oracle.pg.rdbms.pgql.pgview.translation.expression

Class NullExpression

java.lang.Object

oracle.pg.rdbms.pgql.pgview.translation.expression.NullExpression

All Implemented Interfaces:

oracle.pgql.lang.ir.QueryExpression

public class NullExpression
extends java.lang.Object
implements oracle.pgql.lang.ir.QueryExpression

Nested Class Summary

Nested classes/interfaces inherited from interface oracle.pgql.lang.ir.QueryExpression

oracle.pgql.lang.ir.QueryExpression.Aggregation, oracle.pgql.lang.ir.QueryExpression.ArithmeticExpression, oracle.pgql.lang.ir.QueryExpression.BinaryExpression, oracle.pgql.lang.ir.QueryExpression.BindVariable, oracle.pgql.lang.ir.QueryExpression.ConcatExpression, oracle.pgql.lang.ir.QueryExpression.Constant<T>, oracle.pgql.lang.ir.QueryExpression.ExpressionType, oracle.pgql.lang.ir.QueryExpression.ExtractExpression, oracle.pgql.lang.ir.QueryExpression.Function, oracle.pgql.lang.ir.QueryExpression.FunctionCall, oracle.pgql.lang.ir.QueryExpression.IfElse, oracle.pgql.lang.ir.QueryExpression.InPredicate, oracle.pgql.lang.ir.QueryExpression.IsNull, oracle.pgql.lang.ir.QueryExpression.LogicalExpression, oracle.pgql.lang.ir.QueryExpression.PropertyAccess, oracle.pgql.lang.ir.QueryExpression.RelationalExpression, oracle.pgql.lang.ir.QueryExpression.ScalarSubquery, oracle.pgql.lang.ir.QueryExpression.SimpleCase, oracle.pgql.lang.ir.QueryExpression.Star, oracle.pgql.lang.ir.QueryExpression.Subquery, oracle.pgql.lang.ir.QueryExpression.SubstringExpression, oracle.pgql.lang.ir.QueryExpression.UnaryExpression, oracle.pgql.lang.ir.QueryExpression.VarRef, oracle.pgql.lang.ir.QueryExpression.WhenThenExpression

Constructor Summary

Constructors

Constructor and Description
NullExpression()

Method Summary

Modifier and Type	Method and Description
void	accept(oracle.pgql.lang.ir.QueryExpressionVisitor v)
oracle.pgql.lang.ir.QueryExpression.ExpressionType	getExpType()
java.lang.String	toString()

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, wait, wait, wait

Constructor Detail

NullExpression

public NullExpression()

Method Detail

accept

public void accept(oracle.pgql.lang.ir.QueryExpressionVisitor v)

Specified by:

accept in interface oracle.pgql.lang.ir.QueryExpression

getExpType

public oracle.pgql.lang.ir.QueryExpression.ExpressionType getExpType()

Specified by:

getExpType in interface oracle.pgql.lang.ir.QueryExpression

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object