Package com.exasol.adapter.sql

Class SqlPredicateIsNull

java.lang.Object

com.exasol.adapter.sql.SqlNode

com.exasol.adapter.sql.SqlPredicate

com.exasol.adapter.sql.SqlPredicateIsNull

public class SqlPredicateIsNull
extends SqlPredicate

The type Sql predicate is null.

Constructor Summary

Constructors

Constructor	Description
SqlPredicateIsNull(SqlNode expression)	Instantiates a new Sql predicate is null.

Method Summary

Modifier and Type	Method	Description
<R> R	accept(SqlNodeVisitor<R> visitor)	See SqlNodeVisitor
SqlNode	getExpression()	Gets expression.
SqlNodeType	getType()	Gets type.

Methods inherited from class com.exasol.adapter.sql.SqlPredicate

getFunction

Methods inherited from class com.exasol.adapter.sql.SqlNode

getParent, hasParent, setParent

Methods inherited from class java.lang.Object

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

Constructor Detail

SqlPredicateIsNull

public SqlPredicateIsNull(SqlNode expression)

Instantiates a new Sql predicate is null.

Parameters:

expression - the expression

Method Detail

getExpression

public SqlNode getExpression()

Gets expression.

Returns:

the expression

getType

public SqlNodeType getType()

Description copied from class: SqlNode

Gets type.

Specified by:

getType in class SqlNode

Returns:

the type

accept

public <R> R accept(SqlNodeVisitor<R> visitor)
             throws AdapterException

Description copied from class: SqlNode

See SqlNodeVisitor

Specified by:

accept in class SqlNode

Type Parameters:

R - generic SqlNodeVisitor type

Parameters:

visitor - The visitor object on which the appropriate visit(sqlNode) method is called

Returns:

visited object

Throws:

AdapterException - can be thrown