org.apache.drill.exec.store.mock

Interface FieldGen

All Known Implementing Classes:

AbstractFieldGen, BooleanGen, DateGen, DoubleGen, IntGen, MoneyGen, StringGen, VaryingStringGen

public interface FieldGen

Interface which all mock column data generators must implement. Each has a setup(org.apache.drill.exec.store.mock.ColumnDef, org.apache.drill.exec.vector.accessor.ScalarWriter) method which is given the column definition for the column. This definition may have additional configuration information for the column (column width, precision, etc.). Each also has a setValue() method that does the work of setting a specific value vector position to the generated value. The implementation is expected to cast the vector to the type supported by that particular generator. (This is test code; we're not overly concerned with the overhead of such casts.)

Method Summary

Modifier and Type	Method and Description
void	setup(ColumnDef colDef, ScalarWriter colLoader)
void	setValue()

Method Detail

setup

void setup(ColumnDef colDef,
           ScalarWriter colLoader)

setValue

void setValue()