ColumnCache (druid-processing 32.0.0 API)

java.lang.Object
- org.apache.druid.segment.ColumnCache

All Implemented Interfaces:

Expr.InputBindingInspector, ColumnInspector, ColumnSelector
```
public class ColumnCache
extends Object
implements ColumnSelector
```

- Constructor Summary
  
  Constructors
  Constructor Description
  
  ColumnCache(QueryableIndex index, Closer closer)
- Method Summary
  
  All Methods Instance Methods Concrete Methods
  Modifier and Type Method Description
  
  BaseColumn getColumn(String columnName)
  
  ColumnHolder getColumnHolder(String columnName)
  - Methods inherited from class java.lang.Object
    clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
  - Methods inherited from interface org.apache.druid.segment.ColumnInspector
    getType
  - Methods inherited from interface org.apache.druid.segment.ColumnSelector
    getColumnCapabilities
  - Methods inherited from interface org.apache.druid.math.expr.Expr.InputBindingInspector
    areNumeric, areNumeric, areSameTypes, areSameTypes, areScalar, areScalar, canVectorize, canVectorize

Constructor Detail

ColumnCache

public ColumnCache(QueryableIndex index,
                   Closer closer)

Method Detail

getColumnHolder

@Nullable
public ColumnHolder getColumnHolder(String columnName)

Specified by:: getColumnHolder in interface ColumnSelector

getColumn

@Nullable
public BaseColumn getColumn(String columnName)