Package graphql.language

Class Document

java.lang.Object

graphql.language.AbstractNode<Document>

graphql.language.Document

All Implemented Interfaces:

Node<Document>, Serializable

@PublicApi
public class Document
extends AbstractNode<Document>

See Also:

• Serialized Form

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static final class	Document.Builder

Field Summary

Fields

Modifier and Type	Field	Description
static final String	CHILD_DEFINITIONS

Constructor Summary

Constructors

Modifier	Constructor	Description
	Document(List<Definition> definitions)	alternative to using a Builder for convenience
protected	Document(List<Definition> definitions, SourceLocation sourceLocation, List<Comment> comments, IgnoredChars ignoredChars, Map<String,String> additionalData)

Method Summary

Modifier and Type	Method	Description
TraversalControl	accept(TraverserContext<Node> context, NodeVisitor visitor)	Double-dispatch entry point.
Document	deepCopy()
List<Node>	getChildren()
List<Definition>	getDefinitions()
<T extends Definition> List<T>	getDefinitionsOfType(Class<T> definitionClass)	Returns a list of definitions of the specific type.
<T extends Definition> Optional<T>	getFirstDefinitionOfType(Class<T> definitionClass)	Returns the first of the specific type.
NodeChildrenContainer	getNamedChildren()	Alternative to Node.getChildren() where the children are not all in one list regardless of type but grouped by name/type of the child.
Optional<OperationDefinition>	getOperationDefinition(String name)	This will allow you to find a OperationDefinition with the specified name in the document
boolean	isEqualTo(Node o)	Compares just the content and not the children.
static Document.Builder	newDocument()
String	toString()
Document	transform(Consumer<Document.Builder> builderConsumer)
Document	withNewChildren(NodeChildrenContainer newChildren)	Replaces the specified children and returns a new Node.

Methods inherited from class graphql.language.AbstractNode

deepCopy, deepCopy, getAdditionalData, getComments, getIgnoredChars, getSourceLocation

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Field Details

CHILD_DEFINITIONS

public static final String CHILD_DEFINITIONS

See Also:

• Constant Field Values

Constructor Details

Document

protected Document(List<Definition> definitions,
 SourceLocation sourceLocation,
 List<Comment> comments,
 IgnoredChars ignoredChars,
 Map<String,String> additionalData)

Document

public Document(List<Definition> definitions)

alternative to using a Builder for convenience

Parameters:

definitions - the definitions that make up this document

Method Details

getDefinitions

public List<Definition> getDefinitions()

getDefinitionsOfType

public <T extends Definition> List<T> getDefinitionsOfType(Class<T> definitionClass)

Returns a list of definitions of the specific type. It uses Class.isAssignableFrom(Class) for the test

Type Parameters:

T - the type of definition

Parameters:

definitionClass - the definition class

Returns:

a list of definitions of that class or empty list

getFirstDefinitionOfType

public <T extends Definition> Optional<T> getFirstDefinitionOfType(Class<T> definitionClass)

Returns the first of the specific type. It uses Class.isAssignableFrom(Class) for the test. This is useful when you have generated a document in code and KNOW there is only one definition in it

Type Parameters:

T - the type of definition

Parameters:

definitionClass - the definition class

Returns:

an optional definition which will be empty of there are none

getOperationDefinition

public Optional<OperationDefinition> getOperationDefinition(String name)

This will allow you to find a OperationDefinition with the specified name in the document

Parameters:

name - the name of the operation to find

Returns:

an optional OperationDefinition

getChildren

public List<Node> getChildren()

Returns:

a list of the children of this node

getNamedChildren

public NodeChildrenContainer getNamedChildren()

Description copied from interface: Node

Alternative to Node.getChildren() where the children are not all in one list regardless of type but grouped by name/type of the child.

Returns:

a container of the child nodes

withNewChildren

public Document withNewChildren(NodeChildrenContainer newChildren)

Description copied from interface: Node

Replaces the specified children and returns a new Node.

Parameters:

newChildren - must be empty for Nodes without children

Returns:

a new node

isEqualTo

public boolean isEqualTo(Node o)

Description copied from interface: Node

Compares just the content and not the children.

Parameters:

o - the other node to compare to

Returns:

isEqualTo

deepCopy

public Document deepCopy()

Returns:

a deep copy of this node

toString

public String toString()

Overrides:

toString in class Object

accept

public TraversalControl accept(TraverserContext<Node> context,
 NodeVisitor visitor)

Description copied from interface: Node

Double-dispatch entry point. A node receives a Visitor instance and then calls a method on a Visitor that corresponds to a actual type of this Node. This binding however happens at the compile time and therefore it allows to save on rather expensive reflection based instanceOf check when decision based on the actual type of Node is needed, which happens redundantly during traversing AST. Additional advantage of this pattern is to decouple tree traversal mechanism from the code that needs to be executed when traversal "visits" a particular Node in the tree. This leads to a better code re-usability and maintainability.

Parameters:

context - TraverserContext bound to this Node object

visitor - Visitor instance that performs actual processing on the Nodes(s)

Returns:

Result of Visitor's operation. Note! Visitor's operation might return special results to control traversal process.

newDocument

public static Document.Builder newDocument()

transform

public Document transform(Consumer<Document.Builder> builderConsumer)