checkAbort(), ExecStream::ExecStream(), CorrelationJoinExecStream::execute(), ExecStream::getGraph(), JavaTransformExecStream::open(), SingleInputExecStream::open(), MergeExecStream::open(), ExecStream::open(), CorrelationJoinExecStream::open(), ConfluenceExecStream::open(), ExecStream::prepare(), CartesianJoinExecStream::prepare(), and LbmMinusExecStream::restartSubtrahends().

The dynamic parameter manager available to this stream.

(Obtained at prepare() time. Keep a shared pointer in case the stream is reassigned to another graph for execution; cf ExecStreamGraph::mergeFrom())

Definition at line 85 of file ExecStream.h.

Referenced by CorrelationJoinExecStream::close(), SegBufferReaderExecStream::closeImpl(), LbmUnionExecStream::execute(), LbmSplicerExecStream::execute(), LbmGeneratorExecStream::execute(), LbmChopperExecStream::execute(), CorrelationJoinExecStream::execute(), BarrierExecStream::execute(), LcsClusterReplaceExecStream::open(), LbmUnionExecStream::open(), LbmSplicerExecStream::open(), LbmGeneratorExecStream::open(), LbmBitOpExecStream::open(), BTreeSearchExecStream::open(), BTreeInsertExecStream::open(), SegBufferWriterExecStream::open(), SegBufferReaderExecStream::open(), NestedLoopJoinExecStream::open(), CorrelationJoinExecStream::open(), ExecStream::prepare(), CalcExecStream::prepare(), NestedLoopJoinExecStream::processLeftInput(), LbmSearchExecStream::reachedTupleLimit(), ReshapeExecStream::readDynamicParams(), SegBufferWriterExecStream::readReaderRefCount(), BTreeSearchExecStream::readSearchKey(), BTreeSearchExecStream::readUpperBoundKey(), LbmSearchExecStream::setAdditionalKeys(), and LbmBitOpExecStream::writeStartRidParamValue().

The documentation for this class was generated from the following files:

• /home/pub/open/dev/fennel/ftrs/BTreeReadExecStream.h
• /home/pub/open/dev/fennel/ftrs/BTreeReadExecStream.cpp

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