TupleProcessor (NanoDB SQL Relational Database 0.1-SNAPSHOT API)

All Known Implementing Classes:

CommandResult.ResultCollector, DeleteCommand.TupleRemover, DumpCommand.TupleExporter, InsertCommand.TupleInserter, PrettyTuplePrinter, TuplePrinter, TupleSender, UpdateCommand.TupleUpdater
```
public interface TupleProcessor
```
This interface allows us to decouple the implementation of the query evaluation loop from the operations performed on each tuple generated by the evaluator. Different commands can implement this interface in different ways to perform various operations; for example, the DELETE command can provide a processor that deletes each tuple produced by the query evaluation.

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`void`	`finish()`	This function is called when all tuples have been produced and passed to the tuple processor.
`void`	`process(Tuple tuple)`	Processes a single tuple generated from evaluating a query plan.
`void`	`setSchema(Schema schema)`	This method is called once by the query evaluator before any tuples are passed to the `process(edu.caltech.nanodb.relations.Tuple)` method, so that the tuple-processor knows what the expected tuple-schema will be.

- Method Detail
  - setSchema
```
void setSchema(Schema schema)
```
    This method is called once by the query evaluator before any tuples are passed to the process(edu.caltech.nanodb.relations.Tuple) method, so that the tuple-processor knows what the expected tuple-schema will be.
  - process
```
void process(Tuple tuple)
```
    Processes a single tuple generated from evaluating a query plan.
    
    Parameters:
    
    tuple - The tuple to process.
  - finish
```
void finish()
```
    This function is called when all tuples have been produced and passed to the tuple processor.