Package org.queryman.builder.token.expression

Class NullExpression

java.lang.Object

org.queryman.builder.token.AbstractToken

org.queryman.builder.token.Expression

org.queryman.builder.token.expression.NullExpression

All Implemented Interfaces:

ExpressionAsStep, ExpressionCastStep, Token

public class NullExpression
extends Expression

This class is representation of null constant.

Field Summary

Fields inherited from class org.queryman.builder.token.AbstractToken

name

Fields inherited from class org.queryman.builder.token.Expression

outputName

Constructor Summary

Constructors

Constructor	Description
NullExpression(java.lang.Object constant)

Method Summary

Modifier and Type	Method	Description
protected java.lang.String	prepareName()

Methods inherited from class org.queryman.builder.token.AbstractToken

isEmpty, isNonEmpty, toString

Methods inherited from class org.queryman.builder.token.Expression

as, as, cast, getCastExpression, getName, toPostgreSQLString

Methods inherited from class java.lang.Object

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

Constructor Detail

NullExpression

public NullExpression(java.lang.Object constant)

Method Detail

prepareName

protected java.lang.String prepareName()

Specified by:

prepareName in class Expression