RemoveNotOptimizer (IoTDB Server 0.14.0-preview2 API)

java.lang.Object
- org.apache.iotdb.db.mpp.plan.rewriter.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
  
  QueryFilter optimize(QueryFilter filter)
  get DNF(disjunctive normal form) for this filter 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 QueryFilter optimize(QueryFilter filter)
                     throws StatementAnalyzeException
```
    get DNF(disjunctive normal form) for this filter 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
    
    Returns:
    
    optimized filter
    
    Throws:
    
    StatementAnalyzeException - exception in RemoveNot optimizing