com.mware.ge.values.storable

Class NoValue

java.lang.Object

com.mware.ge.values.AnyValue

com.mware.ge.values.storable.Value

com.mware.ge.values.storable.NoValue

public final class NoValue
extends Value

Not a value.

The NULL object of the Value world. Is implemented as a singleton, to allow direct reference equality checks (==), and avoid unnecessary object creation.

Field Summary

Fields

Modifier and Type	Field and Description
static NoValue	NO_VALUE

Method Summary

Modifier and Type	Method and Description
Object	asObjectCopy() Return this value as a regular java boxed primitive, String or primitive array.
int	computeHash()
boolean	eq(Object other)
boolean	equals(Value other)
String	getTypeName()
<T> T	map(ValueMapper<T> mapper)
NumberType	numberType()
String	prettyPrint() Returns a json-like string representation of the current value.
Boolean	ternaryEquals(AnyValue other)
String	toString()
long	updateHash(HashFunction hashFunction, long hash)
ValueGroup	valueGroup()
<E extends Exception> void	writeTo(ValueWriter<E> writer)

Methods inherited from class com.mware.ge.values.storable.Value

asObject, equals, equals, equals, equals, equals, equals, equals, equals, equals, equals, equals, equals, equals, equals, equals, equals, equals, equals, equals, equals, hashCode64, isNaN, parseHeaderInformation, writeTo

Methods inherited from class com.mware.ge.values.AnyValue

equals, hashCode, isSequenceValue

Methods inherited from class java.lang.Object

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

Field Detail

NO_VALUE

public static final NoValue NO_VALUE

Method Detail

eq

public boolean eq(Object other)

Overrides:

eq in class Value

ternaryEquals

public Boolean ternaryEquals(AnyValue other)

Overrides:

ternaryEquals in class Value

map

public <T> T map(ValueMapper<T> mapper)

Specified by:

map in class AnyValue

updateHash

public long updateHash(HashFunction hashFunction,
                       long hash)

Specified by:

updateHash in class Value

computeHash

public int computeHash()

Specified by:

computeHash in class AnyValue

equals

public boolean equals(Value other)

Specified by:

equals in class Value

writeTo

public <E extends Exception> void writeTo(ValueWriter<E> writer)
                                   throws E extends Exception

Specified by:

writeTo in class Value

Throws:

E extends Exception

asObjectCopy

public Object asObjectCopy()

Description copied from class: Value

Return this value as a regular java boxed primitive, String or primitive array. This method performs defensive copying when needed, so the returned value is safe to modify.

Specified by:

asObjectCopy in class Value

Returns:

the object version of the current value

toString

public String toString()

Overrides:

toString in class Object

prettyPrint

public String prettyPrint()

Description copied from class: Value

Returns a json-like string representation of the current value.

Specified by:

prettyPrint in class Value

getTypeName

public String getTypeName()

Specified by:

getTypeName in class AnyValue

valueGroup

public ValueGroup valueGroup()

Specified by:

valueGroup in class Value

numberType

public NumberType numberType()

Specified by:

numberType in class Value