A platform for high-performance distributed tool and library development written in C++. It can be deployed in two different cluster modes: standalone or distributed. API for v0.5.0, released on June 13, 2018.
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pdb::SelectionComp< OutputClass, InputClass > Class Template Referenceabstract

#include <SelectionComp.h>

+ Inheritance diagram for pdb::SelectionComp< OutputClass, InputClass >:
+ Collaboration diagram for pdb::SelectionComp< OutputClass, InputClass >:

Public Member Functions

virtual Lambda< bool > getSelection (Handle< InputClass > checkMe)=0
 
virtual Lambda< Handle
< OutputClass > > 		getProjection (Handle< InputClass > checkMe)=0
 
- Public Member Functions inherited from pdb::SelectionCompBase< OutputClass, InputClass >
void extractLambdas (std::map< std::string, GenericLambdaObjectPtr > &returnVal) override
 
std::string getComputationType () override
 
ComputationTypeID getComputationTypeID () override
 
std::string getIthInputType (int i) override
 
int getNumInputs () override
 
std::string getOutputType () override
 
std::string toTCAPString (std::vector< InputTupleSetSpecifier > &inputTupleSets, int computationLabel, std::string &outputTupleSetName, std::vector< std::string > &outputColumnNames, std::string &addedOutputColumnName) override
 
std::string toTCAPString (std::string inputTupleSetName, std::vector< std::string > &inputColumnNames, std::vector< std::string > &inputColumnsToApply, std::vector< std::string > &childrenLambdaNames, int computationLabel, std::string &outputTupleSetName, std::vector< std::string > &outputColumnNames, std::string &addedOutputColumnName, std::string &myLambdaName)
 
void setOutput (std::string dbName, std::string setName) override
 
void setBatchSize (int batchSize) override
 
std::string getDatabaseName () override
 
std::string getSetName () override
 
ComputeSourcePtr getComputeSource (TupleSpec &outputScheme, ComputePlan &plan) override
 
ComputeSinkPtr getComputeSink (TupleSpec &consumeMe, TupleSpec &projection, ComputePlan &plan) override
 
bool needsMaterializeOutput () override
 
Handle< ScanUserSet
< OutputClass > > & 		getOutputSetScanner ()
 
- Public Member Functions inherited from pdb::Computation
virtual ComputeSinkPtr getComputeSink (TupleSpec &consumeMe, TupleSpec &whichAttsToOpOn, TupleSpec &projection, ComputePlan &plan)
 
virtual SinkMergerPtr getSinkMerger (TupleSpec &consumeMe, TupleSpec &projection, ComputePlan &plan)
 
virtual SinkMergerPtr getSinkMerger (TupleSpec &consumeMe, TupleSpec &whichAttsToOpOn, TupleSpec &projection, ComputePlan &plan)
 
virtual SinkShufflerPtr getSinkShuffler (TupleSpec &consumeMe, TupleSpec &projection, ComputePlan &plan)
 JiaNote: add below interface for shuffling multiple join map sinks for hash partitioned join. More...
 
virtual SinkShufflerPtr getSinkShuffler (TupleSpec &consumeMe, TupleSpec &whichAttsToOpOn, TupleSpec &projection, ComputePlan &plan)
 
bool hasInput ()
 
Handle< Computation > & getIthInput (int i) const
 
int getNumConsumers ()
 
void setNumConsumers (int numConsumers)
 
bool setInput (Handle< Computation > toMe)
 
bool setInput (int whichSlot, Handle< Computation > toMe)
 
bool isTraversed ()
 
void setTraversed (bool traversed)
 
std::string getOutputTupleSetName ()
 
void setOutputTupleSetName (std::string outputTupleSetName)
 
std::string getOutputColumnToApply ()
 
void setOutputColumnToApply (std::string outputColumnToApply)
 
virtual bool isUsingCombiner ()
 
virtual void setUsingCombiner (bool useCombinerOrNot)
 
void setAllocatorPolicy (AllocatorPolicy myPolicy)
 
void setObjectPolicy (ObjectPolicy myPolicy)
 
AllocatorPolicy getAllocatorPolicy ()
 
ObjectPolicy getObjectPolicy ()
 
virtual void setCollectAsMap (bool collectAsMapOrNot)
 
virtual bool isCollectAsMap ()
 
virtual int getNumNodesToCollect ()
 
virtual void setNumNodesToCollect (int numNodesToCollect)
 
- Public Member Functions inherited from pdb::Object
void setVTablePtr (void *setToMe)
 
void * getVTablePtr ()
 
virtual void setUpAndCopyFrom (void *target, void *source) const
 
virtual void deleteObject (void *deleteMe)
 
virtual size_t getSize (void *ofMe)
 

Additional Inherited Members

- Static Public Member Functions inherited from pdb::Object
static void * operator new (size_t sz, const std::nothrow_t &tag)
 
static void * operator new (size_t sz)
 
static void operator delete (void *me)
 
static void * operator new (std::size_t count, void *ptr)
 

Detailed Description

template<class OutputClass, class InputClass>
class pdb::SelectionComp< OutputClass, InputClass >

Definition at line 27 of file SelectionComp.h.

Member Function Documentation

template<class OutputClass , class InputClass >
virtual Lambda<Handle<OutputClass> > pdb::SelectionComp< OutputClass, InputClass >::getProjection ( Handle< InputClass >  checkMe)
pure virtual

the computation returned by this method is called to perfom a transformation on the input item before it is inserted into the output set

Parameters
checkMe
Returns

Implements pdb::SelectionCompBase< OutputClass, InputClass >.

template<class OutputClass , class InputClass >
virtual Lambda<bool> pdb::SelectionComp< OutputClass, InputClass >::getSelection ( Handle< InputClass >  checkMe)
pure virtual

The computation returned by this method is called to see if a data item should be returned in the output set

Parameters
checkMe
Returns

Implements pdb::SelectionCompBase< OutputClass, InputClass >.

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