RelOptCostFactory (Apache Calcite API)

All Known Implementing Classes:

RelOptCostImpl.Factory, VolcanoCost.Factory
```
public interface RelOptCostFactory
```
Cost model for query planning.

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`RelOptCost`	`makeCost(double rowCount, double cpu, double io)`	Creates a cost object.
`RelOptCost`	`makeHugeCost()`	Creates a cost object representing an enormous non-infinite cost.
`RelOptCost`	`makeInfiniteCost()`	Creates a cost object representing infinite cost.
`RelOptCost`	`makeTinyCost()`	Creates a cost object representing a small positive cost.
`RelOptCost`	`makeZeroCost()`	Creates a cost object representing zero cost.

- Method Detail
  - makeCost
```
RelOptCost makeCost(double rowCount,
                    double cpu,
                    double io)
```
    Creates a cost object.
  - makeHugeCost
```
RelOptCost makeHugeCost()
```
    Creates a cost object representing an enormous non-infinite cost.
  - makeInfiniteCost
```
RelOptCost makeInfiniteCost()
```
    Creates a cost object representing infinite cost.
  - makeTinyCost
```
RelOptCost makeTinyCost()
```
    Creates a cost object representing a small positive cost.
  - makeZeroCost
```
RelOptCost makeZeroCost()
```
    Creates a cost object representing zero cost.