BooleanFilter (druid-processing 30.0.1 API)

All Superinterfaces:

Filter

All Known Implementing Classes:

AndFilter, OrFilter
```
public interface BooleanFilter
extends Filter
```

Method Summary

All Methods Instance Methods Abstract Methods Default Methods
Modifier and Type	Method	Description
`LinkedHashSet<Filter>`	`getFilters()`	Returns the child filters for this filter.
`default Set<String>`	`getRequiredColumns()`	Set of columns used by a filter.

Methods inherited from interface org.apache.druid.query.filter.Filter
canVectorizeMatcher, getBitmapColumnIndex, makeFilterBundle, makeMatcher, makeVectorMatcher, rewriteRequiredColumns, supportsRequiredColumnRewrite

- Method Detail
  - getFilters
```
LinkedHashSet<Filter> getFilters()
```
    Returns the child filters for this filter. This is a LinkedHashSet because we don't want duplicates, but the order is also important in some cases (such as when filters are provided in an order that encourages short-circuiting.)
  - getRequiredColumns
```
default Set<String> getRequiredColumns()
```
    Description copied from interface: Filter
    
    Set of columns used by a filter.
    
    Specified by:
    
    getRequiredColumns in interface Filter