Package org.apache.drill.metastore.expressions

Class IsPredicate

java.lang.Object

org.apache.drill.metastore.expressions.IsPredicate

All Implemented Interfaces:

FilterExpression

Direct Known Subclasses:

IsPredicate.IsNotNull, IsPredicate.IsNull

public abstract class IsPredicate
extends Object
implements FilterExpression

Indicates IS predicate implementations.

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static class	IsPredicate.IsNotNull	Indicates FilterExpression.Operator.IS_NOT_NULL operator expression: storagePlugin is not null.
static class	IsPredicate.IsNull	Indicates FilterExpression.Operator.IS_NULL operator expression: storagePlugin is null.

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

FilterExpression.Operator, FilterExpression.Visitor<T>

Constructor Summary

Constructors

Modifier	Constructor	Description
protected	IsPredicate(MetastoreColumn column, FilterExpression.Operator operator)

Method Summary

Modifier and Type	Method	Description
MetastoreColumn	column()
FilterExpression.Operator	operator()
String	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

accept

Constructor Details

IsPredicate

protected IsPredicate(MetastoreColumn column,
 FilterExpression.Operator operator)

Method Details

column

public MetastoreColumn column()

operator

public FilterExpression.Operator operator()

Specified by:

operator in interface FilterExpression

toString

public String toString()

Overrides:

toString in class Object