Package graphql.language

Class SelectionSet

java.lang.Object

graphql.language.AbstractNode<SelectionSet>

graphql.language.SelectionSet

All Implemented Interfaces:

Node<SelectionSet>, Serializable

@PublicApi
public class SelectionSet
extends AbstractNode<SelectionSet>

See Also:

• Serialized Form

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static final class	SelectionSet.Builder

Field Summary

Fields

Modifier and Type	Field	Description
static final String	CHILD_SELECTIONS

Constructor Summary

Constructors

Modifier	Constructor	Description
	SelectionSet(Collection<? extends Selection> selections)	alternative to using a Builder for convenience
protected	SelectionSet(Collection<? extends Selection> selections, 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.
SelectionSet	deepCopy()
List<Node>	getChildren()
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.
List<Selection>	getSelections()
<T extends Selection> List<T>	getSelectionsOfType(Class<T> selectionClass)	Returns a list of selections of the specific type.
boolean	isEqualTo(Node o)	Compares just the content and not the children.
static SelectionSet.Builder	newSelectionSet()
static SelectionSet.Builder	newSelectionSet(Collection<? extends Selection> selections)
String	toString()
SelectionSet	transform(Consumer<SelectionSet.Builder> builderConsumer)
SelectionSet	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_SELECTIONS

public static final String CHILD_SELECTIONS

See Also:

• Constant Field Values

Constructor Details

SelectionSet

protected SelectionSet(Collection<? extends Selection> selections,
 SourceLocation sourceLocation,
 List<Comment> comments,
 IgnoredChars ignoredChars,
 Map<String,String> additionalData)

SelectionSet

public SelectionSet(Collection<? extends Selection> selections)

alternative to using a Builder for convenience

Parameters:

selections - the list of selection in this selection set

Method Details

getSelections

public List<Selection> getSelections()

getSelectionsOfType

public <T extends Selection> List<T> getSelectionsOfType(Class<T> selectionClass)

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

Type Parameters:

T - the type of selection

Parameters:

selectionClass - the selection class

Returns:

a list of selections of that class or empty list

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 SelectionSet 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 SelectionSet 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.

newSelectionSet

public static SelectionSet.Builder newSelectionSet()

newSelectionSet

public static SelectionSet.Builder newSelectionSet(Collection<? extends Selection> selections)

transform

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