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 and Description
IsNull(MetastoreColumn column)

Method Summary

Modifier and Type	Method and 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

Methods inherited from interface org.apache.drill.metastore.expressions.FilterExpression

and, and, equal, greaterThan, greaterThanOrEqual, in, in, isNotNull, isNull, lessThan, lessThanOrEqual, not, notEqual, notIn, notIn, or

Constructor Detail

IsNull

public IsNull(MetastoreColumn column)

Method Detail

accept

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