Package org.apache.drill.metastore.expressions

Class IsPredicate.IsNull

java.lang.Object

org.apache.drill.metastore.expressions.IsPredicate

org.apache.drill.metastore.expressions.IsPredicate.IsNull

All Implemented Interfaces:

FilterExpression

Enclosing class:

IsPredicate

public static class IsPredicate.IsNull
extends IsPredicate

Indicates FilterExpression.Operator.IS_NULL operator expression: storagePlugin is null.

Nested Class Summary

Nested classes/interfaces inherited from class org.apache.drill.metastore.expressions.IsPredicate

IsPredicate.IsNotNull, IsPredicate.IsNull

Nested classes/interfaces inherited from interface org.apache.drill.metastore.expressions.FilterExpression

FilterExpression.Operator, FilterExpression.Visitor<T>

Constructor Summary

Constructors

Constructor	Description
IsNull(MetastoreColumn column)

Method Summary

Modifier and Type	Method	Description
<V> V	accept(FilterExpression.Visitor<V> visitor)

Methods inherited from class org.apache.drill.metastore.expressions.IsPredicate

column, operator, toString

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Constructor Details

IsNull

public IsNull(MetastoreColumn column)

Method Details

accept

public <V> V accept(FilterExpression.Visitor<V> visitor)