net.sf.jsqlparser.expression

Class NullValue

java.lang.Object

net.sf.jsqlparser.expression.NullValue

All Implemented Interfaces:

java.io.Serializable, Expression, PrimitiveValue

public class NullValue
extends java.lang.Object
implements Expression, PrimitiveValue

A "NULL" in a sql statement

See Also:

Serialized Form

Nested Class Summary

Nested classes/interfaces inherited from interface net.sf.jsqlparser.expression.PrimitiveValue

PrimitiveValue.InvalidPrimitive

Constructor Summary

Constructors

Constructor and Description
NullValue()

Method Summary

Modifier and Type	Method and Description
void	accept(ExpressionVisitor expressionVisitor)
boolean	equals(java.lang.Object o)
PrimitiveType	getType()
int	hashCode()
boolean	toBool() The boolean value of this primitive
double	toDouble() The double value of this primitive
long	toLong() The long value of this primitive
java.lang.String	toRawString() An unescaped string encoding of this primitive value.
java.lang.String	toString()

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Constructor Detail

NullValue

public NullValue()

Method Detail

accept

public void accept(ExpressionVisitor expressionVisitor)

Specified by:

accept in interface Expression

toRawString

public java.lang.String toRawString()

Description copied from interface: PrimitiveValue

An unescaped string encoding of this primitive value. (toString() returns an escaped string)

Specified by:

toRawString in interface PrimitiveValue

Returns:

The unescaped string encoding of this primitive value

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object

toLong

public long toLong()
            throws PrimitiveValue.InvalidPrimitive

Description copied from interface: PrimitiveValue

The long value of this primitive

Specified by:

toLong in interface PrimitiveValue

Returns:

The long value of this primitive if it is a LongPrimitive

Throws:

PrimitiveValue.InvalidPrimitive - otherwise

toDouble

public double toDouble()
                throws PrimitiveValue.InvalidPrimitive

Description copied from interface: PrimitiveValue

The double value of this primitive

Specified by:

toDouble in interface PrimitiveValue

Returns:

The double value of this primitive if it is a LongPrimitive or DoublePrimitive

Throws:

PrimitiveValue.InvalidPrimitive - otherwise

toBool

public boolean toBool()
               throws PrimitiveValue.InvalidPrimitive

Description copied from interface: PrimitiveValue

The boolean value of this primitive

Specified by:

toBool in interface PrimitiveValue

Returns:

The boolean value of this primitive if it is a BoolPrimitive

Throws:

PrimitiveValue.InvalidPrimitive - otherwise

equals

public boolean equals(java.lang.Object o)

Overrides:

equals in class java.lang.Object

hashCode

public int hashCode()

Overrides:

hashCode in class java.lang.Object

getType

public PrimitiveType getType()

Specified by:

getType in interface PrimitiveValue