RemoveNotOptimizer (IoTDB Spark-TsFile 0.14.0-preview3 API)

java.lang.Object
- org.apache.iotdb.spark.tsfile.qp.optimizer.RemoveNotOptimizer

All Implemented Interfaces:: IFilterOptimizer

public class RemoveNotOptimizer
extends java.lang.Object
implements IFilterOptimizer

Constructor Summary

Constructors
Constructor Description

RemoveNotOptimizer()

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`FilterOperator`	`optimize(FilterOperator filter)`	get DNF(disjunctive normal form) for this filter operator tree.

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Constructor Detail
  - RemoveNotOptimizer
```
public RemoveNotOptimizer()
```
- Method Detail
  - optimize
```
public FilterOperator optimize(FilterOperator filter)
                        throws RemoveNotException
```
    get DNF(disjunctive normal form) for this filter operator tree. Before getDNF, this op tree must be binary, in another word, each non-leaf node has exactly two children.
    
    Specified by:
    
    optimize in interface IFilterOptimizer
    
    Parameters:
    
    filter - filter operator to be optimized
    
    Returns:
    
    optimized filter operator
    
    Throws:
    
    RemoveNotException - excepiton in remove not optimizing