Package software.amazon.awssdk.protocols.jsoncore.internal

Class NullJsonNode

java.lang.Object

software.amazon.awssdk.protocols.jsoncore.internal.NullJsonNode

All Implemented Interfaces:

JsonNode

public final class NullJsonNode
extends Object
implements JsonNode

A null JsonNode.

Implementation notes: this class should've been outside internal package, but we can't fix it due to backwards compatibility reasons.

Method Summary

Modifier and Type	Method	Description
List<JsonNode>	asArray()	When JsonNode.isArray() is true, this returns the array associated with this node.
boolean	asBoolean()	When JsonNode.isBoolean() is true, this returns the boolean associated with this node.
Object	asEmbeddedObject()	When JsonNode.isEmbeddedObject() is true, this returns the embedded object associated with this node.
String	asNumber()	When JsonNode.isNumber() is true, this returns the number associated with this node.
Map<String,JsonNode>	asObject()	When JsonNode.isObject() is true, this returns the object associated with this node.
String	asString()	When JsonNode.isString(), is true, this returns the string associated with this node.
boolean	equals(Object obj)
int	hashCode()
static NullJsonNode	instance()
boolean	isNull()	Returns true if this node represents a JSON null: https://datatracker.ietf.org/doc/html/rfc8259#section-3
String	text()	When JsonNode.isString(), JsonNode.isBoolean(), or JsonNode.isNumber() is true, this will return the value of this node as a textual string.
String	toString()
<T> T	visit(JsonNodeVisitor<T> visitor)	Visit this node using the provided visitor.

Methods inherited from class java.lang.Object

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

Methods inherited from interface software.amazon.awssdk.protocols.jsoncore.JsonNode

field, index, isArray, isBoolean, isEmbeddedObject, isNumber, isObject, isString

Method Detail

instance

public static NullJsonNode instance()

isNull

public boolean isNull()

Description copied from interface: JsonNode

Returns true if this node represents a JSON null: https://datatracker.ietf.org/doc/html/rfc8259#section-3

Specified by:

isNull in interface JsonNode

asNumber

public String asNumber()

Description copied from interface: JsonNode

When JsonNode.isNumber() is true, this returns the number associated with this node. This will throw an exception if JsonNode.isNumber() is false.

Specified by:

asNumber in interface JsonNode

See Also:

JsonNode.text()

asString

public String asString()

Description copied from interface: JsonNode

When JsonNode.isString(), is true, this returns the string associated with this node. This will throw an exception if JsonNode.isString() ()} is false.

Specified by:

asString in interface JsonNode

asBoolean

public boolean asBoolean()

Description copied from interface: JsonNode

When JsonNode.isBoolean() is true, this returns the boolean associated with this node. This will throw an exception if JsonNode.isBoolean() is false.

Specified by:

asBoolean in interface JsonNode

asArray

public List<JsonNode> asArray()

Description copied from interface: JsonNode

When JsonNode.isArray() is true, this returns the array associated with this node. This will throw an exception if JsonNode.isArray() is false.

Specified by:

asArray in interface JsonNode

asObject

public Map<String,JsonNode> asObject()

Description copied from interface: JsonNode

When JsonNode.isObject() is true, this returns the object associated with this node. This will throw an exception if JsonNode.isObject() is false.

Specified by:

asObject in interface JsonNode

asEmbeddedObject

public Object asEmbeddedObject()

Description copied from interface: JsonNode

When JsonNode.isEmbeddedObject() is true, this returns the embedded object associated with this node. This will throw an exception if JsonNode.isEmbeddedObject() is false.

Specified by:

asEmbeddedObject in interface JsonNode

See Also:

JsonNode.isEmbeddedObject()

visit

public <T> T visit(JsonNodeVisitor<T> visitor)

Description copied from interface: JsonNode

Visit this node using the provided visitor.

Specified by:

visit in interface JsonNode

text

public String text()

Description copied from interface: JsonNode

When JsonNode.isString(), JsonNode.isBoolean(), or JsonNode.isNumber() is true, this will return the value of this node as a textual string. If this is any other type, this will return null.

Specified by:

text in interface JsonNode

toString

public String toString()

Overrides:

toString in class Object

equals

public boolean equals(Object obj)

Overrides:

equals in class Object

hashCode

public int hashCode()

Overrides:

hashCode in class Object