software.amazon.smithy.model.node

Class NullNode

java.lang.Object

software.amazon.smithy.model.node.Node

software.amazon.smithy.model.node.NullNode

All Implemented Interfaces:

FromSourceLocation, ToNode

public final class NullNode
extends Node

Represents a null node.

Nested Class Summary

Nested classes/interfaces inherited from class software.amazon.smithy.model.node.Node

Node.NonNumericFloat

Constructor Summary

Constructors

Constructor and Description
NullNode(SourceLocation sourceLocation)

Method Summary

Modifier and Type	Method and Description
<R> R	accept(NodeVisitor<R> visitor) Accepts a visitor with the node.
java.util.Optional<NullNode>	asNullNode() Gets the node as an NullNode if it is a null.
boolean	equals(java.lang.Object other)
NullNode	expectNullNode(java.lang.String errorMessage) Casts the current node to a NullNode, throwing ExpectationNotMetException when the node is the wrong type.
NullNode	expectNullNode(java.util.function.Supplier<java.lang.String> errorMessage) Casts the current node to a NullNode, throwing ExpectationNotMetException when the node is the wrong type.
NodeType	getType() Gets the type of the node.
int	hashCode()
java.lang.String	toString()

Methods inherited from class software.amazon.smithy.model.node.Node

arrayNode, arrayNode, asArrayNode, asBooleanNode, asNumberNode, asObjectNode, assertEquals, asStringNode, diff, expectArrayNode, expectArrayNode, expectArrayNode, expectBooleanNode, expectBooleanNode, expectBooleanNode, expectNullNode, expectNumberNode, expectNumberNode, expectNumberNode, expectObjectNode, expectObjectNode, expectObjectNode, expectStringNode, expectStringNode, expectStringNode, from, from, from, fromNodes, fromNodes, fromStrings, fromStrings, getSourceLocation, isArrayNode, isBooleanNode, isNullNode, isNumberNode, isObjectNode, isStringNode, loadArrayOfString, nullNode, objectNode, objectNode, objectNodeBuilder, parse, parse, parse, parse, parseJsonWithComments, parseJsonWithComments, prettyPrintJson, prettyPrintJson, printJson, toNode, withDeepSortedKeys, withDeepSortedKeys

Methods inherited from class java.lang.Object

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

Constructor Detail

NullNode

public NullNode(SourceLocation sourceLocation)

Method Detail

getType

public NodeType getType()

Description copied from class: Node

Gets the type of the node.

Specified by:

getType in class Node

Returns:

Returns the node type.

accept

public <R> R accept(NodeVisitor<R> visitor)

Description copied from class: Node

Accepts a visitor with the node.

Specified by:

accept in class Node

Type Parameters:

R - visitor return type.

Parameters:

visitor - Visitor to dispatch to.

Returns:

Returns the accepted result.

expectNullNode

public NullNode expectNullNode(java.lang.String errorMessage)

Description copied from class: Node

Casts the current node to a NullNode, throwing ExpectationNotMetException when the node is the wrong type.

Overrides:

expectNullNode in class Node

Parameters:

errorMessage - Error message to use if the node is of the wrong type.

Returns:

Returns a null node.

expectNullNode

public NullNode expectNullNode(java.util.function.Supplier<java.lang.String> errorMessage)

Description copied from class: Node

Casts the current node to a NullNode, throwing ExpectationNotMetException when the node is the wrong type.

Overrides:

expectNullNode in class Node

Parameters:

errorMessage - Error message supplier.

Returns:

Returns a null node.

asNullNode

public java.util.Optional<NullNode> asNullNode()

Description copied from class: Node

Gets the node as an NullNode if it is a null.

Overrides:

asNullNode in class Node

Returns:

Returns the optional NullNode.

equals

public boolean equals(java.lang.Object other)

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