graphql.language

Class VariableDefinition

java.lang.Object

graphql.language.AbstractNode<VariableDefinition>

graphql.language.VariableDefinition

All Implemented Interfaces:

Node<VariableDefinition>

public class VariableDefinition
extends AbstractNode<VariableDefinition>

Constructor Summary

Constructors

Constructor and Description
VariableDefinition()
VariableDefinition(java.lang.String name, Type type)
VariableDefinition(java.lang.String name, Type type, Value defaultValue)

Method Summary

Modifier and Type	Method and Description
TraversalControl	accept(TraverserContext<Node> context, NodeVisitor visitor) Double-dispatch entry point.
VariableDefinition	deepCopy()
java.util.List<Node>	getChildren()
Value	getDefaultValue()
java.lang.String	getName()
Type	getType()
boolean	isEqualTo(Node o) Compares just the content and not the children.
void	setDefaultValue(Value defaultValue)
void	setName(java.lang.String name)
void	setType(Type type)
java.lang.String	toString()

Methods inherited from class graphql.language.AbstractNode

deepCopy, deepCopy, getComments, getSourceLocation, setComments, setSourceLocation

Methods inherited from class java.lang.Object

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

Constructor Detail

VariableDefinition

public VariableDefinition()

VariableDefinition

public VariableDefinition(java.lang.String name,
                          Type type)

VariableDefinition

public VariableDefinition(java.lang.String name,
                          Type type,
                          Value defaultValue)

Method Detail

getDefaultValue

public Value getDefaultValue()

setDefaultValue

public void setDefaultValue(Value defaultValue)

getName

public java.lang.String getName()

setName

public void setName(java.lang.String name)

getType

public Type getType()

setType

public void setType(Type type)

getChildren

public java.util.List<Node> getChildren()

Returns:

a list of the children of this 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 VariableDefinition deepCopy()

Returns:

a deep copy of this node

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.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.