org.msgpack.value.impl

Class ImmutableNilValueImpl

java.lang.Object

org.msgpack.value.impl.AbstractImmutableValue

org.msgpack.value.impl.ImmutableNilValueImpl

All Implemented Interfaces:

ImmutableNilValue, ImmutableValue, NilValue, Value

public class ImmutableNilValueImpl
extends AbstractImmutableValue
implements ImmutableNilValue

ImmutableNilValueImpl Implements ImmutableNilValue. This class is a singleton. ImmutableNilValueImpl.get() is the only instances of this class.

See Also:

NilValue

Field Summary

Fields

Modifier and Type	Field and Description
private static ImmutableNilValue	instance

Constructor Summary

Constructors

Modifier	Constructor and Description
private	ImmutableNilValueImpl()

Method Summary

Modifier and Type	Method and Description
ImmutableNilValue	asNilValue() Returns the value as NilValue.
boolean	equals(java.lang.Object o) Compares this value to the specified object.
static ImmutableNilValue	get()
ValueType	getValueType() Returns type of this value.
int	hashCode()
ImmutableNilValue	immutableValue() Returns immutable copy of this value.
java.lang.String	toJson() Returns json representation of this Value.
java.lang.String	toString()
void	writeTo(MessagePacker pk) Serializes the value using the specified MessagePacker

Methods inherited from class org.msgpack.value.impl.AbstractImmutableValue

asArrayValue, asBinaryValue, asBooleanValue, asExtensionValue, asFloatValue, asIntegerValue, asMapValue, asNumberValue, asRawValue, asStringValue, asTimestampValue, isArrayValue, isBinaryValue, isBooleanValue, isExtensionValue, isFloatValue, isIntegerValue, isMapValue, isNilValue, isNumberValue, isRawValue, isStringValue, isTimestampValue

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.msgpack.value.ImmutableValue

asArrayValue, asBinaryValue, asBooleanValue, asFloatValue, asIntegerValue, asMapValue, asRawValue, asStringValue, asTimestampValue

Methods inherited from interface org.msgpack.value.Value

asExtensionValue, asNumberValue, isArrayValue, isBinaryValue, isBooleanValue, isExtensionValue, isFloatValue, isIntegerValue, isMapValue, isNilValue, isNumberValue, isRawValue, isStringValue, isTimestampValue

Field Detail

instance

private static ImmutableNilValue instance

Constructor Detail

ImmutableNilValueImpl

private ImmutableNilValueImpl()

Method Detail

get

public static ImmutableNilValue get()

getValueType

public ValueType getValueType()

Description copied from interface: Value

Returns type of this value. Note that you can't use instanceof to check type of a value because type of a mutable value is variable.

Specified by:

getValueType in interface Value

immutableValue

public ImmutableNilValue immutableValue()

Description copied from interface: Value

Returns immutable copy of this value. This method simply returns this without copying the value if this value is already immutable.

Specified by:

immutableValue in interface Value

asNilValue

public ImmutableNilValue asNilValue()

Description copied from interface: Value

Returns the value as NilValue. Otherwise throws MessageTypeCastException. Note that you can't use instanceof or cast ((NilValue) thisValue) to check type of a value because type of a mutable value is variable.

Specified by:

asNilValue in interface ImmutableValue

Specified by:

asNilValue in interface Value

Overrides:

asNilValue in class AbstractImmutableValue

writeTo

public void writeTo(MessagePacker pk)
             throws java.io.IOException

Description copied from interface: Value

Serializes the value using the specified MessagePacker

Specified by:

writeTo in interface Value

Throws:

java.io.IOException

See Also:

MessagePacker

equals

public boolean equals(java.lang.Object o)

Description copied from interface: Value

Compares this value to the specified object. This method returns true if type and value are equivalent. If this value is MapValue or ArrayValue, this method check equivalence of elements recursively.

Specified by:

equals in interface Value

Overrides:

equals in class java.lang.Object

hashCode

public int hashCode()

Overrides:

hashCode in class java.lang.Object

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object

toJson

public java.lang.String toJson()

Description copied from interface: Value

Returns json representation of this Value.

Following behavior is not configurable at this release and they might be changed at future releases:

• if a key of MapValue is not string, the key is converted to a string using toString method.
• NaN and Infinity of DoubleValue are converted to null.
• ExtensionValue is converted to a 2-element array where first element is a number and second element is the data encoded in hex.
• BinaryValue is converted to a string using UTF-8 encoding. Invalid byte sequence is replaced with U+FFFD replacement character.
• Invalid UTF-8 byte sequences in StringValue is replaced with U+FFFD replacement character

Specified by:

toJson in interface Value