RepeatingSeqColumnGenerator Class Reference

A repeating column sequence generator. More...

#include <ExecStreamGenerator.h>

Inheritance diagram for RepeatingSeqColumnGenerator:

List of all members.

Public Member Functions
	RepeatingSeqColumnGenerator (int nSequenceInit)
int64_t	next ()
Private Attributes
int	nSequence
int64_t	curValue

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Detailed Description

A repeating column sequence generator.

Generates column values in a repeating sequence. Values repeat after nSequence values. E.g., 0, 1, 2, ..., nSequence-1, 0, 1, 2, ..., nSequence-1, 0, ...

Definition at line 447 of file ExecStreamGenerator.h.

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Constructor & Destructor Documentation

RepeatingSeqColumnGenerator::RepeatingSeqColumnGenerator

(

int

nSequenceInit

)

[inline, explicit]

Definition at line 453 of file ExecStreamGenerator.h.

References curValue, and nSequence.

                                                            {
        assert(nSequenceInit > 0);
        nSequence = nSequenceInit;
        curValue = 0;
    }

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Member Function Documentation

int64_t RepeatingSeqColumnGenerator::next

(

)

[inline, virtual]

Implements ColumnGenerator< T >.

Definition at line 459 of file ExecStreamGenerator.h.

References curValue, and nSequence.

    {
        return curValue++ % nSequence;
    }

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Member Data Documentation

int RepeatingSeqColumnGenerator::nSequence [private]

Definition at line 449 of file ExecStreamGenerator.h.

Referenced by next(), and RepeatingSeqColumnGenerator().

int64_t RepeatingSeqColumnGenerator::curValue [private]

Definition at line 450 of file ExecStreamGenerator.h.

Referenced by next(), and RepeatingSeqColumnGenerator().

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

• /home/pub/open/dev/fennel/test/ExecStreamGenerator.h

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