org.embulk.spi.json

Class JsonBoolean

java.lang.Object

org.embulk.spi.json.JsonBoolean

All Implemented Interfaces:

JsonValue

public final class JsonBoolean
extends Object
implements JsonValue

Represents true or false in JSON.

Since:

0.10.42

See Also:

RFC 8259 - The JavaScript Object Notation (JSON) Data Interchange Format

Nested Class Summary

Nested classes/interfaces inherited from interface org.embulk.spi.json.JsonValue

JsonValue.EntityType

Field Summary

Fields

Modifier and Type	Field and Description
static JsonBoolean	FALSE The singleton instance that represents false in JSON.
static JsonBoolean	TRUE The singleton instance that represents true in JSON.

Method Summary

Modifier and Type	Method and Description
JsonBoolean	asJsonBoolean() Returns this value as JsonBoolean.
boolean	booleanValue() Returns this JSON true or false as a primitive boolean.
boolean	equals(Object otherObject) Compares the specified object with this JSON true or false for equality.
JsonValue.EntityType	getEntityType() Returns JsonValue.EntityType.BOOLEAN, which is the entity type of JsonBoolean.
int	hashCode() Returns the hash code value for this JSON true or false.
static JsonBoolean	of(boolean value) Returns the singleton instance of TRUE or FALSE.
int	presumeReferenceSizeInBytes() Returns 1 for the size of byte in bytes presumed to occupy in Page as a reference.
String	toJson() Returns the stringified JSON representation of this JSON true or false.
Value	toMsgpack() Deprecated. Do not use this method. It is to be removed at some point after Embulk v1.0.0. It is here only to ensure a migration period from MessagePack-based JSON values to new JSON values of JsonValue.
String	toString() Returns the string representation of this JSON true or false.

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.embulk.spi.json.JsonValue

asJsonArray, asJsonDouble, asJsonLong, asJsonNull, asJsonObject, asJsonString, fromMsgpack, isJsonArray, isJsonBoolean, isJsonDouble, isJsonLong, isJsonNull, isJsonObject, isJsonString

Field Detail

FALSE

public static final JsonBoolean FALSE

The singleton instance that represents false in JSON.

Since:

0.10.42

TRUE

public static final JsonBoolean TRUE

The singleton instance that represents true in JSON.

Since:

0.10.42

Method Detail

of

public static JsonBoolean of(boolean value)

Returns the singleton instance of TRUE or FALSE.

Returns:

the singleton instance of TRUE or FALSE

Since:

0.10.42

getEntityType

public JsonValue.EntityType getEntityType()

Returns JsonValue.EntityType.BOOLEAN, which is the entity type of JsonBoolean.

Specified by:

getEntityType in interface JsonValue

Returns:

JsonValue.EntityType.BOOLEAN, which is the entity type of JsonBoolean

Since:

0.10.42

asJsonBoolean

public JsonBoolean asJsonBoolean()

Returns this value as JsonBoolean.

Specified by:

asJsonBoolean in interface JsonValue

Returns:

itself as JsonBoolean

Since:

0.10.42

presumeReferenceSizeInBytes

public int presumeReferenceSizeInBytes()

Returns 1 for the size of byte in bytes presumed to occupy in Page as a reference.

This approximate size is used only as a threshold whether PageBuilder is flushed, or not. It is not accurate, it does not need to be accurate, and it is impossible in general to tell an accurate size that a Java object occupies in the Java heap. But, a reasonable approximate would help to keep Page performant in the Java heap.

It is better to flush more frequently for bigger JSON value objects, less often for smaller JSON value objects, but no infinite accumulation even for empty JSON value objects.

Specified by:

presumeReferenceSizeInBytes in interface JsonValue

Returns:

1

See Also:

"org.embulk.spi.PageBuilderImpl#addRecord", SIZE_OF_BYTE in Airlift's Slice

booleanValue

public boolean booleanValue()

Returns this JSON true or false as a primitive boolean.

Returns:

the boolean representation of this JSON true or false

Since:

0.10.42

toJson

public String toJson()

Returns the stringified JSON representation of this JSON true or false.

Specified by:

toJson in interface JsonValue

Returns:

the stringified JSON representation of this JSON true or false

Since:

0.10.42

toMsgpack

@Deprecated
public Value toMsgpack()

Deprecated. Do not use this method. It is to be removed at some point after Embulk v1.0.0. It is here only to ensure a migration period from MessagePack-based JSON values to new JSON values of JsonValue.

Returns the corresponding MessagePack's Boolean value of this JSON true or false.

Specified by:

toMsgpack in interface JsonValue

Returns:

the corresponding MessagePack's Boolean value of this JSON true or false

Since:

0.10.42

See Also:

Draft EEP: JSON Column Type

toString

public String toString()

Returns the string representation of this JSON true or false.

Overrides:

toString in class Object

Returns:

the string representation of this JSON true or false

Since:

0.10.42

equals

public boolean equals(Object otherObject)

Compares the specified object with this JSON true or false for equality.

Overrides:

equals in class Object

Returns:

true if the specified object is equal to this JSON true or false

Since:

0.10.42

hashCode

public int hashCode()

Returns the hash code value for this JSON true or false.

Overrides:

hashCode in class Object

Returns:

the hash code value for this JSON true or false

Since:

0.10.42